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Dissipative Kerr solitons in optical microresonators with raman effect and third-order dispersion

Chinese Physics B 2021年第5期30卷 395-400页

作者：吴超华方致伟樊景涛陈刚程亚 State Key Laboratory of Quantum Optics and Quantum Optics Devices Institute of Laser SpectroscopyShanxi UniversityTaiyuan 030006China Collaborative Innovation Center of Extreme Optics Shanxi UniversityTaiyuan 030006China The Extreme Optoelectromechanics Laboratory(XXL) School of Physics and Materials ScienceEast China Normal UniversityShanghai 200241China Collaborative Innovation Center of Light Manipulations and Applications Shandong Normal UniversityJinan 250358China

Using the mean-field normalized Lugiato-Lefever equation,we theoretically investigate the dynamics of cavity soliton and comb generation in the presence of raman effect and the third-order dispersion.Both of them can induce the temporal drift and frequency shift.Based on the moment analysis method,we analytically obtain the temporal and frequency shift,and the results agree with the direct numerical simulation.Finally,the compensation and enhancement of the soliton spectral between the raman-induced self-frequency shift and soliton recoil are predicted.Our results pave the way for further understanding the soliton dynamics and spectral characteristics,and providing an effective route to manipulate frequency comb.

关键词： dissipative Kerr soliton frequency comb raman effect dispersive wave

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Beam cleanup of the stimulated raman scattering in grade-index multi-mode fiber

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Chinese Optics Letters 2014年第A2期12卷 55-58页

作者：王文亮黄良金冷进勇郭少锋姜宗福 College of Optoelectric Science and Engineering National University of Defense Technology Changsha 410073 China

In order to study the beam cleanup effect of the stimulated raman scattering （SRS） in the graded-index multi-mode fiber （GIMF）, a continuous wave all-fiber laser at 1117.8 nm and a pulsed fiber amplifier at 1064 nm are built up as the seed and pump source in the raman fiber amplifier （RFA）. In unseeded SRS process, a pump beam with M^2x = 6.7 and M^2 = 6.7 is transferred into a Stokes beam with M^2x = 1.5 and M^2 = 1.7 in y y the multi-mode fiber with a 62.5 μm graded-index core （numerical aperture =0.29）. In the RFA, a seed light with M^2y = 6.7 and M^2y = 7.3 is amplified to a signal light with M^2x = 1.8 and M^2y = 2.0. The experimental y y results are explained by the simulation on the mode evolution during SRS procession and raman amplification in the GIMF. The results show that both the SRS and raman amplification effect in the GIMF have beam cleanup effect.

关键词： 060.2310 Fiber optics 060.4370 Nonlinear optics, fibers 190.5650 raman effect

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Ultra-broadband modulation instability gain characteristics in As_2S_3 and As_2Se_3 chalcogenide glass photonic crystal fiber

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Chinese Physics B 2016年第6期25卷 259-263页

作者：王河林吴彬王肖隆 Center for Optics and Optoelectronics Research Zhejiang University of Technology

Based on the designed As2Se3 and As2S3 chalcogenide glass photonic crystal fiber（PCF） and the scalar nonlinear Schrdinger equation,the effects of pump power and wavelength on modulation instability（MI） gain are comprehensively studied in the abnormal dispersion regime of chalcogenide glass PCF.Owing to high raman effect and high nonlinearity,ultra-broadband MI gain is obtained in chalcogenide glass PCF.By choosing the appropriate pump parameter,the MI gain bandwidth reaches 2738 nm for the As2Se3 glass PCF in the abnormal-dispersion region,while it is 1961 nm for the As2S3 glass PCF.

关键词： ultra-broadband modulation instability raman effect high nonlinearity chalcogenide glass photonic crystal fiber

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