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Proceedings Paper

Polarization alignment of polarization maintaining fiber using coherent detection
Author(s): Roman C. Gutierrez
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Paper Abstract

A new method of polarization alignment into PM fiber based on electronic coherent detection is presented. The electric field resulting from interference between the polarization eigenmodes of a PM fiber at a linear polarizer when the light coupled into the fiber is amplitude modulated is solved for. The results of polarization alignment experiments using a current modulated laser diode are compared with the theory. Even though current modulation of a laser diode produces a complicated electric field, it is shown that the measurements made in the experiments agree well with the simple model. The new method is used to align the input to a PM fiber coupler with a polarization extinction ratio (PER) of 25 dB (limited by coupler crosstalk) and to align into a 1 km long PM fiber with a PER of 20 dB (limited by fiber crosstalk).

Paper Details

Date Published: 14 September 1994
PDF: 14 pages
Proc. SPIE 2265, Polarization Analysis and Measurement II, (14 September 1994); doi: 10.1117/12.186672
Show Author Affiliations
Roman C. Gutierrez, Jet Propulsion Lab. (United States)

Published in SPIE Proceedings Vol. 2265:
Polarization Analysis and Measurement II
Dennis H. Goldstein; David B. Chenault, Editor(s)

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