| Autor: |
Zhu, Yihuai, Liu, Weiqi, Du, Deguo, Ruan, Shuangchen, Guo, Chunyu, Yan, Peiguang, Hua, Ping, Xia, Linzhong, Lue, Qitao |
| Zdroj: |
Applied Optics; November 2020, Vol. 59 Issue: 33 p10264-10268, 5p |
| Abstrakt: |
The generation of square-wave pulses in a 1/1.5-µm dual-band mode-locked fiber laser is experimentally demonstrated. The laser is based upon a peculiar “figure-θ” architecture that exploits a single active fiber to realize dual-band operation. High-energy square-wave pulses are simultaneously generated in both the 1-µm and the 1.5-µm spectral band using the laser. The 1-µm pulse maintains wave-breaking-free operation during the increase of the pump power and finally achieves energy as high as 88.6 nJ, while the 1.5-µm pulse achieves energy up to 1.5 µJ before it ultimately collapses into second-order mode locking. To the best of our knowledge, this is the first report on the formation of square-wave pulses in dual-band mode-locked fiber lasers. |
| Databáze: |
Supplemental Index |
| Externí odkaz: |
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