Chinese Optics Letters, Volume. 18, Issue 2, 021202(2020)

All-reflective self-referenced spectral interferometry for single-shot measurement of few-cycle femtosecond pulses in a broadband spectral range Editors' Pick

Zhe Si1,2, Xiong Shen2,3, Jingxin Zhu2,3, Lei Lin2,3, Lihua Bai1, and Jun Liu2,3、*
Author Affiliations
  • 1Department of Physics, Shanghai University, Shanghai 200444, China
  • 2State Key Laboratory of High Field Laser Physics, Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai 201800, China
  • 3Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing 100049, China
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    Figures & Tables(4)
    Optical layout of the proposed AR-TG-SRSI. FH1 and FH2, plate with four equal-size holes; a, L-shaped metal-coated plane mirror; b, uncoated parallel mirror with fixed time-delay; SM, metal-coated mirror with a 3 mm diameter hole; CM1 and CM2, concave lens, f=100 mm; KP, third-order nonlinear medium, 0.15 mm thick fused silica; A, iris; CM3, concave lens, f=75 mm; SP, spectrometer.
    (a) Sketch of the AR-TG-SRSI. (b) The schematic diagram. Size: 293 mm × 170 mm × 83 mm [their dimensions are specified in the brackets with units in millimeters (mm)]. (c) A photo of the AR device on an A4 paper.
    Experimental setup.
    (a), (d) Spectral intensity of the unknown input pulses (blue dash-dotted curve), the TG reference pulses (red solid curve), and the interference between them (black solid curve). (b), (e) Measured spectra of the unknown pulses (black solid curve), retrieved spectra of the unknown pulses (red dash-dotted curve, and retrieved spectral phases (orange solid curve). (c), (f) Retrieved temporal profile (red solid curve) and retrieved temporal phase (orange dash-dotted curve) of the unknown pulses.
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    Zhe Si, Xiong Shen, Jingxin Zhu, Lei Lin, Lihua Bai, Jun Liu. All-reflective self-referenced spectral interferometry for single-shot measurement of few-cycle femtosecond pulses in a broadband spectral range[J]. Chinese Optics Letters, 2020, 18(2): 021202

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    Paper Information

    Category: Optical Sensing, Measurements, and Metrology

    Received: Aug. 26, 2019

    Accepted: Nov. 7, 2019

    Published Online: Dec. 30, 2019

    The Author Email: Jun Liu (jliu@siom.ac.cn)

    DOI:10.3788/COL202018.021202

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