An actively Q-switched fiber laser with cylindrical vector beam generation

Jiaojiao Zhang, Zuxing Zhang, Yu Cai, Hongdan Wan, Zhiqiang Wang, Lin Zhang

Research output: Contribution to journalArticle

Abstract

We demonstrate an actively Q-switched fiber laser with cylindrical vector beam (CVB) emission using a few-mode fiber Bragg grating as the mode selection component and an acousto-optic modulator to achieve Q-switching. To the best of our knowledge, this is the first such demonstration. Using a linear cavity configuration, an actively Q-switched CVB with a pulse width of about 64 ns, a pulse energy of 4.25 µJ and a repetition rate of 20 kHz has been obtained. Moreover, by tuning the polarization controllers radially and azimuthally, polarized Q-switched beams can be excited separately with a polarization purity of  >94.5%. This compact Q-switched fiber laser with ns CVB pulse output could find potential applications in the field of material processing, nonlinear optics and so on.
Original languageEnglish
Pages (from-to)035107
JournalLaser Physics Letters
Volume15
Issue number3
DOIs
Publication statusPublished - 14 Feb 2018

Fingerprint

Q switched lasers
Fiber lasers
fiber lasers
Polarization
Q switching
Nonlinear optics
Fiber Bragg gratings
Modulators
Laser pulses
Optics
nonlinear optics
acousto-optics
Demonstrations
polarization
Tuning
pulses
Bragg gratings
modulators
repetition
controllers

Keywords

  • Q-switching, cylindrical vector beam, fiber Bragg grating

Cite this

Zhang, Jiaojiao ; Zhang, Zuxing ; Cai, Yu ; Wan, Hongdan ; Wang, Zhiqiang ; Zhang, Lin. / An actively Q-switched fiber laser with cylindrical vector beam generation. In: Laser Physics Letters. 2018 ; Vol. 15, No. 3. pp. 035107.
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abstract = "We demonstrate an actively Q-switched fiber laser with cylindrical vector beam (CVB) emission using a few-mode fiber Bragg grating as the mode selection component and an acousto-optic modulator to achieve Q-switching. To the best of our knowledge, this is the first such demonstration. Using a linear cavity configuration, an actively Q-switched CVB with a pulse width of about 64 ns, a pulse energy of 4.25 µJ and a repetition rate of 20 kHz has been obtained. Moreover, by tuning the polarization controllers radially and azimuthally, polarized Q-switched beams can be excited separately with a polarization purity of  >94.5{\%}. This compact Q-switched fiber laser with ns CVB pulse output could find potential applications in the field of material processing, nonlinear optics and so on.",
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An actively Q-switched fiber laser with cylindrical vector beam generation. / Zhang, Jiaojiao; Zhang, Zuxing; Cai, Yu; Wan, Hongdan; Wang, Zhiqiang; Zhang, Lin.

In: Laser Physics Letters, Vol. 15, No. 3, 14.02.2018, p. 035107.

Research output: Contribution to journalArticle

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T1 - An actively Q-switched fiber laser with cylindrical vector beam generation

AU - Zhang, Jiaojiao

AU - Zhang, Zuxing

AU - Cai, Yu

AU - Wan, Hongdan

AU - Wang, Zhiqiang

AU - Zhang, Lin

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AB - We demonstrate an actively Q-switched fiber laser with cylindrical vector beam (CVB) emission using a few-mode fiber Bragg grating as the mode selection component and an acousto-optic modulator to achieve Q-switching. To the best of our knowledge, this is the first such demonstration. Using a linear cavity configuration, an actively Q-switched CVB with a pulse width of about 64 ns, a pulse energy of 4.25 µJ and a repetition rate of 20 kHz has been obtained. Moreover, by tuning the polarization controllers radially and azimuthally, polarized Q-switched beams can be excited separately with a polarization purity of  >94.5%. This compact Q-switched fiber laser with ns CVB pulse output could find potential applications in the field of material processing, nonlinear optics and so on.

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