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Multi-pulse operation of a Kerr-lens mode-locked femtosecond laser |
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| Authors: | Jian Wu Hua Cai Xiaohong Han Heping Zeng |
| Institution: | State Key Laboratory of Precision Spectroscopy, and Department of Physics, East China Normal University, Shanghai 200062 |
| Abstract: | Our experimental results show that the presence of a proper amount of negative group velocity dispersion is essential to multi-pulse operation of a Kerr-lens mode-locked femtosecond laser. We demonstrate that the pulse separations and the number of pulses contained within a cavity round trip are strongly dependent on the initial perturbations. The results allow us to get a better understanding on the influences of the convoluted self-phase modulation and intra-cavity dispersions on the stable multi-pulse oscillation in a Kerr-lens mode-locked femtosecond laser. |
| Keywords: | femtosecond laser better understanding influences modulation dispersions stable oscillation pulse number cavity round trip dependent initial perturbations experimental results show presence |
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