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Proceedings Paper

Recent development of organic dye-doped sol-gel materials for photonics
Author(s): XiaoLei Zhu; Sio Kuan Lam; Man-shih Athena Chan; Yan Chi Tsang; Dennis Y. Lo
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Paper Abstract

Optical homogeneity of organic dye-doped sol-gel silica slab has been improved. Single longitudinal mode laser oscillation with 1.58GHz linewidth at 467nm wavelength has been achieved. The first operation of a distributed feedback dye-doped sol-gel silica laser, with periodic gain modulation induced by the interference pattern of the pump laser beams, has been demonstrated in the red and the blue optical regions. 2Onm wavelength tuning range, 4.5%slope efficiency and 6Opm laser linewidth have also been obtained. Based on the quenching ofphosphorescence by oxygen, a novel oxygen sensor has been developed using erythrosin B doped sol-gel silica. The oxygen sensing is effective from O.Ol4mbar to 600mbar, and the sensitivity improves by a factor of 10 as compared to transition-metal optical fiber oxygen sensors.

Paper Details

Date Published: 2 May 2000
PDF: 8 pages
Proc. SPIE 3943, Sol-Gel Optics V, (2 May 2000); doi: 10.1117/12.384339
Show Author Affiliations
XiaoLei Zhu, Chinese Univ. of Hong Kong (Hong Kong)
Sio Kuan Lam, Chinese Univ. of Hong Kong (Hong Kong)
Man-shih Athena Chan, Chinese Univ. of Hong Kong (Hong Kong)
Yan Chi Tsang, Chinese Univ. of Hong Kong (Hong Kong)
Dennis Y. Lo, Chinese Univ. of Hong Kong (Hong Kong)

Published in SPIE Proceedings Vol. 3943:
Sol-Gel Optics V
Bruce S. Dunn; Edward J. A. Pope; Helmut K. Schmidt; Masayuki Yamane, Editor(s)

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