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Characterization of SiN Integrated Optical Phased Arrays on a Wafer-Scale Test Station

Characterization of SiN Integrated Optical Phased Arrays on a Wafer-Scale Test Station

Published on: April 1, 2020

All-optical half adder using an SOA and a PPLN waveguide for signal processing in optical networks.

Saurabh Kumar¹, Alan E Willner, Deniz Gurkan

¹Dept. of EE-Systems, University of Southern California, 3740 McClintock Avenue, EEB #500, Los Angeles CA 90089, USA. skumar@usc.edu

|June 17, 2009

Summary

We developed an all-optical half adder for serial data streams, enabling bit-wise addition with simultaneous Sum and Carry outputs. This optical computing module utilizes nonlinear optical elements for efficient XOR and AND operations.

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Characterization of SiN Integrated Optical Phased Arrays on a Wafer-Scale Test Station

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Quasi-light Storage for Optical Data Packets

Quasi-light Storage for Optical Data Packets

Published on: February 6, 2014

Area of Science:

Photonics
Optical Computing
Nonlinear Optics

Background:

Optical computing offers potential advantages in speed and bandwidth over electronic computing.
Implementing complex logic functions optically is crucial for advancing optical processing systems.

Purpose of the Study:

To demonstrate an all-optical half adder module for bit-wise addition of serial data streams.
To achieve simultaneous Sum and Carry outputs using nonlinear optical elements.

Main Methods:

Utilized Difference Frequency Generation in a periodically poled lithium niobate waveguide as an AND gate.
Employed cross-gain modulation in a semiconductor optical amplifier for the XOR operation.
Integrated these two nonlinear optical elements to create the half adder functionality.

Main Results:

Successfully demonstrated an all-optical half adder.
Achieved error-free operation for Return-to-Zero (RZ) data streams.
Simultaneous generation of Sum and Carry outputs was confirmed.

Conclusions:

The proposed all-optical half adder is a viable component for optical data processing.
The use of nonlinear optical elements enables efficient and compact implementation of logic functions.
Further development could lead to more complex optical arithmetic circuits.