Skip to main content

POS-20X Polarization Stabilizers

Product information "POS-20X Polarization Stabilizers"

1060, 1310, 1550 nm; SOP Recovery Time <5 ms; SOP Tracking Speed 32 π/s; Repeatability <0.1 dB; IL 0.1-1.2 dB; RL >50 dB

General Photoncs’ POS-20X series of polarization stabilizers maintain stable output states of polarization (SOP) against rapid input SOP fluctuations, compensating for an input polarization discontinuity in as fast as 5 ms, or tracking without resets against a continuous input SOP rotation of up to 32 π/s.

The POS-20X architecture includes a polarization controller , in-line polarization monitor, and proprietary algorithms to find and maintain the target SOP. The instruments’ output fiber can be either single mode (SM) fiber or polarization maintaining (PM) fiber with the output polarization aligned to its slow axis.

When a polarizer is placed at the output, the maximum power fluctuation caused by input polarization fluctuation is less than 0.1 dB. These instruments can be used to eliminate polarization fluctuations in fiber systems, suppress noise figure in optical amplifiers, reduce PDL effects, demultiplex polarization division multiplexed channels, and eliminate polarization fading in coherent communication and fiber sensor systems.

The devices feature a bright OLED display for easy setup and optimization of operation parameters such as control step size, feedback delay, activation threshold, and minimum or maximum search. They can accept either optical or electrical feedback. The POS-20X series of polarization stabilizers comprise four models with different configurations to meet different application requirements: POS-202, POS-203 and POS-204.

POS-202 has two optical ports on the front panel for signal input and output as well as an internal polarization monitor. It stabilizes the output SOP to linear, aligned to the slow axis of the output PM fiber.

POS-203 has optical ports for signal input and output and a third port for an optical feedback signal. It automatically optimizes the output SOP to either maximize or minimize and optical or electrical feedback signal. It also allows the operator to control the step size, feedback delay, activation threshold, and search algorithm (maximum or minimum) from the front panel as well as remotely via one of the digital interfaces.

POS-204 has four optical ports on the front panel for polarization controller input and output, and for polarization monitor input and output. As with POS-203, there is also an electrical port to accept an external electrical feedback signal from a user’s own external monitor circuit. Either the optical or electrical feedback signal can be used for stabilizer control. The polarization controller tunes the output polarization to maximize or minimize the selected feedback signal.

Key Features:

  • Reset-free Operation
  • External Feedback Ports
  • Tunable Operation Parameters
  • SOP Recovery Time: <5 ms
  • SOP Tracking Speed: 32 π/s
  • Repeatability: <0.1 dB
  • Front Panel Control Parameter Setup
  • Calibrated Wavelengths: 1060, 1310, 1550 nm
  • Operating Wavelength Range: Calibrated Wavelength ±50 nm Standard
  • Low Insertion Loss: 0.1 to 1.2 dB
  • Return Loss: >50 dB
  • Isolation in Orthogonal Polarization: 20 dB
  • Optical Power Handling: 6 to 30 dBm

Applications: Eliminate Polarization Fluctuations in Fiber Systems; Suppress Noise Figure in Optical Amplifiers; Reduce PDL Effects; Demultiplex Polarization Division Multiplexed Channels; Stabilize Output SOP of High-power Laser Amplifiers; Coherent Communication

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.
Related links of the manufacturer

Customers also viewed

High Reliability Fused Fiber Optic Components
955-1620 nm; Number of Legs 1x2, 2x2; RL >50->55 dB; Optical Power Handling 4 W; Dimensions Ø3.0 x 50-85 mm Gooch & Housego’s range of high reliability (HI-REL) fused fiber optic components are deployed in environments such as undersea and space where the costs of component replacement are prohibitive, and reliability is of premier concern. Gooch & Housego (G&H) is established as a supplier of these components to major undersea equipment manufacturers. G&H’s HI-REL capability is built upon the foundation of a long-established history of manufacturing very reliable components for land-based (or terrestrial) systems in volume. Full facilities are available to carry out customer-specific HI-REL qualification programs, which can include accelerated ageing and Weibull analysis. Manufacturing is carried out on specially developed workstations. Advanced fiber management, in-process screening and customer-specific validation tests are implemented to further enhance component reliability. Failure rates for undersea telecommunication systems and components are often described using a FIT rate (Failures in Time). The fused fiber couplers from our HI REL coupler range offer a very low 0.1 FIT rate, equivalent to one failure in roughly fifty thousand components in 25 years. The ultra-low loss of G&H fused fiber components helps to promote low noise figure and improved system margin in undersea transmission systems. Components are supplied in regular (bare fiber), semi-ruggedized (ø0.9 mm sleeving) or custom housings, depending on the installation environment. Please contact AMS Technologies to discuss your specific requirements. Services for HI REL customers include custom qualification programs, dedicated workstations, full traceability of materials and processing, advanced fiber management, and customer-specific validation tests. G&H high reliability fused fiber optic component types available include fused fiber couplers, tap couplers, wavelength division multiplexers (WDMs) and pump combiners: FFC-xxxxHBxx0 series high reliability fused couplers are available for the 980 nm band (FFC-xx3xHB2x0) with coupling ratios of 5%, 10% or 50% and OFS–BFO5635–02 optical fiber as well as for C or L band (FFC-xxxxHB1x0) with coupling ratios of 2%, 5%, 10% or 50% and Corning SMF-28e+ Photonic optical fiber. FFP-xx3xxxHx0 series high reliability fused polarization maintaining (PM) couplers are available for five wavelength ranges from 915 to 1599 nm with coupling ratios of 1%, 5%, 10% or 50% and 250 µm buffer Panda PM optical fiber. FPU-XXX3XXHX0 series high reliability PM low ratio tap couplers tap-off low power from a signal path whilst maintaining polarization through the component. G&H proprietary PM manufacturing technology provides tap ratios as low as 0.01% with ultra-low loss and high polarization extinction ratio. These PM low ratio tap couplers are available for any operating wavelength from 1450 to 1620 nm with coupling ratios of 0.01%, 0.1%, 1%, 5% or 10% and Nufern PM14XX C-A optical fiber. FFW-xC3xH2xx0 series high reliability wavelength division multiplexers (WDMs) are available for 1550 nm (C band) signal wavelength and pump wavelengths of 980 nm (FFW-5C3xH22x0, OFS BFO5635-02 optical fiber) as well as 1480 nm (FFW-3C3xH21x0, Corning SMF-28e+ Photonic optical fiber). FPW-5C3xH2xx0 series high reliability 980/1550 nm PM wavelength division multiplexers (WDMs) combine multiple wavelengths of light in PM fiber whilst maintaining polarization. In common with all PM components, it is necessary to launch into either the slow or the fast axis to maintain polarization. For the G&H FPW-5C3xH2xx0 PM WDMs, specifications are based on slow axis launch, although fast axis versions are also available if requested. PBC-xxxxxxxxx series high reliability polarization beam combiners enable the efficient combination of two orthogonally polarized sources of light into a common output fiber. This allows EDFA (Erbium Doped Fiber Amplifier) designers to double pump powers whilst ensuring pump redundancy should a pump failure occur, enabling higher power EDFAs and in turn greater data carrying capacity. Applications include high-power optical amplifiers and undersea systems. All ports consist of polarization maintaining fiber. Key Features: Established High Reliability Supplier Manufactures Using HI-REL Methodology Operating Wavelength Range: 955 to 1620 nm Number of Legs: 1x2, 2x2, 2x2 Terminated High Performance High Optical Power Handling: 4 W Low Loss Return Loss: >50 to >55 dB High Polarization Extinction Ratio (PER, Polarization Maintaining (PM) Components) Slow Axis Operation as Standard, Fast Axis Operation on Request (PM Components) Full Qualification Facilities Available Customer-specific Compliance Design Standard 0.1 FITs (Failure in 1 Billion Field Hours) For Most Components Advanced In-process Testing Ultra-low Loss Fused Components Pigtail Length: 0.5 to 4 m No Connector Choice of Housings Dimensions: Ø3.0 x 50 to 85 mm Applications: Subsea Equipment; Terminal Equipment; Space; Defense and Avionic; Fiber Lasers; Erbium-doped Fiber Amplifiers (EDFAs); Raman Amplifiers; Coherent Optical Communications; Instrumentation; Harsh Environment; Satellite Laser Communications; Satellite On-board Optical Processing
Product number: SW11344
Manufacturer: