All fibre multichannel flattop filter based on coherent fibre delay line structure

Yicheng Lai, W Zhang, J A R Williams

Research output: Contribution to journalArticle

Abstract

A technique for implementing an all-fibre multichannel flattop filter based on an optically coherent fibre delay line structure is demonstrated. Using a cascaded high birefringence fibre structure, negative tap weighting is realised in the transversal filter with suppression of optical interference noise. Flattened passbands ∼0.35 nm and 0.87 nm with ripples <0.15 dB are obtained.

Original languageEnglish
Pages (from-to)473-475
Number of pages3
JournalElectronics letters
Volume38
Issue number10
DOIs
Publication statusPublished - May 2002

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