Mode-hop free operation throughout lifetime confirmed in a 2um distributed Bragg reflector laser for gas sensing

M. Shimokozono; T. Kanai; N. Fujiwara; H. Ishii; Y. Ohiso; Y. Ueda; H. Matsuzaki

doi:10.1117/12.2511013

1 March 2019 Mode-hop free operation throughout lifetime confirmed in a 2μm distributed Bragg reflector laser for gas sensing

M. Shimokozono, T. Kanai, N. Fujiwara, H. Ishii, Y. Ohiso, Y. Ueda, H. Matsuzaki

Author Affiliations +

Proceedings Volume 10939, Novel In-Plane Semiconductor Lasers XVIII; 1093910 (2019) https://doi.org/10.1117/12.2511013
Event: SPIE OPTO, 2019, San Francisco, California, United States

Abstract

An InGaAs based distributed Bragg reflector (DBR) laser operating at 2 μm was fabricated and evaluated as a light source for real-time gas sensing for which mode-hop free operation throughout its lifetime is essential. We therefore performed an aging test to confirm mode-hop free operation. Current was injected into the active/SOA region and/or the DBR/phase control (PC) region at 85 °C. The changes in threshold current and wavelength were not significant after 5000 h of aging. As the wavelength shifts for DBR and PC current after aging are comparable, we confirmed mode-hop free operation of the laser throughout its lifetime as a gas-sensing light source.

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Citation Download Citation

M. Shimokozono, T. Kanai, N. Fujiwara, H. Ishii, Y. Ohiso, Y. Ueda, and H. Matsuzaki "Mode-hop free operation throughout lifetime confirmed in a 2μm distributed Bragg reflector laser for gas sensing", Proc. SPIE 10939, Novel In-Plane Semiconductor Lasers XVIII, 1093910 (1 March 2019); https://doi.org/10.1117/12.2511013

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