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Proceedings Paper

PANDA-based in-fiber linear polarizers
Author(s): Sheng Zhang; Victor I. Kopp; Victor Churikov; Guoyin Zhang
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Paper Abstract

We demonstrate two types of in-fiber linear polarizers based on PANDA PM fibers with < 0.7 dB insertion loss, > 30 dB extinction ratio, and > 40 dB return loss. The first is a chiral fiber, realized by twisting an etched and tapered PANDA fiber. A form birefringence of 10-2 is achieved in the noncircular fiber produced by differentially etching the pure silica cladding and the doped silica stress members. The chiral grating scatters one polarization component out of the fiber over a broad band while the orthogonal polarization component propagates freely. The second polarizer is produced in an untwisted tapered PANDA fiber. Polarization selectivity is the result of opposite modal interferometric oscillation of two orthogonal polarization components. Both types of in-fiber polarizer are all-glass, scattering, and non-absorbing devices without back-reflection and are therefore suitable for high-power applications.

Paper Details

Date Published: 6 February 2009
PDF: 8 pages
Proc. SPIE 7212, Optical Components and Materials VI, 72120D (6 February 2009); doi: 10.1117/12.808261
Show Author Affiliations
Sheng Zhang, Chiral Photonics, Inc. (United States)
Victor I. Kopp, Chiral Photonics, Inc. (United States)
Victor Churikov, Chiral Photonics, Inc. (United States)
Guoyin Zhang, Chiral Photonics, Inc. (United States)

Published in SPIE Proceedings Vol. 7212:
Optical Components and Materials VI
Shibin Jiang; Michel J. F. Digonnet; John W. Glesener; J. Christopher Dries, Editor(s)

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