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FPS-002 Phase Shifter

Product information "FPS-002 Phase Shifter"

780-1550 nm; Total Phase Shift >65π; IL <0.5 dB; RL >50, >55, >58 dB; PDL <0.05, <0.1 dB; Residual Amplitude Modulation ±0.01 dB

Coherent or interferometric sensor systems, such as distributed acoustic sensors (DAS), often require a low-loss, low-cost phase shifter or modulator to obtain the desired sensing signals. General Photonics’ FPS-002 is an all-fiber device that shifts or modulates phase shifts up to 75π at frequencies from DC to 20 kHz.

The FPS-002 phase shifter requires a lower half-wave voltage than the FPS-001 phase shifter module: only 2 V compared to up to 20 V. Like the FPS-001, it is an all-fiber design and offers the benefits of low loss and back reflection. Two different size packages (small frame or large frame) are available to accommodate the bend diameter requirements of different fibers.

Key Features:

  • Low Insertion Loss (IL): <0.5 dB (at λc, Excluding Connectors)
  • Low Polarization Dependent Loss (PDL): <0.05 dB (SM), <0.1 dB (PM)
  • Return Loss (RL): >58 dB (Without Connectors), >55 dB (With APC Connectors), >50 dB (With PC Connectors)
  • Low Residual Amplitude Modulation: ±0.01 dB at 1550 nm
  • Total Phase Shift (@500 Hz, Vpp = 150 V): >65π (@ 1550 nm)
  • Low Half-wave Voltage (@ 500 Hz): 2.5 to 4.5 V Typical (Small Frame), 0.7 to 1.5 V Typical (Large Frame)
  • Operating Wavelength: 780, 1060, 1310, 1550 nm
  • Fiber Type: ClearCurve ZBL, HI1060, 780 HP, PM, PM980XP
  • Capacitance of Piezo: 0.18 µF
  • Maximum Applied Voltage: 150 V
  • Compact Size: 35 x 17 x 10 mm (Small Frame), 45 x 27 x 11 mm (Large Frame)

Applications: Fiber Interferometers; Fiber Laser Systems; Fiber Sensor Systems

Manufacturer "General Photonics"
Headquartered in Chino, CA, USA, General Photonics develops and builds innovative optical instruments and modules to fuel the growth of optical networks, sensor systems and biomedical diagnosis systems. With more than 52 issued US patents and numerous pending applications, General Photonics offers the most complete line of instruments, modules and components for dynamic polarization management and measurement as well as optical delay and timing control in the industry. General Photonics‘ broad range of instruments comprises polarization controllers, stabilizers, synthesizers, analyzers and scramblers as well PMD or PDL emulators and sources. For polarization measurement, General Photonics offers polarization crosstalk analyzers, polarimeters, optical component analyzers and OCDR systems. Tunable lasers and SLED light sources as well as composite material scanners complete the company’s instrument portfolio. On the modules side, General Photonics provides devices for controlling, scrambling and tracking of polarization as well as polarimeters, polarization state generators, depolarizers, Mach-Zehnder interferometers or balanced photodetectors. For optical delay purposes, General Photonics’ module range includes optical delay lines, phase shifters and fiber stretchers.
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