Abstract
We propose a novel approach to ultra-narrow optical filtering based on a specially designed slightly asymmetric filter, which can be fabricated using fibre Bragg gratings. A feasibility of 8×40 Gbit/s DWDM RZ transmission with 0.8 bit/s/Hz spectral efficiency (without polarisation multiplexing) over 1280 km of SMF/DCF link without FEC has been confirmed by numerical modelling. © 2004 Elsevier Inc. All rights reserved.
Original language | English |
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Pages (from-to) | 202-208 |
Number of pages | 7 |
Journal | Optical Fiber Technology |
Volume | 11 |
Issue number | 2 |
DOIs | |
Publication status | Published - Apr 2005 |
Keywords
- optical communications
- spectral efficiency
- ultra-narrow filtering