Thorlabs Inc.
Visit the Fiber-Coupled LEDs page for pricing and availability information

Fiber-Coupled LEDs

  • UV, Visible, and NIR Versions
  • Optimized Heat Management Results in Stable Output
  • Integrated Chip Stores LED Operating Parameters
  • Accepts SMA Fiber Connector

M625F2

625 nm Fiber-Coupled LED

Ø400 µm Core Patch Cable
(Not Included)

Integrated Power Cable

Large Heat Sink for
Optimized Heat Dissipation

M385FP1

385 nm Fiber-Coupled LED

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OVERVIEW

Legend
LED Mounted to a 50 mm Long Heat Sink LED Mounted to a 34 mm Long Heat Sink
Item # Color
(Click for
Spectrum)a		 Nominal
Wavelengtha,b		 Ø200 µm Core
Fiber Output
(Typ.)c,d,e		 Ø400 µm Core
Fiber Output
(Typ.)c,e,f
M280F5g Deep UV 280 nm 0.2 mW 0.8 mW
M310F1g Deep UV 308 nm 0.14 mW 0.51 mW
M325F4g Deep UV 325 nm 100 µW 350 µW
M340F4g Deep UV 340 nm 0.16 mW 0.75 mW
M365FP1g UV 365 nm 5.29 mW 15.5 mW
M375F3g UV 375 nm 1.57 mW 4.23 mW
M385FP1g UV 385 nm 7.7 mW 23.2 mW
M395F3g UV 395 nm 1.91 mW 6.8 mW
M395FP1g UV 395 nm 7.7 mW 29.8 mW
M405F3g UV 405 nm 0.93 mW 3.7 mW
M405FP1g UV 405 nm 7.7 mW 24.3 mW
M415F3g Violet 415 nm 7.0 mW 21.3 mW
M430F1g Violet 430 nm 2.9 mW 7.5 mW
M455F3 Royal Blue 455 nm 5.4 mW 24.5 mW
M470F4 Blue 470 nm 6.5 mW 20 mW
M490F4 Blue 490 nm 0.9 mW 2.8 mW
M505F3 Cyan 505 nm 3.7 mW 11.7 mW
M530F3 Green 530 nm 3.2 mW 9.6 mW
MINTF4 Mint 554 nm 8.5 mW 28 mW
M565F3h Lime 565 nm 4.4 mW 13.5 mW
M590F3 Amber 590 nm 1.5 mW 4.6 mW
M595F2h PC Amber 595 nm 4.0 mW 11.5 mW
M617F2 Orange 617 nm 4.4 mW 13.2 mW
M625F2 Red 625 nm 5.7 mW 17.5 mW
M660FP1 Red 660 nm 4.7 mW 15.5 mW
M680F4 Deep Red 680 nm 2.8 mW 9 mW
M700F4 Deep Red 700 nm 1.9 mW 6.4 mW
M740F2 Far Red 740 nm 2.1 mW 6.0 mW
M780F2 IR 780 nm 1.15 mW 7.0 mW
M810F3 IR 810 nm 6.1 mW 19.3 mW
M850F3 IR 850 nm 4.1 mW 13.4 mW
M880F2 IR 880 nm 0.58 mW 3.4 mW
M940F3 IR 940 nm 4.2 mW 14.2 mW
M970F3 IR 970 nm 2.4 mW 8.1 mW
M1050F3 IR 1050 nm 0.92 mW 3.0 mW
M1100F1 IR 1100 nm 1.1 mW 5.4 mW
M1200F1 IR 1200 nm 0.9 mW 2.5 mW
M1300F1 IR 1300 nm 0.77 mW 2.31 mW
M1450F1 IR 1450 nm 0.44 mW 1.34 mW
MBB1F1i Broadband 470 - 850 nmj 0.30 mW 1.2 mW
MWWHF2k Warm White 4000 Kl 7.9 mW 23.1 mW
MCWHF2k Cold White 6200 Kl 8.8 mW 27.0 mW
  • Due to variations in the manufacturing process and operating parameters such as temperature and current, the actual spectral output of any given LED will vary. Output plots and nominal wavelength specs are only intended to be used as a guideline.
  • For LEDs with a visible spectrum, the nominal wavelength indicates the dominant wavelength at which the LED appears brightest to the human eye. The nominal wavelength for visible LEDs may not correspond to the peak wavelength as measured by a spectrometer.
  • Measured at 25 °C
  • The M280F5, M310F1, M325F4, and M340F4 LEDs were tested using FG200AEA Ø200 µm Core, 0.22 NA Solarization-Resistant Multimode Fiber; the M1450F1 LED was tested using the FG200LCC Ø200 µm Core, 0.22 NA Multimode Fiber; all other LEDs were tested using FG200UCC Ø200 µm Core, 0.22 NA Multimode Fiber.
  • When Driven with the Maximum Current
  • The M280F5, M310F1, M325F4, and M340F4 LEDs were tested using FG400AEA Ø400 µm Core, 0.22 NA Solarization-Resistant Multimode Fiber; all other LEDs were tested using FT400EMT Ø400 µm Core, 0.39 NA Multimode Fiber.
  • Our 280 to 430 nm LEDs radiate intense UV light during operation. Precautions must be taken to prevent looking directly at the UV light and UV light protective glasses must be worn to avoid eye damage. Exposure of the skin and other body parts to the UV light should be avoided.
  • These LEDs are phosphor-converted and may not turn off completely when modulated above 10 kHz at duty cycles below 50%.
  • The MBB1F1 LED may not turn off completely when modulated at frequencies above 1 kHz with a duty cycle of 50%, as the broadband emission is produced by optically stimulating emission from phosphor. For modulation at frequencies above 1 kHz, the duty cycle may be reduced. For example, 10 kHz modulation is attainable with a duty cycle of 5%.
  • 10 dB Bandwidth
  • The MWWHF2 and MCWHF2 LEDs may not turn off completely when modulated at frequencies above 5 kHz, as the white light is produced by optically stimulating emission from phosphor.
  • Correlated Color Temperature

Features

  • Nominal Wavelengths Ranging from 280 nm to 1450 nm
  • Warm White (4000 K), Cold White (6200 K), and Broadband (470 - 850 nm) LEDs Also Available
  • Integrated Identification Chip (EEPROM) Stores LED Operating Parameters
  • Optimized Thermal Properties Lead to Stable Output Power
  • SMA Bulkheads Are Ideal for Use with Multimode Fiber Optic Patch Cables

Each fiber-coupled LED consists of a single LED that is coupled to the optical fiber using the butt-coupling technique. During this process, the fiber connector is positioned so that the end of the fiber will be as close as possible to the emitter, thereby minimizing losses at the fiber input and maximizing output power. The coupling efficiency is primarily dependent on the core diameter and the numerical aperture (NA) of the connected fiber. Larger core diameters and higher NA values give rise to reduced losses and increased output power at the end of the fiber. Additionally, high-OH content or solarization-resistant fibers are recommended for use with LED wavelengths below 400 nm (please refer to the table below for recommended patch cables).

Please note that the connectors on these fiber-coupled LEDs are intended for SMA connectors only. To prevent mechanical damage to the LED, the ferrule length of the attached connector must not exceed the maximum length for SMA connectors of 9.812 mm as defined by the EN61754-22:2005 standard.

The spectrum of each LED and associated data file can be viewed by clicking on the links in the table to the right. Multiple windows can be opened simultaneously in order to compare LEDs.

Optimized Thermal Management
These fiber-coupled LEDs possess good thermal stability properties. The 34 mm long, passively cooled heat sink used in most of our fiber-coupled LEDs is in direct contact with the metal-core circuit board on which the LED is mounted. This minimizes the degradation of optical output power caused by increased LED junction temperature. Some of our fiber-coupled LEDs with a higher power output (M365FP1, M385FP1, M395FP1, M405FP1, and M660FP1) are mounted to a 50 mm long heat sink for increased heat dissipation and thermal stability.

White Light and Broadband LED
Our cold white and warm white LEDs feature broad spectra that span several hundred nanometers. The difference in perceived color between these two LEDs can be described using the correlated color temperature, which indicates that the LED's color appearance is similar to a black body radiator at that temperature. In general, warm white LEDs offer a spectrum similar to a tungsten source, while cold white LEDs have a stronger blue component to the spectrum. Cold white LEDs are more suited for fluorescence microscopy applications or cameras with white balancing, because of a higher intensity at most wavelengths compared to warm white LEDs.

The MBB1F1 fiber-coupled LED has been designed to have relatively flat spectral emission over a wide wavelength range. Its FWHM bandwidth ranges from 500 nm to 780 nm, while the 10 dB bandwidth ranges between 470 nm and 850 nm. For more information on the spectrum of this broadband source, please see the table to the right.

Driver Options
Thorlabs offers six drivers compatible with some or all of these LEDs: LEDD1B, UPLED, DC40, DC2200, DC4100, and DC4104 (the latter two require the DC4100-HUB). See the LED Drivers tab for a list of specifications, and the Specs tab for driver compatibility information. The UPLED, DC40, DC2200, DC4100, and DC4104 drivers are capable of reading the current limit from the EEPROM chip of the connected LED and automatically adjusting the maximum current setting to protect the LED.

Optogenetics Applications
Our fiber-coupled LEDs are ideal light sources for optogenetics applications. They feature a variety of wavelength choices and a convenient interconnection to optogenetics patch cables. Additionally, up to four different light sources can be driven and modulated simultaneously with our DC4100 controller and DC4100-HUB hub. Click here for our entire line of optogenetics products.

Patch Cable Options
These LEDs are compatible with many of our multimode fiber patch cables; see below for a list of recommended fiber patch cables for different wavelength LEDs. In addition to SMA-terminated patch cables, we also offer hybrid patch cables with an SMA connector on one end and an FC/PC connector, ferrule end, or bare fiber on the other end. Cable configurations not available from stock can be requested through our custom patch cable tool.

Recommended Fiber and Patch Cables
LED Wavelength Fiber Type Stock Patch Cable
<350 nm FG400AEA
Ø400 µm, 0.22 NA,
Solarization Resistant		 M113L SMA - SMA
350 nm - 700 nm FT400UMT
Ø400 µm, 0.39 NA, High OH		 Custom Patch Cables
>400 nm FT400EMT
Ø400 µm, 0.39 NA, Low OH		 M28L SMA - SMA
M76L SMA - FC/PC
M118L SMA - Flat Cleave
M79L SMA - Ferrule

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SPECS

Legend
LED Mounted to a 50 mm Long Heat Sink LED Mounted to a 34 mm Long Heat Sink
Item # Color
(Click for
Spectrum
and Data)a		 Nominal
Wavelengtha,b		 Typical Ø200 µm
Core Fiber
Output Powerc,d,e		 Minimum Ø400 µm
Core Fiber
Output Powerc,e,f		 Typical Ø400 µm
Core Fiber
Output Powerc,e,f		 Maximum
Current
(CW)c		 Forward
Voltagec,e		 Bandwidth
(FWHM)c,e		 Typical
Lifetimec		 Recommended
Driversg
M280F5h Deep UV 280 nm 0.2 mW 0.5 mW 0.8 mW 500 mA 6.26 V 10 nm >1 000 h LEDD1B, DC40, UPLED, or DC2200
M310F1h Deep UV 308 nm 0.14 mW 0.3 mW 0.51 mW 600 mA 5 V 30 nm >10 000 h LEDD1B, DC40, UPLED, DC2200, DC4100i, or DC4104i
M325F4h Deep UV 325 nm 100 µW 260 µW 350 µW 600 mA 5.2 V 12 nm >5 000 h LEDD1B, DC40, UPLED, or DC2200
M340F4h Deep UV 340 nm 0.16 mW 0.45 mW 0.75 mW 600 mA 6.6 V 10 nm >1 000 h
M365FP1h UV 365 nm 5.29 mW 9.8 mW 15.5 mW 1400 mA 3.75 V 9 nm >23 000 h DC40 or DC2200
M375F3h UV 375 nm 1.57 mW 3.2 mW 4.23 mW 500 mA 3.7 V 9 nm >40 000 h LEDD1B, DC40, UPLED, DC2200, DC4100i, or DC4104i
M385FP1h UV 385 nm 7.7 mW 18 mW 23.2 mW 1400 mA 3.65 V 12 nm >40 000 h DC40 or DC2200
M395F3h UV 395 nm 1.91 mW 4.8 mW 6.8 mW 500 mA 4.5 V 16 nm >10 000 h LEDD1B, DC40, UPLED, DC2200, DC4100i, or DC4104i
M395FP1h UV 395 nm 7.7 mW 20.1 mW 29.8 mW 1400 mA 4.0 V 11 nm >10 000 h DC40 or DC2200
M405F3h UV 405 nm 0.93 mW 3.0 mW 3.7 mW 500 mA 3.6 Vj 12 nmj >10 000 h LEDD1B, DC40, UPLED, DC2200, DC4100i, or DC4104i
M405FP1h UV 405 nm 7.7 mW 19.3 mW 24.3 mW 1400 mA 3.45 V 12 nm >40 000 h DC40 or DC2200
M415F3h Violet 415 nm 7.0 mW 14.4 mW 21.3 mW 1500 mA 3.1 V 14 nm >10 000 h DC40 or DC2200
M430F1h Violet 430 nm 2.9 mW 5.3 mW 7.5 mW 500 mA 3.66 V 17 nm >10 000 h LEDD1B, DC40, UPLED, DC2200, DC4100i, or DC4104i
M455F3 Royal Blue 455 nm 5.4 mW 17 mW 24.5 mW 1000 mA 3.5 V 14 nm >10 000 h
M470F4 Blue 470 nm 6.5 mW 14 mW 20 mW 1000 mA 3.1 V 20 nm >50 000 h
M490F4 Blue 490 nm 0.9 mW 1.8 mW 2.8 mW 350 mA 3.2 V 26 nm >10 000 h
M505F3 Cyan 505 nm 3.7 mW 8.5 mW 11.7 mW 1000 mA 3.7 V 25 nm >10 000 h
M530F3 Green 530 nm 3.2 mW 6.8 mW 9.6 mW 1000 mA 2.9 V 30 nm >10 000 h
MINTF4 Mint 554 nm 8.5 mW 21 mW 28 mW 1225 mA 3.5 V N/A >10 000 h DC40, DC2200, LEDD1Bk, UPLEDk, DC4100i, or DC4104i
M565F3l Lime 565 nm 4.4 mW 9.9 mW 13.5 mW 700 mA 2.85 V 105 nm >10 000 h LEDD1B, DC40, UPLED, DC2200, DC4100i, or DC4104i
M590F3 Amber 590 nm 1.5 mW 3.3 mW 4.6 mW 1000 mA 2.6 V 16 nm >10 000 h
M595F2l PC Amber 595 nm 4.0 mW 8.7 mW 11.5 mW 1000 mA 3.1 V 80 nm >50 000 h
M617F2 Orange 617 nm 4.4 mW 10.2 mW 13.2 mW 1000 mA 2.2 V 15 nm >50 000 h
M625F2 Red 625 nm 5.7 mW 13.2 mW 17.5 mW 1000 mA 2.2 V 15 nm >50 000 h
M660FP1 Deep Red 660 nm 4.7 mW 10.6 mW 15.5 mW 1400 mA 2.7 V 18 nm >1 000 h DC40 or DC2200
M680F4 Deep Red 680 nm 2.8 mW 5.9 mW 9 mW 600 mA 2.4 V 20 nm >10 000 h LEDD1B, DC40, UPLED, DC2200, DC4100i, or DC4104i
M700F4 Deep Red 700 nm 1.9 mW 4.0 mW 6.4 mW 500 mA 2.1 V 19 nm >10 000 h
M740F2 Far Red 740 nm 2.1 mW 4.1 mW 6.0 mW 800 mA 2.7 V 22 nm >10 000 h
M780F2 IR 780 nm 1.15 mW 5.5 mW 7.0 mW 800 mA 2.1 V 28 nm >10 000 h
M810F3 IR 810 nm 6.1 mW 12.7 mW 19.3 mW 1000 mA 3.6 V 30 nm >10 000 h
M850F3 IR 850 nm 4.1 mW 8.6 mW 13.4 mW 1000 mA 3.2 V 30 nm >10 000 h
M880F2 IR 880 nm 0.58 mW 2.7 mW 3.4 mW 1000 mA 1.7 V 50 nm >10 000 h
M940F3 IR 940 nm 4.2 mW 10 mW 14.2 mW 1000 mA 3.8 V 60 nm >50 000 h
M970F3 IR 970 nm 2.4 mW 5.9 mW 8.1 mW 1000 mA 1.9 V 60 nm >10 000 h
M1050F3 IR 1050 nm 0.92 mW 2.3 mW 3.0 mW 600 mA 1.4 V 37 nm >10 000 h
M1100F1 IR 1100 nm 1.1 mW 2.0 mW 5.4 mW 1000 mA 1.4 V 50 nm >10 000 h
M1200F1 IR 1200 nm 0.9 mW 1.6 mW 2.5 mW 1000 mA 2.2 V 65 nm >10 000 h
M1300F1 IR 1300 nm 0.77 mW 1.42 mW 2.31 mW 1000 mA 1.7 V 80 nm >10 000 h
M1450F1 IR 1450 nm 0.44 mW 0.86 mW 1.34 mW 1000 mA 1.88 V 95 nm >10 000 h
MBB1F1m Broadband 470 - 850 nmn 0.30 mW 0.8 mW 1.2 mW 500 mA 3.6 V 250 nm >10 000 h
MWWHF2o Warm White 4000 Kp 7.9 mW 16.3 mW 23.1 mW 1000 mA 2.9 V N/A >50 000 h
MCWHF2o Cold White 6200 Kp 8.8 mW 21.5 mW 27.0 mW 1000 mA 2.9 V N/A >50 000 h
  • Due to variations in the manufacturing process and operating parameters such as temperature and current, the actual spectral output of any given LED will vary. Output plots and nominal wavelength specs are only intended to be used as a guideline.
  • For LEDs with a visible spectrum, the nominal wavelength indicates the dominant wavelength at which the LED appears brightest to the human eye. The nominal wavelength for visible LEDs may not correspond to the peak wavelength as measured by a spectrometer.
  • Measured at 25 °C
  • The M280F5, M310F1, M325F4, and M340F4 LEDs were tested using FG200AEA Ø200 µm Core, 0.22 NA Solarization-Resistant Multimode Fiber; the M1450F1 LED was tested using the FG200LCC Ø200 µm Core, 0.22 NA Multimode Fiber; all other LEDs were tested using FG200UCC Ø200 µm Core, 0.22 NA Multimode Fiber.
  • Driven at the Max Current
  • The M280F5, M310F1, M325F4, and M340F4 LEDs were tested using FG400AEA Ø400 µm Core, 0.22 NA Solarization-Resistant Multimode Fiber; all other LEDs were tested using FT400EMT Ø400 µm Core, 0.39 NA Multimode Fiber.
  • Drivers for which max current and max voltage are greater than or equal to the max current and forward voltage of the LED, respectively. See the LED Drivers tab for the specifications of each driver.
  • Our 280 to 430 nm LEDs radiate intense UV light during operation. Precautions must be taken to prevent looking directly at the UV light and UV light protective glasses must be worn to avoid eye damage. Exposure of the skin and other body parts to the UV light should be avoided.
  • This is a four-channel driver and requires the DC4100-HUB connector hub to drive fiber-coupled LEDs.
  • Driven at a Current of 350 mA
  • Due to the maximum current that can be provided by this driver, this LED can be driven near, but not at, full power.
  • These LEDs are phosphor-converted and may not turn off completely when modulated above 10 kHz at duty cycles below 50%.
  • The MBB1F1 LED may not turn off completely when modulated at frequencies above 1 kHz with a duty cycle of 50%, as the broadband emission is produced by optically stimulating emission from phosphor. For modulation at frequencies above 1 kHz, the duty cycle may be reduced. For example, 10 kHz modulation is attainable with a duty cycle of 5%.
  • 10 dB Bandwidth
  • The MWWHF2 and MCWHF2 LEDs may not turn off completely when modulated at frequencies above 5 kHz, as the white light is produced by optically stimulating emission from phosphor.
  • Correlated Color Temperature

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STABILITY

Stability
Click to Enlarge

LED Lifetime

One characteristic of LEDs is that they naturally exhibit power degradation with time. Often this power degradation is slow, but there are also instances where large, rapid drops in power, or even complete LED failure, occur. LED lifetimes are defined as the time it takes a specified percentage of a type of LED to fall below some power level. The parameters for the lifetime measurement can be written using the notation BXX/LYY, where XX is the percentage of that type of LED that will provide less than YY percent of the specified output power after the lifetime has elapsed. Thorlabs defines the lifetime of our LEDs as B50/L50, meaning that 50% of the LEDs with a given Item # will fall below 50% of the initial optical power at the end of the specified lifetime. For example, if a batch of 100 LEDs is rated for 150 mW of output power, 50 of these LEDs can be expected to produce an output power of ≤75 mW after the specified LED lifetime has elapsed.

Optimized Thermal Management

The thermal dissipation performance of these fiber-coupled LEDs has been optimized for stable power output. The heat sink is directly mounted to the LED mount so as to provide optimal thermal contact. By doing so, the degradation of optical output power that can be attributed to increased LED junction temperature is minimized.


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WAVELENGTH SHIFT


Click to Enlarge
The setup for testing the relationship between LED wavelength and current. See the table below for a complete item list.
Item # Description
- Fiber-Coupled LED
- SMA-to-FC/PC Fiber Patch Cable
LEDs with Wavelengths ≤405 nm: Custom Cable with FG105ACA Solarization Resistant Fiber
LEDs with Wavelengths >405 nm: M16L01
DC2200 High-Power LED Driver, 2 A Current Limit
- Fourier Transform Optical Spectrum Analyzer

LED Spectral Variation as a Function of Current

All LEDs will show some variation in their spectral profile and peak wavelength as a function of the drive current. For our fiber-coupled LEDs, we used an Optical Spectrum Analyzer (OSA) to track this wavelength shift as the current of the LED was increased from near zero to the maximum current.

LEDs have relatively broad, asymmetric emission profiles. The centroid wavelength of an LED is a weighted average of the wavelength across the emission profile (following a similar concept to center of mass calculations). It is defined as

Centroid Wavelength of an LED

where I(λ) is the intensity at each wavelength, λ. As a result, we chose to follow each LED's centroid wavelength as the current was varied in order to capture effects of both the peak wavelength shift and any changes to the overall spectral profile. The OSA's Peak Track mode will automatically calculate the centroid wavelength of a spectral peak, using a user-set lower intensity limit to determine the upper and lower limits (λ2 and λ1) of the wavelength range included in the calculation. In our case, we set the lower limit to 6 dB below the peak intensity.

For each LED, a DC2200 High-Power LED Driver was used to drive the LED over a range of preset current values. At each current value, the OSA took five scans across the LED spectrum and combined them to create an average spectrum. The OSA identified the peak wavelength by finding the highest intensity value within 50 nm of the predicted peak wavelength and then calculated a centroid wavelength as described above. Centroid wavelengths were identified every 0.05 A up to the current limit of the LED. The entire process was repeated four times for each LED. All measurements were taken with the OSA in the absolute power and high-resolution spectrometer modes (for more information on the OSA operating modes, see the full web presentation).

The results of these measurements are provided in the table below and can be viewed by clicking on the graph icons. For each LED, the centroid wavelengths over all of the runs were averaged for each current point and plotted. To give a sense of possible variation in performance, the minimum and maximum wavelengths measured at each current point over all of the experimental runs are indicated by red error bars. At the lowest current values, the LED intensity was too weak to rise above the level of the noise and provide a reasonably accurate measurement of the wavelength. In these cases, we have omitted the affected currents from the graphs.

Experimental Limitations

  • Only one unit of each item # was tested. These plots are intended to provide a general sense of how the centroid wavelength changes with current and do not provide an absolute measure of the wavelength output; some variation in the centroid wavelength is expected for different LEDs with the same item #.
  • The LEDs were not temperature controlled.
Item # Nominal
Wavelength		 Max Current
(CW)		 Centroid Wavelength
vs. Current
(Click for Plot)
M365FP1a 365 nm 1400 mA Wavelength vs Current
M375F3a 375 nm 500 mA Wavelength vs current
M385FP1a 385 nm 1400 mA Wavelength versus Current
M405F3a 405 nm 500 mA Wavelength vs Current
M405FP1a 405 nm 1400 mA Wavelength vs Current
M530F3 530 nm 1000 mA LED wavelength versus current
  • The spectra for these UV LEDs are close to the lower wavelength limit of the OSA201, where the noise floor of the instrument is highest. As a result, the larger error bars on the measurements at low currents are due to systematic noise in the measurement and not indicative of the LED performance. The OSA201 was operated in absolute power mode for all measurements; more information on how the noise floor of the OSA varies with wavelength can be found here.
Item # Nominal
Wavelength		 Max Current
(CW)		 Centroid Wavelength
vs. Current
(Click for Plot)
M595F2 595 nm 1000 mA LED wavelength versus current
M617F2 617 nm 1000 mA LED wavelength versus current
M625F2 625 nm 1000 mA LED wavelength versus current
M740F2 740 nm 800 mA Wavelength vs Current
M780F2 780 nm 800 mA LED wavelength versus current
M880F2 880 nm 1000 mA Wavelength vs Current

Hide Pin Diagram

PIN DIAGRAM

Pin Specification Color
1 LED Anode Brown
2 LED Cathode White
3 EEPROM GND Black
4 EEPROM IO Blue
Pin Out

Pin Connection
The diagram to the right shows the male connector of the fiber-coupled LED assembly. It is a standard M8 x 1 sensor circular connector. Pins 1 and 2 are the connection to the LED. Pins 3 and 4 are used for the internal EEPROM (electrically erasable programmable read-only memory) in these LEDs. If using an LED driver that was not purchased from Thorlabs, be careful that the appropriate connections are made to Pin 1 and Pin 2 and that you do not attempt to drive the LED through the EEPROM pins.


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LED DRIVERS

To fully support the maximum optical power of the LED you intend to drive, ensure that the max voltage and max current of the driver are equal to or greater than those of the LED. 

Compatible Drivers LEDD1B UPLEDa DC40a DC2200a DC4100a,b DC4104a,b
Click Photos to Enlarge LEDD1B Driver upLED Driver DC40 Driver DC2200 Driver DC4100 Driver DC4104 Driver
LED Driver Current Output (Max)c 1.2 A 1.2 A 4.0 Ad LED1 Terminal: 10.0 A
LED2 Terminal: 2.0 Ae		 1.0 A per Channel 1.0 A per Channel
LED Driver Forward Voltage (Max)f 12 V 8 V 14.0 Vd 50 V 5 V 5 V
Modulation Frequency Using External Input (Max) 5 kHzg - 5 kHzg 250 kHzg,h,i,j 100 kHzg,h,j
(Simultaneous Across all Channels)		 100 kHzg,h,j
(Independently Controlled Channels)
External Control Interface(s) Analog (BNC) USB 2.0 USB 2.0, TTL, and Analog (BNC) USB 2.0 and Analog (BNC) USB 2.0 and Analog (BNC) USB 2.0 and Analog (8-Pin)
Main Driver Features Very Compact Footprint
60 mm x 73 mm x 104 mm
(W x H x D)		 USB-Controlled Driver Current Up to 4.0 A,
Manual and USB-Controlled		 Touchscreen Interface with Internal and External Options for Pulsed and Modulated LED Operation 4 Channelsb 4 Channelsb
EEPROM Compatible: Reads Out LED Data for LED Settings - Yes Yes Yes Yes Yes
LCD Display - - - Yes Yes Yes
  • Automatically Limits to LEDs Max Current Via EEPROM Readout
  • The DC4100 or DC4104 can power and control up to four LEDs simultaneously when used with the DC4100-HUB. The LEDs on this page all require the DC4100-HUB when used with the DC4100 or DC4104.
  • LEDs with maximum current ratings higher than the driver's maximum current output can be driven, but will not reach full power. See the Specs tab for the maximum current rating of each LED.
  • The DC40 LED Driver is designed to automatically select the appropriate current/voltage combination for the LEDs on this page. Please note that the maximum current and forward voltage are interdependent; the DC40 driver cannot drive an LED with a 14.0 V forward voltage at 4.0 A. Please see the full web presentation for more information.
  • The fiber-coupled LEDs sold below are compatible with the LED2 Terminal.
  • LEDs with forward voltage greater than the driver's maximum forward voltage cannot be driven. See the Specs tab for the forward voltage specification of each LED.
  • The MBB1F1 LED may not turn off completely when modulated at frequencies above 1 kHz with a duty cycle of 50%, as the broadband emission is produced by optically stimulating emission from phosphor. For modulation at frequencies above 1 kHz, the duty cycle may be reduced. For example, 10 kHz modulation is attainable with a duty cycle of 5%.
  • The M565F3 and M595F2 are phosphor-converted and may not turn off completely when modulated above 10 kHz at duty cycles below 50%.
  • Small Signal Bandwidth: Modulation not exceeding 20% of full scale current. The driver accepts other waveforms, but the maximum frequency will be reduced.
  • The MWWHF1 and MCWHF1 LEDs may not turn off completely when modulated at frequencies above 5 kHz, as the white light is produced by optically stimulating emission from phosphor.

Hide LED Selection Guide

LED SELECTION GUIDE

This tab includes all LEDs sold by Thorlabs. Click on More [+] to view all available wavelengths for each type of LED pictured below.

Light Emitting Diode (LED) Selection Guide
Click Photo to Enlarge
(Representative; Not to Scale)
Type Unmounted LEDs Pigtailed LEDs LEDs in
SMT Packages		 LED Arrays LED Ring Light Cage-Compatible
Diffuse Backlight LED
Light Emitting Diode (LED) Selection Guide
Click Photo to Enlarge
(Representative; Not to Scale)
Type PCB-
Mounted LEDs		 Heatsink-
Mounted LEDs		 Collimated LEDs for Microscopyb Fiber-
Coupled LEDsc		 High-Power LEDs for Microscopy Multi-Wavelength
LED Source Optionsd
  • Measured at 25 °C
  • These Collimated LEDs are compatible with the standard and epi-illumination ports on the following microscopes: Olympus BX/IX (Item # Suffix: -C1), Leica DMI (Item # Suffix: -C2), Zeiss Axioskop (Item # Suffix: -C4), and Nikon Eclipse (Bayonet Mount, Item # Suffix: -C5).
  • Typical power when used with MM Fiber with Ø400 µm core, 0.39 NA.
  • Our Multi-Wavelength LED Sources are available with select combinations of the LEDs at these wavelengths.
  • Typical power for LEDs with the Leica DMI collimation package (Item # Suffix: -C2).
  • Minimum power for the collimated output of these LEDs. The collimation lens is installed with each LED.
  • Typical power for LEDs with the Olympus BX and IX collimation package (Item # Suffix: -C1).
  • Percentage of LED intensity that emits in the blue portion of the spectrum, from 400 nm to 525 nm.

Hide Fiber-Coupled LEDs

Fiber-Coupled LEDs


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M365FP1, M385FP1, M395FP1, M405FP1, and M660FP1 are each mounted to a 50 mm long heat sink.
  • Integrated EEPROM for Automated LED Settings with Compatible Thorlabs Controllers
  • Long Lifetimes >10 000 Hours (Except M280F5, M325F4, M340F4, and M660FP1; See Specs Tab for Details)
  • Output can be Modulated with Suitable Controller (See LED Drivers Tab)
  • Stable Output Intensity by Optimized Thermal Management
  • Accepts SMA Fiber Connector

These fiber-coupled LEDs each consist of an LED mounted to a heat sink with an SMA fiber bulkhead. They can be easily integrated into an optical setup using one of our SMA-terminated multimode fiber patch cables. When the patch cable is connected to the SMA bulkhead on the LED housing, the LED will be butt-coupled to the SMA fiber connector. Hybrid patch cables can be used to transition from an SMA connector to an FC/PC connector, ferrule end, or bare fiber. For compatible drivers to power these LEDs, please see the LED Drivers tab. Please note that the minimum output powers specified below apply when the LED is used with a Ø400 µm core multimode fiber patch cable.

For applications where a hybrid patch cable is not practical, we can configure these fiber-coupled LEDs with FC/PC bulkheads; contact Tech Support for details.


Part Number
Description
Price
Availability
M280F5
280 nm, 0.5 mW (Min) Fiber-Coupled LED, 500 mA, SMA
$480.70
Today
M310F1
308 nm, 300 µW (Min) Fiber-Coupled LED, 600 mA, SMA
$661.11
Today
M325F4
325 nm, 260 µW (Min) Fiber-Coupled LED, 600 mA, SMA
$977.02
Lead Time
M340F4
340 nm, 0.45 mW (Min) Fiber-Coupled LED, 600 mA, SMA
$467.02
Today
M365FP1
365 nm, 9.8 mW (Min) Fiber-Coupled LED, 1400 mA, SMA
$727.02
Today
M375F3
375 nm, 3.2 mW (Min) Fiber-Coupled LED, 500 mA, SMA
$531.00
Today
M385FP1
385 nm, 18 mW (Min) Fiber-Coupled LED, 1400 mA, SMA
$727.02
Today
M395F3
395 nm, 4.8 mW (Min) Fiber-Coupled LED, 500 mA, SMA
$417.16
Today
M395FP1
395 nm, 20.1 mW (Min) Fiber-Coupled LED, 1400 mA, SMA
$634.16
Today
M405F3
405 nm, 3.0 mW (Min) Fiber-Coupled LED, 500 mA, SMA
$531.00
Today
M405FP1
405 nm, 19.3 mW (Min) Fiber-Coupled LED, 1400 mA, SMA
$727.02
Today
M415F3
415 nm, 14.4 mW (Min) Fiber-Coupled LED, 1500 mA, SMA
$471.67
Today
M430F1
430 nm, 5.3 mW (Min) Fiber-Coupled LED, 500 mA, SMA
$257.17
Today
M455F3
455 nm, 17 mW (Min) Fiber-Coupled LED, 1000 mA, SMA
$469.25
Today
M470F4
470 nm, 14 mW (Min) Fiber-Coupled LED, 1000 mA, SMA
$296.82
Today
M490F4
490 nm, 1.8 mW (Min) Fiber-Coupled LED, 350 mA, SMA
$352.34
Today
M505F3
505 nm, 8.5 mW (Min) Fiber-Coupled LED, 1000 mA, SMA
$436.74
Today
M530F3
530 nm, 6.8 mW (Min) Fiber-Coupled LED, 1000 mA, SMA
$450.00
Today
MINTF4
554 nm, 21 mW (Min) Fiber-Coupled LED, 1225 mA, SMA
$582.32
Today
M565F3
565 nm, 9.9 mW (Min) Fiber-Coupled LED, 700 mA, SMA
$510.10
Today
M590F3
590 nm, 3.3 mW (Min) Fiber-Coupled LED, 1000 mA, SMA
$511.08
Today
M595F2
595 nm, 8.7 mW (Min) Fiber-Coupled LED, 1000 mA, SMA
$449.03
Today
M617F2
617 nm, 10.2 mW (Min) Fiber-Coupled LED, 1000 mA, SMA
$449.03
Lead Time
M625F2
625 nm, 13.2 mW (Min) Fiber-Coupled LED, 1000 mA, SMA
$449.03
Today
M660FP1
660 nm, 10.6 mW (Min) Fiber-Coupled LED, 1400 mA, SMA
$494.12
Today
M680F4
680 nm, 5.9 mW (Min) Fiber-Coupled LED, 600 mA, SMA
$289.19
Today
M700F4
700 nm, 4.0 mW (Min) Fiber-Coupled LED, 500 mA, SMA
$311.69
Lead Time
M740F2
740 nm, 4.1 mW (Min) Fiber-Coupled LED, 800 mA, SMA
$531.00
Today
M780F2
780 nm, 5.5 mW (Min) Fiber-Coupled LED, 800 mA, SMA
$457.35
Today
M810F3
810 nm, 12.7 mW (Min) Fiber-Coupled LED, 1000 mA, SMA
$328.03
Today
M850F3
850 nm, 8.6 mW (Min) Fiber-Coupled LED, 1000 mA, SMA
$332.64
Today
M880F2
880 nm, 2.7 mW (Min) Fiber-Coupled LED, 1000 mA, SMA
$457.35
Today
M940F3
940 nm, 10 mW (Min) Fiber-Coupled LED, 1000 mA, SMA
$452.29
Today
M970F3
970 nm, 5.9 mW (Min) Fiber-Coupled LED, 1000 mA, SMA
$401.80
Today
M1050F3
1050 nm, 2.3 mW (Min) Fiber-Coupled LED, 600 mA, SMA
$634.72
Today
M1100F1
1100 nm, 2.0 mW (Min), Fiber-Coupled LED, 1000 mA, SMA
$379.99
Today
M1200F1
1200 nm, 1.6 mW (Min) Fiber-Coupled LED, 1000 mA, SMA
$382.35
Lead Time
M1300F1
1300 nm, 1.42 mW (Min), Fiber-Coupled LED, 1000 mA, SMA
$386.39
Today
M1450F1
1450 nm, 0.86 mW (Min), Fiber-Coupled LED, 1000 mA, SMA
$380.47
Today
MBB1F1
Broadband (470 - 850 nm), 0.8 mW (Min) Fiber-Coupled LED, 500 mA, SMA
$812.53
Today
MCWHF2
6200 K, 21.5 mW (Min) Fiber-Coupled LED, 1000 mA, SMA
$449.03
Today
MWWHF2
4000 K, 16.3 mW (Min) Fiber-Coupled LED, 1000 mA, SMA
$449.03
Today

Hide Mounted LED Mating Connector

Mounted LED Mating Connector

  • Female 4-Pin Pico (M8) Receptacle
  • M8 x 1 Thread for Connection to Mounted LED Power Cable
  • M8 x 0.5 Panel-Mount Thread for Custom Housings
  • 0.5 m Long, 24 AWG Wires
  • IP 67 and NEMA 6P Rated

The CON8ML-4 connector can be used to mate mounted LEDs featured on this page to user-supplied power supplies. We also offer a male 4-Pin M8 connector cable (item # CAB-LEDD1).

Pin Color Specification Pin Assignment
1 Brown LED Anode
2 White LED Cathode
3 Black EEPROM GND
4 Blue EEPROM IO
CON8ML-4
CON8ML-4 Shown Connected to the 4-Pin M8 Plug of Mounted LED

Part Number
Description
Price
Availability
CON8ML-4
4-Pin Female Mating Connector for Mounted LEDs
$36.54
Today