• High Power Laser and Particle Beams
  • Vol. 33, Issue 11, 111004 (2021)
Xuemei Yang, Kan Tian, Linzhen He, Weizhe Wang, and Houkun Liang*
Author Affiliations
  • College of Electronics and Information Engineering, Sichuan University, Chengdu 610065, China
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    DOI: 10.11884/HPLPB202133.210246 Cite this Article
    Xuemei Yang, Kan Tian, Linzhen He, Weizhe Wang, Houkun Liang. Progress on intra-pulse difference frequency generation in femtosecond laser[J]. High Power Laser and Particle Beams, 2021, 33(11): 111004 Copy Citation Text show less
    MIR generation and detection setup
    Fig. 1. MIR generation and detection setup
    Mid-infrared generation based on OP-Gap
    Fig. 2. Mid-infrared generation based on OP-Gap
    Self-compression and MIR generation setup
    Fig. 3. Self-compression and MIR generation setup
    Schematic of the experimental setup for IPDFG
    Fig. 4. Schematic of the experimental setup for IPDFG
    IP-DFG based on quasi-phase matching
    Fig. 5. IP-DFG based on quasi-phase matching
    Schematic experimental setup for IPDFG
    Fig. 6. Schematic experimental setup for IPDFG
    Schematic of the IP-DFG setup
    Fig. 7. Schematic of the IP-DFG setup
    (a) Kerr-lens mode-locked Cr:ZnS oscillator and amplifiers, (b) Schematic of the MIR generation setup
    Fig. 8. (a) Kerr-lens mode-locked Cr:ZnS oscillator and amplifiers, (b) Schematic of the MIR generation setup
    Schematic of experimental setup
    Fig. 9. Schematic of experimental setup
    Schematic of the system layout adopted by Ugaitz Elu et al
    Fig. 10. Schematic of the system layout adopted by Ugaitz  Elu et al
    Schematic of the system layout adopted by Dauiel Lesko et al
    Fig. 11. Schematic of the system layout adopted by Dauiel Lesko et al
    nonlinear crystaltransparency/μmnonlinear coefficient/(pm·V−1bandgap/eV
    KTA0.35~51.973.6
    LNO0.33~5.54.114.2
    BBO0.19~31.482.25
    AGS0.5~1313.72.7
    AGSe0.75~15581.77
    BGSe0.47~1824.32.64
    CSP0.5~985.42.45
    ZGP1.8~12702
    GaSe0.8~1470−902.1
    LGS0.32~11.65.93.76
    OP-GaAs0.9~17942.1
    OP-GaP0.57~12702.26
    Table 1. Comparison of different MIR nonlinear crystals
    pump wavelength/μmnonlinear crystalIP-DFG spectral span/μm conversion efficiencyreference
    1.03LGS8~110.037[10]
    1.57OP-GaP4~120.071[12]
    1.9GaSe5~200.13[13]
    2GaSe7.3~16.51.4[14]
    2ZnSe2.7~200.51[16]
    2.1AGSe7~110.8[17]
    2.5GaSe4.3~17.60.22[18]
    2.5ZGP5.8~12.53.3[18]
    1.9GaSe2.7~170.13[19]
    3GaSe6~13.25.3[20]
    3.2BGGSe0.34~402[21]
    Table 2. The latest results of MIR laser pulses
    Xuemei Yang, Kan Tian, Linzhen He, Weizhe Wang, Houkun Liang. Progress on intra-pulse difference frequency generation in femtosecond laser[J]. High Power Laser and Particle Beams, 2021, 33(11): 111004
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