Related Experiment Video
Updated: Jul 6, 2026
09:43
Transmission of Multiple Signals through an Optical Fiber Using Wavefront Shaping
Published on: March 20, 2017
Wavelength-encoding/temporal-spreading optical code division multiple-access system with in-fiber chirped moiré
L R Chen1, P W Smith, C M de Sterke
1Department of Electrical and Computer Engineering, University of Toronto and Photonics Research Ontario, 10 King's College Road, Toronto, Ontario, M5S 3G4 Canada. chenl@ecf.utoronto.ca
Applied Optics
|March 8, 2008
Summary
This study introduces an optical code division multiple-access system using in-fiber chirped moiré gratings for encoding and decoding. The novel approach leverages these gratings for wavelength-encoding and temporal-spreading in optical networks.
Area of Science:
- Optical engineering
- Telecommunications
- Photonics
Background:
- Optical Code Division Multiple Access (OCDMA) systems offer enhanced security and capacity in optical networks.
- Existing OCDMA systems face challenges in efficient encoding and decoding of broadband optical signals.
Purpose of the Study:
- To propose a novel OCDMA system utilizing in-fiber chirped moiré gratings (CMGs).
- To demonstrate the feasibility of using CMGs for wavelength-encoding and temporal-spreading in OCDMA.
Main Methods:
- Development of an OCDMA system incorporating in-fiber CMGs for signal processing.
- Design of specific optical codes tailored to the characteristics of CMGs.
- Numerical simulations to validate the performance of the proposed system.
Main Results:
- CMGs exhibit wavelength-selective and dispersive properties suitable for OCDMA.
- Demonstrated successful encoding and decoding of broadband pulses using CMGs in reflection mode.
- Numerical simulations confirmed the effectiveness of the proposed CMG-based OCDMA concept.
Conclusions:
- In-fiber CMGs provide a viable solution for advanced OCDMA systems.
- The proposed method enables efficient wavelength-encoding and temporal-spreading for OCDMA.
- This technology has the potential to enhance the performance of future optical communication networks.
