High power operation of 980 nm GaInAs/GaInAsP/GaInP/GaAs pump lasers prepared by multi-step MOVPE growth with ion implanted channels High power operation of 980 nm GaInAs/GaInAsP/GaInP/GaAs pump lasers prepared by multi-step MOVPE growth with ion implanted channels

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The silicon (Si) or boron (B) implantation process in Ga(0.8)ln(0.2)As/GaxIn1-xAsyP1-y/Ga0.51In0.49P/GaAs quantum well structures can be used not only for maintaining single lateral mode during high power operation but also for increasing the catastrophic optical damage (COD) level of 980 nm pump lasers. The fabricated 980 nm pump lasers with partially ion implanted channels after ridge waveguide structure formation exhibited high power operation up to 250 mW without any kink and beam steering. A photoluminescence peak shift of 70 meV was obtained by 120 keV Si-implantation and annealing at 900 degrees C. Improvement of the COD level by a minimum of 1.65 times is obtained by forming transparent windows near facets by Si implantation and annealing. A highly nonradiative polycrystalline phase of the active area may be the major cause of COD failure in the Al-free 980 nm lasers.
Publisher
Japan Soc Applied Physics
Issue Date
1999-08
Language
English
Article Type
Article
Keywords

SEMICONDUCTOR-LASERS; DEGRADATION

Citation

JAPANESE JOURNAL OF APPLIED PHYSICS, v.38, no.8, pp.4756 - 4763

ISSN
0021-4922
URI
http://hdl.handle.net/10203/72879
Appears in Collection
EE-Journal Papers(저널논문)
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