title: Fluorescence enhancement in broadband Cr-doped fibers fabricated by drawing tower.
abstract: The fluorescence enhancement in broadband Cr-doped fibers (CDFs) fabricated by a drawing tower with a redrawn powder-in-tube preform is proposed and demonstrated. The CDFs after heat treatment exhibited Cr⁴⁺ emission enhancement with spectral density of 200 pW/nm, verified by the formation of α-Mg₂SiO₄ nanocrystalline structures in the core of CDFs. The high fluorescence achievement in the CDFs is essential to develop a broadband CDF amplifier for next-generation optical communication systems.
authors.affiliation: Department of Photonics, National Sun Yat-sen University, Kaohsiung 80424, Taiwan. oris@mail.nsysu.edu.tw
authors.forename: Yi-Chung
authors.initials: YC
authors.lastname: Huang
authors.forename: Chun-Nien
authors.initials: CN
authors.lastname: Liu
authors.forename: Yen-Sheng
authors.initials: YS
authors.lastname: Lin
authors.forename: Jau-Sheng
authors.initials: JS
authors.lastname: Wang
authors.forename: Wei-Lun
authors.initials: WL
authors.lastname: Wang
authors.forename: Fang-Yen
authors.initials: FY
authors.lastname: Lo
authors.forename: Ta-Lung
authors.initials: TL
authors.lastname: Chou
authors.forename: Sheng-Lung
authors.initials: SL
authors.lastname: Huang
authors.forename: Wood-Hi
authors.initials: WH
authors.lastname: Cheng
mesh_terms: D002857:Chromium / Q000737:chemistry*; D004867:Equipment Design; D019544:Equipment Failure Analysis; D005336:Fiber Optic Technology / Q000295:instrumentation*; D005453:Fluorescence
chemical_list: D002857:Chromium