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.
|Title of host publication||Proceedings of the 16th Annual symposium of the IEEE Photonics Benelux Chapter, 01-02 December 2011, Ghent, Belgium|
|Editors||P. Bienstman, G. Morthier, G. Roelkens, xx et al.|
|Place of Publication||Ghent, Belgium|
|Publication status||Published - 2011|
Zhao, J., Williams, P. J., Smit, M. K., & Leijtens, X. J. M. (2011). Multi-wavelength laser based on filtered-feedback. In P. Bienstman, G. Morthier, G. Roelkens, & X. et al. (Eds.), Proceedings of the 16th Annual symposium of the IEEE Photonics Benelux Chapter, 01-02 December 2011, Ghent, Belgium (pp. 49-52). Universiteit Gent.