期刊
IEEE PHOTONICS TECHNOLOGY LETTERS
卷 27, 期 9, 页码 951-954出版社
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/LPT.2015.2403842
关键词
Fiber gratings; fiber lasers; dual-wavelength; single-longitudinal-mode
资金
- National Natural Science Foundation of China [61275091, 61327006]
We have demonstrated a dual-wavelength thulium-doped fiber laser with single-longitudinal-mode (SLM) operation at similar to 2-mu m region. A polarization-maintaining chirped Moire fiber Bragg grating was employed as a polarization-dependent narrow-band filter, to suppress multilongitudinal-mode oscillation. Single- and dual-wavelength switchable operation was achieved by simply adjusting the polarization controller. We also showed that the laser lines retained SLM operation with the additional benefit of single polarization. Meanwhile, the dependence of each laser wavelength on the pump power was also investigated in detail.
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