Visible Superluminescent Diodes (SLDs), Butterfly Package

Center Wavelengths from 405 nm to 650 nm
Integrated TEC Element and Thermistor
SM Fiber Pigtail with FC/APC Connector

SLD450B

450 nm, 5 mW, SM Pigtail

SLD650B

650 nm, 3 mW, SM Pigtail

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Overview
Pin Diagrams
Feedback
Selection Guide

Recommended Mount / Controller Options
Item #	Mount / Controller Combination
SLD405B	LM14S2 Mount and ITC4000 Series Current and TEC Controller or LM14S2 Mount, LDC200 Series Current Controller, and TED200C TEC Controller
SLD450B
SLD510B
SLD635B	CLD1015 All-in-One Mount and Controller
SLD650B	CLD1015 All-in-One Mount and Controller

Features

Center Wavelengths from 405 nm to 650 nm
Typical Output Powers from 1.5 mW to 5 mW
3 nm to 8 nm Typical 3 dB Bandwidth
14-Pin Butterfly Package Pigtailed with 1 m of SM Fiber
2.0 mm Narrow Key FC/APC Connector
Integrated TEC and Thermistor
Compatible with Thorlabs' Laser Diode Mounts and Controllers (See Table to the Right)

Superluminescent Diodes (SLDs) are excellent high-power, broadband light sources that are ideal for use in applications such as optical sensing, display technology, metrology, and imaging. This page contains SLDs with center wavelengths from 405 nm to 650 nm that are built into a butterfly package. Thorlabs also offers NIR SLDs for wavelengths from 810 nm to 1550 nm, many of which are ideal for spectral-domain optical coherence tomography.

Each device is built into a 14-pin butterfly package with an integrated thermoelectric cooler (TEC) and thermistor to ensure output stability. For more information on the pin assignments, see the Pin Diagrams tab; note that the SLD650B 650 nm SLD is the only model that includes a monitor photodiode. The SLD output is coupled into an SM fiber with terminated with a 2.0 mm narrow key FC/APC connector. We do not recommend using these SLDs with components that are prone to back reflections, such as FC/PC connectors, because optical feedback can diminish the output power or damage the SLD.

The SLDs featured on this page are single spatial mode and have a near-Gaussian optical spectrum. More detailed typical specifications for each item, as well as mechanical drawings, are available in the tables below. Each SLD is shipped with an individualized product data sheet, which includes information on the spectrum and operating parameters of the specific device.

Butterfly Package, Type 1 (All Models Except SLD650B)

Pin	Description	Pin	Description
1	TEC (+)	8	Not Connected
2	Thermistor	9	Not Connected
3	Not Connected	10	SLD Anode (+)
4	Not Connected	11	SLD Cathode (-)
5	Thermistor	12	Not Connected
6	Not Connected	13	Case Ground
7	Not Connected	14	TEC (-)

Butterfly Package, Type 1 (SLD650B Only)

Pin	Description	Pin	Description
1	TEC (+)	8	Not Connected
2	Thermistor	9	Not Connected
3	Monitor Diode Anode	10	SLD Anode (+)
4	Monitor Diode Cathode	11	SLD Cathode (-)
5	Thermistor	12	Not Connected
6	Not Connected	13	Case Ground
7	Not Connected	14	TEC (-)

Posted Comments:
jjadvani (posted 2024-10-17 10:05:49.0) Dear Larry, thank you for contacting Thorlabs. You can access CAD drawings with all dimensions by clicking the red file icon next to the part number and then selecting Auto CAD pdf for technical drawings of the product.

Superluminescent Diode Performance:

The rows shaded green below denote SLDs that are suitable for use in OCT systems.

Click on an Item # and then select the Documents tab to find product document download links, including full spec sheets.

Item #	Center Wavelength	Package	Output Power^a	Bandwidth (3 dB)	Integrated Isolator	Equivalent Benchtop Source
SLD405B	405 nm	Butterfly, SM Pigtail	5 mW	3 nm	No	No
SLD450B	450 nm	Butterfly, SM Pigtail	5 mW	6 nm	No	No
SLD450T	450 nm	TO-56	10 mW	5 nm	No	No
SLD510B	510 nm	Butterfly, SM Pigtail	1.5 mW	8 nm	No	No
SLD635B	635 nm	Butterfly, SM Pigtail	3 mW	6 nm	No	No
SLD635T	635 nm	TO-56	10 mW	5 nm	No	No
SLD650B	650 nm	Butterfly, SM Pigtail	3 mW	6 nm	No	No
SLD650T	650 nm	TO-56	10 mW	5 nm	No	No
SLD770S	770 nm^c	Butterfly, SM Pigtail	5.5 mW	18 nm	No	No
SLD810S	810 nm^c	Butterfly, SM Pigtail	15 mW	30 nm	No	No
SLD830S-A10W	830 nm^c	Butterfly, SM Pigtail	10 mW (Min)	60 nm	No	No
SLD830S-A20W	830 nm^c	Butterfly, SM Pigtail	20 mW (Min)	55 nm	No	No
SLD830S-A10	830 nm^c	Butterfly, SM Pigtail	13 mW	20 nm	No	No
SLD830S-A20	830 nm^c	Butterfly, SM Pigtail	22 mW	20 nm	No	No
SLD840	840 nm^c	Butterfly, SM Pigtail	4 mW	70 nm	No	No
SLD840P	840 nm^c	Butterfly, PM Pigtail	4 mW	70 nm	No	No
SLD850S-A10W	850 nm^c	Butterfly, SM Pigtail	10 mW (Min)	60 nm	No	No
SLD850S-A20W	850 nm^c	Butterfly, SM Pigtail	20 mW (Min)	55 nm	No	No
SLD880S-A7	880 nm^c	Butterfly, SM Pigtail	7 mW	40 nm	No	No
SLD880S-A25	880 nm^c	Butterfly, SM Pigtail	25 mW	40 nm	No	No
SLD920S	920 nm^c	Butterfly, SM Pigtail	15 mW	65 nm	No	No
SLD920P	920 nm^c	Butterfly, PM Pigtail	15 mW	65 nm	No	No
SLD930S-A40W	930 nm^c	Butterfly, SM Pigtail	40 mW	45 nm	No	No
SLD930P-A40W	930 nm^c	Butterfly, PM Pigtail	40 mW	45 nm	No	No
SLD970S-A40W	970 nm^c	Butterfly, SM Pigtail	40 mW	50 nm	No	No
SLD970P-A40W	970 nm^c	Butterfly, PM Pigtail	40 mW	50 nm	No	No
SLD1050S	1050 nm^c	Butterfly, SM Pigtail	8 mW	50 nm	No	No
SLD1050P	1050 nm^c	Butterfly, PM Pigtail	8 mW	50 nm	No	No
SLD1050S-A60	1050 nm^c	Butterfly, SM Pigtail	60 mW	70 nm	No	No
SLD1050P-A60	1050 nm^c	Butterfly, PM Pigtail	60 mW	70 nm	No	No
SLD1220	1220 nm^c	Butterfly, SM Pigtail	5 mW	90 nm	Yes: 50 dB Isolation	No
SLD1220P	1220 nm^c	Butterfly, PM Pigtail	5 mW	90 nm	Yes: 50 dB Isolation	No
SLD1021S	1310 nm^c	Butterfly, SM Pigtail	12.5 mW	85 nm	No	S5FC1021S
SLD1018S	1310 nm^c	Butterfly, SM Pigtail	30 mW	45 nm	No	S5FC1018S S5FC1018P
SLD1018P	1310 nm^c	Butterfly, PM Pigtail	30 mW	45 nm	No	S5FC1018S S5FC1018P
SLD1310	1315 nm^c	Butterfly, SM Pigtail	30 mW	90 nm	Yes: 50 dB Isolation	No
SLD1310P	1315 nm^c	Butterfly, PM Pigtail	30 mW	90 nm	Yes: 50 dB Isolation	No
SLD1325	1325 nm^c	Butterfly, SM Pigtail	10 mW (Min)	100 nm (Min)	Yes: 30 dB (Min) Isolation	No
SLD1330	1325 nm^c	Butterfly, SM Pigtail	40 mW	90 nm	Yes: 50 dB Isolation	No
SLD1330P	1325 nm^c	Butterfly, SM Pigtail	40 mW	90 nm	Yes: 50 dB Isolation	No
SLD1410	1400 nm^c	Butterfly, SM Pigtail	5 mW	98 nm	Yes: 30 dB Isolation	No
SLD1410P	1400 nm^c	Butterfly, PM Pigtail	5 mW	98 nm	Yes: 30 dB Isolation	No
SLD1450S	1450 nm^c	Butterfly, SM Pigtail	25 mW	54 nm	No	No
SLD1450P	1450 nm^c	Butterfly, PM Pigtail	25 mW	54 nm	No	No
SLD1550S-A1	1550 nm^c	Butterfly, SM Pigtail	1.0 mW	110 nm	No	No
SLD1550P-A1	1550 nm^c	Butterfly, PM Pigtail	1.0 mW	110 nm	No	No
SLD1550S-A2	1550 nm^c	Butterfly, SM Pigtail	2.5 mW	90 nm	No	S5FC1550S-A2 S5FC1550P-A2
SLD1550P-A2	1550 nm^c	Butterfly, PM Pigtail	2.5 mW	90 nm	No	S5FC1550S-A2 S5FC1550P-A2
SLD1005S	1550 nm^c	Butterfly, SM Pigtail	22 mW	50 nm	No	S5FC1005S
SLD1550S-A40	1550 nm^c	Butterfly, SM Pigtail	40 mW	33 nm	No	No
SLD1550P-A40	1550 nm^c	Butterfly, PM Pigtail	40 mW	33 nm	No	No
SLD1610	1610 nm^c	Butterfly, SM Pigtail	27 mW	57 nm	No	No
SLD1610P	1610 nm^c	Butterfly, PM Pigtail	27 mW	57 nm	No	No

Values are typical unless otherwise noted.
Basic superluminescent diode characteristics can be measured by increasing current (I) while measuring the device voltage (V) and light output (L). The resulting data is usually referred to as an LIV curve.
For more information on how the center wavelength for our NIR SLDs is defined, please see the Specs tab on the NIR Superluminescent Diodes presentation.

Visible Superluminescent Diodes, Butterfly Package

Item #^a	Wavelength	Power	Operating Current (Max)	3 dB Bandwidth	Monitor Photodiode^b	Pin Code	Spectral Shape	Spatial Mode
SLD405B	405 nm	5 mW	100 mA	3 nm	No	14-Pin Type 1	Near Gaussian	Single Mode
SLD450B	450 nm	5 mW	160 mA	6 nm
SLD510B	510 nm	1.5 mW	500 mA	8 nm
SLD635B	635 nm	3 mW	60 mA	6 nm
SLD650B	650 nm	3 mW	100 mA	6 nm	Yes

All values are typical unless otherwise indicated.
Additional specifications are available by clicking on the blue icon.