Title :
Top spatial filter Bragg waveguide VCSEL
Author :
Greally, M.G. ; Steer, M.J. ; Frost, J.E.F. ; Woodhead, J. ; Roberts, J.S. ; Adams, M.J.
Author_Institution :
Dept. of Phys., Essex Univ., Colchester, UK
Abstract :
We have designed and fabricated a novel VCSEL device which incorporates a cylindrical Bragg waveguide (BW) across the VCSEL. A cylindrical Bragg waveguide is composed of a series of concentric annuli of alternating high and low refractive indices surrounding a central core. The first prototype of this VCSEL performs as a single mode device with a waveguide core diameter of 20 /spl mu/m.
Keywords :
infrared sources; laser modes; laser transitions; quantum well lasers; spatial filters; surface emitting lasers; waveguide lasers; 3.5 mum; 860 nm; VCSEL device design; VCSEL device optical fabrication; alternating high/low refractive indices; concentric annuli; cylindrical Bragg waveguide; single mode device; top spatial filter Bragg waveguide VCSEL; waveguide core diameter; Apertures; Design methodology; Distributed Bragg reflectors; Etching; Frequency conversion; Gallium arsenide; Gold; Prototypes; Spatial filters; Vertical cavity surface emitting lasers;
Conference_Titel :
Semiconductor Laser Conference, 1998. ISLC 1998 NARA. 1998 IEEE 16th International
Conference_Location :
Nara, Japan
Print_ISBN :
0-7803-4223-2
DOI :
10.1109/ISLC.1998.734166
