Researches on the CW Tm:Ho codoped silica fiber lasers operating at 2-um spectral region

Shufu Dong; Guofu Chen; Xianhua Wang; Wei Zhao

doi:10.1117/12.522159

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12 May 2004 Research on the CW Tm:Ho co-doped silica fiber lasers operating at 2-μm spectral region

Shufu Dong, Guofu Chen, Xianhua Wang, Wei Zhao

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Proceedings Volume 5280, Materials, Active Devices, and Optical Amplifiers; (2004) https://doi.org/10.1117/12.522159
Event: Asia-Pacific Optical and Wireless Communications, 2003, Wuhan, China

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.

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Shufu Dong, Guofu Chen, Xianhua Wang, and Wei Zhao "Research on the CW Tm:Ho co-doped silica fiber lasers operating at 2-μm spectral region", Proc. SPIE 5280, Materials, Active Devices, and Optical Amplifiers, (12 May 2004); https://doi.org/10.1117/12.522159

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