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Shaping the Amplitude and Phase of Laser Beams by Using a Phase-only Spatial Light Modulator

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Non-reciprocal geometric phase in nonlinear frequency conversion.

Kai Wang, Yu Shi, Alexander S Solntsev

|May 16, 2017

Summary

This summary is machine-generated.

Researchers have developed a non-reciprocal geometric phase for nonlinear frequency conversion, overcoming limitations of existing devices. This robust and practical method offers controllable phase properties using a single waveguide and pump.

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Area of Science:

Photonics
Nonlinear Optics
Quantum Optics

Background:

Geometric phase in nonlinear frequency conversion is crucial for optical device performance.
Existing devices often face limitations due to dynamic reciprocity.
Achieving non-reciprocity is key to overcoming these limitations.

Purpose of the Study:

To analytically and numerically describe the geometric phase in nonlinear frequency conversion.
To demonstrate a method for achieving non-reciprocal geometric phase.
To propose a practical implementation for non-reciprocal photonic devices.

Main Methods:

Analytical description of geometric phase.
Numerical simulations of nonlinear frequency conversion.
Investigation of momentum-dependent photonic transitions.

Main Results:

The geometric phase can be made non-reciprocal through momentum-dependent photonic transitions.
This non-reciprocity circumvents issues associated with dynamic reciprocity in Kerr devices.
A practical implementation using a single waveguide and pump is proposed.

Conclusions:

The proposed method offers a robust and controllable way to achieve non-reciprocal geometric phase.
This approach promises improved performance and reliability in photonic devices.
Controllability via pump and robustness against fabrication errors are key advantages.