Motor Driven Variable Optical Time Delay

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0 to 600ps range with 1fs resolution

The Motor Driven Variable Optical Time Delay features fast speed and high accuracy.  It consists of two collimators and a movable reflector controlled by a precise step motor. Light from input fiber collimator projects into free space and is collected by the output fiber collimator. The distance the light travels in free space is varied by the movable reflector.  The driving circuit is connected to the computer through RS232 or USB interface for operation.  We offer graphic control interface.

0 to 600ps range with 1fs resolution

  • Low Cost
  • Low Loss
  • Fast
  • Wide Delay Range
  • High Resolution
  • High Reliability
  • Easy to Use

  • PMD Compensation
  • OCT
  • Interferometric Sensor
  • Spectroscopy

Parameters Min Typical Max Unit
Wavelength band 1060 1550 2000 nm
Insertion Loss1 1.0 1.5 dB
Return Loss  45 dB
PDL 0.2 dB
Switching Speed 400 mm/s
Time Delay Range 50 600 ps
Resolution 1 ps
PER2 18 22 25 dB
Optical Power Handling 400 mW
Durability (life cycle) 107
Operating Temperature 0 70 oC
Storage Temperature -40 85 oC
Fiber Type SM / PM
Control Interface RS232 / USB



  1. Exclude connectors
  2. PM version only
P/N: N/A