Please use this identifier to cite or link to this item: https://ktisis.cut.ac.cy/handle/10488/1135
Title: Long period gratings written into a photonic crystal fibre by a femtosecond laser as directional bend sensors
Authors: Allsop, Thomas D P 
Kalli, Kyriacos 
Zhou, Kaiming 
Lai, Yicheng 
Smith, Graham N. 
Dubov, Mykhaylo V. 
Webb, David J. 
Bennion, Ian 
Keywords: Photonic crystals;Femtosecond laser
Category: Electrical Engineering - Electronic Engineering - Information Engineering
Field: Engineering and Technology
Issue Date: 2008
Publisher: Elsevier B.V.
Source: Optics Communications. vol. 281, no. 20, 15 October 2008, pp. 5092-5096
Journal: Optics Communications 
Abstract: A series of symmetric and asymmetric LPGs were inscribed in photonic crystal fibre by a low repetition rate femtosecond laser system. The asymmetric LPGs were found to be spectrally sensitive to bend orientation, with some of the attenuation bands producing both red and blue wavelength shifts, whilst the symmetric devices produced only a unidirectional wavelength shift. Both sets of devices displayed strong polarisation dependence.
ISSN: 0030-4018
DOI: 10.1016/j.optcom.2008.07.001
Rights: © 2008 Elsevier B.V.
Type: Article
Appears in Collections:Άρθρα/Articles

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