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A simple angular alignment technique for a polarization-maintaining-fiber

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2 Author(s)
Caponio, N. ; Centro Studi e Lab. Telecommun., CSELT, Torino, Italy ; Svelto, C.

Simple and accurate techniques for angular alignment of a polarization-maintaining-fiber (PMF) to a linearly polarized input beam are required for many optical-fiber applications. We consider an alignment technique wherein a short length of PMF undergoes a large temperature excursion and the output beam from the fiber is simply monitored by a linear polarizer and a power meter. Upon carefully considering the results for rotation angles near alignment, an accuracy better than 0.2/spl deg/ as well as a measurement of the fiber crosstalk are obtained.<>

Published in:

Photonics Technology Letters, IEEE  (Volume:6 ,  Issue: 6 )