InGaP/InGaAlP double-heterostructure and multiquantum-well laser diodes grown by molecular-beam epitaxy
Room-temperature continuous-wave (cw) operation is achieved in the MBE (molecular-beam epitaxy)-grown InGaP/InGaAlP double-heterostructure (DH) visible laser diodes with a threshold current of 110 mA. The lasing wavelength and threshold current density under pulsed operation are 666 nm and as low as 3.9 kA/cm/sup 2/, respectively. This result is achieved by the introduction of H/sub 2/ into the growth chamber during growth, the continuous growth from one layer to the next layer, and the introduction of a GaAs buffer layer. InGaP/InGaAlP quantum well structures are also grown. From photoluminescence measurements, the conduction-band discontinuity ..delta..E/sub c/ is estimated to be 0.43 of the band-gap difference ..delta..E/sub g/. Furthermore, the multiquantum-well (MQW) structure is found to be stable under thermal treatment at temperatures as high as 750 /sup 0/C. Room-temperature pulsed operation of InGaP/InGaAlP MQW laser diodes is achieved for the first time. The lasing wavelength is 658 nm with a threshold current density of 7.6 kA/cm/sup 2/. cw operation is also achieved in the MQW laser diodes at -125 /sup 0/C.
- Research Organization:
- NTT Electrical Communications Laboratories, Atsugi, Kanagawa 243-01, Japan
- OSTI ID:
- 6868300
- Journal Information:
- J. Appl. Phys.; (United States), Vol. 61:5
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
ALUMINIUM PHOSPHIDES
ENERGY GAP
GALLIUM PHOSPHIDES
INDIUM PHOSPHIDES
SEMICONDUCTOR LASERS
FABRICATION
OPERATION
CURRENT DENSITY
EXPERIMENTAL DATA
FREQUENCY SELECTION
HETEROJUNCTIONS
MEDIUM TEMPERATURE
MOLECULAR BEAM EPITAXY
PHOTOLUMINESCENCE
THRESHOLD CURRENT
ALUMINIUM COMPOUNDS
CURRENTS
DATA
ELECTRIC CURRENTS
EPITAXY
GALLIUM COMPOUNDS
INDIUM COMPOUNDS
INFORMATION
JUNCTIONS
LASERS
LUMINESCENCE
NUMERICAL DATA
PHOSPHIDES
PHOSPHORUS COMPOUNDS
PNICTIDES
SEMICONDUCTOR DEVICES
SEMICONDUCTOR JUNCTIONS
420300* - Engineering- Lasers- (-1989)