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Optics Letters

Optics Letters


  • Editor: Alan E. Willner
  • Vol. 34, Iss. 5 — Mar. 1, 2009
  • pp: 554–556

Transient chirp in high-speed photonic-crystal quantum-dot lasers with controlled spontaneous emission

R. Braive, S. Barbay, I. Sagnes, A. Miard, I. Robert-Philip, and A. Beveratos  »View Author Affiliations

Optics Letters, Vol. 34, Issue 5, pp. 554-556 (2009)

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We report on a series of experiments on the dynamics of spontaneous emission controlled nanolasers. The laser cavity is a photonic-crystal slab cavity, embedding self-assembled quantum dots as gain material. The implementation of cavity electrodynamics effects increases the large signal modulation bandwidth significantly, with measured modulation speeds of the order of 10 GHz while keeping an extinction ratio of 19 dB . A linear transient wavelength shift is reported, corresponding to a chirp of less than 100 pm for a 35 ps laser pulse. We observe that the chirp characteristics are independent of the repetition rate of the laser up to 10 GHz .

© 2009 Optical Society of America

OCIS Codes
(140.5960) Lasers and laser optics : Semiconductor lasers
(270.5580) Quantum optics : Quantum electrodynamics
(140.3948) Lasers and laser optics : Microcavity devices
(350.4238) Other areas of optics : Nanophotonics and photonic crystals
(250.5590) Optoelectronics : Quantum-well, -wire and -dot devices

ToC Category:
Lasers and Laser Optics

Original Manuscript: October 21, 2008
Revised Manuscript: December 15, 2008
Manuscript Accepted: December 16, 2008
Published: February 19, 2009

R. Braive, S. Barbay, I. Sagnes, A. Miard, I. Robert-Philip, and A. Beveratos, "Transient chirp in high-speed photonic-crystal quantum-dot lasers with controlled spontaneous emission," Opt. Lett. 34, 554-556 (2009)

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