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Optical signal processing based on semiconductor optical amplifier and tunable delay interferometer

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Abstract

In this paper, several applications in all-optical signal processing based on a semiconductor optical amplifier (SOA) and variable delayed interferometers (DIs) have been experimentally demonstrated. Wavelength converter based on a nonlinear polarization switch (NPS) and a DI is proposed and presented for the wavelength conversion of nonreturn-to-zero (NRZ) signals. An all-optical nonreturn-to-zero to return-to-zero (NRZ-to-RZ) format converter with tunable duty cycles is achieved by the DI with variable delays. The 40 Gb/s reconfigurable optical OR/NOR gate in a single SOA, followed a tunable optical bandpass filter (OBF) and a DI, optical 2R regeneration using an SOA-DI are investigated. It is found that this combinative realization of filters has been endowed with great flexibility and quality for 40 Gb/s optical logic and 2R regeneration.

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Authors and Affiliations

  1. Tsinghua National Laboratory for Information and Science Technology/State Key Laboratory on Integrated Optoelectronics, Department of Electronic Engineering, Tsinghua University, Beijing, 100084, China

    Xiaofan Zhao, Caiyun Lou & Yanming Feng

Authors
  1. Xiaofan Zhao
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  2. Caiyun Lou
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  3. Yanming Feng
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Correspondence to Caiyun Lou.

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Zhao, X., Lou, C. & Feng, Y. Optical signal processing based on semiconductor optical amplifier and tunable delay interferometer. Front. Optoelectron. China 4, 308 (2011). https://doi.org/10.1007/s12200-011-0143-z

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  • DOI: https://doi.org/10.1007/s12200-011-0143-z

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