Abstract
This paper describes an investigation of the effect of the extinction ratio and the chirp parameter of the first intensity modulator on the transmission performance of a proposed duobinary transmitter based on two intensity modulators without using electrical low-pass filters. This modulation scheme can generate duobinary signals using only two-level electrical signals without the conversion process to three-level electrical signals using electrical low-pass filters. The simulation results suggest that the appropriate chirp and extinction ratio of the first intensity modulator provide larger dispersion tolerance, compared with the conventional duobinary transmitter. The duobinary transmitter based on two intensity modulators can increase the dispersion tolerance without using electrical low-pass filters.
| Original language | English |
|---|---|
| Pages (from-to) | 2264-2270 |
| Number of pages | 7 |
| Journal | Journal of Lightwave Technology |
| Volume | 22 |
| Issue number | 10 |
| DOIs | |
| Publication status | Published - 2004 Oct |
Bibliographical note
Funding Information:Manuscript received June 30, 2003; revised February 18, 2004. This work was supported in part by the National Research Laboratory (NRL) program in South Korea. J. Lee was with the Department of Radio Engineering, Korea University, Seoul 136-701, Korea. He is now with Digital Home Laboratory Telecommunication Research and Development Center, Samsung Electronics, Suwon 442-742, Korea. H. Jang, Y. Kim, S. Choi, and J. Jeong are with the Department of Radio Engineering, Korea University, Seoul 136-701, Korea. S. G. Park is with the Division of Electrical and Computer Engineering, Hanyang University, Seoul 133-791, Korea. Digital Object Identifier 10.1109/JLT.2004.831136
ASJC Scopus subject areas
- Atomic and Molecular Physics, and Optics