期刊
OPTICS LETTERS
卷 37, 期 16, 页码 3426-3428出版社
OPTICAL SOC AMER
DOI: 10.1364/OL.37.003426
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资金
- National Natural Science Fund [10990101, 11004061, 91021014]
- National Key Project for Basic Research [2011CB808105]
- International Science and Technology Cooperation Program of China [2010DFA04410]
We demonstrate a convenient approach to precisely tune the polarization state of a nonlinear-polarization-rotation mode-locked Yb-doped fiber laser by using an electronic polarization controller. It is shown to benefit self-starting of mode-locking states, with precise tuning of the spectral profile, pulse width, and carrier-envelope offset frequency. The pulse width changed linearly by 0.78 ps in the time domain, and the carrier-envelope offset frequency shifted similar to 77.5 MHz in the frequency domain with a slight change of the driving voltage of 30.7 mV applied on the controller, corresponding to a polarization rotation of 0.0135 pi. This facilitated precise and automatic regeneration of a particular mode-locking state by setting an accurate voltage at the polarization controller with a programmed microprocessor control unit. (c) 2012 Optical Society of America
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