Abstract
This study presents an automatic polarization compensation tracking
method to obtain and maintain maximum visibility of Mach-Zehnder interferometric
sensors using an active polarization controller. This method uses the 3-axes
fiber squeezer polarization controller (FSPC). In this tracking method, the
step voltage is the key parameter of the trade-off between recovery time and
visibility resolution. In the Mach-Zehnder interferometer experiments, the
average recovery time is 5.4 s and maximum visibility remains between 0.98
and 1, which shows the excellent performances of this tracking method. This
tracking method is suitable for compensating the polarization fading of two
independent interference path interferometric sensors.
© 2009 IEEE
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