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


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