Star Couplers with Gain Using Fiber Amplifiers

Mansour I. Irshid, Mohsen Kavehrad

    Research output: Contribution to journalArticlepeer-review

    11 Scopus citations


    In this letter, we propose a novel technique for constructing large passive star couplers with gain using high-power erbium-doped fiber amplifiers (EDF). In contrast to other proposed techniques [5], [6] where each output port of the coupler requires its own EDF amplifier, the proposed alternative requires few EDF amplifiers with sufficient output saturation power levels. When used in an FDM/WDM star network, the size of the coupler can be increased by a factor of m using m narrowband EDF amplifiers. Moreover, this alternative avoids coupling the pump-laser light through the star coupler itself, alleviating the requirement on designing large bandwidth couplers to accommodate the signal and the pump wavelengths.

    Original languageEnglish (US)
    Pages (from-to)58-60
    Number of pages3
    JournalIEEE Photonics Technology Letters
    Issue number1
    StatePublished - Jan 1992

    All Science Journal Classification (ASJC) codes

    • Electronic, Optical and Magnetic Materials
    • Atomic and Molecular Physics, and Optics
    • Electrical and Electronic Engineering


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