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Proceedings Paper

Influence of the thermal conductivity on the growth of halide single-crystal fibers
Author(s): Yiding Wang; TieCheng Liu; Hong-Bo Sun; Yu-Dong Li; TianQuan Lu; Shiyong Liu
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Paper Abstract

Some conclusions have been drawn from the growth of KCl and AgCl optical fiber in the present paper. There is a temperature region with gradient near the solid-melt interface. The phase change latent heat is transmitted by the grown crystal. According to thermal transmission equation, the thermal conductivity (TC) in crystal, Ks, and that in melt, Km, near the solid-melt interface affect strongly on the temperature gradient along the grown axis in crystal and melt. Generally, thermal conductivity in crystal Ks is greater than that in the melt, Km. Similarly, K (metal) > K (nonmetal). TC of non-conducting crystal and metal will reduce with temperature increased TC in conducting liquid is 10 - 1000 times greater than that of non-conducting liquid. Halide ionic crystal with NaCl-type structure is nonconductor, whose TC Ks 1/T, in vicinity of melting point. However halid melt is conducting and its TC, Km, increases as greatly as to transcend the value of Kg. Therefore the temperature gradient in crystal is inevitably greater than that in melt near the solid-melt interface.

Paper Details

Date Published: 20 September 1996
PDF: 3 pages
Proc. SPIE 2893, Fiber Optic Components and Optical Communication, (20 September 1996); doi: 10.1117/12.252023
Show Author Affiliations
Yiding Wang, Jilin Univ. (China)
TieCheng Liu, Jilin Univ. (China)
Hong-Bo Sun, Jilin Univ. (China)
Yu-Dong Li, Jilin Univ. (China)
TianQuan Lu, Jilin Univ. (China)
Shiyong Liu, Jilin Univ. (China)


Published in SPIE Proceedings Vol. 2893:
Fiber Optic Components and Optical Communication
Kam Tai Chan; Shuisheng Jian; Franklin F. Tong, Editor(s)

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