| Autor: |
Jin-Long, Xu, Yue-Xia, Ji, Ye-Qing, Wang, Zhen-Yu, You, Hong-Yan, Wang, Chao-Yang, Tu |
| Rok vydání: |
2014 |
| Zdroj: |
Optics express. 22(6) |
| ISSN: |
1094-4087 |
| Popis: |
A novel self-Q-switched and orthogonally polarized dual-wavelength laser has been investigated with Yb³⁺-doped CGB disordered crystals. By slightly inclining output coupler to introduce the Fresnel loss, we realized simultaneously dual-wavelength laser operation at 1052.6 nm in E//b polarization and 1057.7 nm in E//c polarization with a frequency difference of 1.38 THz. Self-Q-switched pulse generation was observed in this free-running laser, originating from the nonlinear reabsorption effect of Yb:CGB as well as the strong storage of inversion population induced by the long excited-state lifetime (~1 ms). Pulse duration of 287 ns was obtained with an output average power of 416 mW and a repetition rate of 35 kHz. The self-Q-switching effect increased the peak power by 100 times the average power. This very simple laser, free from the complexity and high-cost of additional intracavity polarization modulator and Q-switcher, may be applied for constructing miniature, integrated and portable laser system. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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