Title :
In-phase antiguided bottom-emitting vertical cavity laser arrays
Author :
Johnson, Matthew Thomas ; Siriani, Dominic Francis ; Leisher, Paul O. ; Choquette, Kent D.
Author_Institution :
Dept. of Electr. & Comput. Eng., Univ. of Illinois, Urbana, IL, USA
Abstract :
In-phase emission from a bottom-emitting, coherently coupled, vertical cavity surface-emitting laser array is demonstrated for the first time. Various array geometries are examined. An antiguided index profile is used to obtain the preferred on-axis far-field peak from a 2 × 1 array up to 0.9 mW, representing a critical step towards coherent, high-brightness two-dimensional laser arrays.
Keywords :
laser arrays; surface emitting lasers; antiguided index profile; antiguided vertical cavity laser array; bottom emitting vertical cavity laser array; coherently coupled vertical cavity surface emitting laser array; in-phase emission; in-phase vertical cavity laser array; on-axis far field peak;
Journal_Title :
Electronics Letters
DOI :
10.1049/el.2013.1867
