Integrated Transversal Equalizers in High-Speed Fiber-Optic Systems
Abstract
Intersymbol interference (ISI) caused by intermodal dispersion in multimode fibers is the major limiting factor in the achievable data rate or transmission distance in high-speed multimode fiber-optic links for local area networks applications. Compared with optical-domain and other electrical-domain dispersion compensation methods, equalization with transversal filters based on distributed circuit techniques presents a cost-effective and low-power solution. The design of integrated distributed transversal equalizers is described in detail with focus on delay lines and gain stages. This seven-tap distributed transversal equalizer prototype has been implemented in a commercial 0.18-µm SiGe BiCMOS process for 10-Gb/s multimode fiber-optic links. A seven-tap distributed transversal equalizer reduces the ISI of a 10-Gb/s signal after 800 m of 50-µm multimode fiber from 5 to 1.38 dB, and improves the bit-error rate from about 10^-5 to less than 10^-12.
Additional Information
"©2003 IEEE. Personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution to servers or lists, or to reuse any copyrighted component of this work in other works must be obtained from the IEEE." Manuscript received April 22, 2003; revised July 7, 2003. This work was supported by NIST/ATP through the Photonics CAD Consortium, National Science Foundation, under Contracts ECS-0083220 and ECS-0239343, and by the Lee Center for Advanced Networking. The authors would like to thank M. Oprysko, M. Soyuer, D. Friedman, H. Ainspan, J. Yang, U. Pfeifer, D. Beisser, and R. John at IBM Research for their help and support in this project. They also appreciate discussion with D. Ham, H. Hashemi, B. Analui, X. Guan, and S. Kee at Caltech.Files
| Name | Size | Download all |
|---|---|---|
|
md5:6e9c1338408f9d35cee39b27c5c6d857
|
507.1 kB | Preview Download |
Additional details
- Eprint ID
- 438
- Resolver ID
- CaltechAUTHORS:WUHieeejssc03
- Created
-
2005-06-18Created from EPrint's datestamp field
- Updated
-
2020-03-09Created from EPrint's last_modified field