Chromatic dispersion tolerance of new duobinary transmitters based on two intensity modulators without using electrical low-pass filters

Jaehoon Lee, Hodeok Jang, Yonghoon Kim, Seonghoon Choi, S. G. Park, Jichai Jeong

    Research output: Contribution to journalArticlepeer-review

    17 Citations (Scopus)

    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 languageEnglish
    Pages (from-to)2264-2270
    Number of pages7
    JournalJournal of Lightwave Technology
    Volume22
    Issue number10
    DOIs
    Publication statusPublished - 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

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