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Conferences > CLEO > 1994 > CWH > CWH34
  • Conference on Lasers and Electro-Optics
  • OSA Technical Digest (Optica Publishing Group, 1994),
  • paper CWH34

Intensity and phase correlation method for measuring the linewidth enhancement factor of semiconductor lasers

Kenji Wada, Masahiro Kitamura, Yuichi Akage, and Yoshio Cho

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Abstract

The linewidth enhancement factor a is one of fundamental parameters of semiconductor lasers.1 Many methods for measuring the a-value have already been proposed and tested.2 The CHP (Chirp-Halfwidth Product) method3 is known as the method for measuring the a-value under the large- signal modulation condition. This method utilizing the time-bandwidth product of pulse is simple to carry out experiment, but there is a fear of occurrence of an over- or under-estimation on evaluated a-values due to the Gaussian pulse shape assumption included and so-called ‘rabbit ears’ seen in the spectrum.3

© 1994 Optical Society of America

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