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Chinese Journal of Lasers, Volume. 48, Issue 11, 1101001(2021)

Femtosecond Chirped Pulse Amplification System with Liquid Crystal Spatial Light Modulator for Spectral Modulation

Yufei Duan1,2, Feng Li1、*, Zhi Yang1, Qianglong Li1, Yang Yang1, Tianhao Wu1,2, Yishan Wang1, and Xiaojun Yang1、**
Author Affiliations
  • 1State Key Laboratory of Transient Optics and Photonics, Xi'an Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xi'an, Shaanxi 710119, China
  • 2University of Chinese Academy of Sciences, Beijing 100049, China
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    AbstractGet PDF(in Chinese)
    Figures&Tables (8)
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    References (20)
    Cited By (6)
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    Figures & Tables(8)
    Experimental setup of shaping-compression system

    Fig. 1. Experimental setup of shaping-compression system

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    Principle diagram of reflective liquid crystal spatial light modulator

    Fig. 2. Principle diagram of reflective liquid crystal spatial light modulator

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    Theoretical simulation by inverse operation. (a) Defined ideal spectral shape; (b) desired spectral shape obtained by inverse operation; (c) required two-dimensional grayscale map

    Fig. 3. Theoretical simulation by inverse operation. (a) Defined ideal spectral shape; (b) desired spectral shape obtained by inverse operation; (c) required two-dimensional grayscale map

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    Spectral shaping effects and corresponding grayscale maps. (a1)(a2) Flat-top type; (b1)(b2) center-suppression type; (c1)(c2) triangle type; (d1)(d2) continuous suppression type

    Fig. 4. Spectral shaping effects and corresponding grayscale maps. (a1)(a2) Flat-top type; (b1)(b2) center-suppression type; (c1)(c2) triangle type; (d1)(d2) continuous suppression type

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    Spectral comparison before and after amplification. (a) Before entering main amplification system; (b) after passing through main amplification system

    Fig. 5. Spectral comparison before and after amplification. (a) Before entering main amplification system; (b) after passing through main amplification system

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    Final spectral shape after modulation

    Fig. 6. Final spectral shape after modulation

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    Limited pulse duration comparison before and after modulation. (a) Before spectral modulation; (b) after spectral modulation

    Fig. 7. Limited pulse duration comparison before and after modulation. (a) Before spectral modulation; (b) after spectral modulation

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    • Table 1. Parameters of spatial light modulator

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      Table 1. Parameters of spatial light modulator

      ParameterContentParameterContent
      Modulation typeAmplitude modulation and phase modulationFilling factor87%
      LCD typeReflection typeOptical efficiency75%
      Gray type8 bit, 256 stepDamage threshold2W /cm2
      Number of liquidcrystals in LC-SLM1920×1080Data interfaceDigital visual interface
      Element diameter8.0 μmSpectral range420--1100 nm
      Incident angle of light and effective areaIncident angle of 0.69' and effective area of 15.36 mm×8.64 mmContrast of black colorand white color>2000∶1
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    Yufei Duan, Feng Li, Zhi Yang, Qianglong Li, Yang Yang, Tianhao Wu, Yishan Wang, Xiaojun Yang. Femtosecond Chirped Pulse Amplification System with Liquid Crystal Spatial Light Modulator for Spectral Modulation[J]. Chinese Journal of Lasers, 2021, 48(11): 1101001

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    Paper Information

    Category: laser devices and laser physics

    Received: Oct. 26, 2020

    Accepted: Dec. 23, 2020

    Published Online: May. 20, 2021

    The Author Email: Li Feng (lifeng@opt.ac.cn), Yang Xiaojun (yxj@opt.ac.cn)

    DOI:10.3788/CJL202148.1101001

    Topics

    laser devices and laser physics
    Lasers and Laser Optics
    Laser physics
    laser manufacturing
    Instrumentation, Measurement and Metrology