Over 1000 mW single mode operation of planar inner stripe blue-violet laser diodes

✍ Scribed by Sasaoka, C. ;Fukuda, K. ;Ohya, M. ;Shiba, K. ;Sumino, M. ;Kohmoto, S. ;Naniwae, K. ;Matsudate, M. ;Mizuki, E. ;Masumoto, I. ;Kobayashi, R. ;Kudo, K. ;Sasaki, T. ;Nishi, K.

• Publisher: John Wiley and Sons
• Year: 2006
• Tongue: English
• Weight: 207 KB
• Volume: 203
• Category: Article
• ISSN: 0031-8965
• DOI: 10.1002/pssa.200565237

✦ Synopsis

Abstract

We report the 1000 mW single mode operation of a planar blue‐violet laser diode with inner stripe waveguide. Kink‐free output surpassed 400 mW (CW) and 600 mW (50 ns pulsed, duty 50%) at temperatures up to 90 °C. Precise optical field design for narrow stripe waveguide as well as damage‐free stripe formation was a key to achieving watt class output. By utilizing buried AlN as optical and current confinement layers, a damage‐free inner stripe as narrow as 1.0 μm wide was successfully fabricated. Planar inner stripe structure also has the advantage of a small increase in the electrical resistance for such a narrow stripe, which is favorable for high power operations. The results here indicate the potential of this planar blue‐violet laser diode for high power applications as the next generation of optical disc systems. (© 2006 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)