High-power visible GaAlAs lasers with self-aligned strip buried heterostructure

Tsukuru Ohtoshi*, Toshihiro Kawano, Yoshimitsu Sasaki, Takashi Kajimura, Naoki Chinone, Michiharu Nakamura

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

10 Citations (Scopus)


Transverse-mode-stabilized GaAlAs high-power visible lasers have been developed in such a way as to have a self-aligned strip buried heterostructure. Analysis of their waveguide properties shows that asymmetric AlAs composition in cladding layers, as well as a thin active layer, are important for increasing optical spot size and stabilizing the transverse mode. Lasers with such a waveguide structure operate in the fundamental transverse mode up to an output power as high as 30 mW, and at a lasing wavelength of around 780 nm under cw operation. In addition, fundamental transverse mode operation up to 75 mW under cw conditions has been achieved with optimization of facet reflectivities.

Original languageEnglish
Pages (from-to)2491-2496
Number of pages6
JournalJournal of Applied Physics
Issue number9
Publication statusPublished - 1984 Dec 1
Externally publishedYes

ASJC Scopus subject areas

  • Physics and Astronomy(all)


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