journal article·2015-02-01Open access

Selenium semiconductor core optical fibers

G. W. Tang, Q. Qian, K. L. Peng, X. Wen, G. X. Zhou, M. Sun, X. D. Chen, Z. M. Yang

AIP Advances· Volume 5· Issue 2

Abstract

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.
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Research context

OpenAlex topics: Phase-change materials and chalcogenides · Chalcogenide Semiconductor Thin Films · Glass properties and applications

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

Affiliations

State Key Laboratory of Luminescent Materials and Devices and Institute of Optical Communication Materials, South China University of Technology 1 , Guangzhou 510640, China

Guangdong Engineering Technology Research and Development Center of Special Optical Fiber Materials and Devices, South China University of Technology 2 , Guangzhou 510640, China

Guangdong Provincial Key Laboratory of Fiber Laser Materials and Applied Techniques, South China University of Technology 3 , Guangzhou 510640, China

Funding

China State 863 Hi-tech Program · Fundamental Research Funds for the Central Universities · Guangdong Natural Science Foundation · Guangdong Province and Hong Kong Invite Public Program · The Fund of Guangdong Province Cooperation of Produing, Studying and Researching · National Natural Science Foundation of China · China National Funds for Distinguished Young Scientists

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