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Related Experiment Video

Updated: Apr 22, 2026

Generation and Coherent Control of Pulsed Quantum Frequency Combs

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Published on: June 8, 2018

Strain-optic active control for quantum integrated photonics.

Peter C Humphreys, Benjamin J Metcalf, Justin B Spring

|October 17, 2014

Summary

This summary is machine-generated.

We developed a new method for active phase control on photonic chips using strain-optic effects. This technique rapidly manipulates quantum states of light, enabling advanced quantum photonics applications.

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Area of Science:

Quantum photonics
Integrated photonics
Optomechanics

Background:

Active phase control is crucial for quantum information processing.
Existing methods for phase control on photonic chips have limitations.
Strain-optic effects offer a potential route for integrated optical control.

Purpose of the Study:

To present a practical method for active phase control on a photonic chip.
To demonstrate the application of this method in quantum photonics.
To enable rapid and polarization-dependent phase modulation.

Main Methods:

Utilizing strain-optic modification of the refractive index in individual waveguides.
Employing a millimeter-scale mechanical actuator for strain induction.
Demonstrating control over non-classical states of light in silica.

Main Results:

Achieved rapid, polarization-dependent phase changes in optical fields.
Generated two-photon polarization N00N states by manipulating Hong-Ou-Mandel interference.
Demonstrated switching times of a few microseconds.

Conclusions:

The presented method offers practical active phase control for photonic chips.
The rapid switching times are suitable for feed-forward control of photonic quantum states.
This technique has immediate applications in quantum photonics and integrated optical devices.