Title :
Two-dimensional electronic beam-steering with implant-defined coherent VCSEL arrays
Author :
Lehman, A.C. ; Siriani, D.F. ; Choquette, K.D.
Author_Institution :
Univ. of Illinois at Urbana-Champaign, Urbana
Abstract :
Evanescently-coupled two-dimensional vertical cavity surface emitting laser arrays may be defined by proton implantation in the top mirror. By controlling injection current to each of the elements in these laser arrays, the main lobe of emission can be steered in different directions up to 5deg from normal. This two-dimensional electronic beam-steering with a three-element triangular array is demonstrated.
Keywords :
beam steering; ion implantation; semiconductor laser arrays; surface emitting lasers; 2D electronic beam-steering; 2D vertical cavity surface emitting laser arrays; VCSEL arrays; injection current; proton implantation; three-element triangular array; top mirror;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:20071762
