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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 16, Iss. 14 — Jul. 7, 2008
  • pp: 10091–10097

Evidence of ultra low microwave additive phase noise for an optical RF link based on a class-A semiconductor laser.

Ghaya Baili, Mehdi Alouini, Thierry Malherbe, Daniel Dolfi, Jean-Pierre Huignard, Thomas Merlet, Jean Chazelas, Isabelle Sagnes, and Fabien Bretenaker  »View Author Affiliations

Optics Express, Vol. 16, Issue 14, pp. 10091-10097 (2008)

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The additive RF phase noise of a microwave photonics link is measured using, as the optical source, a semiconductor laser operating in the class-A regime. The relative intensity noise of this laser being below the shot noise relative level, the phase noise floor of the link is shown to be shot noise limited, −152 dBc/Hz in our experimental conditions. As a result, the phase noise floor evolves as the inverse of the detected photocurrent, pushing the limits of performance to the availability of high power photo-detectors. Below 6 kHz from the carrier frequency at 3GHz, some noise, in excess with respect to the shot noise limit, is observed but remains lower than −110 dBc/Hz at 100 Hz offset frequency. This residual noise originates mainly from environmental noise and can be reduced by isolating the laser from acoustic/electromagnetic perturbations.

© 2008 Optical Society of America

OCIS Codes
(060.2360) Fiber optics and optical communications : Fiber optics links and subsystems
(120.5050) Instrumentation, measurement, and metrology : Phase measurement
(140.5960) Lasers and laser optics : Semiconductor lasers
(270.2500) Quantum optics : Fluctuations, relaxations, and noise
(350.4010) Other areas of optics : Microwaves
(060.5625) Fiber optics and optical communications : Radio frequency photonics

ToC Category:
Lasers and Laser Optics

Original Manuscript: April 1, 2008
Revised Manuscript: May 18, 2008
Manuscript Accepted: June 16, 2008
Published: June 23, 2008

Ghaya Baili, Mehdi Alouini, Thierry Malherbe, Daniel Dolfi, Jean-Pierre Huignard, Thomas Merlet, Jean Chazelas, Isabelle Sagnes, and Fabien Bretenaker, "Evidence of ultra low microwave additive phase noise for an optical RF link based on a class-A semiconductor laser," Opt. Express 16, 10091-10097 (2008)

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