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POS-002 Polarization Tracker

Product information "POS-002 Polarization Tracker"

1060, 1310, 1550 nm; IL <1.2, <0.1 dB; SOP Recovery Time 0.9 ms; Tracking Speed 47 π/s; SOP Accuracy <0.1 dB; RL >50 dB

Lunas’ POS-002 polarization tracker automatically adjusts the state of polarization (SOP) towards a reference SOP, counteracting continuous input SOP variations as fast as 0.9 ms with no resets.

The reference SOP is determined by a feedback signal which can be provided either internally or externally. The internal feedback version (POS-002-I) consists of a fiber squeezer polarization controller, in-line polarization monitor, digital and analog circuits, and proprietary algorithm. The error signal from the polarization monitor is fed back to the polarization controller to maintain a linear SOP at the output. The output fiber for POS-002-I is typically polarization maintaining (PM) fiber with the SOP aligned to its slow axis.

The external feedback version (POS-002-E) replaces the internal polarization monitor with an external analog electrical feedback signal of the user’s choice, such as a voltage proportional to the degree of polarization (DOP) measured by a polarimeter, the bit-error rate (BER) from a BER chip, the RF spectrum of a detected signal, or the optical power after a polarizer. The output fiber is typically single mode (SM) fiber.

Key Features:

  • Reset-free Operation
  • State of Polarization (SOP) Recovery Time: <3 ms, 0.9 ms Typical
  • SOP Rotation Tracking Speed: 47 π/s
  • "Plug and Play" Integration
  • Operating Wavelength Range: 1060 ±50 nm, 1310 ±50 nm, or 1550 ±50 nm
  • SOP Accuracy: <0.1 dB
  • Repeatability: <0.1 dB
  • Insertion Loss (IL, Internal Feedback): <1.2 dB, 0.8 dB Typical
  • Insertion Loss (IL, External Feedback): <0.1 dBReturn Loss (RL): >50 dB
  • Isolation in Orthogonal Polarization: 20 dB
  • Optical Power Handling: <20 dBm
  • Communications Interface: RS-232
  • Dimensions: 19.1 x 98 x 184 mm

Applications: PMD Compensation; Polarization Division Demultiplexing; Elimination of Polarization Fading in Coherent Detection and Fiber Sensor Systems; Suppression of Noise Figure in Optical Amplifiers; Reduction of PDL Effects

Information on the manufacturer (information obligations under the GPSR Product Safety Regulation)
Luna Innovations, Inc.
301 1st Street SW, Suite 200
VA 24011 Roanoke, United States
Manufacturer "Luna"
Headquartered in Roanoke, VA, USA, Luna develops, manufactures and markets high-definition fiber optic sensing products and fiber optic test and measurement instrumentation . Luna's products are used to measure, monitor, protect and improve critical processes in the healthcare, telecommunications, energy and defense markets. Luna has become a recognized leader in transitioning science to solutions. Luna’s high-definition fiber optic sensing technology allows engineers to test, modify and qualify their designs; efficiently, effectively, and accurately. The HYPERION series of fiber optic sensing interrogators provide many of the advantages of fiber optic systems and distinguishes itself by virtue of high spatial resolution. On the test and measurement side, Luna provides diagnostic and test instrumentation that enables the complete characterization of optical components, assemblies and short-haul networks; providing substantial cost and time savings in the development, production, and maintenance of optical network equipment. Optical backscatter reflectometers (OBR series) enable ultra-high resolution reflectometry with backscatter level sensitivity, while lightwave component and optical vector analyzers extend Luna’s industry-leading optical frequency domain reflectometry (OFDR) platform to manufacturing test and quality control applications for passive optical components.
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3 or 4 Control Channels; 1250-1650 nm, Other; Insertion Loss 0.05 dB; Polarization Dependent Loss <0.06 dB; Fiber Type SM, OtherOZ Optics' EPC-3000 high-speed electrically driven polarization controller provides a simple, efficient means to quickly manipulate the state of polarization within a single mode (SM) fiber. Employing a novel fiber squeezing technique, the device is controlled by either three or four (depending on the model) input voltages to provide endless polarization control and scrambling in a robust, easy to operate package. The EPC-3000 controller's rapid response speed easily handles changes in polarization caused by the external environment and is highly suitable for polarization controlling and scrambling for either averaging PDL, PDG effects, or for making PMD, PDL or DOP measurements. Because the fiber within the device is continuous, all insertion losses, return losses, and PDL effects are limited only by the fiber itself. This makes the EPC-3000 ideal for precise test and measurement applications. The polarization controller is available in either a three or four channel configuration. The three-channel system is ideal for polarization scrambling applications such as for polarization averaging, PDL or PDG measurements. The added redundancy of the four-channel version opens the way to continuous polarization control, without having to occasionally reset the device when a controller reaches its limit. The innovative design of the OZ Optics EPC-3000 high-speed polarization controller provides an integrated module that allows users easily to implement the polarization controller in their systems with both analog and digital inputs. Key Features: Negligible Insertion Loss: 0.05 dB (Excluding Connectors) Negligible Return Loss Negligible Polarization Dependent Loss (PDL) Continuous Polarization Control Capability Compact and PCB Compatible Up to 2 kHz Response Speed and 30 kHz at Resonance Frequency Number of Control Channels: 3, 4 Voltage Range: 0 V to 140 V Typ. Input Capacitance (Each Channel): 0.2 μF -3dB Bandwidth: >30 kHz Electrical Interface: 8-Pin Board Connector Wavelength Range: 1260 nm to 1650 nm Standard, Other Wavelengths Available on Request - Min. Retardation Range: 2π Back Reflection: >60 dB (Excluding connectors) Activation Loss: ±0.05 dB Polarization Dependent Loss (PDL) <0.06 dB Operating Temperature: -10°C to +50°C Fiber Type: Standard 9/125 μm Single Mode Fiber, Other Fiber Types Available on Request Dimensions: 83 mm x 19 mm x 16.5 mm Applications: Polarization Scrambling; Polarization Stabilization; Polarization Mode Dispersion (PMD) Mitigation; Polarization Dependent Loss (PDL) Mitigation; Polarization Dependent Gain (PDG) Mitigation; PDL, DOP, and PMD Measurement Systems; Interferometers and Sensors; Fiber Lasers; Polarization Demultiplexing; Test Instrumentation
Product number: SW11920
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