Exceeded 1W average power, 1kW peak power, and all-fiber nanosecond Yb-doped amplifier

Fengnian Liu; Zhi Wang; Lingling Xu; Bangcai Huang; Wande Fan; Shuzhong Yuan

doi:10.1117/12.802525

11 November 2008 Exceeded 1W average power, 1kW peak power, and all-fiber nanosecond Yb-doped amplifier

Fengnian Liu, Zhi Wang, Lingling Xu, Bangcai Huang, Wande Fan, Shuzhong Yuan

Proceedings Volume 7134, Passive Components and Fiber-based Devices V; 71343O (2008) https://doi.org/10.1117/12.802525
Event: Asia-Pacific Optical Communications, 2008, Hangzhou, China

Abstract

We report on the fiber-based amplification of a commercially packaged, fiber-pigtailed-pulsed diode laser operating at wavelength of 1064nm (bandwidth 0.45nm). The cascaded Yb-doped fiber amplifier can operate safely by using cascaded Wavelength division multiplexing (WDM) in each single-mode amplification stage. The total isolation of cascaded WDM can protect the laser diodes from destroyed by feedback of optical power. At repetition rate of 50kHz, pulse duration of 20ns, and average power of 0.5mW, output power up to 1.05W And peak power up to 1.05kW are obtained, with a high signal to noise ratio of 20dB. The whole system is a good choice for a preamplifier of high-power short-pulse amplification. The aim of the experiment is to study the design of preamplifier for high-power short-pulse amplifier via cascaded fiber-based amplifier.

Citation Download Citation

Fengnian Liu, Zhi Wang, Lingling Xu, Bangcai Huang, Wande Fan, and Shuzhong Yuan "Exceeded 1W average power, 1kW peak power, and all-fiber nanosecond Yb-doped amplifier", Proc. SPIE 7134, Passive Components and Fiber-based Devices V, 71343O (11 November 2008); https://doi.org/10.1117/12.802525

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