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Proceedings Paper

Researches on the CW Tm:Ho codoped silica fiber lasers operating at 2-um spectral region
Author(s): Shufu Dong; Guofu Chen; Xianhua Wang; Wei Zhao
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Paper Abstract

The properties of a Ti:sapphire pumped CW operation Tm-Ho co-doped silica fiber lasers are presented. The lasing wavelength, output power, slope efficiency, and threshold are measured under different conditions. The measured maximum output power from the fiber laser of 240 mW at about 1870 nm was generated for a fiber length of 52 cm with an absorbed pumped power of 1.05 Watt at 796 nm. The slope efficiency of approximately 31% is similar to the singly Tm-doped fiber lasers. The longest output wavelength of 1970 nm was also generated from the Tm-Ho co-doped fiber laser when the fiber length was extended to 3.03 m, which shows the energy transfer process of the Tm-Ho co-doped system. A simplified numerical model is also constructed for the Tm-Ho co-doped silica system for 3F4 ground state absorption (GSA) pumping, which can be used to analyze the performance theoretically of the Tm-Ho co-doped silica fiber lasers.

Paper Details

Date Published: 12 May 2004
PDF: 7 pages
Proc. SPIE 5280, Materials, Active Devices, and Optical Amplifiers, (12 May 2004); doi: 10.1117/12.522159
Show Author Affiliations
Shufu Dong, Xi'an Institute of Optics and Precision Mechanics (China)
Air Force Engineering Univ. (China)
Guofu Chen, Xi'an Institute of Optics and Precision Mechanics (China)
Xianhua Wang, Xi'an Institute of Optics and Precision Mechanics (China)
Wei Zhao, Xi'an Institute of Optics and Precision Mechanics (China)

Published in SPIE Proceedings Vol. 5280:
Materials, Active Devices, and Optical Amplifiers
Connie J. Chang-Hasnain; Dexiu Huang; Yoshiaki Nakano; Xiaomin Ren, Editor(s)

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