Title :
Grating-coupled GaAs-GaAlAs lasers with distributed Bragg reflectors
Author :
Uematsu, Y. ; Yamamoto, M. ; Unno, Y.
Author_Institution :
Toshiba Corporation, Research & Development Center, Kawasaki, Japan
Abstract :
Grating-coupled GaAs-GaAIAs lasers with 4th-order distributed Bragg reflectors have been successfully demonstrated with high efficiencies. The threshold current density, lasing spectrum and grating-coupled output power have been measured at room temperature. The output power from the grating at 1.5 Jth and its differential quantum efficiency have been measured to be 13.5 mW and 1.1%, respectively.
Keywords :
distributed Bragg reflector lasers; semiconductor junction lasers; differential quantum efficiency; distributed Bragg reflectors; grating coupled GaAs-GaAlAs lasers; lasing spectrum; output power; threshold current density;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19770536
