TITLE

Low-threshold room-temperature cw operation of (AlGaAs)m(GaAs)n superlattice quantum well lasers emitting at ∼680 nm

AUTHOR(S)
Hayakawa, T.; Suyama, T.; Takahashi, K.; Kondo, M.; Yamamoto, S.; Hijikata, T.
PUB. DATE
September 1987
SOURCE
Applied Physics Letters;9/7/1987, Vol. 51 Issue 10, p707
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
Low cw threshold current of 45 mA and high differential quantum efficiency of 78% have been achieved at room temperature in an (Al0.6Ga0.4As)2(GaAs)2 superlattice quantum well laser emitting at 681 nm. The quantum well structure has been optimized to minimize the threshold current density at 680 nm. The new ridge-waveguide structure with a current-blocking supporting region is employed to reduce the thermal resistance.
ACCESSION #
9824070

 

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