Optical configuration of an N ∶ 2^N reversible decoder using a LiNbO₃-based Mach-Zehnder interferometer

Area of Science:

• Optoelectronics
• Nanotechnology
• Quantum Computing

Background:

• Integrated circuit (IC) design faces challenges in managing energy dissipation and heat.
• Reversible computing offers a promising approach for low-power ICs and nanotechnology applications.
• Optical reversible logic provides high-speed computation with minimal information loss.

Purpose of the Study:

• To explore an optical implementation of an optimized Fredkin gate.
• To design an N:2^N reversible decoder using the optimized optical Fredkin gate.
• To validate the optical design through mathematical modeling and simulation.

Main Methods:

• Utilized the electro-optic effect in a lithium niobate (LiNbO3)-based Mach-Zehnder interferometer.
• Employed the Beam Propagation Method (BPM) for optical design simulations.
• Performed mathematical modeling of output power and validated results in MATLAB.

Main Results:

• Successfully designed an optimized optical Fredkin gate.
• Developed an N:2^N reversible decoder based on the optical Fredkin gate.
• Validated the proposed designs through simulation and mathematical analysis.

Conclusions:

• The proposed optical implementation of the Fredkin gate and N:2^N decoder is effective for low-power, high-speed computation.
• Optical reversible logic is a viable technology for future computing paradigms.
• The study demonstrates a practical approach for designing optical reversible logic circuits.