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All-optical switching in quadratically nonlinear waveguide arrays.

Thomas Pertsch¹, Ulf Peschel, Falk Lederer

¹Institute of Condensed Matter Theory and Optics, Friedrich-Schiller-University Jena, Max-Wien-Platz 1, 07743 Jena, Germany. pertsch@pinet.uni-jena.de

|March 27, 2003

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We show how to efficiently switch and route low-power optical signals using waveguide arrays. This method allows signals to change position and wavelength simultaneously with minimal signal loss.

Area of Science:

Nonlinear optics
Integrated photonics
Waveguide technology

Background:

Waveguide arrays are crucial for optical signal processing.
Nonlinear optical effects enable advanced functionalities.
Efficient signal control is essential for photonic networks.

Purpose of the Study:

To demonstrate efficient switching and routing of low-power signals.
To utilize second-order nonlinearity for signal manipulation.
To achieve simultaneous wavelength conversion with low crosstalk.

Main Methods:

Utilizing waveguide arrays with engineered second-order nonlinearity.
Employing control beams to direct and modify optical signals.
Experimental demonstration of signal switching and wavelength conversion.

Related Experiment Videos

Main Results:

Achieved efficient switching of low-power signals to desired output positions.
Demonstrated simultaneous wavelength conversion of signals.
Maintained low crosstalk levels during signal manipulation.

Conclusions:

The proposed scheme offers efficient control over optical signals in waveguide arrays.
Second-order nonlinearity provides a viable mechanism for integrated photonic signal processing.
This technique has potential applications in optical communication and computing systems.