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Single Mach-Zehnder interferometer based optical Boolean logic gates.

Cláudia Reis1, Tanay Chattopadhyay, Paulo André

  • 1Instituto de Telecomunicações, Campus de Santiago, Aveiro, Portugal. creis@av.it.pt

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This study presents a novel optical logic gate design using a single Mach-Zehnder interferometer. This versatile optical circuit can perform 16 logic operations through controlled interference, offering a scalable and low-complexity solution.

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Area of Science:

  • Photonics and Optical Engineering
  • Integrated Optics
  • Digital Logic

Background:

  • Optical logic gates are fundamental components for optical computing.
  • Existing designs often involve complex structures or limited functionality.
  • Mach-Zehnder interferometers offer a platform for manipulating light waves.

Purpose of the Study:

  • To demonstrate a single Mach-Zehnder interferometer capable of performing multiple optical logic gate operations.
  • To investigate the operational conditions for achieving various logic circuits within one design.
  • To present a scalable and low-complexity optical logic circuit solution.

Main Methods:

  • Utilizing a single Mach-Zehnder interferometer with phase modulators in each arm.
  • Investigating operational conditions based on constructive and destructive interference.
  • Evaluating feasibility through numerical simulations.

Main Results:

  • Demonstration of 16 distinct optical logic circuits from a single interferometer design.
  • Identification of specific operational conditions for each logic function.
  • Confirmation of low complexity and high scalability of the proposed configuration.

Conclusions:

  • A single Mach-Zehnder interferometer can be configured to perform a wide range of optical logic operations.
  • The proposed design offers a promising, scalable, and low-complexity approach for integrated optical logic.
  • Numerical simulations validate the feasibility of this versatile optical circuit.