• Chinese Optics Letters
  • Vol. 19, Issue 9, 093201 (2021)
Jiajun Song1、2, Zhaohua Wang1、5、*, Xianzhi Wang1、2, Renchong Lü3, Hao Teng1, Jiangfeng Zhu3, and Zhiyi Wei1、2、4、**
Author Affiliations
  • 1Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, Beijing 100190, China
  • 2University of Chinese Academy of Sciences, Beijing 100049, China
  • 3School of Physics and Optoelectronic Engineering, Xidian University, Xi’an 710071, China
  • 4Songshan Lake Materials Laboratory, Dongguan 523808, China
  • 5CAS Center for Excellence in Ultra-intense Laser Science, Shanghai 201800, China
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    DOI: 10.3788/COL202119.093201 Cite this Article Set citation alerts
    Jiajun Song, Zhaohua Wang, Xianzhi Wang, Renchong Lü, Hao Teng, Jiangfeng Zhu, Zhiyi Wei. Generation of 601 fs pulse from an 8 kHz Nd:YVO4 picosecond laser by multi-pass-cell spectral broadening[J]. Chinese Optics Letters, 2021, 19(9): 093201 Copy Citation Text show less
    Experimental setup: Nd:YVO4 regenerative amplifier followed by the MPC and grating compressor. TFP1–TFP5, thin film polarizers; FR1, FR2, Faraday rotators; λ/2, half-wave plate; PC, Pockels cell; M1–M4, regenerative cavity mirrors; DM1, DM2, dichroic mirrors, with high transmission (HT) at 808 nm and HR at 1064 nm; LD, laser diode at 808 nm; L1–L4, lenses; CM1, CM2, concave mirrors.
    Fig. 1. Experimental setup: Nd:YVO4 regenerative amplifier followed by the MPC and grating compressor. TFP1–TFP5, thin film polarizers; FR1, FR2, Faraday rotators; λ/2, half-wave plate; PC, Pockels cell; M1–M4, regenerative cavity mirrors; DM1, DM2, dichroic mirrors, with high transmission (HT) at 808 nm and HR at 1064 nm; LD, laser diode at 808 nm; L1–L4, lenses; CM1, CM2, concave mirrors.
    Characterization of the Nd:YVO4 regenerative amplifier. (a) Spectrum and (b) intensity autocorrelation trace.
    Fig. 2. Characterization of the Nd:YVO4 regenerative amplifier. (a) Spectrum and (b) intensity autocorrelation trace.
    Characterization of the laser pulses after the compression unit. (a) Spectrum after MPC device; inset: calculated FTL pulse duration. (b) Intensity autocorrelation trace after compressor (black) and convolution of the FTL pulse (red).
    Fig. 3. Characterization of the laser pulses after the compression unit. (a) Spectrum after MPC device; inset: calculated FTL pulse duration. (b) Intensity autocorrelation trace after compressor (black) and convolution of the FTL pulse (red).
    Long-term power stability of the (a) Nd:YVO4 picosecond laser and (b) MPC.
    Fig. 4. Long-term power stability of the (a) Nd:YVO4 picosecond laser and (b) MPC.
    Beam quality (M2) (a) before and (b) after the MPC device.
    Fig. 5. Beam quality (M2) (a) before and (b) after the MPC device.
    Jiajun Song, Zhaohua Wang, Xianzhi Wang, Renchong Lü, Hao Teng, Jiangfeng Zhu, Zhiyi Wei. Generation of 601 fs pulse from an 8 kHz Nd:YVO4 picosecond laser by multi-pass-cell spectral broadening[J]. Chinese Optics Letters, 2021, 19(9): 093201
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