Observation of dark pulse in a dispersion-managed fiber ring laser |
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Authors: | Haisen Yin Ai-Ping Luo Zhi-Chao Luo Jiarui Liu |
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Affiliation: | Key Laboratory of Photonic Information Technology of Guangdong Higher Education Institutes, School of Information and Optoelectronic Science and Engineering, South China Normal University, Guangzhou 510006, R.P. China |
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Abstract: | The observation of dark pulse in a dispersion-managed fiber ring laser with net negative cavity group velocity dispersion (GVD) is reported. Both bright and dark pulses can be obtained in our fiber laser. When we appropriately adjust the cavity birefringence to achieve triple-wavelength mode-locked operation in the laser by rotating the polarization controller, the bright pulse could be switched to dark pulse. It is believed that the dark dispersion-managed (DM) pulse generation is caused by the linear and nonlinear intermodulation effects among the three wavelength pulses. |
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Keywords: | Dark pulse Dispersion-managed Triple-wavelength |
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