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Chinese Optics Letters, Volume. 22, Issue 9, 091402(2024)

Mode-locked fiber lasers at 1064 and 910 nm wavelengths using Nd3+-doped silica fiber

He'nan Shen1,2, Xilong Zhao2,3, Fei Yu2,3、*, Yazhou Wang2, Yafei Wang2, Yan Sun2, Shikai Wang2, Yinggang Chen2,3, Zhongqing Jia4, Ruizhan Zhai4, Chunlei Yu2,3,5, and Lili Hu2,3,5
Author Affiliations
  • 1School of Optical-Electrical and Computer Engineering, University of Shanghai for Science and Technology, Shanghai 200093, China
  • 2Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai 201800, China
  • 3University of Chinese Academy of Sciences, Beijing 100049, China
  • 4Laser Institute, Qilu University of Technology (Shandong Academy of Sciences), Qingdao 266000, China
  • 5Hangzhou Institute for Advanced Study, University of Chinese Academy of Sciences, Hangzhou 310024, China
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    (a) Image of Nd3+-doped core-glass rod. (b) Electronic probe microanalyzer (EPMA) mapping of the Nd elements in the silica glass rod. (c) The absorption spectrum and (d) the fluorescence spectrum of Nd3+.

    Fig. 1. (a) Image of Nd3+-doped core-glass rod. (b) Electronic probe microanalyzer (EPMA) mapping of the Nd elements in the silica glass rod. (c) The absorption spectrum and (d) the fluorescence spectrum of Nd3+.

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    (a) Experimental setup of the dispersion measurement platform. SLD, superluminescent diode; BS, optical beam splitter; M1-M5, reflectors; MTS, motorized translation stage; PC, computer; PD, photodetector; LIA, lock-in amplifier. (b) Dispersion of the NDF. (c) Measured loss of the NDF.

    Fig. 2. (a) Experimental setup of the dispersion measurement platform. SLD, superluminescent diode; BS, optical beam splitter; M1-M5, reflectors; MTS, motorized translation stage; PC, computer; PD, photodetector; LIA, lock-in amplifier. (b) Dispersion of the NDF. (c) Measured loss of the NDF.

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    Experimental configuration of a 1.06 µm laser based on the NDF. OC, optical coupler; WDM, wavelength division multiplexer; PC, polarization controller; ISO, isolator; SMF, single-mode fiber; BPF, bandpass filter.

    Fig. 3. Experimental configuration of a 1.06 µm laser based on the NDF. OC, optical coupler; WDM, wavelength division multiplexer; PC, polarization controller; ISO, isolator; SMF, single-mode fiber; BPF, bandpass filter.

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    (a) Optical spectrum of the 1.06 µm laser. The inset shows the numerical simulation result. (b) The temporal pulse train. (c) The RF spectrum with 1 Hz RBW. The inset shows the RF spectrum with 100 Hz RBW. (d) The autocorrelation trace of the laser pulses. The inset shows the simulation result. (e) The output power of the laser under a series of different pump powers. (f) The optical spectrum monitored for two hours.

    Fig. 4. (a) Optical spectrum of the 1.06 µm laser. The inset shows the numerical simulation result. (b) The temporal pulse train. (c) The RF spectrum with 1 Hz RBW. The inset shows the RF spectrum with 100 Hz RBW. (d) The autocorrelation trace of the laser pulses. The inset shows the simulation result. (e) The output power of the laser under a series of different pump powers. (f) The optical spectrum monitored for two hours.

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    (a) Optical spectrum of the 1.06 µm laser. The inset shows the numerical simulation result. (b) The temporal pulse train. (c) The RF spectrum with 1 Hz RB W. The inset shows the RF spectrum with 100 Hz RBW. (d) The autocorrelation trace of the laser pulses. The inset shows the simulation result. (e) The output power of the laser under a series of different pump powers. (f) The optical spectrum monitored for two hours.

    Fig. 5. (a) Optical spectrum of the 1.06 µm laser. The inset shows the numerical simulation result. (b) The temporal pulse train. (c) The RF spectrum with 1 Hz RB W. The inset shows the RF spectrum with 100 Hz RBW. (d) The autocorrelation trace of the laser pulses. The inset shows the simulation result. (e) The output power of the laser under a series of different pump powers. (f) The optical spectrum monitored for two hours.

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    (a) The temporal profiles and (b) the optical spectra of the lasing output when different BPFs are applied. (c),(d) The dependence of the pulse duration and bandwidth, and the TBP as a function of the BPF bandwidth.

    Fig. 6. (a) The temporal profiles and (b) the optical spectra of the lasing output when different BPFs are applied. (c),(d) The dependence of the pulse duration and bandwidth, and the TBP as a function of the BPF bandwidth.

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    Experimental setup of the Nd-doped all-fiber NPR mode-locked laser. OC, optical coupler; WDM1, WDM3, 808/910 wavelength division multiplexers; WDM2, 910/1060 wavelength division multiplexer; PC, polarization controller; ISO, isolator.

    Fig. 7. Experimental setup of the Nd-doped all-fiber NPR mode-locked laser. OC, optical coupler; WDM1, WDM3, 808/910 wavelength division multiplexers; WDM2, 910/1060 wavelength division multiplexer; PC, polarization controller; ISO, isolator.

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    (a) Optical spectrum of lasing at 0.9 µm wavelength. (b) The temporal measurement of the pulse train. (c),(d) The RF spectra of the pulse trains with bandwidths of 10 and 2 MHz, respectively. (e) The temporal profile of the single laser pulse. (f) Laser output power as a function of pump power.

    Fig. 8. (a) Optical spectrum of lasing at 0.9 µm wavelength. (b) The temporal measurement of the pulse train. (c),(d) The RF spectra of the pulse trains with bandwidths of 10 and 2 MHz, respectively. (e) The temporal profile of the single laser pulse. (f) Laser output power as a function of pump power.

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    • Table 1. NDFs and NDF-Based Mode-Locked Lasers

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      Table 1. NDFs and NDF-Based Mode-Locked Lasers

      Laser Wavelength (μm)Core Diameter (μm)NAEnergy (nJ)Slope Efficiency (%)Ref.
      1.0640.141.147.2This work
      0.92.71.44
      1.065.50.1160.01–[12]
      1.064.50.140.0440.21[13]
      0.94.20.141.251.9[4]
      0.95–2.2–[11]
      0.950.121.62∼10[15]
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    He'nan Shen, Xilong Zhao, Fei Yu, Yazhou Wang, Yafei Wang, Yan Sun, Shikai Wang, Yinggang Chen, Zhongqing Jia, Ruizhan Zhai, Chunlei Yu, Lili Hu, "Mode-locked fiber lasers at 1064 and 910 nm wavelengths using Nd3+-doped silica fiber," Chin. Opt. Lett. 22, 091402 (2024)

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    Paper Information

    Category: Lasers, Optical Amplifiers, and Laser Optics

    Received: Mar. 4, 2024

    Accepted: May. 13, 2024

    Published Online: Sep. 20, 2024

    The Author Email: Fei Yu (yufei@siom.ac.cn)

    DOI:10.3788/COL202422.091402

    CSTR:32184.14.COL202422.091402

    Topics

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