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Related Experiment Video

Updated: Jun 13, 2026

Direct Imaging of Laser-driven Ultrafast Molecular Rotation

Direct Imaging of Laser-driven Ultrafast Molecular Rotation

Published on: February 4, 2017

Electrooptic Bragg diffraction switches in low cross-talk integrated-optics switching matrix.

E M Philipp-Rutz¹, R Linares, M Fakuda

¹Digital Communications Corporation, 11717 Exploration Lane, Germantown, Maryland 20767, USA.

|April 17, 2010

Summary

This study introduces a novel electrooptic Bragg diffraction switch for planar waveguides, achieving low crosstalk by utilizing only the ON state of switches. This design ensures minimal interference with laser beams in the OFF state.

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Last Updated: Jun 13, 2026

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Orientational Transition in a Liquid Crystal Triggered by the Thermodynamic Growth of Interfacial Wetting Sheets

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Published on: May 15, 2017

Area of Science:

Optoelectronics
Photonics
Waveguide Technology

Background:

Traditional optical switching matrices often suffer from signal loss and crosstalk due to complex waveguide junctions.
Electrooptic devices offer potential for high-speed optical signal manipulation.

Purpose of the Study:

To develop and describe a novel switching matrix utilizing electrooptic Bragg diffraction switches.
To demonstrate a method for achieving low crosstalk in optical switching.
To ensure minimal impact on optical signals when switches are in the OFF state.

Main Methods:

Implementation of electrooptic Bragg diffraction switches within a planar waveguide architecture.
Designing the matrix to utilize only the ON state for input-output port connections.
Leveraging wave propagation characteristics in planar waveguides to minimize interference.

Main Results:

Achieved low crosstalk in the switching matrix.
Demonstrated that wave propagation in a planar waveguide eliminates waveguide junctions, contributing to low crosstalk.
Confirmed that electrooptic Bragg diffraction switches in the OFF position do not adversely affect propagating laser beams.

Conclusions:

The described switching matrix offers an effective solution for low-crosstalk optical switching.
The planar waveguide design and selective switch activation are key to the performance.
This technology holds promise for advanced optical communication and signal processing systems.