Dispersion Compensators for Scan Lenses

  • Anti-Reflection Coated, Bulk Glass Compensators Designed for Thorlabs Scan Lenses
  • First and Second Order Dispersion Compensation
  • Mounted in Lens Tubes with SM Threading for Easy System Integration


18.9 mm Thick H-ZLAF52 Glass
for LSM03-VIS Scan Lens 


18.5 mm Thick N-SF8 Glass for
LSM02 and LSM02-BB Scan Lenses


37.2 mm Thick N-F2 Glass for
LSM54-850 Scan Lens 

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  • Three Designs Engineered for Use with Thorlabs Scan Lenses (See Table Below)
  • Mounted in an SM1 or SM05 Threaded Lens Tube
  • Engraved with Item # for Easy Identification

These single glass dispersion compensation blocks are designed for use with our LSM scan lenses. The glass type and thickness were chosen so that the dispersion matches the first and second order dispersion of the LSM scan lenses. The dispersion-compensating block is meant to be placed in the reference arm before the mirror, while the scan lens is placed in the sample arm. This configuration creates an identical amount of dispersion in each leg of the interferometer. Our dispersion compensators are mounted in either an SM1-threaded lens tube or SM05-threaded lens tube engraved with the item #.

Posted Comments:
miguel.miranda  (posted 2015-10-28 06:50:49.383)
Hi! Do you have dispersion data for the compensators, like GDD vs wavelength curves? Or maybe information about the exact thicknesses and glasses for each of them. Thanks!
besembeson  (posted 2015-11-04 02:11:27.0)
Response from Bweh at Thorlabs USA: I will contact you with this information.
tcohen  (posted 2013-01-17 16:16:00.0)
Response from Tim at Thorlabs: For others who may be interested, we were able to deliver this within two weeks. If there are any questions on availability, please contact us at sales@thorlabs.com and our team will be happy to assist with the most up to date information.
syim  (posted 2012-11-21 13:54:39.327)
Hi, it is not a feedback regarding the product, but shipping information. I have made an order of a CLS-SL through my agent company, and expected a fast shipping based on your website's information (3-5 days). But, to my surprise, I got a call from the company saying it will be available 2-3 months later. Please let me know. Thank you.
tcohen  (posted 2012-11-08 09:45:00.0)
Response from Tim at Thorlabs: This scan lens is suitable for use with an Olympus 180mm tube lens. The ITL200 Nikon tube lens is used in their research grade microscopes and can be used with Olympus objectives as well. However, we must be aware that magnification will not be what is noted, but slightly higher. As Nikon uses a 200mm focal length tube lens as opposed to this and standard Olympus design of 180mm focal length tube lenses, the magnification will be 200/180 times greater.
john.mccaskill  (posted 2012-11-01 12:41:59.313)
I would like to know if this scan lens would also be suitable for use with Olympus 180 mm tube lens and olympus objectives. I imagine that it is not advisable to mix the Nikon tube lens with our Olympus objectives.
tcohen  (posted 2012-10-30 10:35:00.0)
Response from Tim at Thorlabs: Thank you for contacting us. I will send you the .zmx file directly.
gir  (posted 2012-10-24 11:05:15.17)
Hello, I'd like to model to the LSM03-VIS in my optical design software, but it can only import ZMX files, not ZAR files. Is there any chance you could send me either 1) a ZMX version of the prescription info for the LSM03-VIS, or 2) simply a text version of that info, specifically the glass types, that I could enter by hand in my software? I can see from the STEP model what the geometry of the lenses is, but I don't know what kind of glass each one uses. Thank you!
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Material H-ZLAF52
AR-Coating Range
(Click for Plots)
400 nm - 700 nm
800 nm - 1400 nm 750 nm - 950 nm 950 nm - 1150 nm 1200 nm - 1400 nm
Clear Aperture 22.8 mm 10.9 mm
Surface Quality 40-20 Scratch-Dig 20-10 Scratch-Dig
Glass Thickness 18.9 mm
18.5 mm
17.8 mm
19.6 mm
17.3 mm
37.2 mm
Wavefront Error <λ/4 P-V at 633 nm
Mounting Threads SM1 (1.035"-40) SM05 (0.535"-40)
Scan Lenses
LSM54-850 LSM54-1050 LSM54-1310
Storage Casea Lid: OC2SM1
Canister: OC22
Lid: OC2SM1
Adapter: SM1A6
Canister: OC24
  • Available for Purchase Separately
Based on your currency / country selection, your order will ship from Newton, New Jersey  
+1 Qty Docs Part Number - Universal Price Available
LSM03DC-VIS Support Documentation
LSM03DC-VISDispersion Compensating Block for the LSM03-VIS Scan Lens
LSM02DC Support Documentation
LSM02DCDispersion Compensating Block for the LSM02 and LSM02-BB Scan Lenses
LSM03DC Support Documentation
LSM03DCDispersion Compensating Block for the LSM03 and LSM03-BB Scan Lenses
LSM04DC Support Documentation
LSM04DCDispersion Compensating Block for the LSM04 and LSM04-BB Scan Lenses
LSM05DC Support Documentation
LSM05DCCustomer Inspired! Dispersion Compensating Block for the LSM05 and LSM05-BB Scan Lens
LSM54DC1 Support Documentation
LSM54DC1Customer Inspired! Dispersion Compensating Block for the LSM54-850 Scan Lens
LSM54DC2 Support Documentation
LSM54DC2Customer Inspired! Dispersion Compensating Block for the LSM54-1050 Scan Lens
LSM54DC3 Support Documentation
LSM54DC3Customer Inspired! Dispersion Compensating Block for the LSM54-1310 Scan Lens
7-10 Days