Highly reliable blue-violet inner stripe laser diodes using planar regrowth of AlGaN/GaN superlattice cladding layer
✍ Scribed by Fukuda, K. ;Kohmoto, S. ;Matsudate, M. ;Tsukuda, T. ;Yamada, M. ;Ohya, M. ;Naniwae, K. ;Akagawa, T. ;Masumoto, I. ;Sasaoka, C.
- Publisher
- John Wiley and Sons
- Year
- 2007
- Tongue
- English
- Weight
- 159 KB
- Volume
- 204
- Category
- Article
- ISSN
- 0031-8965
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✦ Synopsis
Abstract
We describe highly reliable operation of a novel planar inner stripe blue‐violet laser diode (BV‐LD). A planar regrowth technique makes it possible to simultaneously fabricate a low‐resistive superlattice (SL) structure both on the current‐injecting narrow stripe area and on the AlN current‐blocking layer. This allows for low operating voltage and over 1000 h stable operation at a single‐mode output power of 200 mW at 80 °C. The results obtained here clearly indicate that this inner stripe laser structure is a desirable candidate for a reliable high‐power light source for the next generation of optical disc systems. (© 2007 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)