Pulse compression in graphene-clad microfiber as a saturable absorber in mode-locked fiber lasers: modeling and analysis

被引：7
作者：
Ashoori, Vahid [1 ]
Shayganmanesh, Mahdi [1 ]
机构：
[1] Iran Univ Sci & Technol, Dept Phys, Tehran, Iran
来源：
APPLIED PHYSICS B-LASERS AND OPTICS | 2020年 / 126卷 / 01期
关键词：
GENERATION; LOCKING; FEMTOSECOND;
D O I：
10.1007/s00340-019-7344-3
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
In this paper, the outstanding influence of self-phase modulation (SPM) induced by thermal nonlinear refractive index (TNRI) in graphene-clad microfiber on laser pulse width, during the mode-locking process, is demonstrated for the first time. To meet the requirements, analytical relations for effective absorption coefficient of graphene-clad microfiber (GCM), thermal nonlinear refractive index and self-phase-modulation parameter are presented. Improvement on pulse compression process by optimizing the GCM parameters such as microfiber diameter and graphene length is studied by the aid of Haus master equation.
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页数：9
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