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Optics Express

Optics Express

  • Editor: Andrew M. Weiner
  • Vol. 22, Iss. 6 — Mar. 24, 2014
  • pp: 6919–6924

Saturated gain spectrum of VECSELs determined by transient measurement of lasing onset

C. Robin Head, Keith G. Wilcox, Andrew P. Turnbull, Oliver J. Morris, Edward A. Shaw, and Anne C. Tropper  »View Author Affiliations

Optics Express, Vol. 22, Issue 6, pp. 6919-6924 (2014)

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We describe time-resolved measurements of the evolution of the spectrum of radiation emitted by an optically-pumped continuous-wave InGaAs-GaAs quantum well laser, recorded as lasing builds up from noise to steady state. We extract a fitting parameter corresponding to the gain dispersion of the parabolic spectrum equal to −79 ± 30 fs2 and −36 ± 6 fs2 for a resonant and anti-resonant structure, respectively. Furthermore the recorded evolution of the spectrum allows for the calculation of an effective FWHM gain bandwidth for each structure, of 11 nm and 18 nm, respectively.

© 2014 Optical Society of America

OCIS Codes
(140.3430) Lasers and laser optics : Laser theory
(140.7090) Lasers and laser optics : Ultrafast lasers
(140.7260) Lasers and laser optics : Vertical cavity surface emitting lasers

ToC Category:
Nonlinear Optics

Original Manuscript: January 10, 2014
Revised Manuscript: March 6, 2014
Manuscript Accepted: March 7, 2014
Published: March 18, 2014

Virtual Issues
Physics and Applications of Laser Dynamics (2014) Optics Express

C. Robin Head, Keith G. Wilcox, Andrew P. Turnbull, Oliver J. Morris, Edward A. Shaw, and Anne C. Tropper, "Saturated gain spectrum of VECSELs determined by transient measurement of lasing onset," Opt. Express 22, 6919-6924 (2014)

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  1. A. C. Tropper, A. H. Quartermann, and K. G. Wilcox, Advances in Semiconductor Lasers, (Academic Press, 2012), Chap. 7.
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  14. M. E. Barnes, Z. Mihoubi, K. G. Wilcox, A. H. Quarterman, I. Farrer, D. A. Ritchie, A. Garnache, S. Hoogland, V. Apostolopoulos, A. C. Tropper, “Gain bandwidth characterization of surface-emitting quantum well laser gain structures for femtosecond operation,” Opt. Express 18(20), 21330–21341 (2010). [CrossRef] [PubMed]
  15. C. R. Head, “Optical trapping and optical sources for nanophotonics,” Univ. of Southampton, Doctoral Thesis (2013). http://eprints.soton.ac.uk/359888/
  16. M. Kuznetsov, F. Hakimi, R. Sprague, A. Mooradian, “Design and characteristics of high-power (>0.5-W CW) diode-pumped vertical-external-cavity surface-emitting semiconductor lasers with circular TEM00 beams,” IEEE J. Sel. Top. Quantum Electron. 5(3), 561–573 (1999). [CrossRef]

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