• Deutsch
  • English
  • Search
  • ABOUT US
    • Profile
    • Organizational Structure
      • Supervisory Board
      • Board of Directors and Management
      • Scientific Directorate
      • Industrial Advisory Board
    • Economic Development
    • Projects
    • Partner universities and institutes
    • Spin-off companies
    • Committees and associations
    • Compliance and anti-corruption policy
    • Contact and map
    • Terms and Conditions
  • DEPARTMENTS
    • Optical Components
      • Photonic Materials Group
      • Smart Optical Devices Group
      • Optical Coatings Group
      • Optics Integration Group
    • Laser Development
      • Fiber Optics Group
      • Optical Systems Group
      • Solid-State Lasers Group
      • Ultrafast Photonics Group
    • Industrial and Biomedical Optics
      • Biophotonics Group
      • Food and Farming Group
    • Production and Systems
      • Additive Manufacturing – Polymers and Multi-Materials Group
      • Glass Group
      • Composites Group
      • Laser Micromachining Group
    • Materials and Processes
      • Additive Manufacturing - Metals Group
      • Joining and Cutting of Metals Group
      • Machines and Controls Group
      • Underwater Technology Group
      • Safety Technology Group
    • Services
  • BUSINESS AREAS
    • Additive Manufacturing
    • Medical Technology
    • Space Technology
  • SERVICES
    • Manufacturing processes and materials processing
      • Laser processing of composite materials
      • Laser processing of metals
      • Additive Manufacturing
      • Laser-based glass processing
      • Laser processing of organic materials
    • Optical components
      • Coating and thin-film technology
      • Characterization
    • Analysis techniques
      • Sample preparation
      • Analysis methods
    • Laser development
      • Consulting & development
      • Characterization
    • Consulting
      • Consulting
      • Feasibility studies
      • Laser and occupational safety
  • PUBLICATIONS
    • Press Releases
    • News
    • LZH News Subscription
    • Dissertations
    • Scientific Publications
    • LZH Videos
    • Laser Safety Database
  • JOBS & EDUCATION
    • Open Positions
    • Internships, student papers and theses
Laser Zentrum Hannover e.V.
LZH Publications

Experimental Comparison of Fundamental Mode Content in Er:Yb-Codoped LMA Fibers With Multifilament- and Pedestal-Design Cores

  • Home
  • Experimental Comparison of Fundamental Mode Content in Er:Yb-Codoped LMA Fibers With Multifilament- and Pedestal-Design Cores
V. Kuhn, S. Unger, S. Jetschke, D. Kracht, J. Neumann, J. Kirchhof, P. Weßels
Experimental Comparison of Fundamental Mode Content in Er:Yb-Codoped LMA Fibers With Multifilament- and Pedestal-Design Cores
Journal of Lightwave Technology 22 (28), 3212–3219 (2010)
Publication type: Journal Article (reviewed)
DOI: 10.1109/JLT.2010.2088378

Abstract

We report on fundamental mode content measurements performed on single-frequency large mode area fiber amplifiers based on Er:Yb-codoped multifilament-core (MFC) and step-index pedestal-design fibers. The mode content of the amplifier output was analyzed with respect to free-space TEM modes using a nonconfocal scanning ring cavity. At power levels of several watts, the commercial step-index pedestal-design fibers with respective core diameters of 23 and 25 m showed a mode content exceeding 80%. However, a mode content of up to 95% could be obtained with an MFC fiber also with larger core diameter of 31/28 m in hexagonal shape. To the best of our knowledge, we utilized the nonconfocal scanning ring cavity technique for the first time in the wavelength region of 1.5 m and additionally for the first time on fibers with pedestal as well as MFC design.

Social Networks

  • Twitter
  • RSS

 

  • ABOUT US
    • Profile
    • Organizational Structure
      • Supervisory Board
      • Board of Directors and Management
      • Scientific Directorate
      • Industrial Advisory Board
    • Economic Development
    • Projects
    • Partner universities and institutes
    • Spin-off companies
    • Committees and associations
    • Compliance and anti-corruption policy
    • Contact and map
    • Terms and Conditions
  • DEPARTMENTS
    • Optical Components
      • Photonic Materials Group
      • Smart Optical Devices Group
      • Optical Coatings Group
      • Optics Integration Group
    • Laser Development
      • Fiber Optics Group
      • Optical Systems Group
      • Solid-State Lasers Group
      • Ultrafast Photonics Group
    • Industrial and Biomedical Optics
      • Biophotonics Group
      • Food and Farming Group
    • Production and Systems
      • Additive Manufacturing – Polymers and Multi-Materials Group
      • Glass Group
      • Composites Group
      • Laser Micromachining Group
    • Materials and Processes
      • Additive Manufacturing - Metals Group
      • Joining and Cutting of Metals Group
      • Machines and Controls Group
      • Underwater Technology Group
      • Safety Technology Group
    • Services
  • BUSINESS AREAS
    • Additive Manufacturing
    • Medical Technology
    • Space Technology
  • SERVICES
    • Manufacturing processes and materials processing
      • Laser processing of composite materials
      • Laser processing of metals
      • Additive Manufacturing
      • Laser-based glass processing
      • Laser processing of organic materials
    • Optical components
      • Coating and thin-film technology
      • Characterization
    • Analysis techniques
      • Sample preparation
      • Analysis methods
    • Laser development
      • Consulting & development
      • Characterization
    • Consulting
      • Consulting
      • Feasibility studies
      • Laser and occupational safety
  • PUBLICATIONS
    • Press Releases
    • News
    • LZH News Subscription
    • Dissertations
    • Scientific Publications
    • LZH Videos
    • Laser Safety Database
  • JOBS & EDUCATION
    • Open Positions
    • Internships, student papers and theses

Contact

Laser Zentrum Hannover e.V.
Hollerithallee 8
30419 Hannover
Germany
Map & Hotel
Phone:
+49 511 2788-0
Fax:
+49 511 2788-100
E-Mail:
info@lzh.de
  • Privacy statement
  • Data Protection Officer
  • Imprint
  • Contact & Map

Copyright ©2021 Laser Zentrum Hannover e.V. All Rights Reserved.