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Photonics Research, Volume. 7, Issue 1, 14(2019)

Wideband tunable passively Q-switched fiber laser at 2.8  μm using a broadband carbon nanotube saturable absorber

Yanjia Lü1, Chen Wei1,5、*, Han Zhang2, Zhe Kang3,6、*, Guanshi Qin4, and Yong Liu1
Author Affiliations
  • 1State Key Laboratory of Electronic Thin Films and Integrated Devices, School of Optoelectronic Science and Engineering, University of Electronic Science and Technology of China, Chengdu 610054, China
  • 2College of Electrical Engineering and Information Technology, Sichuan University, Chengdu 610065, China
  • 3Changchun Observatory, National Astronomical Observatories, Chinese Academy of Sciences, Changchun 130012, China
  • 4State Key Laboratory on Integrated Optoelectronics, College of Electronic Science & Engineering, Jilin University, Changchun 130012, China
  • 5e-mail: cwei@uestc.edu.cn
  • 6e-mail: kangz@cho.ac.cn
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    TEM images of SWCNTs on the scale of (a) 100 nm and (b) 10 nm. (c) Raman spectrum.

    Fig. 1. TEM images of SWCNTs on the scale of (a) 100 nm and (b) 10 nm. (c) Raman spectrum.

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    (a) Linear and (b) nonlinear transmission of the SWCNT sample.

    Fig. 2. (a) Linear and (b) nonlinear transmission of the SWCNT sample.

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    Schematic setup of the tunable carbon nanotube Q-switched Ho3+/Pr3+-codoped ZBLAN fiber laser.

    Fig. 3. Schematic setup of the tunable carbon nanotube Q-switched Ho3+/Pr3+-codoped ZBLAN fiber laser.

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    Q-switched pulse train at the launched pump power of 445.6 mW. Inset: corresponding optical and RF spectra.

    Fig. 4. Q-switched pulse train at the launched pump power of 445.6 mW. Inset: corresponding optical and RF spectra.

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    (a) Repetition rate and pulse duration, (b) output power and single pulse energy as functions of the launched pump power.

    Fig. 5. (a) Repetition rate and pulse duration, (b) output power and single pulse energy as functions of the launched pump power.

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    Normalized spectra and the corresponding average output power from the tunable Q-switched laser.

    Fig. 6. Normalized spectra and the corresponding average output power from the tunable Q-switched laser.

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    Repetition rate and pulse duration as functions of the tuning wavelength.

    Fig. 7. Repetition rate and pulse duration as functions of the tuning wavelength.

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    Yanjia Lü, Chen Wei, Han Zhang, Zhe Kang, Guanshi Qin, Yong Liu, "Wideband tunable passively Q-switched fiber laser at 2.8  μm using a broadband carbon nanotube saturable absorber," Photonics Res. 7, 14 (2019)

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    Paper Information

    Category: Lasers and Laser Optics

    Received: Aug. 28, 2018

    Accepted: Nov. 2, 2018

    Published Online: Feb. 21, 2019

    The Author Email: Chen Wei (cwei@uestc.edu.cn), Zhe Kang (kangz@cho.ac.cn)

    DOI:10.1364/PRJ.7.000014

    Topics

    laser devices and laser physics
    Lasers and Laser Optics
    Laser physics
    laser manufacturing
    Instrumentation, Measurement and Metrology