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Reduction of residual excess noise in class-A lasers using two-photon absorption

Kevin Audo 1 Abdelkrim El Amili 1 G. Baïli 2 D. Dolfi 2 Mehdi Alouini 1
1 IPR - Institut de Physique de Rennes
2 Thales Research and Technology [Palaiseau]
Abstract : We demonstrate experimentally a significant reduction of the remaining excess intensity noise in a class-A semiconductor laser. This is obtained by inserting into the laser cavity a buffer reservoir mechanism based on two-photon absorption in GaAs. The excess noise peaks at the laser-free spectral range, induced by the beating between the lasing mode and the amplified spontaneous emission in the adjacent non-oscillating modes, is reduced by 20 dB, while preserving the class-A dynamical behavior of the laser cavity. © 2016 Optical Society of America.
Keywords : Laser resonators Photons Semiconductor lasers Amplified spontaneous emissions Dynamical behaviors Excess intensity noise Free spectral range Lasing modes Mechanism-based Oscillating modes Two photon absorption Two photon processes
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https://hal-univ-rennes1.archives-ouvertes.fr/hal-01380705
Contributor : Laurent Jonchère <>
Submitted on : Thursday, October 13, 2016 - 1:32:17 PM
Last modification on : Tuesday, January 12, 2021 - 4:44:13 PM

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UNIV-RENNES1 | IPR | CNRS | IPR-OP | UR1-UFR-SPM | OSUR | UNIV-RENNES

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Kevin Audo, Abdelkrim El Amili, G. Baïli, D. Dolfi, Mehdi Alouini. Reduction of residual excess noise in class-A lasers using two-photon absorption. Optics Letters, Optical Society of America - OSA Publishing, 2016, 41, pp.4237--4240. ⟨10.1364/OL.41.004237⟩. ⟨hal-01380705⟩

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