Full company details
Evanescent Optics Inc.
3325 North Service Rd. Unit 109
Burlington, ON L7N 3G2
Canada
Phone: +1 905-336-2626
Fax: +1 905-336-5620
PM Variable Ratio Wave Coupler
Photonics Marketplace
Evanescent Optics Inc. offers low loss (<0.1dB), high isolation (<-25dB) PM fiber-optic couplers in both fixed ratio and variable models. Our small footprint couplers, splitter/combiners and other components can be configured as NxM port, splice free coupler arrays and as custom assemblies fabricated for high ER and low loss. Operating wavelengths of 488nm to 2um and custom pigtail lengths available.
Variable ratio couplers are made with optically contacted polished fibers mounted in substrate blocks that have transverse motion in the contact plane to adjust core-to-core separation distance. In the case of PM fiber, the orientation of the fast and slow axes is preserved during the motion. A negligibly thick oil layer is used to lubricate the substrate blocks and ensure smooth motion. Long term ratio stability is better than 1% under laboratory conditions.
Features:
• Precise Ratio Adjustment
• Low loss
• Low back reflection
• Low polarization cross talk
• Large operating bandwidth
• Polarization Maintaining (PM) or non-PM types
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