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Proceedings Paper

Performance Analysis Of Polarization Maintaining Fiber Directional Coupler
Author(s): E. Shafir; A. Hardy; M. Tur
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Paper Abstract

Commercial tunable polarization maintaining fiber couplers exhibit inadequate low polarization isolations. Utilizing a newly developed coupled mode theory, we theoretically analyze the performance of these devices, and conclude that these low values can be explained in terms of finite misalignments of few degrees between the two fibers' principal birefringent axes. We also show that for a given device with 3dB coupling ratio the polarization isolation critically depends on the transverse setting, and can vary between 18 and 40dB for the case of 5° misalignment, in a coupler composed of 3mm beatlength fibers.

Paper Details

Date Published: 5 July 1989
PDF: 9 pages
Proc. SPIE 1038, 6th Mtg in Israel on Optical Engineering, (5 July 1989); doi: 10.1117/12.951073
Show Author Affiliations
E. Shafir, Soreq Nuclear Research Center (Israel)
A. Hardy, Tel-Aviv University (Israel)
M. Tur, Tel-Aviv University (Israel)

Published in SPIE Proceedings Vol. 1038:
6th Mtg in Israel on Optical Engineering
Rami Finkler; Joseph Shamir, Editor(s)

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