Narrow-linewidth hybrid-integrated semiconductor lasers by exploiting feedback from Si3N4 circuits

Albert van Rees; Youwen Fan; Jesse Mak; Rob E. M. Lammerink; Cornelis A. A. Franken; Ruud M. Oldenbeuving; Dimitri Geskus; Jörn P. Epping; Marcel Hoekman; Ronald Dekker; Edwin J. Klein; Douwe H. Geuzebroek; Chris G. H. Roeloffzen; Carsten Fallnich; Peter J. M. van der Slot; Klaus-Jochen Boller

doi:10.1117/12.2583821

5 March 2021 Narrow-linewidth hybrid-integrated semiconductor lasers by exploiting feedback from Si₃N₄ circuits

Albert van Rees, Youwen Fan, Jesse Mak, Rob E. M. Lammerink, Cornelis A. A. Franken, Ruud M. Oldenbeuving, Dimitri Geskus, Jörn P. Epping, Marcel Hoekman, Ronald Dekker, Edwin J. Klein, Douwe H. Geuzebroek, Chris G. H. Roeloffzen, Carsten Fallnich, Peter J. M. van der Slot, Klaus-Jochen Boller

Author Affiliations +

Proceedings Volume 11692, Optical Interconnects XXI; 1169209 (2021) https://doi.org/10.1117/12.2583821
Event: SPIE OPTO, 2021, Online Only

Abstract

Hybrid integration of semiconductor optical amplifiers with frequency-selective feedback circuits, implemented using low-loss Si3N4 waveguides, enables robust chip-sized lasers with outstanding properties. Deploying ring resonators as a tunable feedback filter provides single-mode operation over a wide wavelength range. Moreover, these rings resonantly enhance the cavity length, which results in ultra-narrow intrinsic linewidth, as low as 40 Hz. Here, we present an overview on state-of-the-art developments regarding these lasers. We compare linewidth and tuning results for different feedback circuit configurations. Finally, we report on the first demonstration of a hybrid-integrated semiconductor laser that operates in the visible wavelength range.

Conference Presentation

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Albert van Rees, Youwen Fan, Jesse Mak, Rob E. M. Lammerink, Cornelis A. A. Franken, Ruud M. Oldenbeuving, Dimitri Geskus, Jörn P. Epping, Marcel Hoekman, Ronald Dekker, Edwin J. Klein, Douwe H. Geuzebroek, Chris G. H. Roeloffzen, Carsten Fallnich, Peter J. M. van der Slot, and Klaus-Jochen Boller "Narrow-linewidth hybrid-integrated semiconductor lasers by exploiting feedback from Si₃N₄ circuits", Proc. SPIE 11692, Optical Interconnects XXI, 1169209 (5 March 2021); https://doi.org/10.1117/12.2583821

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