Title :
Novel total-internal-reflection pump-signal coupler with >90% pump coupling efficiency from a broad-area diode laser into a double-clad fiber
Author :
Kaneda, Yushi ; Zong, Jie ; Romero, Oscar ; Deng, Ziping ; Case, Bryson ; Chavez-Pirson, Arturo ; Paysnoe, Gary ; Whitwham, Jim ; Moran, Patrick ; Rohan, Pete ; Wang, Zuolan ; Jiang, Shibin ; Eaton, William ; Brutsch, Martin ; Li, Ping ; Song, Ike
Author_Institution :
NP Photonics Inc., Tucson, AZ, USA
Abstract :
In this paper, we present a novel total-internal-reflection (TIR) pump-signal coupler for coupling multimode pump light from a broad-area laser into a double-clad fiber (DCF) having small inner-clad diameters with higher pump brightness. We demonstrate a coupling efficiency exceeding 90% with negligible effect on the single-mode signal. The TIR couplers have wide application to compact high performance amplifiers utilizing multimode pump sources.
Keywords :
light reflection; optical fibre amplifiers; optical fibre cladding; optical fibre couplers; optical fibre fabrication; optical pumping; semiconductor lasers; broad-area diode laser; double-clad fiber; multimode pump light; pump brightness; pump coupling efficiency; single-mode signal; total-internal-reflection pump-signal coupler; Diode lasers; Fiber lasers; Laser excitation; Lenses; Optical coupling; Optical fiber couplers; Optical fiber devices; Optical materials; Optical reflection; Pump lasers;
Conference_Titel :
Lasers and Electro-Optics Society, 2003. LEOS 2003. The 16th Annual Meeting of the IEEE
Print_ISBN :
0-7803-7888-1
DOI :
10.1109/LEOS.2003.1253041
