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Related Experiment Video

Updated: Jun 8, 2026

Quasi-light Storage for Optical Data Packets

Quasi-light Storage for Optical Data Packets

Published on: February 6, 2014

High-security 2.5 Gbps, polarization multiplexed 256-ary OCDM using a single multi-port encoder/decoder.

Takahiro Kodama¹, Nobuyuki Kataoka, Naoya Wada

¹1Department of Electrical Electronic, and Information Engineering, Osaka University, 565-0871 Osaka, Japan. kodama@pn.comm.eng.osaka-u.ac.jp

|October 14, 2010

Summary

This summary is machine-generated.

We introduce a novel polarization multiplexed (POL-MUX) M-ary optical code division multiplexing (OCDM) system for enhanced security. This advanced OCDM system achieves higher confidentiality and reduces optical code requirements.

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Transmission of Multiple Signals through an Optical Fiber Using Wavefront Shaping

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Published on: March 20, 2017

Area of Science:

Optical communication systems
Information security
Signal processing

Background:

Conventional optical code division multiplexing (OCDM) systems offer limited security due to bit ciphering.
M-ary OCDM enhances security by employing block ciphering instead of bit ciphering.
Polarization multiplexing (POL-MUX) is a technique to increase data transmission capacity.

Purpose of the Study:

To propose and demonstrate a novel polarization multiplexed (POL-MUX) M-ary OCDM system.
To enhance the security and confidentiality of optical communication networks.
To reduce the complexity and resource requirements of OCDM systems.

Main Methods:

Development of a POL-MUX M-ary OCDM system architecture.
Implementation using a single multi-port optical encoder/decoder (E/D).
Demonstration of 2.5 Gbps transmission with a 256-ary (16x16) modulation scheme.

Main Results:

Successful demonstration of 2.5 Gbps POL-MUX 256-ary OCDM transmission.
The proposed architecture significantly reduces the number of required optical codes.
Enhanced system confidentiality is achieved compared to conventional OCDM.

Conclusions:

The POL-MUX M-ary OCDM system offers a viable solution for secure and high-capacity optical communications.
This approach simplifies system design by reducing optical code requirements.
The integration of polarization multiplexing with M-ary OCDM presents a promising advancement in optical network security.