Title :
Brightness improvement for micro-lensed, laser diode bar stacks
Author :
Monjardin, J.F. ; Nowak, K.M. ; Holdsworth, A.R. ; Baker, H.J. ; Hall, D.R.
Author_Institution :
Sch. of Eng. & Phys. Sci., Heriot-Watt Univ., Edinburgh, UK
Abstract :
The poor beam quality of multibar laser diodes currently limits the effectiveness of the associated beam shaping and coupling optics used for fibre or solid-state laser pumping, fibre optic beam delivery and for direct use of the diode light in material processing. Here we report a new technique which uses custom-made correction optics to provide a major improvement in beam pointing accuracy and beam quality for multibar diode stacks fitted with integral fast axis lenses.
Keywords :
brightness; fibre lasers; laser beams; microlenses; optical materials; optical pumping; semiconductor lasers; beam pointing accuracy; beam quality; brightness; coupling optics; fibre laser pumping; fibre optic beam delivery; integral fast axis lens; laser beam shaping; laser diode bar stack; material processing; microlens; multibar laser diode; solid-state laser pumping; Brightness; Diode lasers; Fiber optics; Laser beams; Laser excitation; Optical beams; Optical coupling; Optical fibers; Optical pumping; Solid lasers;
Conference_Titel :
Lasers and Electro-Optics Europe, 2003. CLEO/Europe. 2003 Conference on
Print_ISBN :
0-7803-7734-6
DOI :
10.1109/CLEOE.2003.1312212
