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15 February 2012 Ytterbium-doped large-mode-area photonic crystal fiber amplifier with gain shaping for use at long wavelengths
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A large-mode-area Ytterbium-doped photonic crystal fiber amplifier with efficient suppression of amplified spontaneous emission is presented. The fiber cladding consists of a hexagonal lattice of air holes, where three rows are replaced with circular high-index inclusions. Seven missing air holes define the large-mode-area core. Light confinement is achieved by combined index and bandgap guiding, which allows for single-mode operation and distributed spectral filtering of amplified spontaneous. The fiber properties give control of the gain shape and are ideal for amplification in the long wavelength regime of the Ytterbium gain spectrum above 1100 nm.
© (2012) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Sidsel R. Petersen, Thomas T. Alkeskjold, Federica Poli, Enrico Coscelli, Mette M. Jørgensen, Marko Laurila, Jesper Lægsgaard, and Jes Broeng "Ytterbium-doped large-mode-area photonic crystal fiber amplifier with gain shaping for use at long wavelengths", Proc. SPIE 8237, Fiber Lasers IX: Technology, Systems, and Applications, 82373O (15 February 2012);


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