26 February 2018 Switchable and tunable dual-wavelength Er-doped fiber ring laser with single-frequency lasing wavelengths
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Proceedings Volume 10512, Fiber Lasers XV: Technology and Systems; 105122C (2018) https://doi.org/10.1117/12.2289102
Event: SPIE LASE, 2018, San Francisco, California, United States
Abstract
We obtain a switchable and tunable dual-wavelength single-frequency Er-doped ring fiber laser. In order to realize single-longitudinal output, two saturable-absorber-based tracking narrow-band filters are formed in 3- meter-long unpumped Er-doped fiber to narrow the linewidth via using the PM-FBG as a reflection filter. The maximum output power is 2.11 mW centered at 1550.16 nm and 1550.54 nm when the fiber laser operates in dual-wavelength mode. The corresponding linewidths of those two wavelengths are measured to be 769 Hz and 673 Hz, respectively. When the temperature around the PM-FBG is changed from 15 °C to 55 °C, the dual-wavelength single-frequency fiber laser can be tuned from 1550.12 nm to 1550.52 nm and from 1550.49 nm to 1550.82 nm, respectively.
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Haiwei Zhang, Wei Shi, Xiaolei Bai, Quan Sheng, Lifang Xue, Jianquan Yao, "Switchable and tunable dual-wavelength Er-doped fiber ring laser with single-frequency lasing wavelengths", Proc. SPIE 10512, Fiber Lasers XV: Technology and Systems, 105122C (26 February 2018); doi: 10.1117/12.2289102; https://doi.org/10.1117/12.2289102
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