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Title: Selenium semiconductor core optical fibers

Phosphate glass-clad optical fibers containing selenium (Se) semiconductor core were fabricated using a molten core method. The cores were found to be amorphous as evidenced by X-ray diffraction and corroborated by Micro-Raman spectrum. Elemental analysis across the core/clad interface suggests that there is some diffusion of about 3 wt % oxygen in the core region. Phosphate glass-clad crystalline selenium core optical fibers were obtained by a postdrawing annealing process. A two-cm-long crystalline selenium semiconductor core optical fibers, electrically contacted to external circuitry through the fiber end facets, exhibit a three times change in conductivity between dark and illuminated states. Such crystalline selenium semiconductor core optical fibers have promising utility in optical switch and photoconductivity of optical fiber array.
Authors:
; ; ; ; ; ; ;  [1] ;  [2] ;  [2]
  1. State Key Laboratory of Luminescent Materials and Devices and Institute of Optical Communication Materials, South China University of Technology, Guangzhou 510640 (China)
  2. (China)
Publication Date:
OSTI Identifier:
22454448
Resource Type:
Journal Article
Resource Relation:
Journal Name: AIP Advances; Journal Volume: 5; Journal Issue: 2; Other Information: (c) 2015 Author(s); Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; ANNEALING; DIFFUSION; ELECTRIC CONTACTS; ELECTRIC UTILITIES; INTERFACES; OPTICAL FIBERS; OXYGEN; PHOSPHATE GLASS; PHOTOCONDUCTIVITY; RAMAN SPECTRA; SELENIUM; SEMICONDUCTOR MATERIALS; X-RAY DIFFRACTION