Enhanced Kerr nonlinearity in sub-wavelength diameter As2Se3 chalcogenide fiber tapers

被引：180

作者：

Maegi, E. C. ^{[1
]}

Fu, L. B. ^{[1
]}

Nguyen, H. C. ^{[1
]}

Lamont, M. R. E. ^{[1
]}

Yeom, D. I. ^{[1
]}

Eggleton, B. J. ^{[1
]}

机构：

[1] Univ Sydney, Sch Phys, Ctr Ultrahigh Bandwidth Devices Opt Syst, Sydney, NSW 2006, Australia

来源：

OPTICS EXPRESS | 2007年 / 15卷 / 16期

关键词：

D O I：

10.1364/OE.15.010324

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We experimentally demonstrate enhanced Kerr nonlinear effects in highly nonlinear As2Se3 chalcogenide fiber tapered down to sub wavelength waist diameter of 1.2 mu m. Based on self phase modulation measurements, we infer an enhanced nonlinearity of 68 W(-1)m(-1). This is 62,000 times larger than in standard silica singlemode fiber, owing to the 500 times larger n(2) and almost 125 times smaller effective mode area. We also consider the potential to exploit the modified dispersion in these tapers for ultra-low threshold supercontinuum generation. (c) 2007 Optical Society of America.

引用

页码：10324 / 10329

页数：6

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