DEP Depolarizer

Product number: SW11294

Manufacturer: Luna

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DEP Depolarizer General Photonics Datasheet

Product information "DEP Depolarizer"

1310, 1550 nm; IL 1.0 dB; DOP <5%; ER <0.5 dB; RL 55 dB

General Photonics’ DEP depolarizer module is a passive device (requiring no external power) that depolarizes laser output. The standard configuration can be used for coherence lengths less than 10 m. Custom units can be specified for coherence lengths of multiple kilometers.

The DEP polarizer is ideal for minimizing the polarization sensitivity of fiber optic sensor systems such as systems for quasi-distributed temperature and strain sensing based on fiber Bragg gratings (FBG), systems for distributed temperature and strain sensing based on Brillouin or Raman scattering and systems for distributed acoustic sensing based on Rayleigh scattering. It can also help to eliminate the effects of PDL or polarization sensitivity of optical components and instruments. Equally important, it can be used for depolarizing pump lasers to eliminate the polarization sensitivity of Raman amplifiers.

The DEP polarizer is packaged in a small (85 × 60 × 10 mm), rugged aluminium box, providing high performance and superb environmental stability. The internal structure and package size may be different depending on the coherence length or spectral width of the light signal to be depolarized. Contact AMS Technologies for an optimized configuration for your intended applications.

Key Features:

Customizable for Light Sources With Different Coherence Lengths
Low Output Degree of Polarization (DOP): <5%
Center Operating Wavelength: 1310, 1550 nm
Wide Operating Wavelength Range: ±50 nm
Low Insertion Loss: 1.0 dB Typical, 1.4 dB Maximum
Compact Size: 85 × 60 × 10, 85 x 85 x 15 mm, Larger Package for Coherence Length >200 m
No Power Source Required
Coherence Length of Light Source: 10 m Standard, Others Specify
Residual Extinction Ratio (ER): <0.5 dB
Return Loss: 55 dB
Optical Power Handling: ≥300 mW
Fiber Type Input: PM Panda Fiber
Fiber Type Output: SMF-28

Applications: Minimize Polarization Sensitivity of Fiber Sensors; Depolarize Pump Lasers; Remove Polarization Sensitivity of Raman Amplifiers; Eliminate Polarization Sensitivity of Optical Instruments; Eliminate the Effects of PDL; Can Be Integrated Into Remote Monitors

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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