Michelson interferometer-type wavelength converter integrated with multimode interference coupler; fundamental characteristics

Keitaro Yoshioka, Kohji Miyazaki, Katsuyuki Utaka, Kei Uchida, Atsushi Matsumoto

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    We proposed and investigated a Michelson interferometer-type wavelength converter with a multimode interference coupler (MIWC-MMIC) as one of the key devices in future DWDM photonic switching networks. The MIWC-MMIC is compact and efficient due to its Michelson interferometer-like structure, which uses an MMIC simultaneously as input and output-side couplers. The dependence of the output characteristics on structural parameters, such as the power-division ratio of the MMIC and the reflection coefficient at semiconductor optical amplifier (SOA) ends, was analyzed to optimize the structure for operation with a low excess loss and a low signal light power. The device was actually fabricated and its preliminary static characteristics were measured. The cross modulation of the converted light by 9.0 dB was attained by introducing a signal light with a power of about -5 dBm.

    Original languageEnglish
    Pages (from-to)3424-3428
    Number of pages5
    JournalJapanese Journal of Applied Physics, Part 1: Regular Papers and Short Notes and Review Papers
    Issue number6 A
    Publication statusPublished - 2004 Jun



    • Cross-phase modulation
    • InGaAsP/InP
    • Michelson interferometer
    • Multimode interference coupler
    • Semiconductor optical amplifier
    • Wavelength conversion

    ASJC Scopus subject areas

    • Physics and Astronomy (miscellaneous)

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