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Interferometric switching in coupled resonator optical waveguides-based reconfigurable optical device.

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Integrated optical devices using coupled resonator optical waveguides (CROW) offer reconfigurable band routing. This new design provides advanced switching features and three functional states, including a 50% splitter mode.

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Area of Science:

  • Photonics and Optical Engineering
  • Integrated Optics
  • Waveguide Devices

Background:

  • Coupled resonator optical waveguides (CROW) are fundamental for optical signal processing.
  • Existing CROW devices primarily function as add-drop filters.
  • There is a need for more versatile CROW-based devices with enhanced switching capabilities.

Purpose of the Study:

  • To explore integrated optical devices based on CROW for reconfigurable band routing.
  • To propose a novel reconfiguration principle for CROW structures.
  • To introduce a device that extends the functionality beyond simple add-drop filters.

Main Methods:

  • Design and theoretical analysis of a two-bus interferometric CROW resonant structure.
  • Investigation of the device's operational principles for band routing.
  • Characterization of the device's switching and splitting functionalities.

Main Results:

  • A novel reconfiguration principle for CROW devices is proposed.
  • The proposed device demonstrates extended switching functionalities.
  • Three distinct functional states are achieved, including complete reconfigurability and a 50% splitter mode.

Conclusions:

  • The developed CROW-based device offers advanced reconfigurable band routing capabilities.
  • This work significantly enhances the versatility of CROW devices in optical signal processing.
  • The proposed design paves the way for more sophisticated integrated optical switching systems.