Difference frequency modulation of multi-section dual-mode lasers with nanoscale surface gratings

Topi Uusitalo; Heikki Virtanen; Jukka Viheriälä; Joel Salmi; Antti T. Aho; Mihail Dumitrescu

doi:10.1117/12.2213888

7 March 2016 Difference frequency modulation of multi-section dual-mode lasers with nanoscale surface gratings

Topi Uusitalo, Heikki Virtanen, Jukka Viheriälä, Joel Salmi, Antti T. Aho, Mihail Dumitrescu

Proceedings Volume 9767, Novel In-Plane Semiconductor Lasers XV; 97670S (2016) https://doi.org/10.1117/12.2213888
Event: SPIE OPTO, 2016, San Francisco, California, United States

Abstract

Dual-mode multi-section quantum-well distributed feedback lasers with surface gratings have been fabricated, without regrowth, at 1310 and 1550 nm using UV nano-imprint lithography. Several laser and grating sections have been employed to control and stabilize the dual-mode emission and to reduce mode competition. Frequency differences between 15 GHz and 1 THz were achieved for different longitudinal structures. Frequency difference variations of several GHz have been measured under bias modulation with rates up to a few GHz. Higher frequency difference modulation rates are expected from improved measurement setups and from employing quantum dot active regions for further reduction of mode competition.

Citation Download Citation

Topi Uusitalo, Heikki Virtanen, Jukka Viheriälä, Joel Salmi, Antti T. Aho, and Mihail Dumitrescu "Difference frequency modulation of multi-section dual-mode lasers with nanoscale surface gratings", Proc. SPIE 9767, Novel In-Plane Semiconductor Lasers XV, 97670S (7 March 2016); https://doi.org/10.1117/12.2213888

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