We present a design of a photonic crystal fiber for high power laser and amplifier applications. Our fiber comprises a core with a diameter larger than 60 mu m and exhibits single mode operation when the fiber is bent around a 10 cm radius at a wavelength of 1064 nm. Single mode guidance is enforced by the high loss of higher order modes which exceeds 80 dB/m whereas the loss of the fundamental mode (FM) is lower than 0.03 dB/m. The fiber can therefore be considered as an active medium for compact high power fiber lasers and amplifiers with a nearly diffraction limited beam output. We also analyze our fiber in terms of tolerance to manufacturing imperfections. To do so we employ a statistical design methodology. This analysis reveals those crucial parameters of the fiber that have to be controlled precisely during the fabrication process not to deteriorate the fiber performance. Finally we show that the fiber can be fabricated according to our design and we present experimental results that confirm the expected fiber performance.
Original languageEnglish
Title of host publicationProc. SPIE, 2012
ISBN (Print)978-0-8194-9118-3
Publication statusPublished - 2012
EventSPIE Microstructured and Specialty Optical Fibres - Brussels, Belgium
Duration: 17 Apr 201219 Apr 2012

Publication series

NameProc. SPIE, 2012


ConferenceSPIE Microstructured and Specialty Optical Fibres

    Research areas


ID: 2207626