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Optica Publishing Group
  • Conference on Lasers and Electro-Optics
  • OSA Technical Digest (Optica Publishing Group, 1991),
  • paper CThF4

Genuine optical frequency discriminator with wide recovery range and high gain for FM noise reduction of semiconductor lasers

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Abstract

Highly coherent semiconductor lasers are indispensable for accurate coherent optical systems, and a field spectral linewidth as narrow as 7 Hz has been achieved by employing negative electrical feedback (NEF) technique.1 Because using genuine optical frequency discriminators (OFD) have not existed, the slope of the resonance spectral shape of a super Fabry-Perot interferometer (FPI) has been tentatively used in the NEF experiment. However, demand is growing for a high quality OFD for use in a computer- aided channel selection scheme of frequency division multiplexing coherent optical communcations2, and for a very long-baseline interferometer for gravitational wave detection.

© 1991 Optical Society of America

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