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2-μm switchable, tunable and power-controllable dual-wavelength fiber laser based on parallel cavities using 3 × 3 coupler

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Abstract

We demonstrate a switchable, tunable and power-controllable dual-wavelength fiber laser in 2-μm region based on parallel cavities using a 3 × 3 coupler. The laser topology is based on the parallel connection of fiber Bragg gratings (FBGs) using 3 × 3 coupler which act as two individual cavities, so that the dual wavelengths are tunable and switchable by adjusting the center wavelengths of FBGs and the cavity losses, respectively. With suitable cavity losses and input pumping power, we can obtain a 2-μm switchable single- or dual-wavelength fiber laser. The proposed configuration has very good application prospects in the fields of atmospheric transmission, gas sensing, lidar and new wavelength-division-multiplexed fiber communication systems.

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Acknowledgments

This work is supported by a grant from the National Natural Science Foundation of China (Nos. 61290315, 61275083) and the Fundamental Research Funds for the Central Universities (HUST: No. 2014CG002). In addition, the authors thank Prof. Qizhen Sun for providing the FBGs.

Conflict of interest

The authors declare that they have no conflict of interest.

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Authors and Affiliations

  1. School of Optical and Electronic Information, National Engineering Laboratory for Next Generation Internet Access System, Huazhong University of Science and Technology, No. 1037 Luoyu Road, Wuhan, 430074, Hubei, China

    Wei Yang, Ping Lu, Shun Wang & Deming Liu

  2. School of Electronic Infromation and Communications, Huazhong University of Science and Technology, No. 1037 Luoyu Road, Wuhan, 430074, Hubei, China

    Jiangshan Zhang

Authors
  1. Wei Yang
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  2. Ping Lu
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  3. Shun Wang
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  4. Deming Liu
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  5. Jiangshan Zhang
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Correspondence to Ping Lu.

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Yang, W., Lu, P., Wang, S. et al. 2-μm switchable, tunable and power-controllable dual-wavelength fiber laser based on parallel cavities using 3 × 3 coupler. Appl. Phys. B 120, 349–354 (2015). https://doi.org/10.1007/s00340-015-6143-8

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  • DOI: https://doi.org/10.1007/s00340-015-6143-8

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