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Optics Express

Optics Express

  • Editor: Michael Duncan
  • Vol. 13, Iss. 6 — Mar. 21, 2005
  • pp: 2032–2039

Intensity noise properties of quantum cascade lasers

Tobias Gensty, Wolfgang Elsäßer, and Christian Mann  »View Author Affiliations

Optics Express, Vol. 13, Issue 6, pp. 2032-2039 (2005)

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We present investigations of the the relative intensity noise (RIN) of a quantum cascade laser (QC) laser in continuous wave operation. We analyze the intensity noise properties in terms of the relative intensity noise (RIN). In contrast to conventional interband semiconductor diode lasers we obtain a different scaling behavior of RIN with increasing optical output power for QC lasers. From a semiclassical noise model we find that this result is due to the cascaded active regions each incorporating three laser levels, and is therefore a particular feature of QC lasers.

© 2005 Optical Society of America

OCIS Codes
(140.3070) Lasers and laser optics : Infrared and far-infrared lasers
(140.5960) Lasers and laser optics : Semiconductor lasers
(270.2500) Quantum optics : Fluctuations, relaxations, and noise

ToC Category:
Research Papers

Original Manuscript: January 11, 2005
Revised Manuscript: March 3, 2005
Published: March 21, 2005

Tobias Gensty, Wolfgang Els�er, and Christian Mann, "Intensity noise properties of quantum cascade lasers," Opt. Express 13, 2032-2039 (2005)

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