Please use this identifier to cite or link to this item: https://hdl.handle.net/20.500.14279/2376
Title: Spectral modification of type ia fibre bragg gratings by high power near infra-red lasers
Authors: Kalli, Kyriacos 
Simpson, Alexander George 
Zhou, Kaiming 
metadata.dc.contributor.other: Καλλή, Κυριάκος
Major Field of Science: Engineering and Technology
Field Category: Electrical Engineering - Electronic Engineering - Information Engineering
Keywords: Bragg gratings;Optical fibers;Fiber optics;High power lasers
Issue Date: Apr-2006
Source: (2006) Proceedings of SPIE - The International Society for Optical Engineering, 6193, art. no. 61930Y; Reliability of Optical Fiber Components, Devices, Systems, and Networks III;3 -4 April 2006, Strasbourg,France
Conference: Reliability of Optical Fiber Components, Devices, Systems, and Networks III 
Abstract: We report the first experimental measurements on the spectral modification of Type IA fibre Bragg gratings, incorporated in an optical network, which result from the use of high-power, near infrared lasers. The fibre grating properties are modified in a controlled manner by exploiting the characteristics of the inherent 1400nm absorption band of the optical fibre, which grows in strength during the Type IA grating inscription. If the fibre network is illuminated with a high power laser, having an emission wavelength coincident with the absorption band, the Type IA centre wavelength and chirp can be modified. Furthermore, partial grating erasure is demonstrated. This has serious implications when using Type IA gratings in an optical network, as their spectrum can be modified using purely optical methods (no external heating source acts on the fibre), and to their long-term stability as the grating is shown to decay. Conversely, suitably stabilised gratings can be spectrally tailored, for tuning fibre lasers or edge filter modification in sensing applications, by purely optical means.
ISBN: 978-081946249-7
ISSN: 0277-786X
DOI: 10.1117/12.662315
Rights: © 2006 SPIE.
Type: Conference Papers
Affiliation: Higher Technical Institute Cyprus 
Affiliation : Higher Technical Institute Cyprus 
Photonics Research Group Aston University 
Funding: SPIE Europe,Conseil General DuBas-Rhin, France,Communaute Urbaine de Strasbourg, France,Region Alsace, France,Alsace Development Agency, France
Publication Type: Peer Reviewed
Appears in Collections:Δημοσιεύσεις σε συνέδρια /Conference papers or poster or presentation

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