Abstract

The performance of monolithic 4 × 4 couplers is calculated as a function of arbitrary input polarization. By assuming polarization-independent diagonal coupling, an analytic result is obtained that is shown to agree with experiment. The effects of polarization-dependent diagonal coupling are calculated numerically. The measured polarization dependence of 4 × 4 fused fiber couplers is presented as a function of the degree of fusion of the fibers and is shown to be ±0.5% for a medium fused device.

© 1991 Optical Society of America

Incident polarization angle and temperature dependence of polarization and spectral response characteristics in optical fiber couplers

Yoshinori Namihira, Toshio Kawazawa, and Hiroharu Wakabayashi
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Theory and fabrication of 4 × 4 single-mode fused optical fiber couplers

David B. Mortimore
Appl. Opt. 29(3) 371-374 (1990)

Monolithic wavelength-flattened 1 × 7 single-mode fused fiber couplers: theory, fabrication, and analysis

David B. Mortimore and John W. Arkwright
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Modified Gaussian approach for the design of optical fiber couplers of arbitrary core shapes

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Appl. Opt. 30(18) 2533-2545 (1991)

Coupling model for fused fiber couplers with parabolic taper shape

William K. Burns and M. Abebe
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