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Assistant Professor Victor Torres Company, Photonics Laboratory, Microtechnology and Nanoscience, Chalmers, Göteborg

Chip-scale parametric frequency comb technology

Time: Thu 2016-03-10 09.00 - 11.00

Location: FA31

Participating: Assistant Professor Victor Torres Company

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Title: Chip-scale parametric frequency comb technology

Abstract: An optical frequency comb is a laser whose spectrum is formed by very sharp and evenly spaced frequency lines. The stabilization of the frequency location of these lines was achieved in 2000 and sparked a revolution in optical frequency synthesis and precision metrology. Since then, laser frequency combs have enabled a myriad of applications, from attoscience to all-optical clocks, and solutions based on modelocked laser oscillators have become commercially available. However, modelocked laser oscillators are built of discrete components and it is practically difficult to shrink their size. In 2007, a disruptive technology was developed that enabled the generation of optical frequency combs in a microphotonic chip: microresonator frequency combs. Even more important than their size, microresonator frequency combs allow for spacing the frequency comb lines in a range that goes from a few tens of GHz to several THz. As a result, they open up completely new possibilities for coherent optical communications, spectroscopy, radio-frequency photonics and astronomy.

In this talk, I will provide a general overview of the past 10 years in microresonator frequency comb research. I will briefly cover different technological platforms, a grasp on the fascinating physics that underlie the comb generation process, a few selected applications and some of the most recent research directions.

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Belongs to: Department of Applied Physics
Last changed: Mar 02, 2016