Manual Variable Optical Delay Line – VariDelay™ I VDL-001
General Photonics’ manual variable optical delay line provides precision optical path variation of more than 18 cm (600 ps). The compact, rugged design makes the device ideal for integration in network equipment, test instruments, and optical coherence tomography (OCT) systems for precision optical path length or timing alignment.
Applications:
Fiber interferometers
Optical coherence tomography (OCT)
Passive time division multiplexing
TDM bit alignment
Unique Features:
Space efficient
Highest delay to length ratio
Long delay: >600 ps available
Low insertion loss variation
Rugged design
Specifications
Operating Wavelength2
SM: 840 ± 50nm, 1060 ±50 nm, 1260-1650 nm
PM: 840, 1060, 1310 or 1550 nm ± 50 nm
Optical Delay Range3
0 ~ 330 ps (single pass model)
0 ~ 600 ps (single pass model)
0 ~ 1200 ps (double pass model)
Readout Scale Resolution
0.05 mm
Insertion Loss1
1.0 dB nominal (single pass)
1.5 dB nominal (double pass)
Insertion Loss Variation1
± 0.3 dB over entire range for 330 ps model
± 0.5 dB over entire range for 600 ps model
± 0.7 dB over entire range for 1200 ps model
PDL1
0.1 dB (SM model)
Return Loss1
50 dB
Extinction Ratio
> 18 dB for PM model
Optical Power Handling
300 mW
Operating Temperature
0°C to 40°C
Storage Temperature
−40°C to 60°C
Fiber Type
840nm: HI780 or PM Panda
1060nm: HI1060 or PM Panda
1310 and/or 1550nm: SMF-28 or PM Panda
Dimensions
330 ps model: 4.2” (L) × 2.1” (W) × 1.0” (H)
600 or 1200 ps models: 6.0” (L) × 2.1” (W) × 1.0” (H)
Notes:
1. Specifications in table apply for a device without connectors, measured over 1310 ± 50 nm or 1550 ± 50 nm at 23±5°C. Some specifications will change for other wavelengths.
2. Other wavelengths available upon request. Contact General Photonics for details.
3. For a double pass device, input and output signals travel on the same pigtail, so a circulator or PBS may be necessary to separate input and output signals for some applications. Double pass not available for 840 or 1060nm.
Ordering Information:
Configuration Notes:
1. For SM pigtails, the default configuration is 3mm jacketed. For PM pigtails, the default configuration is 900μm loose tube jacketed.
2. Wavelength: 35 option (dual-window 1310/1550nm) is available only for SM single-pass devices. PM or double-pass devices are single-window (e.g. 1310 or 1550nm) only.
3. Double-pass only available with SM fiber.
4. Double-pass not available for 840 or 1060nm.
商品属性 [波长] SM: 840 ± 50nm, 1060 ±50 nm, 1260-1650 nm PM: 840, 1060, 1310 or 1550 nm ± 50 nm [光纤类型] 840nm: HI780 or PM Panda 1060nm: HI1060 or PM Panda 1310 and/or 1550nm: SMF-28 or PM Panda