title: Holmium-doped fluorotellurite microstructured fibers for 2.1 μm lasing.
abstract: Holmium (Ho3+)-doped fluorotellurite microstructured fibers based on TeO2-BaF2-Y2O3 glasses are fabricated by using a rod-in-tube method. By using a 1.992 μm fiber laser as the pump source, lasing at 2.077 μm is obtained from a 27 cm long Ho3+-doped fluorotellurite microstructured fiber. The maximum unsaturated power is about 161 mW and the corresponding slope efficiency is up to 67.4%. The influence of fiber length on lasing at 2.1 μm is also investigated. Our results show that Ho3+-doped fluorotellurite microstructured fibers are promising gain media for 2.1 μm laser applications.
authors.forename: Chuanfei
authors.initials: C
authors.lastname: Yao
authors.forename: Chunfeng
authors.initials: C
authors.lastname: He
authors.forename: Zhixu
authors.initials: Z
authors.lastname: Jia
authors.forename: Shunbin
authors.initials: S
authors.lastname: Wang
authors.forename: Guanshi
authors.initials: G
authors.lastname: Qin
authors.forename: Yasutake
authors.initials: Y
authors.lastname: Ohishi
authors.forename: Weiping
authors.initials: W
authors.lastname: Qin
mesh_terms: D006695:Holmium / Q000737:chemistry*; D007834:Lasers; D055100:Optical Fibers; D013691:Tellurium / Q000737:chemistry*
chemical_list: C026660:tellurous acid; D013691:Tellurium; D006695:Holmium