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Proceedings Paper

Ytterbium-doped large-mode-area photonic crystal fiber amplifier with gain shaping for use at long wavelengths
Author(s): Sidsel R. Petersen; Thomas T. Alkeskjold; Federica Poli; Enrico Coscelli; Mette M. Jørgensen; Marko Laurila; Jesper Lægsgaard; Jes Broeng
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Paper Abstract

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.

Paper Details

Date Published: 15 February 2012
PDF: 8 pages
Proc. SPIE 8237, Fiber Lasers IX: Technology, Systems, and Applications, 82373O (15 February 2012); doi: 10.1117/12.905598
Show Author Affiliations
Sidsel R. Petersen, Technical Univ. of Denmark (Denmark)
NKT Photonics A/S (Denmark)
Thomas T. Alkeskjold, NKT Photonics A/S (Denmark)
Federica Poli, Univ. degli Studi di Parma (Italy)
Enrico Coscelli, Univ. degli Studi di Parma (Italy)
Mette M. Jørgensen, Technical Univ. of Denmark (Denmark)
NKT Photonics A/S (Denmark)
Marko Laurila, Technical Univ. of Denmark (Denmark)
Jesper Lægsgaard, Technical Univ. of Denmark (Denmark)
Jes Broeng, NKT Photonics A/S (Denmark)


Published in SPIE Proceedings Vol. 8237:
Fiber Lasers IX: Technology, Systems, and Applications
Eric C. Honea; Sami T. Hendow, Editor(s)

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