Flat supercontinuum generation in cascaded fibers pumped by a continuous wave laser

被引：24

作者：

Guo, Chunyu ^{[1
]}

Ruan, Shuangchen ^{[1
]}

Yan, Peiguang ^{[1
]}

Pan, Erming ^{[1
]}

Wei, Huifeng ^{[2
]}

机构：

[1] Shenzhen Univ, Sch Elect Sci & Technol, Shenzhen 518060, Guangdong, Peoples R China

[2] Yangtze Opt Fibre & Cable Co Ltd, Wuhan 430073, Hubei, Peoples R China

来源：

OPTICS EXPRESS | 2010年 / 18卷 / 11期

关键词：

PHOTONIC CRYSTAL FIBERS; HIGH-POWER; DISPERSION WAVELENGTHS; CW;

D O I：

10.1364/OE.18.011046

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We realize the flattening and extending of a CW-pumped supercontinuum with a high spectral intensity peak at the pump region. It is achieved by cascading a long zero-dispersion wavelength high-nonlinearity fiber with the output photonic crystal fiber, in order to improve the conversion efficiency of residual pump energy to long-wavelength continuum based on the effect of cascaded stimulated Raman scattering. Compared with the non-flattened continuum of 10.3 W with 3 dB bandwidth of 62 nm and 10 dB bandwidth of 360 nm, a flat continuum of 8 W with 3 dB spectral range of 340 nm and 10 dB spectral range of 420 nm is obtained. The spectral peak at the pump region decreases more than 5 dB, below the level of long-wavelength spectral intensity. Also, the long-wavelength edge has been extended by 60 nm. (C) 2010 Optical Society of America

引用

页码：11046 / 11051

页数：6

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