Manipulation of operation states by polarization control in an erbium-doped fiber laser with a hybrid saturable absorber

作者：Lin, Kuei Huei^*; Kang, Jung Jui; Wu, Hsiao Hua; Lee, Chao Kuei; Lin, Gong Ru

来源：Optics Express, 2009, 17(6): 4806-4814.

DOI：10.1364/OE.17.004806

We propose an operation switchable ring-cavity erbium-doped fiber laser (EDFL) via intra-cavity polarization control. By using a semiconductor saturable absorber mirror in the EDFL cavity, stable Q-switching, Q-switched mode-locking, continuous-wave mode-locking, pulse splitting, and harmonic mode-locking pulses can be manipulated simply by detuning a polarization controller while keeping the pump power at the same level. All EDFL operation states can be obtained under the polarization angles detuning within 180 degrees. Continuous-wave mode-locking of EDFL with 800-fs pulsewidth repeated at 4 MHz has been obtained, for which the output pulse energy is 0.5 nJ and the peak power is 625 W. Interaction between solitons and the accompanied non-soliton component will lead to either pulse splitting or 5(th)-order harmonic mode-locking at repetition rate of 20 MHz.

• 出版日期2009-3-16
• 单位中山大学