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Proceedings Paper

Wavelength-tuneable add/drop multiplexer using broadband transmission filters and a narrowband reflection filter
Author(s): Ronnie Kritzinger; André Booysen
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Paper Abstract

We present an optical add/drop multiplexing device utilising a pair of broadband transmission filters and a narrowband reflection filter, designed for operation in a dense wavelength-division multiplexing network. Evanescent field coupling in an optical fibre-based cladding-mode coupler allow broadband light to be transferred between two fibres containing non-uniform long-period fibre gratings. An erbium-doped fibre amplifier was used to restore the power level of the output signal obtained from the cladding-mode coupler, to its original level. A tuneable Bragg grating is used to select a specific wavelength channel from the broadband light routed through the cladding-mode coupler, and is able to work over a linear tuning range of 5.3 nm, covering ~13% of the C-band.

Paper Details

Date Published: 16 May 2008
PDF: 4 pages
Proc. SPIE 7004, 19th International Conference on Optical Fibre Sensors, 70042O (16 May 2008); doi: 10.1117/12.786013
Show Author Affiliations
Ronnie Kritzinger, Univ. of Johannesburg (South Africa)
André Booysen, Univ. of Johannesburg (South Africa)

Published in SPIE Proceedings Vol. 7004:
19th International Conference on Optical Fibre Sensors

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