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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 15, Iss. 21 — Oct. 17, 2007
  • pp: 14155–14162

Coherence collapse and low-frequency fluctuations in quantum-dash based lasers emitting at 1.57 μm

S. Azouigui, B. Kelleher, S. P. Hegarty, G. Huyet, B. Dagens, F. Lelarge, A. Accard, D. Make, O. Le Gouezigou, K. Merghem, A. Martinez, Q. Zou, and A. Ramdane  »View Author Affiliations


Optics Express, Vol. 15, Issue 21, pp. 14155-14162 (2007)
http://dx.doi.org/10.1364/OE.15.014155


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Abstract

Optical feedback tolerance is experimentally investigated on a 600-μm-long quantum-dash based Fabry-Pérot laser emitting at 1.57μm. While quantum-dashes are structurally intermediate to quantum-wells and quantum-dots, the observed behaviour is distinctly like that of a quantum-well based laser but with greater stability. Coherence collapse and low-frequency fluctuation regimes are observed and are reported here. The onset of the coherence collapse regime is experimentally determined and is found to vary from -29 dB to -21 dB external feedback level when increasing the current from twice to nine times the threshold current.

© 2007 Optical Society of America

OCIS Codes
(140.0140) Lasers and laser optics : Lasers and laser optics
(140.5960) Lasers and laser optics : Semiconductor lasers
(250.0250) Optoelectronics : Optoelectronics

ToC Category:
Lasers and Laser Optics

History
Original Manuscript: July 13, 2007
Revised Manuscript: September 11, 2007
Manuscript Accepted: September 13, 2007
Published: October 12, 2007

Citation
S. Azouigui, B. Kelleher, S. P. Hegarty, G. Huyet, B. Dagens, F. Lelarge, A. Accard, D. Make, O. Le Gouezigou, K. Merghem, A. Martinez, Q. Zou, and A. Ramdane, "Coherence collapse and low-frequency fluctuations in quantum-dash based lasers emitting at 1.57 μm," Opt. Express 15, 14155-14162 (2007)
http://www.opticsinfobase.org/oe/abstract.cfm?URI=oe-15-21-14155


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