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Highly reliable blue‐violet inner stripe laser diodes using planar regrowth of AlGaN/GaN superlattice cladding layer
Author(s) -
Fukuda K.,
Kohmoto S.,
Matsudate M.,
Tsukuda T.,
Yamada M.,
Ohya M.,
Naniwae K.,
Akagawa T.,
Masumoto I.,
Sasaoka C.
Publication year - 2007
Publication title -
physica status solidi (a)
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.532
H-Index - 104
eISSN - 1862-6319
pISSN - 1862-6300
DOI - 10.1002/pssa.200674823
Subject(s) - materials science , cladding (metalworking) , optoelectronics , superlattice , planar , diode , blue laser , laser , layer (electronics) , optics , composite material , computer science , computer graphics (images) , physics
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)