Direct core-selective inscription of Bragg grating structures in seven-core optical fibers by femtosecond laser pulses

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Abstract

We present the results on fiber Bragg gratings inscription with femtosecond laser pulses in a Fibercore SM- 7C1500(6.1/125) 7-core single-mode optical fiber. By focusing femtosecond pulses into the volume of the fiber and by controlling the transverse spatial position of the pulse absorption region we selectively modify the individual fiber cores of the fiber and at the same time specify geometry of the each grating. We show that different longitudinal profiles of coupling coefficient can be realized for the FBG, including uniform, chirped and apodized ones.

Original languageEnglish
Title of host publicationMicro-Structured and Specialty Optical Fibres VI
EditorsKyriacos Kalli, Alexis Mendez, Pavel Peterka
PublisherSPIE
Number of pages7
ISBN (Electronic)9781510627246
DOIs
Publication statusPublished - 1 Jan 2019
EventMicro-Structured and Specialty Optical Fibres VI 2019 - Prague, Czech Republic
Duration: 3 Apr 20194 Apr 2019

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
Volume11029
ISSN (Print)0277-786X
ISSN (Electronic)1996-756X

Conference

ConferenceMicro-Structured and Specialty Optical Fibres VI 2019
CountryCzech Republic
CityPrague
Period03.04.201904.04.2019

Keywords

  • Femtosecond laser micromachining
  • Fiber Bragg grating
  • Multicore fiber
  • Refractive index change
  • multicore fiber
  • SINGLE
  • femtosecond laser micromachining
  • fiber Bragg grating
  • refractive index change

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