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Optics Letters

Optics Letters


  • Editor: Xi-Cheng Zhang
  • Vol. 39, Iss. 14 — Jul. 15, 2014
  • pp: 4239–4242

GHz bandwidth noise eater hybrid optical amplifier: design guidelines

Gwennaël Danion, François Bondu, Goulc’hen Loas, and Mehdi Alouini  »View Author Affiliations

Optics Letters, Vol. 39, Issue 14, pp. 4239-4242 (2014)

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This Letter describes the design of an optical amplifier system optimized to reduce the relative intensity noise (RIN) of the input signal, and discloses its performance in terms of intensity noise reduction and bandwidth, without phase noise degradation. This polarization-maintaining amplifier is composed of an erbium-doped fiber amplifier (EDFA) cascaded with a semiconductor optical amplifier (SOA). The EDFA is sized to feed the SOA with a constant power corresponding to the optimal saturation level for noise reduction, through coherent population oscillations. When properly optimized, such an amplifier provides, simultaneously, 17 dB optical gain, 5.4 dB noise factor, and 20 dB reduction of the input-RIN across a 3 GHz bandwidth, without any electronics feedback loop.

© 2014 Optical Society of America

OCIS Codes
(120.4570) Instrumentation, measurement, and metrology : Optical design of instruments
(140.4480) Lasers and laser optics : Optical amplifiers
(250.5980) Optoelectronics : Semiconductor optical amplifiers
(270.1670) Quantum optics : Coherent optical effects

ToC Category:
Lasers and Laser Optics

Original Manuscript: February 27, 2014
Revised Manuscript: June 12, 2014
Manuscript Accepted: June 12, 2014
Published: July 15, 2014

Gwennaël Danion, François Bondu, Goulc’hen Loas, and Mehdi Alouini, "GHz bandwidth noise eater hybrid optical amplifier: design guidelines," Opt. Lett. 39, 4239-4242 (2014)

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