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arXiv · 1309.2880

Stabilized fiber-optic Mach-Zehnder interferometer for carrier-frequency rejection

Nathan Cooper·Jonathan Woods·James Bateman·Alexander Dunning·Tim Freegarde
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Abstract

We have demonstrated stabilization of a fiber-optic Mach-Zehnder interferometer, with a centimeter-scale path difference, to the transmission minimum for the carrier wave of a frequency-modulated laser beam. A time-averaged extinction of 32 dB, limited by the bandwidth of the feedback, was maintained over several hours. The interferometer was used to remove the carrier wave from a 780 nm laser beam that had been phase modulated at 2.7 GHz.

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Nathan Cooper, Jonathan Woods, James Bateman, Alexander Dunning, Tim Freegarde. 2013-09-11. Stabilized fiber-optic Mach-Zehnder interferometer for carrier-frequency rejection. https://doi.org/10.1364/ao.52.005713

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