All-fiber Q-switched and self-mode-locking Er3+/Yb3+-codoped ring laser

Shumin Zhang; Fuyun Lu; Jian Wang; Chunxia Xie; Hongjie Wang; Xiaoyi Dong

doi:10.1117/12.574265

10 January 2005 All-fiber Q-switched and self-mode-locking Er³⁺/Yb³⁺-codoped ring laser

Shumin Zhang, Fuyun Lu, Jian Wang, Chunxia Xie, Hongjie Wang, Xiaoyi Dong

Proceedings Volume 5623, Passive Components and Fiber-based Devices; (2005) https://doi.org/10.1117/12.574265
Event: Asia-Pacific Optical Communications, 2004, Beijing, China

Abstract

A high efficiency Q-switched and self-mode-locked Er³⁺/Yb³⁺ co-doped fiber ring laser with a Mach-Zehnder interferometer (MZI) is proposed. The fiber laser with threshold of 126.84 mw and linewidth of 0.06nm has been demonstrated. The average power of 62.6mW, the peak power of 1231.8mW of the Q-switched giant pulses with the pulse duration of 2.6μs can be achieved. It is found that in order to generate Q-switched giant pulses, different repetition frequency must be selected as pumping power is changed. This phenomenon is observed for the first time to our knowledge. In the experiment, it is also found that stable passive Q-switch pulses can be observed, which waveform is not the same with the different pump power, although the arms lengths of the interferometer is not changed. When the absorbed pumped power is increased to 591.8mW, a self-mode-locking pulse can be formed and it is given a detailed theoretically illustration in this paper.

Citation Download Citation

Shumin Zhang, Fuyun Lu, Jian Wang, Chunxia Xie, Hongjie Wang, and Xiaoyi Dong "All-fiber Q-switched and self-mode-locking Er³⁺/Yb³⁺-codoped ring laser", Proc. SPIE 5623, Passive Components and Fiber-based Devices, (10 January 2005); https://doi.org/10.1117/12.574265

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