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Optica Publishing Group
  • Conference on Lasers and Electro-Optics
  • OSA Technical Digest (Optica Publishing Group, 1989),
  • paper TUD4

Novel frequency control scheme for a 1.56-µm DFB laser using an internal second harmonic and an atomic rubidium line

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Abstract

Frequency stabilization of 1.5-µm semiconductor lasers is important for coherent optical communication systems. Such stabilizations have been carried out by using gaseous organic molecules (NH3, H2O, etc.) as frequency references.1 However, their low absorption coefficients and the difficulty of spectral assignments limit the sensitivity of frequency discrimination and frequency reproducibility.

© 1989 Optical Society of America

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