Abstract
We report the highest power narrow spectrum 1180 nm distributed Bragg reflector (DBR) laser diodes prepared using GaInNAs quantum wells as a gain material. In particular, we demonstrate a CW output power up to 560 mW from Ridge Waveguide (RWG)-DBR laser diodes and up to 2.75W for Tapered DBR-LDs. The demonstration targets applications in second harmonic generation (SHG) for generating high brightness yellow radiation. RWG-DBR LDs are optimal light sources for waveguide SHG-crystals allowing high efficiency coupling to single mode WG embedded in the SHG-crystal. On the other hand, tapered DBR-LDs provide a power level that suitable for bulk SHG-crystals that can withstand more IR-light and alleviate the need for waveguide alignment. To reach the 1180 nm range we have developed high-quality GaInNAs quantum wells embedded in GaAs waveguide, a material system that has been in the past recognized for poor reliability in laser operation. In our case, preliminary lifetime test for GaInNAs RWG-DBR LDs showed no signs of degradation in a room-temperature operation for over 2000hours under high current driving at 1500 mA drive-current.
Original language | English |
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DOIs | |
Publication status | Published - 2017 |
Publication type | Not Eligible |
Event | CLEO/Europe-EQEC 2017 - Munich, Germany Duration: 25 Jun 2017 → 29 Jun 2017 |
Conference
Conference | CLEO/Europe-EQEC 2017 |
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Country/Territory | Germany |
City | Munich |
Period | 25/06/17 → 29/06/17 |
Keywords
- 1180nm
- 1178nm
- 1154nm
- DBR
- laser diode
- high power
- narrow linewidth
ASJC Scopus subject areas
- Physics and Astronomy (miscellaneous)