Role of hysteresis on the mode-shift characteristics of injection locking a laser diode

K. Nakkeeran, P. K. A. Wai, L. Xu, L. F. K. Lui, H. Y. Tam

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Using Lang's equation for the dynamics of injection locking of a laser diode, we show that the hysteresis property of the excess carrier density has direct influence on the mode-shift characteristics, which makes the shift of the slave laser mode to be different from the frequency detune of the external master laser signal within the locking range of the slave laser. The theoretical prediction is experimentally confirmed by the measurement of the mode-shift of an injection locked Fabry-Perot laser diode.

Original languageEnglish
Pages (from-to)15-22
Number of pages8
JournalJournal of Nonlinear Optical Physics and Materials
Issue number1
Publication statusPublished - Mar 2008


  • laser diode
  • injection locking
  • mode-shift
  • hysteresis
  • Fabry-Perot laser diode
  • locked semiconductor-lasers
  • state

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