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6 October 1986 Progress Towards A Low Phase Noise Source For Fibre Optic Sensors
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Proceedings Volume 0630, Fibre Optics '86; (1986)
Event: Sira/Fibre Optics '86, 1986, London, United Kingdom
The paper describes a technique for minimising the retro-reflections from pulsed-reflectometric optical fibre sensors which may return into a single mode semiconductor laser source. The reported system is pulsed using a Bragg cell, whose drive signal is adjusted to ensure that it does not diffract when light returns from the sensor thereby preventing re-entry into the laser. Using this technique, together with feedback control of the laser drive current, spectral purity and low phase noise of the source can be maintained.
© (1986) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
J. P. Dakin and P. B. Withers "Progress Towards A Low Phase Noise Source For Fibre Optic Sensors", Proc. SPIE 0630, Fibre Optics '86, (6 October 1986);

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