Nanoimprinting and tapering of chalcogenide photonic crystal fibers for cascaded supercontinuum generation

被引：16

作者：

Petersen, Christian R. ^{[1
,6
]}

Lotz, Mikkel B. ^{[2
]}

Woyessa, Getinet ^{[1
]}

Ghosh, Amar N. ^{[3
]}

Sylvestre, Thibaut ^{[3
]}

Brilland, Laurent ^{[4
]}

Troles, Johann ^{[5
]}

Jakobsen, Mogens H. ^{[2
]}

Taboryski, Rafael ^{[2
]}

Bang, Ole ^{[1
,6
,7
]}

机构：

[1] Tech Univ Denmark, DTU Foton, DK-2800 Lyngby, Denmark

[2] Tech Univ Denmark, DTU Nanolab, DK-2800 Lyngby, Denmark

[3] Univ Bourgogne Franche Comte, CNRS, UMR6174, Inst FEMTO ST, Besancon, France

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

[5] Univ Rennes 1, ISCR UMR CNRS 6226, Glasses & Ceram Grp, F-35042 Rennes, France

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

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

来源：

OPTICS LETTERS | 2019年 / 44卷 / 22期

基金：

欧洲研究理事会;

关键词：

BROAD-BAND ANTIREFLECTION; MOTH-EYE STRUCTURES; POWER; GLASS; BANDWIDTH; FLUORIDE;

D O I：

10.1364/OL.44.005505

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

Improved long-wavelength transmission and supercontinuum (SC) generation is demonstrated by antireflective (AR) nanoimprinting and tapering of chalcogenide photonic crystal fibers (PCFs). Using a SC source input spanning from 1 to 4.2 mu m, the total transmission of a 15 mu m core diameter PCF was improved from similar to 53% to similar to 74% by nanoimprinting of AR structures on both input and output facets of the fiber. Through a combined effect of reduced reflection and redshifdng of the spectrum to 5 mu m, the relative transmission of light >3.5 mu m in the same fiber was increased by 60.2%. Further extension of the spectrum to 8 mu m was achieved using tapered fibers. The spectral broadening dynamics and output power were investigated using different taper parameters and pulse repetition rates. (C) 2019 Optical Society of America

引用

页码：5505 / 5508

页数：4

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