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Optical Delay Line with Driver

Motorized Variable Optical Delay Line provides precision optical path length adjustment of up to 500 ps. Driven by a stepping motor and driver has been integrated inside following the RS-232 standard, the MDL has a delay resolution about 0.76 μm (2.5 fs). In addition, its advanced motion design guarantees longevity for long-term continuous operation. Low insertion loss and high reliability make this device ideal for integration in optical coherence tomography (OCT) systems, network equipment and test instruments for precision optical path length control or timing alignment.
  • Product Detail

Key Features

Applications

Excellent Repeatability

Optical Coherence Tomography

Driver Integrated Inside, RS-232 Standard

Test Instrumentation Applications


Specifications

 Parameter

Unit

Value

 Center Wavelength (λc)

nm

1310 or 1550 or 1060

 Operation Wavelength

nm

λc ± 50

 Optical Delay Range

ps

0 - 500 ps Continuous

 Zero Point Delay Offset1

ps

~ 440

 Optical Delay Resolution2

-

0.76 μm  or 2.5 fs per encoder count

 Repeatability3

μm

5

 Max. Move Rate

mm/s

8

 Max. Insertion Loss

dB

1.2

 Max. Insertion Loss Variation

dB

0.5

 Max. Temperature Dependent Loss

dB

0.25

 Max. Wavelength Dependent Loss

dB

± 0.3

 Max. Polarization Dependent Loss

dB

0.1

 Min. Extinction Ratio (for PM model)

dB

20

 Min. Return Loss

dB

50

 Max. Optical Power Handling (Continuous Wave)

mW

300

 Electrical Interface

-

DC 5V3A

-

USB

 Operating Temperature

 °C

0 to + 40

 Storage Temperature

 °C

- 40 to + 60

 Fiber Type

-

Singlemode or PM Panda fiber


1IL is 0.5 dB higher, RL is 5 dB lower and ER is 2 dB lower for each connector added, measured at center wavelength.
2Absolute delay at 0 ps setting measured to the edge of the enclosure (excluding caps, boots, and pigtails).

3Delay resolution & repeatability based on angular resolution of stepper motor and pitch of lead-screw. Measured at 1/4-full-step (microstepping technology).


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