Student Physics Society interview of Dr Schulz

Before the beginning of the summer, the student Physics society interviewed Dr Schulz for their Insight podcast series.

The full interview is now online. Listen to it if you want to know more about Dr Schulz, living in Canada and returning to St Andrews as a Lecturer.

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Thermally stable integrated laser

One problem in silicon photonics is that current integrated light sources are very sensitive to variations in the operating temperature.

Together with the Centre for Advanced Photonics & Process Analysis we have developed a hybrid laser with an external reflector based on silicon nitride gratings. The silicon nitride grating has a low thermo-optic coefficient and so our laser can operate unaffected over a large temperature range.

Our laser has a low threshold power, provides mW level output power and shows stable operation over a wide temperature range.

The full article is published in Applied Optics.

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PhC based tunable optical buffer

In collaboration with the Centre for Advanced Photonics and Process Analysis at the Cork Institute of Technology, we have demonstrated a low loss optical buffer based on photonic crystal cavities, demonstrating a record low loss per storage time. The delay can be tuned dynamically over a range of more than 150ps.

Scanning electron microscope image of the coupled photonic crystal cavities.

This work was published in the March 2018 edition of ACS Photonics.

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PhC based tunable optical buffer

In collaboration with the Centre for Advanced Photonics and Process Analysis at the Cork Institute of Technology, we have demonstrated a low loss optical buffer based on photonic crystal cavities, demonstrating a record low loss per storage time. The delay can be tuned dynamically over a range of more than 150ps.

Scanning electron microscope image of the coupled photonic crystal cavities.

This work was published in the March 2018 edition of ACS Photonics.

Posted in News, Photonic Crystals, Publications, Research, Slow light | Tagged , | Leave a comment