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Optics Letters

Optics Letters

| RAPID, SHORT PUBLICATIONS ON THE LATEST IN OPTICAL DISCOVERIES

  • Editor: Alan E. Willner
  • Vol. 37, Iss. 23 — Dec. 1, 2012
  • pp: 4967–4969

Terahertz-bandwidth coherence measurements of a quantum dash laser in passive and active mode-locking operation

Eamonn Martin, Regan Watts, Laurent Bramerie, Alexandre Shen, Harry Gariah, Fabrice Blache, Francois Lelarge, and Liam Barry  »View Author Affiliations


Optics Letters, Vol. 37, Issue 23, pp. 4967-4969 (2012)
http://dx.doi.org/10.1364/OL.37.004967


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Abstract

This research carries out coherence measurements of a 42.7 GHz quantum dash (QDash) semiconductor laser when passively, electrically, and optically mode-locked. Coherence of the spectral lines from the mode-locked laser is determined by examining the radio frequency beat-tone linewidth as the mode spacing is increased up to 1.1 THz. Electric-field measurements of the QDash laser are also presented, from which a comparison between experimental results and accepted theory for coherence in passively mode-locked lasers has been performed.

© 2012 Optical Society of America

OCIS Codes
(140.5960) Lasers and laser optics : Semiconductor lasers
(190.4380) Nonlinear optics : Nonlinear optics, four-wave mixing

ToC Category:
Lasers and Laser Optics

History
Original Manuscript: September 13, 2012
Revised Manuscript: October 19, 2012
Manuscript Accepted: November 5, 2012
Published: November 29, 2012

Citation
Eamonn Martin, Regan Watts, Laurent Bramerie, Alexandre Shen, Harry Gariah, Fabrice Blache, Francois Lelarge, and Liam Barry, "Terahertz-bandwidth coherence measurements of a quantum dash laser in passive and active mode-locking operation," Opt. Lett. 37, 4967-4969 (2012)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-37-23-4967

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