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A Silicon-tipped Fiber-optic Sensing Platform with High Resolution and Fast Response

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Silicon microdisk-based full adders for optical computing.

Zhoufeng Ying, Zheng Wang, Zheng Zhao

|March 1, 2018

Summary

This summary is machine-generated.

Researchers developed a ripple-carry electro-optic 2-bit full adder using microdisks. This optical computing approach offers high bandwidth and low power consumption, addressing Moore's law limitations for faster future systems.

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Area of Science:

Integrated photonics
Optical computing
Semiconductor device physics

Background:

Moore's Law is approaching saturation, driving demand for alternative computing paradigms.
Silicon photonics offers high bandwidth and low power consumption, leveraging mature integrated photonic components.
Existing electrical full adders face latency issues that scale with circuit size.

Purpose of the Study:

To demonstrate a novel ripple-carry electro-optic 2-bit full adder.
To replace core electrical components with optical counterparts for signal processing.
To address latency and power consumption challenges in digital computing.

Main Methods:

Utilized microdisk resonators for optical signal manipulation.
Implemented a ripple-carry architecture using light for inter-bit signal transmission.
Applied control signals for operands simultaneously within a single clock cycle.

Main Results:

Successfully demonstrated a 2-bit full adder functioning via electro-optic conversion.
Achieved high bandwidth and reduced power consumption per bit compared to electrical counterparts.
Circumvented cumulative latency issues inherent in larger ripple-carry circuits.

Conclusions:

This electro-optic full adder design offers a viable path towards high-speed optical computing.
The approach provides a solution for the post-Moore's Law era by enhancing computing speed and reducing power.
Microdisk-based optical adders represent a significant advancement in integrated photonic systems.