Motorized Optical Delay Line Module
The MDL-002 family of motorized variable optical delay lines provides optical path length adjustment of up to 560 ps in single-pass configuration. Driven by a DC motor with an integrated encoder, the MDL-002 has a delay resolution of less than 0.3µm (1 fs).
The MDL-002 is a fiber coupled delay line with the delay adjustment path in free space. It is driven by a DC motor with integrated encoder, and combines delay ranges of up to 560 ps single pass with scan speeds of up to 256 ps/s. Three configurations of the MDL-002 are available: 1) an integrated unit for use on the bench, 2) a two-piece unit with the optical head and control unit separated for installation into customer equipment, and 3) an OEM version that replaces the control unit with a miniature controller board.
All three versions can be remote controlled via RS-232. The standard controller unit also has an integrated keypad and LCD display. The delay line is available with either single mode or PM fiber pigtails.
- Long delay range
- Multiple controller configurations
- Scan speed up to 256 ps/s.
Center wavelengths (λc )
SM, single pass: 1310/1550 dual window, 1060, or 840nm
SM, double pass: 1310 or 1550nm
PM, single pass: 1310, 1550, 1060, or 840nm
Wavelength range λc ±50nm Optical delay range
Single-pass: 330 ps or 560 ps
Double-pass: 1120 ps
Mechanical position accuracy ±3µm single pass
±3µm double pass
Mechanical position repeatability ±3µm single pass
±3 µm double pass
Optical delay resolution 0.3µm or 1 fs per encoder count, single pass
0.6µm or 2 fs per encoder count, double pass
IL 1.0 dB nominal (1310/1550nm single pass)
1.5 dB nominal (840nm or 1060nm single pass)
1.5 dB nominal (1310 or 1550nm double pass)
IL variation over delay range ±0.3 dB (330 ps model)
±0.5 dB (560 ps model)
±0.7 dB (1120 ps model)
For full specifications, please download the data sheet.