Title :
Beam Spoiler Simulations for High-Power Laser Diodes
Author :
Benson, Trevor M. ; Vukovic, Ana ; Thomas, David W P ; Christopoulos, Christos ; Wykes, James G. ; Greedy, Stephen C. ; Sewell, Phillip
Author_Institution :
George Green Inst. for Electromagn. Res., Nottingham Univ.
Abstract :
Beam spoilers are an integral part of high-power laser diode design, being used to provide improved output beam quality by spatially filtering higher order field components from the backward travelling wave. They consist of deeply etched angled trenches and this inherent three-dimensional nature is one reason why, despite their practical importance, no systematic design of beam spoilers has been undertaken. In this paper we compare and contrast simulation methods for this purpose, including beam propagation and TLM methods
Keywords :
laser beams; optical design techniques; semiconductor lasers; spatial filters; TLM methods; backward travelling wave; beam quality; beam spoiler simulation; high-power laser diodes; spatial filter; Diode lasers; Fiber lasers; Laser beams; Laser modes; Molecular beam epitaxial growth; Optical filters; Optical propagation; Optical reflection; Optical scattering; Pump lasers; Transmission Line Modelling; beam spoiler; electromagnetics simulation; high-power laser;
Conference_Titel :
Transparent Optical Networks, 2006 International Conference on
Conference_Location :
Nottingham
Print_ISBN :
1-4244-0235-2
Electronic_ISBN :
1-4244-0236-0
DOI :
10.1109/ICTON.2006.248366
