Free Space Variable Optical Delay Lines

(Femtosecond Resolution, up to 4000ps delay, USB/RS232 GUI)
  • Low Cost
  • fs Resolution
  • Fast
  • 4000ps Delay
  • High Reliability
  • Dust Cover
  • Easy to Use
  • Integrated with USB/GUI Controller

Click 'Spec Sheet' for available configurations/part#


The Motor Driven Free Space Variable Optical Time Delay is an all-in-one module integrated with high precision optical position feed-back controller with USB/RS232 computer interface and user friendly GUI.  It features micron-level high resolution, unmatched low cost, fully covered dust-free moving track, compatible with various mirrors, all degree light path adjustments, and ease in use.  In operation, connecting the wall-pluggable power supply (included) and a computer via a USB cable (included) or a RS232 cable to the unit, the graphic control software (downloadable) will perform step scan in both forward and reverse direction.

The module come with a standard one year manufacture warranty.


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 Parameter Min Typical Max Unit
 Resolution 1466ps +-2 mm
2000ps +-7
4000ps +-9
Max Speed [2] 1466ps 20 mm/s
2000ps 20
4000ps 20
 Durability (Life cycle) 107
 Operating Temperature 0 70 ºC
 Storage Temperature -40 85 ºC
Mirror Size 1”