All-Fiber Wideband Supercontinuum Generation in Short Hybrid Highly Nonlinear Fibers With a Femtosecond Erbium-Doped Fiber Laser

被引：2

作者：

Zhang, Shuang ^{[1
]}

Qiao, Hao ^{[1
]}

Zhang, Tao ^{[1
]}

Zhou, Min ^{[1
]}

Xu, Xinye ^{[1
,2
]}

机构：

[1] East China Normal Univ, State Key Lab Precis Spect, Shanghai, Peoples R China

[2] Shanghai Res Ctr Quantum Sci, Shanghai, Peoples R China

来源：

FRONTIERS IN PHYSICS | 2022年 / 10卷

基金：

中国国家自然科学基金;

关键词：

ultrashort pulse; supercontinuum generation; highly nonlinear fiber; group velocity dispersion; hybrid fiber; REPETITION-RATE; MU-M; DISPERSION; EFFICIENCY; PULSES; MHZ;

D O I：

10.3389/fphy.2022.915266

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Wideband supercontinuum (SC) generation has attracted considerable attention due to its various practical applications in many fields. We report on all-fiber SC generation in hybrid highly nonlinear fibers (HNLFs) pumped with a femtosecond erbium-doped fiber laser (EDFL). Based on the nonlinear polarization rotation (NPR) technique, the EDFL is compactly constructed with a hybrid device integrating a wavelength-division multiplexing (WDM) coupler, a tap coupler, and a polarization-sensitive isolator. The SC emission in HNLFs with different dispersions is characterized and the optimum length of HNLF is found. The SC in the hybrid HNLF, constructed by two sections of HNLFs with positive and zero dispersions, could approximately span an octave spanning in the 20 dB bandwidth. Our system suggests an inexpensive, effective and compact construction for SC generation.

引用

页数：8

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