Title :
Beam-Steering in Photonic Crystal Vertical Cavity Surface Emitting Laser Arrays
Author :
Lehman, Ann C. ; Raftery, James J., Jr. ; Choquette, Kent D.
Author_Institution :
Dept. of Electr. & Comput. Eng., Illinois Univ., Urbana, IL
Abstract :
In this paper, the control of the relative phase between elements of a coherent photonic crystal VCSEL array using independent current injection, which leads to electronic beam steering, is demonstrated. For controlled beam steering, we electrically isolate the two PhC defects by etching a thin trench by FIBE (focused ion beam etching). It is concluded that more than 3deg angular shift can be controllably obtained, demonstrating electronic beam-steering
Keywords :
beam steering; crystal defects; focused ion beam technology; photonic crystals; semiconductor laser arrays; sputter etching; surface emitting lasers; VCSEL array; crystal defects; electronic beam-steering; focused ion beam etching; independent current injection; laser arrays; photonic crystal laser; relative phase control; vertical cavity surface emitting laser; Beam steering; Etching; Ion beams; Optical arrays; Optical control; Phased arrays; Photonic crystals; Semiconductor laser arrays; Surface emitting lasers; Vertical cavity surface emitting lasers;
Conference_Titel :
Semiconductor Laser Conference, 2006. Conference Digest. 2006 IEEE 20th International
Conference_Location :
Kohala Coast, HI
Print_ISBN :
0-7803-9560-3
DOI :
10.1109/ISLC.2006.1708094
