Mid-infrared supercontinuum generation in As2S3-silica "nano-spike" step-index waveguide

被引：89

作者：

Granzow, N. ^{[1
]}

Schmidt, M. A. ^{[1
,7
]}

Chang, W. ^{[1
]}

Wang, L. ^{[1
]}

Coulombier, Q. ^{[2
]}

Troles, J. ^{[3
]}

Toupin, P. ^{[3
]}

Hartl, I. ^{[4
]}

Lee, K. F. ^{[4
]}

Fermann, M. E. ^{[4
]}

Wondraczek, L. ^{[5
]}

Russell, P. St J. ^{[1
,6
]}

机构：

[1] Max Planck Inst Sci Light, D-91058 Erlangen, Germany

[2] Univ Lille 1, Lab PhLAM, UMR8523, F-59658 Villeneuve Dascq, France

[3] Univ Rennes 1, F-35042 Rennes, France

[4] IMRA Amer Inc, Ann Arbor, MI 48105 USA

[5] Univ Jena, Otto Schott Inst, D-07743 Jena, Germany

[6] Univ Erlangen Nurnberg, Dept Phys, D-91058 Erlangen, Germany

[7] Inst Photon Technol, D-07745 Jena, Germany

来源：

OPTICS EXPRESS | 2013年 / 21卷 / 09期

关键词：

PHOTONIC CRYSTAL FIBER; OPTICAL COHERENCE TOMOGRAPHY; CONTINUUM GENERATION; CHALCOGENIDE GLASSES; MU-M; SYSTEM; COMB; NM;

D O I：

10.1364/OE.21.010969

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

Efficient generation of a broad-band mid-infrared supercontinuum spectrum is reported in an arsenic trisulphide waveguide embedded in silica. A chalcogenide "nano-spike", designed to transform the incident light adiabatically into the fundamental mode of a 2-mm-long uniform section 1 mu m in diameter, is used to achieve high launch efficiencies. The nano-spike is fully encapsulated in a fused silica cladding, protecting it from the environment. Nano-spikes provide a convenient means of launching light into sub-wavelength scale waveguides. Ultrashort (65 fs, repetition rate 100 MHz) pulses at wavelength 2 mu m, delivered from a Tm-doped fiber laser, are launched with an efficiency similar to 12% into the sub-wavelength chalcogenide waveguide. Soliton fission and dispersive wave generation along the uniform section result in spectral broadening out to almost 4 mu m for launched energies of only 18 pJ. The spectrum generated will have immediate uses in metrology and infrared spectroscopy. (C) 2013 Optical Society of America

引用

页码：10969 / 10977

页数：9

共 36 条

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