Subcarrier multiplexing for high-speed optical transmission

The performance of high-speed digital fiber-optic transmission using subcarrier multiplexing (SCM) is investigated both analytically and numerically. In order to reduce the impact of fiber chromatic dispersion and increase bandwidth efficiency, optical single-sideband (OSSB) modulation was used. Bec...

Full description

Saved in:
Bibliographic Details
Published in:Journal of lightwave technology 2002-03, Vol.20 (3), p.417-427
Main Authors: Rongqing Hui, Benyuan Zhu, Renxiang Huang, Allen, C.T., Demarest, K.R., Richards, D.
Format: Article
Language:English
Subjects:
Amplitude modulation
Applied sciences
Bandwidth
Chromatic dispersion
Dispersions
Exact sciences and technology
Fiber nonlinear optics
Fiber optics
High speed
High speed optical techniques
Mathematical analysis
Modulation
Multiplexing
Nonlinear optics
Optical crosstalk
Optical fiber polarization
Optical fibers
Optical modulation
Optical receivers
Subcarriers
Systems, networks and services of telecommunications
Telecommunications
Telecommunications and information theory
Transmission and modulation (techniques and equipments)
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:The performance of high-speed digital fiber-optic transmission using subcarrier multiplexing (SCM) is investigated both analytically and numerically. In order to reduce the impact of fiber chromatic dispersion and increase bandwidth efficiency, optical single-sideband (OSSB) modulation was used. Because frequency spacing between adjacent subcarriers can be much narrower than in a conventional DWDM system, nonlinear crosstalk must be considered. Although chromatic dispersion is not a limiting factor in SCM systems because the data rate at each subcarrier is low, polarization mode dispersion (PMD) has a big impact on the system performance if radiofrequency (RE) phase detection is used in the receiver. In order to optimize the system performance, tradeoffs must be made between data rate per subcarrier, levels of modulation, channel spacing between subcarriers, optical power, and modulation indexes. A 10-Gb/s SCM test bed has been set up in which 4 /spl times/ 2.5 Gb/s data streams are combined into one wavelength that occupies a 20-GHz optical bandwidth. OSSB modulation is used in the experiment. The measured results agree well with the analytical prediction.
ISSN:0733-8724
1558-2213
DOI:10.1109/50.988990