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

The intensity transients of the longitudinal modes in a modulated 1.3-/spl mu/m 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 longitud...

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Bibliographic Details
Published in:IEEE journal of quantum electronics 1997-02, Vol.33 (2), p.198-210
Main Authors: Ogita, S., Lowery, A.J., Tucker, R.S.
Format: Article
Language:English
Subjects:
Diode lasers
Exact sciences and technology
Fundamental areas of phenomenology (including applications)
Laboratories
Laser modes
Laser noise
Laser theory
Lasers
Nonlinear optics
Optical modulation
Optics
Physics
Semiconductor lasers
Semiconductor lasers
laser diodes
Transient analysis
Wavelength measurement
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Summary:The intensity transients of the longitudinal modes in a modulated 1.3-/spl mu/m 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.
ISSN:0018-9197
1558-1713
DOI:10.1109/3.552260