Ultra-high repetition rate absorption spectroscopy with low noise supercontinuum radiation generated in an all-normal dispersion fibre

被引：26

作者：

Dupont, S. ^{[1
]}

Qu, Z. ^{[2
]}

Kiwanuka, S-S ^{[2
]}

Hooper, L. E. ^{[3
]}

Knight, J. C. ^{[3
]}

Keiding, S. R. ^{[1
]}

Kaminski, C. F. ^{[2
]}

机构：

[1] Aarhus Univ, Dept Chem, DK-8000 Aarhus C, Denmark

[2] Univ Cambridge, Dept Chem Engn & Biotechnol, Cambridge CB2 3RA, England

[3] Univ Bath, Dept Phys, Ctr Photon & Photon Mat, Bath BA2 7AY, Avon, England

来源：

LASER PHYSICS LETTERS | 2014年 / 11卷 / 07期

基金：

英国工程与自然科学研究理事会;

关键词：

optical solitons; frequency conversion; laser spectroscopy; molecular spectra; other fibre-optical devices; PHOTONIC CRYSTAL FIBER;

D O I：

10.1088/1612-2011/11/7/075601

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We report the use of a dispersed supercontinuum generated in an all-normal-dispersion fibre to record low-noise spectra from atmospheric molecules at least an order of magnitude faster than has been previously reported. Supercontinuum generation in standard, anomalous dispersion photonic-crystal fibres is inherently connected with large pulse-to-pulse fluctuations resulting in detrimental consequences for high resolution spectroscopy if temporal averaging is not permitted. Replacing the standard photonic-crystal fibre (PCF) with a specially designed all-normal dispersion PCF we find that a substantially superior noise performance is achieved and present its use for high repetition rate absorption spectroscopy where spectra covering hundreds of nm in spectral bandwidth can be captured of gases at hundreds of kHz repetition rates.

引用

页数：7

共 30 条

[1] Supercontinuum generation in ZBLAN fibers-detailed comparison between measurement and simulation [J].