Title :
Multimode interference coupled array laser
Author :
Bryce, A.C. ; Murad, M.K. ; Loyo-Maldonado, V.
Author_Institution :
Dept. of Electron. & Electr. Eng., Univ. of Glasgow, Glasgow, UK
Abstract :
The authors have successfully demonstrated 1×4 MMI array laser diode which is locked in phase achieving power in excess of 400 mW from a single mode output waveguide with slope efficiency of 20 % per facet. Far field measured at FWHM being 16.1° at 418 mW and remained single lobed as the drive current was increased. This is an improvement over using single ridge waveguide by a factor of three when the same active length is used.
Keywords :
interference; ridge waveguides; semiconductor laser arrays; MMI array laser diode; coupled array laser; drive current; multimode interference; ridge waveguide; Etching; Gold; Interference; Laser modes; Optical arrays; Optical coupling; Optical waveguides; Pump lasers; Semiconductor laser arrays; Waveguide lasers;
Conference_Titel :
High Power Diode Lasers and Systems Conference, 2009. HPD 2009
Conference_Location :
Coventry
Print_ISBN :
978-1-4244-5545-4
Electronic_ISBN :
978-1-4244-5546-1
DOI :
10.1109/HPD.2009.5363286
