Title :
Curved Waveguide Array Diode Lasers for High-Brightness Applications
Author :
Elarde, C. ; Tobin, K.E. ; Price, R.K. ; Verma, V.B. ; Coleman, J.J.
Author_Institution :
Dept. of Electr. & Comput. Eng., Illinois Univ., Urbana, IL
fDate :
7/1/2008 12:00:00 AM
Abstract :
We have developed a novel structure for achieving high-brightness output from a semiconductor laser array using coherent spatial beam combination. The structure consists of an array of curved ridge waveguides with in-phase, coherent output. Interference of the multiple outputs leads to a narrow, bright, on-axis, far-field beam shape. Experimental results demonstrate a diffraction limited output beam width, ideal for high-brightness applications.
Keywords :
brightness; ridge waveguides; semiconductor laser arrays; waveguide lasers; coherent spatial beam combination; curved ridge waveguides; diffraction limited output beam width; far-field beam shape; high-brightness output; semiconductor laser array; waveguide array diode lasers; Diode lasers; Interference; Laser beams; Optical arrays; Optical coupling; Optical waveguides; Phased arrays; Semiconductor laser arrays; Semiconductor waveguides; Waveguide lasers; Coherent array; high-brightness; semiconductor laser; spatial beam combination;
Journal_Title :
Photonics Technology Letters, IEEE
DOI :
10.1109/LPT.2008.924299
