Mode selective fiber Bragg gratings

Jens U. Thomas, Christian Voigtländer, Stefan Nolte, Andreas Tünnermann, Nemanja Jovanovic, Graham D. Marshall, Michael J. Withford, Michael Steel

Research output: Chapter in Book/Report/Conference proceedingConference proceeding contribution

16 Citations (Scopus)
15 Downloads (Pure)

Abstract

Focussing ultrashort laser pulses allows for inscribing fiber Bragg gratings (FBGs) directly into rare earth doped fiber cores - without prior photosensitivity treatment. High reflective FBGs can be written into active Large Mode Area (LMA) Fibers with 20 micron core diameter using a phase mask scanning technique. Here, we demonstrate fiber Bragg gratings (FBGs), which cover only a fraction of the core. With this additional degree of freedom it is possible to taylor the reflectivity of individual modes. We show for example how those FBGs can be used in few mode LMA fibers to suppress reflections into higher order modes.

Original languageEnglish
Title of host publicationFrontiers in Ultrafast Optics: Biomedical, Scientific, and Industrial Applications X
EditorsAlexander Heisterkamp, Joseph Neev, Stefan Nolte, Rick P. Trebino
Place of PublicationWashington, DC
PublisherSPIE
Pages1-9
Number of pages9
Volume7589
ISBN (Print)9780819479853
DOIs
Publication statusPublished - 2010
EventFrontiers in Ultrafast Optics: Biomedical, Scientific, and Industrial Applications X - San Francisco, CA, United States
Duration: 24 Jan 201026 Jan 2010

Other

OtherFrontiers in Ultrafast Optics: Biomedical, Scientific, and Industrial Applications X
CountryUnited States
CitySan Francisco, CA
Period24/01/1026/01/10

Bibliographical note

Copyright 2010 Society of Photo Optical Instrumentation Engineers. One print or electronic copy may be made for personal use only. Systematic reproduction and distribution, duplication of any material in this paper for a fee or for commercial purposes, or modification of the content of the paper are prohibited.

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