Title :
Phase tuning in coherently coupled VCSEL array
Author :
Johnson, Matthew T. ; Siriani, Dominic F. ; Choquette, Kent D.
Author_Institution :
Dept. of Electr. & Comput. Eng., Univ. of Illinois, Urbana, IL, USA
Abstract :
This paper reports on the measurement of the relative phase in coherently-coupled in-phase VCSEL arrays and show that the phase can be varied by differential current injection over a full range of π, requiring <; 200 μA, which is several orders of magnitude lower than phase tuning by similar methods in slab-coupled lasers.
Keywords :
laser tuning; semiconductor laser arrays; surface emitting lasers; coherently-coupled in-phase VCSEL arrays; differential current injection; phase tuning; relative phase measurement; semiconductor lasers; slab-coupled lasers; Apertures; Arrays; Coherence; Current measurement; Photonic crystals; Tuning; Vertical cavity surface emitting lasers;
Conference_Titel :
Semiconductor Laser Conference (ISLC), 2012 23rd IEEE International
Conference_Location :
San Diego, CA
Print_ISBN :
978-1-4577-0828-2
DOI :
10.1109/ISLC.2012.6348381
