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 language | English |
|---|---|
| Pages (from-to) | 473-475 |
| Number of pages | 3 |
| Journal | Electronics letters |
| Volume | 38 |
| Issue number | 10 |
| DOIs | |
| Publication status | Published - May 2002 |