Can 40-gb/s duobinary signals be carried over transparent DWDM systems with 50-GHz channel spacing?
- 23 May 2005
- journal article
- Published by Institute of Electrical and Electronics Engineers (IEEE) in IEEE Photonics Technology Letters
- Vol. 17 (6) , 1328-1330
- https://doi.org/10.1109/lpt.2005.846456
Abstract
The feasibility of transmitting 40-Gb/s optical duobinary signals over transparent dense wavelength-division-multiplexed (DWDM) systems with a 50-GHz channel spacing and multiple optical add-drop multiplexers (OADMs) is investigated. While the duobinary format is tolerant to passband narrowing, from concatenated filtering by the OADMs, it is very sensitive to the group-delay ripple (GDR) associated with this filtering. We show that GDR must be carefully controlled, e.g., by GDR compensation, before 40-Gb/s duobinary signals can be effectively used in DWDM systems originally designed for 10-Gb/s traffic.Keywords
This publication has 10 references indexed in Scilit:
- Multiterabit/s DWDM Terrestrial Transmission With Bandwidth-Limiting Optical FilteringIEEE Journal of Selected Topics in Quantum Electronics, 2004
- A Novel 10-Gb/s Duobinary Receiver With Improved Back-to-Back Performance and Large Chromatic Dispersion ToleranceIEEE Photonics Technology Letters, 2004
- Impact of Group-Delay Ripple in Transmission Systems Including Phase-Modulated FormatsIEEE Photonics Technology Letters, 2004
- Compact and low-loss integrated flat-top passband demuxPublished by Institute of Electrical and Electronics Engineers (IEEE) ,2002
- Optical duobinary transmission system featuring improved receiver sensitivity and reduced optical bandwidthIEEE Photonics Technology Letters, 2002
- Suppression of intrachannel four-wave-mixing–induced ghost pulses in high-speed transmissions by phase inversion between adjacent marker blocksOptics Letters, 2002
- 3.2 Tbit/s (80×40 Gbit/s) phase-shaped binary transmission over 3×100 km with 0.8 bit/s/Hz efficiencyElectronics Letters, 2002
- Dispersive properties of optical filters for WDM systemsIEEE Journal of Quantum Electronics, 1998
- Multifunction optical filter with a Michelson–Gires–Tournois interferometer for wavelength-division-multiplexed network system applicationsOptics Letters, 1998
- Reduced bandwidth optical digital intensity modulationwith improvedchromatic dispersion toleranceElectronics Letters, 1995