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Optics Express

Optics Express

  • Editor: Andrew M. Weiner
  • Vol. 21, Iss. 18 — Sep. 9, 2013
  • pp: 21242–21253

Four-wave mixing analysis on injection-locked quantum dot semiconductor lasers

Chih-Hao Lin and Fan-Yi Lin  »View Author Affiliations

Optics Express, Vol. 21, Issue 18, pp. 21242-21253 (2013)

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We derive a simplified rate equation model for the four-wave mixing (FWM) analysis on quantum dot (QD) semiconductor lasers subject to optical injection. The regenerative and the amplitude modulation spectra of the FWM signals with different intrinsic laser parameters and external injection conditions are investigated. By curve fitting the regenerative and the amplitude modulation spectra obtained experimentally, the intrinsic parameters of a commercial single-mode QD laser under different injection conditions are extracted. The linewidth enhancement factor α at different injection levels and detunings are shown, where a reduction of up to 39% from its free-running value is demonstrated. By increasing the injection strength, the α can be further reduced to minimized the chirp in optical communications.

© 2013 OSA

OCIS Codes
(140.3520) Lasers and laser optics : Lasers, injection-locked
(140.5960) Lasers and laser optics : Semiconductor lasers
(190.4380) Nonlinear optics : Nonlinear optics, four-wave mixing
(230.5590) Optical devices : Quantum-well, -wire and -dot devices
(290.3700) Scattering : Linewidth

ToC Category:
Lasers and Laser Optics

Original Manuscript: July 8, 2013
Revised Manuscript: August 23, 2013
Manuscript Accepted: August 25, 2013
Published: September 3, 2013

Chih-Hao Lin and Fan-Yi Lin, "Four-wave mixing analysis on injection-locked quantum dot semiconductor lasers," Opt. Express 21, 21242-21253 (2013)

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