Time delay characterization of a tunable chirped fibre grating for dispersion compensation
Time delay characterization of a tunable chirped fibre grating for dispersion compensation
The development of chirped fibre grating filters for dispersion compensation in long fibre telecommunications links requires full and accurate amplitude and time delay characterisation of these devices. We have recently demonstrated a wavelength scanning interferometric technique with sub-picosecond time-delay and 3µm wavelength resolutions to provide such measurements. The system is based on an all-fibre Michelson interferometer. The reference arm of the interferometer is phase-modulated to generate an electric signal at the photodetector which carries the optical phase and amplitude information of the reflective fibre device under test, which is included in the signal arm. The amplitude response of the interferometer is directly proportional to the field reflection coefficient whilst the time delay is given by the derivative of the relative phase with respect to wavelength. A high wavelength resolution tunable laser source (HP8168A/C) is used in conjunction with a fully automated set-up to provide sub-picosecond resolution.
Barcelos, S.
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Zervas, M.N.
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Laming, R.I.
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Payne, David
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Reekie, L.
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Barcelos, S.
210653b9-7166-403d-8883-818598ef090f
Zervas, M.N.
1840a474-dd50-4a55-ab74-6f086aa3f701
Laming, R.I.
c86f359b-9145-4148-bc7d-ae4f3d272ca2
Payne, David
4f592b24-707f-456e-b2c6-8a6f750e296d
Reekie, L.
ec314137-6924-44ad-86a4-ff3f9a67c1b5
Barcelos, S., Zervas, M.N., Laming, R.I., Payne, David and Reekie, L.
(1995)
Time delay characterization of a tunable chirped fibre grating for dispersion compensation.
12th UK National Quantum Electronics Conference (QE12), Southampton, Southampton, United Kingdom.
04 - 08 Sep 1995.
Record type:
Conference or Workshop Item
(Paper)
Abstract
The development of chirped fibre grating filters for dispersion compensation in long fibre telecommunications links requires full and accurate amplitude and time delay characterisation of these devices. We have recently demonstrated a wavelength scanning interferometric technique with sub-picosecond time-delay and 3µm wavelength resolutions to provide such measurements. The system is based on an all-fibre Michelson interferometer. The reference arm of the interferometer is phase-modulated to generate an electric signal at the photodetector which carries the optical phase and amplitude information of the reflective fibre device under test, which is included in the signal arm. The amplitude response of the interferometer is directly proportional to the field reflection coefficient whilst the time delay is given by the derivative of the relative phase with respect to wavelength. A high wavelength resolution tunable laser source (HP8168A/C) is used in conjunction with a fully automated set-up to provide sub-picosecond resolution.
More information
e-pub ahead of print date: 1995
Additional Information:
Paper P1-24
Venue - Dates:
12th UK National Quantum Electronics Conference (QE12), Southampton, Southampton, United Kingdom, 1995-09-04 - 1995-09-08
Identifiers
Local EPrints ID: 76995
URI: http://eprints.soton.ac.uk/id/eprint/76995
PURE UUID: 656be558-d8fb-401d-b40e-52675738e4ec
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Date deposited: 11 Mar 2010
Last modified: 14 Mar 2024 02:35
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Contributors
Author:
S. Barcelos
Author:
R.I. Laming
Author:
L. Reekie
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