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Optics Letters

Optics Letters


  • Editor: Alan E. Willner
  • Vol. 38, Iss. 11 — Jun. 1, 2013
  • pp: 1975–1977

Modulation properties of optically injection-locked quantum cascade lasers

Cheng Wang, Fédéric Grillot, Vassilios I. Kovanis, Joshua D. Bodyfelt, and Jacky Even  »View Author Affiliations

Optics Letters, Vol. 38, Issue 11, pp. 1975-1977 (2013)

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A rate equation analysis on the modulation response of an optical injection-locked quantum cascade laser is outlined. It is found that the bifurcation diagram exhibits both bistable and unstable locked regions. In addition, the stable locked regime widens as the linewidth enhancement factor increases. It is also shown that both positive and negative optical detunings as well as strong injection strength enhance the 3 dB modulation bandwidth by as much as 30 GHz. Finally, the peak in the modulation response is significantly influenced by the optical frequency detuning.

© 2013 Optical Society of America

OCIS Codes
(140.3520) Lasers and laser optics : Lasers, injection-locked
(140.5960) Lasers and laser optics : Semiconductor lasers
(140.3518) Lasers and laser optics : Lasers, frequency modulated
(140.5965) Lasers and laser optics : Semiconductor lasers, quantum cascade

ToC Category:
Lasers and Laser Optics

Original Manuscript: March 28, 2013
Revised Manuscript: May 1, 2013
Manuscript Accepted: May 3, 2013
Published: May 30, 2013

Cheng Wang, Fédéric Grillot, Vassilios I. Kovanis, Joshua D. Bodyfelt, and Jacky Even, "Modulation properties of optically injection-locked quantum cascade lasers," Opt. Lett. 38, 1975-1977 (2013)

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