Title :
Improved performance of semiconductor ring lasers with multi-mode interference output couplers
Author :
Krauss, T. ; Laybourn, P.J.R. ; DeLaRue, R.M.
Author_Institution :
Dept. of Electron. & Electr. Eng., Glasgow Univ., UK
Abstract :
We present strip-loaded ring lasers in GaAs/AlGaAs that operate with a threshold current of 140 mA for a total pumped device length of 4.5 mm and a quantum efficiency of 7% (per output), to our knowledge the highest efficiency for such lasers reported to date
Keywords :
III-V semiconductors; aluminium compounds; gallium arsenide; laser modes; optical couplers; ring lasers; semiconductor lasers; 140 mA; 4.5 mm; 7 percent; GaAs-AlGaAs; GaAs/AlGaAs; multi-mode interference output couplers; quantum efficiency; semiconductor ring lasers; strip-loaded ring lasers; threshold current; Couplers; Interference; Laser feedback; Laser mode locking; Laser modes; Laser transitions; Optical coupling; Ring lasers; Semiconductor lasers; Waveguide lasers;
Conference_Titel :
Semiconductor Laser Conference, 1994., 14th IEEE International
Conference_Location :
Maui, HI
Print_ISBN :
0-7803-1754-8
DOI :
10.1109/ISLC.1994.519147
