Title :
Harnessing Multimode Broad-Area Laser-Diode Emission Into a Single-Lobe Diffraction- Limited Spot
Author :
Stelmakh, Nikolai
Author_Institution :
Texas Univ., Arlington
Abstract :
A spectrally resolved phase manipulation technique external to the laser cavity is used to reshape the multimode emission of a conventional broad-area laser diode into a diffraction-limited single-lobe spot. A mode conversion efficiency of 60% with a total insertion loss of 25% has been demonstrated with conventional optical elements and a binary phase mask.
Keywords :
laser modes; light diffraction; semiconductor lasers; binary phase mask; laser cavity; mode conversion efficiency; multimode broad-area laser-diode emission; multimode emission; optical elements; phase manipulation technique; single-lobe diffraction-limited spot; Boundary conditions; Diode lasers; Laser beams; Laser modes; Lenses; Optical coupling; Optical diffraction; Optical losses; Semiconductor lasers; Stimulated emission; Optical beam shaping; semiconductor lasers;
Journal_Title :
Photonics Technology Letters, IEEE
DOI :
10.1109/LPT.2007.902927
