• Advanced Photonics Nexus
  • Vol. 3, Issue 2, 026012 (2024)
Zhitao Zhang1, Hanghang Yu1, Sheng Chen1, Zheng Li1, Xiaobo Heng1, and Hongwen Xuan1、2、*
Author Affiliations
  • 1Chinese Academy of Sciences, GBA branch of Aerospace Information Research Institute, Guangzhou, China
  • 2University of Chinese Academy of Sciences, Beijing, China
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    DOI: 10.1117/1.APN.3.2.026012 Cite this Article Set citation alerts
    Zhitao Zhang, Hanghang Yu, Sheng Chen, Zheng Li, Xiaobo Heng, Hongwen Xuan. High-power, narrow linewidth solid-state deep ultraviolet laser generation at 193 nm by frequency mixing in LBO crystals[J]. Advanced Photonics Nexus, 2024, 3(2): 026012 Copy Citation Text show less
    Experimental setup of the 193-nm laser system. SHG, second-harmonic generation; FHG, fourth-harmonic generation; SFG, sum frequency generation; DM1, AR@515 nm/HR@258 nm dichroic mirror; DM2: HR@258 nm/AR@1553 nm dichroic mirror.
    Fig. 1. Experimental setup of the 193-nm laser system. SHG, second-harmonic generation; FHG, fourth-harmonic generation; SFG, sum frequency generation; DM1, AR@515 nm/HR@258 nm dichroic mirror; DM2: HR@258 nm/AR@1553 nm dichroic mirror.
    Experimental setup of the 1030 nm Yb-hybrid pulsed laser. AOM, acoustic-optics modulator; ISO, isolator; PCF, photonic crystal fiber; PBS, polarization beam splitter; QW, quarter-wave plate.
    Fig. 2. Experimental setup of the 1030 nm Yb-hybrid pulsed laser. AOM, acoustic-optics modulator; ISO, isolator; PCF, photonic crystal fiber; PBS, polarization beam splitter; QW, quarter-wave plate.
    (a) Output power versus pump power in the Yb:YAG bulk crystal amplifier with single-pass and double-pass configurations; (b) the beam profiles of the 1030-nm laser output at 14.6 W of Yb:YAG bulk crystal.
    Fig. 3. (a) Output power versus pump power in the Yb:YAG bulk crystal amplifier with single-pass and double-pass configurations; (b) the beam profiles of the 1030-nm laser output at 14.6 W of Yb:YAG bulk crystal.
    Output average powers of (a) 515-nm laser and (b) 258-nm laser as the function of pump average powers of 1030 and 515 nm lasers, respectively.
    Fig. 4. Output average powers of (a) 515-nm laser and (b) 258-nm laser as the function of pump average powers of 1030 and 515 nm lasers, respectively.
    Output average powers of (a) 221-nm laser and (b) 193-nm laser generated from the first and second SFG in LBO crystal as a function of pump average powers of 258 and 221 nm lasers, respectively.
    Fig. 5. Output average powers of (a) 221-nm laser and (b) 193-nm laser generated from the first and second SFG in LBO crystal as a function of pump average powers of 258 and 221 nm lasers, respectively.
    (a) Pulse duration of the generated 193 nm laser. Inset: Beam profile of the 193-nm laser. Measured beam profiles of (b) the 258-nm laser and (c) the 221-nm laser.
    Fig. 6. (a) Pulse duration of the generated 193 nm laser. Inset: Beam profile of the 193-nm laser. Measured beam profiles of (b) the 258-nm laser and (c) the 221-nm laser.
    Power stability of the free-running 193-nm laser within 1500 s.
    Fig. 7. Power stability of the free-running 193-nm laser within 1500 s.
    Walk-off angle (mrad)deff(pm/V)Angular acceptance (mrad·cm)
    BBO110.602.4000.10
    CLBO38.950.9920.32
    LBO10.870.2541.05
    Table 1. Optical properties of BBO, CLBO, and LBO at 193 nm (1553.3 + 220.9 nm->193.4 nm, type I).
    Zhitao Zhang, Hanghang Yu, Sheng Chen, Zheng Li, Xiaobo Heng, Hongwen Xuan. High-power, narrow linewidth solid-state deep ultraviolet laser generation at 193 nm by frequency mixing in LBO crystals[J]. Advanced Photonics Nexus, 2024, 3(2): 026012
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