title: Test of spectral emission and absorption characteristics of active optical fibers by direct side pumping.
abstract: Emission and absorption are two main properties of active optical fibers that are important for fiber amplifiers and lasers. We propose a direct side pumping scheme for non-deconstructive evaluation of active optical fibers. This scheme enables a simple in situ test of both emission and absorption characteristics without cutting fiber and produces good accuracy with very low pumping background. A commercial Er-doped fiber and a home-made Bi/Er co-doped optical fiber have been tested to demonstrate that the scheme is a useful alternative technique for characterizing active optical fiber or waveguides.
authors.affiliation: Photonics & Optical Communications, School of Electrical Engineering & Telecommunications, University of New South Wales, Sydney 2052, NSW, Australia. zhangjianzhong@hrbeu.edu.cn
authors.forename: Jianzhong
authors.initials: J
authors.lastname: Zhang
authors.forename: Yanhua
authors.initials: Y
authors.lastname: Luo
authors.forename: Zinat M
authors.initials: ZM
authors.lastname: Sathi
authors.forename: Nilram
authors.initials: N
authors.lastname: Azadpeyma
authors.forename: Gang-Ding
authors.initials: GD
authors.lastname: Peng
mesh_terms: D000042:Absorption; D017076:Computer-Aided Design; D004867:Equipment Design; D019544:Equipment Failure Analysis; D005336:Fiber Optic Technology / Q000295:instrumentation*; D053844:Lasers, Solid-State