Influence of asymmetric nonlinear gain on the transient intensities of longitudinal modes in long wavelength Fabry-Perot laser diodes

Shouichi Ogita, Arthur J. Lowery, Rodney S. Tucker

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22 Citations (Scopus)


The intensity transients of the longitudinal modes in a modulated 1.3-μm Fabry-Perot laser diode are analyzed theoretically and experimentally. A simulation of the transient spectra, based on a 21-mode rate-equation model, shows that nonlinear gain strongly affects the intensities of longitudinal modes during transients. The simulation results are confirmed by time-resolved spectrum measurements. From a comparison of measurements and the simulations, the self- and cross-saturation coefficients are estimated. Our simulations also show that the transient spectrum strongly depends on the bit interval during digital modulation.

Original languageEnglish
Pages (from-to)198-210
Number of pages13
JournalIEEE Journal of Quantum Electronics
Issue number2
Publication statusPublished - 1 Feb 1997
Externally publishedYes


  • Nonlinear optics
  • Optical communication
  • Optical modulation/demodulation
  • Semiconductor lasers
  • Simulation
  • Time-domain analysis

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