Title :
Design of a doubly grooved binary metallic diffraction grating For efficient side-pumping of high-power fiber lasers
Author :
Zhang, Fan ; Wang, Chuncan ; Tong, Zhi ; Rui, Geng ; Tigang, Ning
Author_Institution :
Beijing Jiaotong Univ., Beijing
Abstract :
A metallic binary grating with two grooves per period is applied to side-pump high-power fiber lasers for the first time. By combining a gradient algorithm and micro-genetic algorithm, the grating is optimized and the maximum coupling efficiencies of 94.77% and 77.27% for TM and TE polarization waves respectively are demonstrated.
Keywords :
diffraction gratings; fibre lasers; genetic algorithms; gradient methods; optical design techniques; optical pumping; binary metallic diffraction grating design; coupling efficiency; fiber lasers; gradient algorithm; microgenetic algorithm; polarization; side pumping; Diffraction gratings; Electromagnetic diffraction; Fiber gratings; Fiber lasers; Gold; High power fiber lasers; Laser excitation; Optical design; Optical fiber polarization; Optical reflection;
Conference_Titel :
Optical Fiber Communication and Optoelectronics Conference, 2007 Asia
Conference_Location :
Shanghai
Print_ISBN :
978-0-9789217-2-9
Electronic_ISBN :
978-0-9789217-2-9
DOI :
10.1109/AOE.2007.4410834
