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Quasi-light Storage for Optical Data Packets

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All-optical half adder using cross gain modulation in semiconductor optical amplifiers.

Sang Hun Kim, Jae Hun Kim, Jae Won Choi

|June 17, 2009

Summary

This summary is machine-generated.

This study demonstrates an all-optical binary half adder using semiconductor optical amplifier gain nonlinearity. The device achieves 10 Gbps operation for SUM and CARRY logic functions via cross gain modulation.

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Area of Science:

Optoelectronics
Optical Computing
Semiconductor Devices

Background:

All-optical computing offers potential for high-speed data processing.
Semiconductor optical amplifiers (SOAs) are key components in optical communication systems.
Implementing complex logic functions optically remains a significant challenge.

Purpose of the Study:

To demonstrate an all-optical binary half adder operating at 10 Gbps.
To utilize the cross gain modulation mechanism in SOAs for logic operations.
To explore the potential for advanced optical logic and integration.

Main Methods:

Leveraging the gain nonlinearity characteristics of semiconductor optical amplifiers.
Implementing XOR and AND gates using cross gain modulation for SUM and CARRY functions.
Experimental validation of the all-optical half adder at 10 Gbps.

Main Results:

Successful demonstration of an all-optical binary half adder.
Operation achieved at a data rate of 10 Gbps.
Extinction ratios of approximately 6.1 dB for both XOR and AND gates were obtained.

Conclusions:

The study confirms the feasibility of all-optical half adders using SOA gain nonlinearity.
The cross gain modulation mechanism is effective for implementing fundamental logic gates.
This work opens avenues for more complex optical logic operations and device integration.