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Proceedings Paper

Cladded optical fiber laser made from a-axis Nd:MgO:LiNbO3 single-crystal fiber with Mg-ion indiffussion
Author(s): Wenxiu Que; Yan Zhou; Yee Loy Lam; Yuen Chuen Chan; Chan Hin Kam; Yujing Huo; Liangying Zhang; Xi Yao
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Paper Abstract

We report the implementation of a low loss core-cladding waveguide structure of an a-axis Nd:MgO:LiNbO3 single crystal fiber and the demonstration of a frequency-doubled laser made from such a cladded crystal fiber. The laser-heated pedestal grown a-axis single crystal fiber, which has an elliptical cross sectional area of about 200 micrometer X 150 micrometer, was further treated with a Mg-ion indiffusion process. An electron probe microanalysis was used to measure the Mg-ion concentration distribution of the Mg diffused layer. After a number of trials, the diffusion parameters suitable for forming a core-cladding waveguide structure have been obtained. The optical and structural properties of the cladded crystal fibers were also characterized. A diode pumped external cavity frequency doubled laser has been made from the cladded crystal fiber. At room temperature, CW green laser output with a power of 10 (mu) W at the wavelength of 0.532 micrometer has been obtained. The origins of the relatively low frequency-doubled conversion efficiency will also be discussed.

Paper Details

Date Published: 20 September 1999
PDF: 7 pages
Proc. SPIE 3801, Photorefractive Fiber and Crystal Devices: Materials, Optical Properties, and Applications V, (20 September 1999); doi: 10.1117/12.363944
Show Author Affiliations
Wenxiu Que, Nanyang Technological Univ. (Singapore)
Yan Zhou, Nanyang Technological Univ. (Singapore)
Yee Loy Lam, Nanyang Technological Univ. (Singapore)
Yuen Chuen Chan, Nanyang Technological Univ. (Singapore)
Chan Hin Kam, Nanyang Technological Univ. (Singapore)
Yujing Huo, Tsinghua Univ. (China)
Liangying Zhang, Xi'an Jiaotong Univ. (China)
Xi Yao, Xi'an Jiaotong Univ. (China)

Published in SPIE Proceedings Vol. 3801:
Photorefractive Fiber and Crystal Devices: Materials, Optical Properties, and Applications V
Francis T. S. Yu; Shizhuo Yin, Editor(s)

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