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Proceedings Paper

Towards a low noise class-A hybrid III-V/silicon laser
Author(s): 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
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Paper 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.

Paper Details

Date Published: 1 May 2014
PDF: 7 pages
Proc. SPIE 9133, Silicon Photonics and Photonic Integrated Circuits IV, 91331B (1 May 2014); doi: 10.1117/12.2052295
Show Author Affiliations
Nils Girard, Thales Research & Technology (France)
Ghaya Baili, Thales Research & Technology (France)
Pascale Nouchi, Thales Research & Technology (France)
Daniel Dolfi, Thales Research & Technology (France)
Alban Le Liepvre, III-V Lab, Thales Research and Technology, CEA-LETI (France)
Alain Accard, III-V Lab, Thales Research and Technology, CEA-LETI (France)
Peter Kaspar, III-V Lab, Thales Research and Technology, CEA-LETI (France)
Dalila Make, III-V Lab, Thales Research and Technology, CEA-LETI (France)
Philippe Charbonnier, III-V Lab, Thales Research and Technology, CEA-LETI (France)
Franck Mallecot, III-V Lab, Thales Research and Technology, CEA-LETI (France)
Mickael Faugeron, III-V Lab, Thales Research and Technology, CEA-LETI (France)
Frederic Van Dijk, III-V Lab, Thales Research and Technology, CEA-LETI (France)
Guang-Hua Duan, III-V Lab, Thales Research and Technology, CEA-LETI (France)
Ségolène Olivier, CEA-LETI (France)
Stephan Malhouitre, CEA-LETI (France)
Christophe Kopp, CEA-LETI (France)


Published in SPIE Proceedings Vol. 9133:
Silicon Photonics and Photonic Integrated Circuits IV
Laurent Vivien; Seppo Honkanen; Lorenzo Pavesi; Stefano Pelli; Jung Hun Shin, Editor(s)

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