Space efficient
Highest delay to length ratio
Long delay: more than 600 ps
Low insertion loss variation
Rugged design
The F-VDL Series Manually Variable Fiber Optic Delay Lines provide precision optical path variation of more than 18 cm (600 ps). The compact and rugged design makes the device ideal for integration into network equipment and test instrumentation for precision optical path length adjustment or timing alignment.
Passive time division multiplexing
TDM bit alignment
Fiber interferometers
| Single Mode Models | Polarization Maintaining Models | |
|---|---|---|
| Wavelength Range (nm) | 1260 to 1650 | |
| Optical Delay Range (ps) |
0 ~ 330 ps continuous for 330 ps model 0 ~ 600 ps continuous for 600 ps model | |
| Scale Resolution | 0.05 mm | |
| Insertion Loss (dB) | (typical) 1.0 | |
| Return Loss (dB) | 50 | |
| Extinction Ratio (dB) | N/A | >18 |
| Maximum Optical Power (mW) | 300 | |
| Operating Temperature Range (°C) | 0 to 40 | |
| Storage Temperature Range (°C) | -40 to 60 | |
| Fiber Type | SMF-28 | Fujikura PM Panda fiber |
| Dimensions [in. (mm)] | 1.0 x 2.1 x 6.0 (25.4 x 53.3 x 152) | |
Note: Values are referenced without connectors
1 There is a fiber length delay contribution of approximately 170 ps at the 0 point.