FPS-002 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.
Key Features
Specifications
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) |
