Chinese Optics Letters, 2014, 12 (11): 111403, Published Online: Oct. 27, 2014  

Stable multi-wavelength thulium-doped fiber laser based on all-fiber Mach–Zehnder interferometer Download: 815次

Author Affiliations
1 National and Local Joint Engineering Research Center of Space Optoelectronics Technology, Changchun University of Science and Technology, Changchun 130022, China
2 College of Science, Changchun University of Science and Technology, Changchun 130022, China
Abstract
We propose and experimentally demonstrate a multi-wavelength thulium-doped fiber (TDF) laser based on all-fiber Mach–Zehnder interferometer (MZI) at 1.9 mm. Here a segment of 4 m single-mode TDF is pumped by 1568 nm fiber laser for 2 mm band optical gain. The MZI includes two cascaded 3 dB coupler. A segment of 3.5 m long un-pumped polarization-maintaining TDF and polarization controller (PC) are joined in the ring cavity to suppress the mode competition. Multi-wavelength lasers at 1.9 mm with wavelength number from one to four are obtained by adjusting the PC and the stability of output power of multi-wavelength fiber laser is analyzed.

Peng Zhang, Wanzhuo Ma, Tianshu Wang, Qingsong Jia, Chunming Wan. Stable multi-wavelength thulium-doped fiber laser based on all-fiber Mach–Zehnder interferometer[J]. Chinese Optics Letters, 2014, 12(11): 111403.

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