Polarisation-Insensitive Optical Fibre Phase Modulator

Darran Kreit; Robert C Youngquist; Ian P Giles

doi:10.1117/12.941138

14 October 1987 Polarisation-Insensitive Optical Fibre Phase Modulator

Darran Kreit, Robert C Youngquist, Ian P Giles

Proceedings Volume 0798, Fiber Optic Sensors II; (1987) https://doi.org/10.1117/12.941138
Event: Fourth International Symposium on Optical and Optoelectronic Applied Sciences and Engineering, 1987, The Hague, Netherlands

Abstract

An acoustic fibre phase modulator, operating up to a few MHz, is described which employs a piezoelectric plate in a squeezing action. A novel construction using two machined brass v-grooves results in a much reduced sensitivity to optical polarisation and the optimum groove angle is independent of the level of friction on the walls of each groove. A normalised birefringence of 0.04 was achieved at 1.5MHz, with a modulation efficiency of approximately 0.23 rad/Vrms., for a 2cm long device.

Citation Download Citation

Darran Kreit, Robert C Youngquist, and Ian P Giles "Polarisation-Insensitive Optical Fibre Phase Modulator", Proc. SPIE 0798, Fiber Optic Sensors II, (14 October 1987); https://doi.org/10.1117/12.941138

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