• Flexure Design for Maximum Stability
• Stainless Steel Construction
• SM05 (0.535"-40) Compatible
• ±0.25 mm Range in X and Y Directions
• Resolution: 200 µm/rev

The CP1XY offers ±0.25 mm of XY travel manipulated by M2.5 x 0.20 fine pitch adjusters. The stainless steel flexure design provides excellent long-term stability and is ideal for fiber coupling applications or experiments that use spatial filters or pinholes, which require fine positioning. The 0.35" (8.89 mm) long center bore is tapped through with an SM05 (0.535"-40) thread to allow the integration of our extensive SM05-threaded family of products. The CP1XY is vacuum compatible to 10^-5 Torr. We recommend using two POLARIS-SM05RR vacuum-compatible, stainless steel retaining rings (sold separately) to secure an optic in the bore while under vacuum conditions. Alternatively, for non-vacuum applications, we offer SM05RR anodized aluminum retaining rings.

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CXY1A XY Translator Coupled to a CT1A Z-Axis Translation Mount Using an SM1S15 Lens Tube

• Accepts Ø1.00" (Ø25.4 mm) Optics up to 0.39" (10.0 mm) Thick
• ±1 mm Travel in X and Y via 3/16"-100 Adjusters
• Compatible with 30 mm Cage Systems
• SM1 (1.035"-40) Threading for Compatibility with Our Extensive Line of SM1 Lens Tubes

The CXY1A XY Translator provides ±1 mm of travel perpendicular to the optical axis of a 30 mm cage system. This translation is actuated by two 3/16"-100 adjusters, which are lockable via a 0.035" hex key. The movable carriage is internally SM1 (1.035"-40) threaded and directly accepts Ø1" optics up to 0.39" (10.0 mm) thick when secured using the included SM1RR retaining ring. The fixed back side is also threaded to allow SM1 lens tubes to be attached. The center carriage has been designed to offer pure X and Y translation. The mount features engraved vertical and horizontal tick marks to use as an alignment aid for the mounting carriage.

The translation mount also features four through holes for use with our ER cage rods. One side-located M4 x 0.7 locking setscrew in each bore can be tightened using a 5/64" (2.0 mm) hex key to secure a cage rod.

For applications requiring a greater travel range, we offer XY translators with ±2.5 mm travel.

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The CXY1QA mount integrated into a cage system.

• Accepts Ø1.00" (Ø25.4 mm) Optics
• ±1 mm Travel in X and Y via 3/16"-100 Adjusters
• Magnetically Coupled, Quick-Release Mounting Carriage (Extra Carriages Sold Separately)
• Compatible with 30 mm Cage Systems
• SM1 (1.035"-40) Threading for Compatibility with Our Extensive Line of SM1 Lens Tubes

The CXY1QA XY Translation Mount is similar to the CXY1A mount sold above, but features a quick-release mounting carriage for easy exchange of components within a 30 mm Cage System. This mount provides ±1 mm of travel perpendicular to the optical axis of a 30 mm cage system. This translation is actuated by two 3/16"-100 lockable adjusters. The movable center carriage and magnetically coupled mounting carriage are internally SM1 (1.035"-40) threaded and directly accept Ø1" optics up to 0.39" (10.0 mm) and 0.20" (5.0 mm) thick, respectively, when secured using the included SM1RR retaining ring. The fixed back side is also threaded to allow SM1 lens tubes to be attached. The center carriage has been designed to offer pure X and Y translation.

The mount features engraved vertical and horizontal tick marks to use as an alignment aid for the movable carriage. A dot is engraved on both pieces of the mount to indicate the correct orientation of the quick-release carriage. Aligning the dots ensures the quick-release carriage is properly secured. The quick-release carriage also features a dedicated white space for denoting the optic that has been mounted within it. This allows for easy identification if more than one carriage is being used in a setup, as extra CXY1QF quick-release carriages can be purchased separately.

The translation mount also features four through holes for use with our ER cage rods. One side-located M4 x 0.7 locking setscrew in each bore can be tightened using a 5/64" (2.0 mm) hex key to secure a cage rod.

To remove the quick-release carriage from the mount when in a closed cage system, detach the carriage, rotate it 90°, and then take it out of the system. There must be at least 1.60" (40.6 mm) separating the edge of the quick-release carriage and the next component in the system to provide enough clearance during removal.

• Torque is relative to the plane of the magnets. We do not recommend using a lens tube longer than 3" with this mount.

• Accepts Ø1.00" Optics up to 0.48" (12.2 mm) Thick
• Compact Design; ±0.12" (±3.0 mm) Travel
• Compatible with Our Ø1" SM1 Lens Tubes
• 4-40 Taps on Front and Back Provide 30 mm Cage Compatibility

The ST1XY translation mounts offer ±3.0 mm of travel provided by one of three drive types: adjuster screw, micrometer, or differential drive. They utilize hardened tool steel components on all moving parts to ensure long-term, drift-free operation. The ST1XY is designed to connect with our extensive line of Ø1" SM1 Lens Tubes as well as our 30 mm cage assemblies to offer great flexibility when building optical systems.

The translating SM1-threaded carriage accepts optics up to 0.48" (12.2 mm) thick when using two SM1RR retaining rings (included). A stationary internal SM1 thread with 0.14" (3.5 mm) depth is present on the other side of the mount that allows for coupling to stationary SM1 Lens Tubes. Three 8-32 (M4) tapped holes are provided on the bottom surface to allow direct mounting on our Ø1/2" Posts.

Thorlabs also offers the CXY1A XY Translator, which has Ø6 mm through holes for cage rods, as opposed to the 4-40 taps on the ST1XY translation mounts. These through holes permit the CXY1A to slide along the optic axis.

The ST1XY-D(/M) features DM22 differential drives. For more information about this drive, including operation and adjustment knob reattachment, please visit our DM22 differential drive page.

• Designed Specifically for Use with the ST1XY Series of XY Translators (Featured Above)
• Connect Two Internally Threaded Cage Components with ER Rods
• SM1 (1.035"-40) Threaded Through Hole
• Four 4-40 Screws Included

The ST1CP is a bolt-on adapter designed specifically for use with the ST1XY-series of XY translators. Like our ERSCB adapter, this plate can be used to connect two internally threaded cage components with ER rods. First thread the four included 4-40 screws through the ST1CP through hole and into the internally bored side of the ER rod (as shown in the figure to the left). Then, remove the back plate on an ST1XY stage and secure this adapter plate in its place using the four outer 2-56 counterbored through-holes. Once attached, this adapter plate keeps the cage and any SM1-threaded component attached to the adapter plate stationary, while enabling an optic inside the ST1XY stage to move relative to these fixed components.

Alternatively, this adapter can also be attached to the front side (i.e., the side without the removable mount) of an ST1XY stage using the included 4-40 screws. In this case, the front side of the ST1XY stage will no longer be cage compatible (although the back side still is). However, the advantage of this configuration is that two SM1-compatible components can be attached to the ST1XY stage (one on each side) and an optic inside the stage can be moved relative to these fixed components.

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The SPT1CT and SPT1C Slip Plates assembled in a cage system using the ER series cage rods.

• ±0.04" (±1.0 mm) of Adjustment in Both X and Y Directions
• Center-Located SM1 (1.035"-40) Threaded Hole in Front Slip Plate and Smooth Bore in Fixed Back Plate
• Position Front Plate by Hand and Lock in Place by Tightening Locking Screws
• Secure Back Plate to Four Cage Rods via Side-Located Setscrews
• 8-32 (M4) Threaded Hole in Base of Back Plate for Post Mounting

The SPT1C(/M) and SPT1CT(/M) Slip Plate Positioners are designed to provide coarse XY positioning of optical components within our 30 mm Cage Assembly System. This design provides for manual adjustment only and is best utilized in conjunction with an alignment laser to monitor centricity. The front plate can be locked into position against the fixed plate via two locking screws, which can be tightened using a 5/64" (2 mm) hex key.

The SPT1C(/M) slip plate accomodates Ø1" optics up to 0.08" (2.0 mm) thick, while the thicker front plate on the SPT1CT(/M) can hold Ø1" optics up to 0.34" (8.6 mm) thick. Unmounted optics can be secured with SM1RR Retaining Rings, two of which are included with the SPT1CT(/M). The center-located SM1 (1.035"-40) tapped through hole also directly accepts externally SM1-threaded components. Four through holes in the back plate of each mount with side-located locking screws accept ER series cage rods for compatibility with our 30 mm cage systems.

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Front View of VRC1CPT Drop-In Alignment Plate

• Drop-In Beam Alignment Tools
• Small Through Hole Aligned at Center of 30 mm Cage Assembly

The CPA1 and CPA2 Alignment Plates are convenient tools for aligning cage-based optical systems. These drop-in plates feature a small through hole at the exact center of the 30 mm cage assembly that is used for aligning visible beams. For easy alignment, the through hole is surrounded by engraved rings, which indicate Ø4 mm, Ø7 mm, Ø10 mm, and Ø13 mm. The CPA1 provides a Ø0.9 mm through hole, while the CPA2 provides a Ø5 mm through hole.

The VRC1CPT, VRC2CPT, VRC4CPT, and VRC6SCPT Alignment Plates are specifically designed to align UV to MIR beams in a cage-based optical assembly. These plates have concentric alignment ring engravings identical to the CPA1 (shown to the left) plate on the back. The fronts of the VRC1CPT, VRC2CPT, and VRC4CPT plates each include a Ø1/2" (Ø12.7 mm), non-rotating fluorescing alignment disk made of the same material used in our VRC1, VRC2, and VRC4 Viewing Cards, respectively. Alternatively, the front of the VRC6SCPT plate includes a Ø0.39" (Ø10.0 mm), non-rotating MIR alignment disk made of the same thermochromic liquid crystal material used in our VRC6S Viewing Card. The disk on the VRC1CPT, VRC2CPT, or VRC4CPT plate has a Ø1.5 mm hole centered on the plate's Ø0.9 mm hole, and the disk on the VRC6SCPT plate has a Ø2.0 mm hole centered on the plate's Ø0.9 mm hole.

Item #	Absorption Band	Emission Band	Sensitivity Graph	Minimum Detectable Power Density	Active Region Diameter	Alignment Features
VRC1CPT	250 - 540 nm	450 to 750 nm		N/A	1/2" (12.7 mm)	Ø0.9 mm Hole in Plate Ø1.5 mm Hole in Disk Center
VRC2CPT	400 - 640 nm, 800 - 1700 nm	~580 to 750 nm
VRC4CPT	790 - 840 nm, 870 - 1070 nm, 1500 - 1590 nm	~520 to 580 nm
VRC6SCPT	1.5 to >13.2 µm	N/A	N/A	0.05 mW/mm2 @ 1550 nm (22 °C)	0.39" (10.0 mm)	Ø0.9 mm Hole in Plate Ø2.0 mm Hole in Disk Center