Title :
Coherence theory of VCSEL array coupling
Author :
Siriani, Dominic F. ; Carney, P. Scott ; Choquette, Kent D.
Author_Institution :
Dept. of Electr. & Comput. Eng., Univ. of Illinois at Urbana-Champaign, Urbana, IL
Abstract :
Vertical-cavity surface-emitting laser (VCSEL) arrays have been laterally coupled by a variety of methods. This laser coupling can be used to create electrically steerable arrays for communication applications as well as increased-power single-mode lasers. In this work, we describe evanescent coupling of implant-defined VCSEL arrays. Using a coupled-propagator coherence theory, the coupling mechanism and determinants of degree of coherence are examined and comparisons between the theory and fabricated devices are presented.
Keywords :
light coherence; surface emitting lasers; VCSEL array coupling; coherence degree; communication applications; coupled-propagator coherence theory; coupling mechanism; electrically steerable arrays; evanescent coupling; implant-defined VCSEL arrays; laser coupling; single-mode lasers; vertical-cavity surface-emitting laser arrays; Apertures; Coherence; Electron optics; Laser modes; Laser theory; Optical arrays; Optical coupling; Optical propagation; Surface emitting lasers; Vertical cavity surface emitting lasers;
Conference_Titel :
IEEE Lasers and Electro-Optics Society, 2008. LEOS 2008. 21st Annual Meeting of the
Conference_Location :
Acapulco
Print_ISBN :
978-1-4244-1931-9
Electronic_ISBN :
978-1-4244-1932-6
DOI :
10.1109/LEOS.2008.4688657
