Chalcogenide-glass polarization-maintaining photonic crystal fiber for mid-infrared supercontinuum generation

被引：34

作者：

Ghosh, A. N. ^{[1
]}

Meneghetti, M. ^{[2
]}

Petersen, C. R. ^{[3
,4
,6
]}

Bang, O. ^{[3
,4
,6
]}

Brilland, L. ^{[5
]}

Venck, S. ^{[5
]}

Troles, J. ^{[2
]}

Dudley, J. M. ^{[1
]}

Sylvestre, T. ^{[1
]}

机构：

[1] Univ Bourgogne Franche Comte, Inst FEMTO ST, CNRS, UMR 6174, Besancon, France

[2] Univ Rennes, CNRS, ISCR UMR 6226, F-35000 Rennes, France

[3] Tech Univ Denmark, DTU Foton, Dept Photon Engn, Lyngby, Denmark

[4] NORBLIS IVS, Virumgade 35D, DK-2830 Virum, Denmark

[5] SelenOptics, 263 Ave Gal Leclerc,Campus Beaulieu, F-35700 Rennes, France

[6] NKT AS, Blokken 84, DK-3460 Birkerod, Denmark

来源：

JOURNAL OF PHYSICS-PHOTONICS | 2019年 / 1卷 / 04期

关键词：

nonlinear optics; fiber optics; photonic crystal fibers; supercontinuum (SC) generation; mid-infrared (MIR) photonics; chalcogenide glass; OPTICAL COHERENCE TOMOGRAPHY; MU-M; INFRARED SUPERCONTINUUM; ABSORPTION-SPECTROSCOPY; BANDWIDTH; TRANSMISSION; FABRICATION; FLUORIDE;

D O I：

10.1088/2515-7647/ab3b1e

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

In this paper, we report the design and fabrication of a highly birefringent polarization-maintaining photonic crystal fiber made from chalcogenide glass, and its application to linearly-polarized supercontinuum generation in the mid-infrared region. The fiber was drawn using the casting method from As38Se62 glass which features a transmission window from 2 to 10 mu m and a high nonlinear index of 1.13 x 10(-17 ) m(2) W-1. It has a zero-dispersion wavelength (ZDW) at 4.56 mu m for the fast axis and 4.68 mu m for the slow axis and, at average ZDW, a large birefringence of 6.5 x 10(-4) and consequently strong polarization maintaining properties are expected. Using this fiber, we experimentally demonstrate supercontinuum generation spanning from 3.1 to 6.02 mu m and 3.33-5.78 mu m using femtosecond pumping at 4 mu m and 4.53 mu m, respectively. We further investigate the supercontinuum bandwidth versus the input pump polarization angle and we show very good agreement with numerical simulations of the two-polarization model based on two coupled generalized nonlinear Schrodinger equations.

引用

页数：11