Polarization-Maintaining Fiber Birefringent Filter For WDM

C. S. Brown; J. F. Kuhl; M. A. El

doi:10.1117/12.959763

23 February 1989 Polarization-Maintaining Fiber Birefringent Filter For WDM

C. S. Brown, J. F. Kuhl, M. A. El

Proceedings Volume 0988, Components for Fiber Optic Applications III and Coherent Lightwave Communications; (1989) https://doi.org/10.1117/12.959763
Event: O-E/Fiber LASE '88, 1988, Boston, MA, United States

Abstract

A polarization maintaining single mode fiber birefringent filter which could function as a two channel, three port wavelength selective multiplexer/demultiplexer has been designed, constructed, characterized, and evaluated. A highly accurate and novel procedure was used to measure the wavelength dependence of the beat length of the AT&T rectangular PM fiber used in the prototype filter. In addition, a computer simulation of birefringent filters (based on a new first principle theory of polarized signals in birefringent media) was used as a design tool and found to be in excellent agreement with the spectral response of the prototype filter. The free spectral range of the prototype filter is 326 nm with pass/stop bands of 36 nm and 45 nm about the 1373.2 nm and 1533.3 nm wavelengths, respectively. The insertion loss, which was not optimized, was 4.3 dB. The crosstalk was -11.3 dB and -24.2 dB for the parallel and crossed orientations of the polarizers.

Citation Download Citation

C. S. Brown, J. F. Kuhl, and M. A. El "Polarization-Maintaining Fiber Birefringent Filter For WDM", Proc. SPIE 0988, Components for Fiber Optic Applications III and Coherent Lightwave Communications, (23 February 1989); https://doi.org/10.1117/12.959763

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KEYWORDS

Polarizers

Optical filters

Phase modulation

Polarization

Prototyping

Solids

Crystals

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