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Wavelength selective mode division multiplexing on a silicon chip.

G F R Chen, T Wang, K J A Ooi

|April 4, 2015

Summary

This summary is machine-generated.

This study demonstrates multiplexing optical modes in waveguides using coupled vertical gratings. The novel design enhances data capacity by combining mode and wavelength division multiplexing.

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Area of Science:

Photonics and Optical Engineering
Integrated Optics
Waveguide Technology

Background:

Optical mode multiplexing is crucial for increasing data transmission capacity.
Existing methods face limitations in scalability and integration.
Vertical gratings offer a promising approach for compact optical devices.

Purpose of the Study:

To demonstrate multiplexing of optical modes in waveguides using coupled vertical gratings.
To design and fabricate a device capable of combining mode division multiplexing (MDM) and wavelength division multiplexing (WDM).
To investigate the potential for augmenting multiplexing capacity in optical communication systems.

Main Methods:

Design and fabrication of sinusoidally corrugated waveguides with varying widths.
Utilizing coupled vertical gratings with a specific period for multiplexing at 1.55 µm.
Characterization of optical structures supporting multiple quasi-Transverse Electric (TE) modes.

Main Results:

Successful demonstration of optical mode multiplexing in structures supporting 3 and 5 quasi-TE modes.
Implementation of counter-propagating modes within periodic structures.
Validation of the device's ability to integrate MDM and WDM functionalities.

Conclusions:

Coupled vertical gratings provide an effective method for optical mode multiplexing.
The proposed device architecture significantly enhances multiplexing capacity by combining MDM and WDM.
This technology holds potential for next-generation high-capacity optical communication networks.