Title :
Leaky mode vertical cavity lasers using cavity resonance modification
Author :
Choquette, K.D. ; Hadley, G.R. ; Hou, H.Q. ; Geib, K.M. ; Hammons, B.E.
Author_Institution :
Sandia Nat. Labs., Albuquerque, NM, USA
fDate :
5/14/1998 12:00:00 AM
Abstract :
Singlemode operation of selectively oxidised monolithic vertical cavity laser diodes is demonstrated using optical antiguiding induced by cavity resonance modifications. A higher refractive index surrounding the laser cavity is accomplished by increasing the optical cavity length in this region to form leaky-mode lasers. The monolithic antiguiding lasers are fabricated using an etch and regrowth process of the top semiconductor distributed Bragg reflector mirror. The leaky-mode vertical cavity lasers exhibit single transverse mode operation up to injection currents greater than 13 times the threshold current
Keywords :
etching; laser cavity resonators; laser modes; refractive index; semiconductor growth; semiconductor lasers; surface emitting lasers; vapour phase epitaxial growth; cavity resonance modification; distributed Bragg reflector mirror; etch process; injection currents; leaky mode vertical cavity lasers; optical antiguiding; optical cavity length; refractive index; regrowth process; single transverse mode operation; singlemode operation;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19980744
