Noise properties of semiconductor ring lasers

Antonio Pérez S.; Roberta Zambrini; Alessandro Scirè; Pere Colet

doi:10.1117/12.780985

19 May 2008 Noise properties of semiconductor ring lasers

Antonio Pérez S., Roberta Zambrini, Alessandro Scirè, Pere Colet

Proceedings Volume 6997, Semiconductor Lasers and Laser Dynamics III; 69971Q (2008) https://doi.org/10.1117/12.780985
Event: SPIE Photonics Europe, 2008, Strasbourg, France

Abstract

We analyze a rate equation model in the Langevin formulation for the two modes of the electric field and the carrier density, modelling the spontaneous emission noise in a semiconductor ring laser biased in the bidirectional regime. We analytically investigate the influence of complex backscattering coefficient when the two modes are reinterpreted in terms of mode-intensity sum (I-Spectrum) and difference (D-spectrum). The D-spectrum represents the energy exchange between the two counterpropagating modes and it is shaped by the noisy precursor of a Hopf bifurcation influenced mainly by the conservative backscattering. The I-Spectrum reflects the energy exchange between the total field and the medium and behaves similarly to the standard relative intensity noise for single-mode semiconductor lasers. Good agreement between analytical approximation and numerical results is found.

Citation Download Citation

Antonio Pérez S., Roberta Zambrini, Alessandro Scirè, and Pere Colet "Noise properties of semiconductor ring lasers", Proc. SPIE 6997, Semiconductor Lasers and Laser Dynamics III, 69971Q (19 May 2008); https://doi.org/10.1117/12.780985

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