Frequency conversion from near-infrared to mid-infrared in highly nonlinear optical fibres

被引：4

作者：

Ducros, Nicolas ^{[1
]}

Morin, Franck ^{[2
]}

Cook, Kevin ^{[3
]}

Labruyere, Alexis ^{[1
]}

Fevrier, Sebastien ^{[1
]}

Humbert, Georges ^{[1
]}

Druon, Frederic ^{[2
]}

Hanna, Marc ^{[2
]}

Georges, Patrick ^{[2
]}

Canning, J. ^{[3
]}

Buczynski, Ryszard ^{[4
]}

Pysz, Darius ^{[5
]}

Stepien, Ryszard ^{[5
]}

机构：

[1] Xlim UMR CNRS 6172, 123 Ave A Thomas, F-87060 Limoges, France

[2] Univ Paris Sud, Inst Opt, Lab Charles Fabry, F-91127 Palaiseau, France

[3] Univ Sydney, Sch Chem, Interdisciplinary Photon Labs, Sydney, NSW 2006, Australia

[4] Warsaw Univ, Fac Phys, PL-02093 Warsaw, Poland

[5] Inst Elect Mat Technol, Glass Lab, PL-01919 Warsaw, Poland

来源：

PHOTONIC CRYSTAL FIBERS IV | 2010年 / 7714卷

关键词：

Infrared material; nonlinear optics; photonic crystal fibre; Raman fibre laser; SUPERCONTINUUM GENERATION; CHALCOGENIDE; LASER; POWER;

D O I：

10.1117/12.854379

中图分类号：

O7 [晶体学];

学科分类号：

0702 ; 070205 ; 0703 ; 080501 ;

摘要：

Chalcogenide or heavy metal oxide glasses are well known for their good transparency in the mid-infrared (MIR) domain as well as their high nonlinear refractive index (n(2)) tens to hundreds times higher than that of silica. We have investigated the nonlinear frequency conversion processes, based upon either stimulated Raman scattering (SRS) or soliton fission and soliton self-frequency shift (SSFS) in fibres made up with such highly nonlinear infrared transmitting glasses. First, SRS has been investigated in a chalcogenide As2S3 step index fibre. In the single pass configuration, under quasi continuous wave 1550 nm pumping, Raman cascade up to the forth Stokes order has been obtained in a 3 m long piece of fibre. The possibility to build a Raman laser thanks to in-fibre written Bragg gratings has also been investigated. A 5 dB Bragg grating has been written successfully in the core. Then, nonlinear frequency conversion in ultra-short pulse regime has been studied in a heavy metal oxide (lead-bismuth-gallium ternary system) glass photonic crystal fibre. Broadband radiation, from 800 nm up to 2.8 mu m, has been obtained by pumping an 8 cm long piece of fibre at 1600 nm in sub-picosecond pulsed regime. The nonlinear frequency conversion process was assessed by numerical modelling taking into account the actual fibre cross-section as well as the measured linear and nonlinear parameters and was found to be due to soliton fission and Raman-induced SSFS.

引用

页数：8

共 24 条

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