Towards a low noise class-A hybrid III-V/silicon laser

Nils Girard; Ghaya Baili; Pascale Nouchi; Daniel Dolfi; Alban Le Liepvre; Alain Accard; Peter Kaspar; Dalila Make; Philippe Charbonnier; Franck Mallecot; Mickael Faugeron; Frederic Van Dijk; Guang-Hua Duan; Ségolène Olivier; Stephan Malhouitre; Christophe Kopp

doi:10.1117/12.2052295

1 May 2014 Towards a low noise class-A hybrid III-V/silicon laser

Nils Girard, Ghaya Baili, Pascale Nouchi, Daniel Dolfi, Alban Le Liepvre, Alain Accard, Peter Kaspar, Dalila Make, Philippe Charbonnier, Franck Mallecot, Mickael Faugeron, Frederic Van Dijk, Guang-Hua Duan, Ségolène Olivier, Stephan Malhouitre, Christophe Kopp

Author Affiliations +

Proceedings Volume 9133, Silicon Photonics and Photonic Integrated Circuits IV; 91331B (2014) https://doi.org/10.1117/12.2052295
Event: SPIE Photonics Europe, 2014, Brussels, Belgium

Abstract

We describe a hybrid III-V on Silicon laser designed for low noise class-A dynamics. The laser is based on an InP active region and a passive silicon region integrated in a long laser cavity. High-Q ring resonators are used as optical filters in order to achieve single frequency operation. A fiber-coupled output power of 4.6 mW and a 55 dB side mode suppression ratio are obtained. For a pumping rate of 5.2, the hybrid laser exhibits a Relative Intensity Noise below -145 dB/Hz over a wide frequency bandwidth, from 100 MHz to 40 GHz but still suffers from some noise excess due to relaxation oscillations phenomena and side modes noise. The optimization of the laser cavity design is discussed in order to reach class-A dynamics while reducing residual noise excess.

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Nils Girard, Ghaya Baili, Pascale Nouchi, Daniel Dolfi, Alban Le Liepvre, Alain Accard, Peter Kaspar, Dalila Make, Philippe Charbonnier, Franck Mallecot, Mickael Faugeron, Frederic Van Dijk, Guang-Hua Duan, Ségolène Olivier, Stephan Malhouitre, and Christophe Kopp "Towards a low noise class-A hybrid III-V/silicon laser", Proc. SPIE 9133, Silicon Photonics and Photonic Integrated Circuits IV, 91331B (1 May 2014); https://doi.org/10.1117/12.2052295

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