Femtosecond pulse delivery using a chirped long-period grating of multi-mode fiber for mode conversion

被引：5

作者：

Yao, J. ^{[1
]}

Zhan, L. ^{[1
]}

Wang, Y. X. ^{[1
]}

Li, H. G. ^{[1
]}

Luo, S. Y. ^{[1
]}

Xia, Y. X. ^{[1
]}

机构：

[1] Shanghai Jiao Tong Univ, Dept Phys, State Key Lab Adv Opt Commun Syst & Networks, Shanghai 200240, Peoples R China

来源：

JOURNAL OF MODERN OPTICS | 2010年 / 57卷 / 06期

基金：

中国国家自然科学基金;

关键词：

long-period fiber grating; fiber grating; multi-mode fiber; mode conversion; femtosecond pulse delivery; pulse propagation; temporal soliton; DISTORTION-FREE DELIVERY; ALL-FIBER; PROPAGATION; SENSITIVITY; LASER;

D O I：

10.1080/09500341003714130

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

A period-chirped long-period fiber grating (CLPFG), using ordinary multi-mode fiber (MMF), for broadband mode conversion (60 nm bandwidth of coupling efficiency >90%) has been proposed. Through using such a MMF-CLPFG, a broad-spectrum pulse can be converted into LP02 for femtosecond pulse distortion-free delivery in MMF. The simulation shows that the pulse suffers less nonlinear distortion than that in a single-mode fiber. In addition, the negative pre-chirp introduced by MMF-CLPFG can offset the linear and positive SPM-induced frequency chirp and thus compress the pulse. Using this scheme, an initial 18 kW peak power 75 fs pulse distortion-free delivery in MMF has been numerically demonstrated.

引用

页码：485 / 491

页数：7

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