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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 17, Iss. 10 — May. 11, 2009
  • pp: 7790–7799

Enhanced modulation bandwidth of nanocavity light emitting devices

Erwin K. Lau, Amit Lakhani, Rodney S. Tucker, and Ming C. Wu  »View Author Affiliations

Optics Express, Vol. 17, Issue 10, pp. 7790-7799 (2009)

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We show that the direct modulation bandwidth of nano-cavity light emitting devices (nLEDs) can greatly exceed that of any laser. By performing a detailed analysis, we show that the modulation bandwidth can be increased by the Purcell effect, but that this enhancement occurs only when the device is biased below the lasing threshold. The maximum bandwidth is shown to be inversely proportional to the square root of the modal volume, with sub-wavelength cavities necessary to exceed conventional laser speeds.

© 2009 Optical Society of America

OCIS Codes
(060.4080) Fiber optics and optical communications : Modulation
(140.5960) Lasers and laser optics : Semiconductor lasers
(320.7090) Ultrafast optics : Ultrafast lasers
(140.3948) Lasers and laser optics : Microcavity devices

ToC Category:
Lasers and Laser Optics

Original Manuscript: March 13, 2009
Revised Manuscript: April 14, 2009
Manuscript Accepted: April 19, 2009
Published: April 27, 2009

Erwin K. Lau, Amit Lakhani, Rodney S. Tucker, and Ming C. Wu, "Enhanced modulation bandwidth of nanocavity light emitting devices," Opt. Express 17, 7790-7799 (2009)

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