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Interferometric fibre grating characterisation

Barcelos, S., Zervas, M.N., Laming, R.I. and Payne, D.N. (1995) Interferometric fibre grating characterisation At IEE Colloquium/Electronics Division on Optical Fibre Grating and their Applications. 30 Jan 1995. 7 pp.

Record type: Conference or Workshop Item (Paper)


One of the most important fibre-optic devices to have emerged in the recent years is the fibre grating. It finds applications in DFB and DBR fibre lasers, dispersion compensation and fibre sensors. Full and accurate amplitude and phase (dispersion) characterization of this device is therefore needed. We have demonstrated such a system based on an interferometric technique (figure 1). The signal arm of a fibre Michelson interferometer is phase-modulated with a saw-tooth function to generate an electric signal at the photodetector which carries the optical phase and amplitude information of the reflective fibre device under test (DUT). The amplitude response of the interferometer is directly proportional to the field reflection coefficient, whereas the measured relative phase is related to the time delay response of the device. The set-up is fully automated and uses a Hewlett Packard tunable laser source (1470-1560nm) with wavelength accuracy are high resonance piezoelectric ceramic cylinders which are wrapped round with some turns of fibre.

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Published date: January 1995
Venue - Dates: IEE Colloquium/Electronics Division on Optical Fibre Grating and their Applications, 1995-01-30 - 1995-01-30


Local EPrints ID: 77029
PURE UUID: 01ad58e5-1bda-4f1d-8e05-b4eec6cf3564

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Date deposited: 11 Mar 2010
Last modified: 18 Jul 2017 23:35

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Author: S. Barcelos
Author: M.N. Zervas
Author: R.I. Laming
Author: D.N. Payne

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