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Multiport InP monolithically integrated all-optical wavelength router.

Xiu Zheng, Oded Raz, Nicola Calabretta

    Optics Letters
    |August 13, 2016
    PubMed
    Summary

    This study demonstrates an indium phosphide-based wavelength router with four inputs and four outputs. The device achieves error-free all-optical routing at 40 Gb/s, showcasing its potential for advanced optical networks.

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    Area of Science:

    • Photonics and Optical Engineering
    • Integrated Optics
    • Semiconductor Devices

    Background:

    • Wavelength routing is crucial for high-capacity optical communication networks.
    • Monolithic integration of optical components offers advantages in size, cost, and performance.
    • Semiconductor optical amplifiers are key components for all-optical signal processing.

    Purpose of the Study:

    • To demonstrate a monolithically integrated indium phosphide-based wavelength router.
    • To integrate four wavelength converters and a 4x4 arrayed-waveguide grating router on a single chip.
    • To evaluate the performance of the integrated device for all-optical routing functions.

    Main Methods:

    • Fabrication of an indium phosphide-based photonic integrated circuit.
    • Integration of four semiconductor optical amplifiers for wavelength conversion.
    • Implementation of cross-gain modulation and cross-phase modulation effects for wavelength switching.
    • Testing of the device using a 40 Gb/s non-return-to-zero pseudorandom binary sequence.

    Main Results:

    • Successful demonstration of a 4x4 integrated wavelength router.
    • Achieved error-free wavelength switching at 40 Gb/s data rates.
    • Demonstrated 1x4 and 3x1 all-optical routing functions for the first time.
    • Reported low power penalties as low as 3.2 dB for the routing functions.

    Conclusions:

    • The developed indium phosphide-based wavelength router is a promising platform for advanced optical communication systems.
    • Monolithic integration enables efficient and compact all-optical routing solutions.
    • The device performance validates its suitability for high-speed data transmission and switching.