Forty-five terawatt vortex ultrashort laser pulses from a chirped-pulse amplification system

Zhenkuan Chen; Shuiqin Zheng; Xiaoming Lu; Xinliang Wang; Yi Cai; Congying Wang; Maijie Zheng; Yuexia Ai; Yuxin Leng; Shixiang Xu; Dianyuan Fan

doi:10.1017/hpl.2022.19

Journals >High Power Laser Science and Engineering >Volume 10 >Issue 5 >Page 05000e32 > Article

High Power Laser Science and Engineering
Vol. 10, Issue 5, 05000e32 (2022)

Forty-five terawatt vortex ultrashort laser pulses from a chirped-pulse amplification system

Zhenkuan Chen^1、2, Shuiqin Zheng^1、2、4, Xiaoming Lu³, Xinliang Wang³, Yi Cai^1、*, Congying Wang¹, Maijie Zheng¹, Yuexia Ai¹, Yuxin Leng³, Shixiang Xu¹, and Dianyuan Fan²

Author Affiliations

¹Shenzhen Key Laboratory of Micro-Nano Photonic Information Technology, Key Laboratory of Optoelectronic Devices and Systems of Ministry of Education and Guangdong Province, College of Physics and Optoelectronic Engineering, Shenzhen University, Guangzhou, China

²SZU-NUS Collaborative Innovation Center for Optoelectronic Science & Technology, Key Laboratory of Optoelectronic Devices and Systems of Ministry of Education and Guangdong Province, Shenzhen University, Guangzhou, China

³State Key Laboratory of High Field Laser Physics, Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai, China

⁴Great Bay University, Dongguan, China

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DOI: 10.1017/hpl.2022.19 Cite this Article Set citation alerts

Zhenkuan Chen, Shuiqin Zheng, Xiaoming Lu, Xinliang Wang, Yi Cai, Congying Wang, Maijie Zheng, Yuexia Ai, Yuxin Leng, Shixiang Xu, Dianyuan Fan. Forty-five terawatt vortex ultrashort laser pulses from a chirped-pulse amplification system[J]. High Power Laser Science and Engineering, 2022, 10(5): 05000e32 Copy Citation Text

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Schematics of the vortex CPA experimental setup (a) and the optical vortex converter (b). QW, quarter-wave plate; P, polarizer; QP, q-plate, vortex half-wave plate; OVC, optical vortex converter; BE, beam expander; PM, off-axis parabolic mirror.

Fig. 1. Schematics of the vortex CPA experimental setup (a) and the optical vortex converter (b). QW, quarter-wave plate; P, polarizer; QP, q-plate, vortex half-wave plate; OVC, optical vortex converter; BE, beam expander; PM, off-axis parabolic mirror.

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Near-field intensity distributions of vortex beams for topological charges l = 1 (upper, (a)–(c)) and 2 (lower, (d)–(f)), recorded by photographic papers. The figures correspond to the measurement places behind the OVC (left), four-pass amplifier I (middle) and four-pass amplifier II (right).

Fig. 2. Near-field intensity distributions of vortex beams for topological charges l = 1 (upper, (a)–(c)) and 2 (lower, (d)–(f)), recorded by photographic papers. The figures correspond to the measurement places behind the OVC (left), four-pass amplifier I (middle) and four-pass amplifier II (right).

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Fig. 3. Far-field profiles for l = 1 by a spherical lens (upper) and a cylindrical lens (lower). Here, (a)–(c) correspond to Figures 2(a)–2(c), respectively.

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Fig. 4. Far-field profiles for l = 2 by a spherical (upper) and a cylindrical lens (lower). Here, (a)–(c) correspond to Figures 2(a)–2(c), respectively.

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Fig. 5. The spot profiles at the near-field after compression (a) and the far-field with an F/4 parabolic mirror (b).

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Fig. 6. (a) Measured spectra after stretching (black line) and compression (red line). (b) Measured autocorrelation trace of the compressed pulse sampled in the region within the blue circle in Figure 5(a).

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