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Published on: July 18, 2015
Novel dispersive and focusing device configuration based on curved waveguide grating (CWG)
Optics Express
|June 17, 2009
Summary
A new compact device using Curved Waveguide Gratings (CWG) acts as an integrated optic wavelength demultiplexer. This technology offers fine wavelength resolution and low cost for Dense Wavelength Division Multiplexing (DWDM) optical networks.
Area of Science:
- Photonics and Optical Engineering
- Integrated Optics
- Waveguide Devices
Background:
- Dense Wavelength Division Multiplexing (DWDM) networks require efficient wavelength demultiplexing.
- Existing demultiplexers face challenges in terms of size, cost, and performance.
- Integrated optic solutions offer potential for miniaturization and cost reduction.
Purpose of the Study:
- To present the configuration and theoretical mechanism of a novel compact dispersive and focusing device based on a Curved Waveguide Grating (CWG).
- To evaluate the potential of CWG devices as wavelength demultiplexers and network performance monitors in DWDM systems.
Main Methods:
- Theoretical illustration of the wavelength demultiplexing mechanism using Fourier optics.
- Analysis of device performance based on its configuration: a curved stripe waveguide with a tilted grating, an adjacent slab waveguide, and output waveguides.
Main Results:
- The CWG device demonstrates a compact configuration.
- The device exhibits fine wavelength resolution.
- The theoretical analysis indicates potentially low manufacturing costs.
Conclusions:
- The Curved Waveguide Grating (CWG) device is a promising integrated optic wavelength demultiplexer.
- Its characteristics make it suitable for applications in DWDM optical networks and as a network performance monitor.
