Transmission performance analysis of 8 × 10 Gb/s WDM signals using cascaded SOAs due to signal wavelength displacement

Woosuk Choi, Sub Hur, Jaehoon Lee, Yonggyoo Kim, Jichai Jeong

    Research output: Contribution to journalArticlepeer-review

    25 Citations (Scopus)

    Abstract

    We have analyzed the transmission performance of 8 × 10 Gb/s wavelength division multiplexing (WDM) signals due to crosstalk in cascaded conventional semiconductor optical amplifiers (SOAs). Using two different methods, the crosstalk over the whole gain bandwidth in SOAs is calculated to be 2-5 dB lower for the positive detuning. Then, transmission performance of 8 × 10 Gb/s WDM signals up to 6 × 40 km span in terms of receiver sensitivity is estimated over various transmission distance using cascaded SOAs for the positive signal wavelength displacement of 30, 40, and 50 nm. Especially for 50 nm detuning, transmission performances with and without using a reservoir channel are similar to each other. Our results suggest that SOAs can be used as an optical amplifier for displacement larger than 50 nm without using the reservoir channel.

    Original languageEnglish
    Pages (from-to)1350-1356
    Number of pages7
    JournalJournal of Lightwave Technology
    Volume20
    Issue number8
    DOIs
    Publication statusPublished - 2002 Aug

    Bibliographical note

    Funding Information:
    Manuscript received January 8, 2002; revised May 13, 2002. This work was supported in part by the NRL and BK program in South Korea. W. Choi was with the Department of Radio Engineering, Korea University, Seoul 136-701, Korea. He is now with Telecommunications Network Laboratory (Korea Telecom), Daejon, Korea (e-mail: [email protected]). S. Hur, J. Lee, Y. Kim, and J. Jeong are with the Department of Radio Engineering, Korea University, Seoul 136-701, Korea. Digital Object Identifier 10.1109/JLT.2002.800797

    Keywords

    • Crosstalk
    • Optical communication
    • Optical signal processing
    • Semiconductor optical amplifier (SOA)
    • Wavelength division multiplexing (WDM)

    ASJC Scopus subject areas

    • Atomic and Molecular Physics, and Optics

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