Fiber Phase Shifter
The FPS-002 is an all fiber device that shifts or modulates phase by up to 75π at frequencies from DC to 20 kHz.
The FPS-002 is a small, piezo-driven phase shifter that works by stretching a length of fiber. It has a lower half- wave voltage than the FPS-001 (~2V compared to 10-20V). Like the FPS-001, it is an all fiber design and offers the benefits of low loss and back reflection. Two different size packages are available to accommodate the bend diameter requirements of different fibers.
- Small half-wave voltage
- Low IL, PDL, and residual amplitude modulation
- Frequencies up to 20 kHz
Frequency range 0-20 kHz Total phase shift range (500 Hz) >65π (1550nm) Half-wave voltage (500 Hz) 2.5-4.5V (small frame)
0.7-1.5V (large frame)
Resonance frequency 8-14 kHz typical Half-wave voltage (resonance) 0.1-0.5V typical Fiber type
SM: 1310/1550nm: Corning ClearCurve ZBL or equiv.
1060nm: Corning HI1060 or equiv.
780nm: Nufern 780HP or equiv.
PM: 1550nm: Bend insensitive PM with MFD=6.5μm
1310nm: Bend insensitive PM with MFD=6.0μm
1060nm: Nufern PM 980XP or equiv
IL <0.5 dB (at λ c , excluding mode coupling loss and connectors PDL SM: <;0.05 dB (excluding connectors)
PM: <0.1 dB (excluding connectors)
Residual amplitude modulation ±0.01 dB (1550nm) PER PM: >18 dB, with connectors Internal fiber length
(fiber inside enclosure)
36 ± 2 cm (small frame)
93 ± 2 cm (large frame)
For full specifications, please download the data sheet.