Multi-wavelength laser based on filtered-feedback

J. Zhao, P.J. Williams, M.K. Smit, X.J.M. Leijtens

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We present a novel multi-wavelength laser based on on-chip filtered optical feedback. The monolithically integrated device consists of four Fabry-Perot (FP) lasers that are wavelength-locked by an on-chip filtered-feedback section. The FP mirrors are formed by two on-chip multimode interference (MMI) reflectors, and the feedback section contains four phase shifters and a reflective arrayed waveguide grating to provide the filtered-feedback. By controlling the current injection to the lasers, single mode operation in each channel can be achieved. In this paper the design, fabrication and the first measurement are presented.
Original languageEnglish
Title of host publicationProceedings of the 16th Annual symposium of the IEEE Photonics Benelux Chapter, 01-02 December 2011, Ghent, Belgium
EditorsP. Bienstman, G. Morthier, G. Roelkens, xx et al.
Place of PublicationGhent, Belgium
PublisherUniversiteit Gent
ISBN (Print)978-90-85784-67-8
Publication statusPublished - 2011


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