Single-polarization single-transverse-mode rod-type photonic crystal fiber with mode-field-area of 2300 μm2

O. Schmidt, J. Rothhardt, T. Eidam, F. Röser, J. Limpert, A. Tünnermann, K. P. Hansen, C. Jakobsen, Jes Broeng

Research output: Contribution to journalConference articleResearchpeer-review


We report on an ytterbium-doped single-transverse-mode rod-type photonic crystal fiber that combines the advantages of low nonlinearity and intrinsic polarization stability. The mode-field-area of the fundamental mode is as large as 2300 (im . An output power of up to 163 W with a degree of polarization better than 85% has been extracted from a simple fiber laser setup without any additional polarizing element within the cavity than the fiber itself. The beam quality has been characterized by a M value of 1.2. The single-polarization window ranges from 1030 to 1080 nm, hence possesses an excellent overlap with the gain profile of ytterbium-doped silica fibers. To the best of our knowledge this fiber design has the largest modefield-diameter ever reported for polarizing or even polarization maintaining rare-earth-doped double-clad fibers.
Original languageEnglish
JournalProceedings of SPIE, the International Society for Optical Engineering
Pages (from-to)xxxiii-xxxiv
Number of pages2
Publication statusPublished - 2008
Externally publishedYes
EventFiber Lasers V: Technology, Systems, and Applications - San Jose, California, USA
Duration: 1 Jan 2008 → …


ConferenceFiber Lasers V: Technology, Systems, and Applications
CitySan Jose, California, USA
Period01/01/2008 → …

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