Femtosecond mid-IR optical vortex laser based on optical parametric chirped pulse amplification

Junyu Qian; Yujie Peng; Yanyan Li; Pengfei Wang; Beijie Shao; Zhe Liu; Yuxin Leng; Ruxin Li

doi:10.1364/PRJ.385190

Journals >Photonics Research >Volume 8 >Issue 3 >Page 421 > Article

Photonics Research
Vol. 8, Issue 3, 421 (2020)

Femtosecond mid-IR optical vortex laser based on optical parametric chirped pulse amplification | Editors' Pick

Junyu Qian^1、2, Yujie Peng^{1、3、4、*}, Yanyan Li¹, Pengfei Wang^1、2, Beijie Shao^1、2, Zhe Liu¹, Yuxin Leng^{1、3、5、*}, and Ruxin Li^{1、3、6、*}

Author Affiliations

¹State Key Laboratory of High Field Laser Physics, Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai 201800, China

²Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing 100049, China

³CAS Center for Excellence in Ultra-intense Laser Science, Shanghai 201800, China

⁴e-mail: yjpeng@siom.ac.cn

⁵e-mail: lengyuxin@mail.siom.ac.cn

⁶e-mail: ruxinli@mail.shcnc.ac.cn

show less

DOI: 10.1364/PRJ.385190 Cite this Article Set citation alerts

Junyu Qian, Yujie Peng, Yanyan Li, Pengfei Wang, Beijie Shao, Zhe Liu, Yuxin Leng, Ruxin Li. Femtosecond mid-IR optical vortex laser based on optical parametric chirped pulse amplification[J]. Photonics Research, 2020, 8(3): 421 Copy Citation Text

EndNote(RIS)

BibTex

Plain Text

show less

Schematic of the 4 μm optical vortex OPCPA system. SPP, spiral phase plate; HWP, half-wave plate; TFP, thin film polarizer; DM, dichroic mirror; KTA, KTiOAsO4.

Fig. 1. Schematic of the 4 μm optical vortex OPCPA system. SPP, spiral phase plate; HWP, half-wave plate; TFP, thin film polarizer; DM, dichroic mirror; KTA, KTiOAsO4.

Download full size | View in the Article

Fig. 2. Amplified signal pulse energy after the second-stage OPA and compressor as a function of the second pump energy.

Download full size | View in the Article

Fig. 3. (a) Spatial profile of the 4 μm vortex output after SPP. (b) Interference fringes of vortex and plane beams. (c) Spatial profile of the amplified 4 μm vortex output. (d) Interference fringes of amplified vortex and plane beams.

Download full size | View in the Article

Fig. 4. Spectra of the optical vortex beam measured at four different quadrants after the compressor. The small figures and the serial numbers show the measured position of the spot.

Download full size | View in the Article

Fig. 5. (a) Measured and (b) reconstructed SHG-FROG traces. (c)–(f) Temporal profiles of the optical vortex beam measured at first to fourth quadrants.

Download full size | View in the Article