Mid-infrared supercontinuum generation in single mode fluoride fiber

Lai Liu, Guanshi Qin, Qijun Tian, Weiping Qin

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

2 Scopus citations

Abstract

We numerically investigate mid-infrared supercontinuum generation in single mode fluoride fiber pumped by 1.56μm femtosecond fiber lasers. To get high energy conversion efficiency in mid-infrared region, the ratio of power generated in 2.5 ~ 5 μm range to the total input power for supercontinuum generation is optimized by varying the pulse width, peak power and fiber length. The long wavelength edge of the supercontinuum spectrum can be extended to 5μm in a 9 cm long fluoride fiber pumped by a 1.56μm fiber laser with a pulse width of 200 fs and a peak power of 2 MW, and the corresponding ratio of power generated in 2.5 ~ 5 μm range to the total input power is about 29.6%. The spectral broadening is mainly caused by self-phase modulation, stimulated Raman scattering and four-wave mixing. The simulated results show that high energy conversion power supercontinuum light source in 2.5 ~ 5 μm range could be obtained in fluoride fibers pumped by 1.56μm femtosecond fiber lasers.

Original languageEnglish
Title of host publicationPhotonics and Optoelectronics Meetings (POEM) 2011
Subtitle of host publicationLaser and Terahertz Science and Technology
DOIs
StatePublished - 2012
Externally publishedYes
EventPhotonics and Optoelectronics Meetings (POEM) 2011: Laser and Terahertz Science and Technology - Wuhan, China
Duration: 2 Nov 20115 Nov 2011

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
Volume8330
ISSN (Print)0277-786X

Conference

ConferencePhotonics and Optoelectronics Meetings (POEM) 2011: Laser and Terahertz Science and Technology
Country/TerritoryChina
CityWuhan
Period2/11/115/11/11

Keywords

  • Fiber design and fabrication
  • Fibers
  • Nonlinear optics
  • Supercontinuum generation

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