Influencing Factors of Temporal Modes of Raman Photons in Long Optical Fibers

被引：1

作者：

Liu Nannan ^{[1
]}

Dou Zhenming ^{[1
]}

Jia Ruoyi ^{[1
]}

Zhao Yu ^{[1
]}

Ding Beibei ^{[1
]}

Hao Yunqi ^{[1
]}

Zhai Fengxiao ^{[1
]}

机构：

[1] Zhengzhou Univ Light Ind, Coll Phys & Elect Engn, Henan Key Lab Magnetoelect Informat Funct Mat, Zhengzhou 450001, Henan, Peoples R China

来源：

ACTA OPTICA SINICA | 2022年 / 42卷 / 09期

关键词：

nonlinear optics; Raman scattering; fiber; temporal modes; second-order correlation function; dispersion; self-phase modulation; QUANTUM; SCATTERING; NOISE;

D O I：

10.3788/AOS202242.0919001

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

Under the influence of loss, dispersion, and self-phase modulation, the second-order correlation function of spontaneous Raman scattering photon is calculated by piecewise analysis, and the time mode characteristics of spontaneous Raman scattering pumped by pulsed light in long optical fiber are studied. The results show that in the case of no dispersion and self-phase modulation, the second-order correlation function of spontaneous Raman scattering photon is not affected by pump loss, but is only determined by the ratio of pump pulse width to Raman photon coherence time. It has the same expression as the second-order correlation function of spontaneous parametric downconversion photons. In the case of dispersion and self-phase modulation, the change of pump pulse width caused by dispersion and self-phase modulation and the dispersion-induced temporal wall-off between pump light and Raman photons change the time mode of Raman photons. The second-order correlation function of spontaneous Raman scattering photons depends on the fiber loss coefficient, dispersion parameters and initial pump pulse width, which is no longer the same as that of spontaneous parametric down conversion photons.

引用

页数：9

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