基于啁啾补偿的自相似脉冲压缩光栅对的设计

李沐霖; 张巧芬; 史圣达; 庞亮雨; 高梓皓

doi:10.13756/j.gtxyj.2021.04.011

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基于啁啾补偿的自相似脉冲压缩光栅对的设计

光电器件研究与应用

- 基于啁啾补偿的自相似脉冲压缩光栅对的设计
- Design of Self-similar Pulse Compression Grating Pair based on Chirp Compensation
- 光通信研究 2021年第4期页码：56-60
- 作者机构：
  
  a.广东工业大学　机电工程学院，广州　510006
  b.广东工业大学　精密微电子制造技术重点实验室，广州　510006
- 作者简介：
  
  李沐霖（1997-），男，湖北黄冈人。硕士，主要研究方向为导波光学与光通信技术。
  张巧芬，副教授。E-mail：zhqf@gdut.edu.cn
- 基金信息：
  
  国家自然科学基金资助项目(61705045)
- DOI：10.13756/j.gtxyj.2021.04.011
  中图分类号： O437
- 纸质出版日期：2021-08-10，
  
  收稿日期：2020-09-03，
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李沐霖, 张巧芬, 史圣达, 等. 基于啁啾补偿的自相似脉冲压缩光栅对的设计[J]. 光通信研究, 2021,(4):56-60.

LI Mu-lin, ZHANG Qiao-fen, SHI Sheng-da, et al. Design of Self-similar Pulse Compression Grating Pair based on Chirp Compensation[J]. Study on Optical Communications, 2021,(4):56-60.
李沐霖, 张巧芬, 史圣达, 等. 基于啁啾补偿的自相似脉冲压缩光栅对的设计[J]. 光通信研究, 2021,(4):56-60. DOI： 10.13756/j.gtxyj.2021.04.011.

LI Mu-lin, ZHANG Qiao-fen, SHI Sheng-da, et al. Design of Self-similar Pulse Compression Grating Pair based on Chirp Compensation[J]. Study on Optical Communications, 2021,(4):56-60. DOI： 10.13756/j.gtxyj.2021.04.011.

摘要

为了获取优质的超短脉冲光源，文章将自相似脉冲与光栅对结合，通过数值模拟方法详细分析了自相似脉冲的演化和压缩过程。首先将半高全宽（FWHM）为1 ps、能量为45 pJ的高斯脉冲入射到色散渐减光纤中，产生具有强线性啁啾的自相似脉冲，然后利用光栅对对自相似脉冲进行啁啾补偿压缩，最终得到FWHM为80 fs、峰值功率为507.6 W的超短脉冲输出，压缩品质参量

为0.96，压缩因子为12.5。在此基础上，文章又分析了色散渐减光纤中的三阶色散对光栅对压缩质量的影响，发现随着三阶色散的增加，压缩脉冲品质会显著降低。研究结果表明，当系统中三阶色散效应较小时，利用自相似脉冲与光栅对可得到高功率的超短脉冲。这一结果对超短脉冲的获取是有帮助的。

Abstract

In order to obtain a high-quality ultrashort pulse light source

we combine the self-similar pulse with the grating pair

and analyze the evolution and compression process of the self-similar pulse in detail through a numerical simulation method. We first launch the Full Width at Half Maximum (FWHM) of 1 ps

energy of 45 pJ Gaussian pulses into a dispersion decreasing fiber to generate the chirp self-similar pulse with strong linear characteristic. Then we use the grating self-similar pulse chirp compensation compressor to obtained an ultrashort pulse with FWHM of 80 fs and peak power of 507.6 W. The compression quality parameter

is 0.96

and the compression factor is 12.5. On this basis

we analyze the influence of the third-order dispersion in the declining fiber on the compression quality of the grating

and find that as the third-order dispersion increases

the compressed pulse quality will be significantly reduced. The results show that when the third-order dispersion effect in the system is small

high-power ultrashort pulses can be obtained by using self-similar pulses and grating pairs. This result is helpful for the acquisition of ultrashort pulses.

关键词

自相似脉冲光栅对色散渐减光纤啁啾补偿三阶色散

Keywords

self-similar pulsegrating pairdispersion-decreasing fiberchirp compensationthird-order dispersion

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