University of Dundee

Université De Neuchâtel

Thomas Sudmeyer

Craig James Hamilton

Graeme Malcolm

Edik Rafailov

Ursula Keller

Martin Hoffmann

Kurt Weingarten

Stephane Schilt

Pablo Loza-Alvarez

Yohan Barbarin

A laser source that generates an optical frequency comb, comprising a pumped laser medium placed inside an optical cavity that incorporates at least one optically-controlled modulator, a detector generating an error signal, and a modulation optical source that is controlled by the error signal and whose radiation is directed onto said optically-controlled modulator thereby stabilizing the Carrier-Envelope Offset (CEO) frequency and/or the CEO phase and/or the repetition rate of said source.

Opto-optical modulation of a saturable absorber for high bandwidth CEO stabilization of a femtosecond laser frequency comb

A mode locked semiconductor disk laser with an output beam having an ultra-short pulse length which provides the incident beam to a non linear microscope. The wavelength of the beam is at or near the action cross section maximum absorption wavelength for creating two photon excited fluorescence of a fluorescent biological marker in a sample. Semiconductor disk lasers combine excellent beam quality and output power, stability while maintaining simplicity and easiness of operation. In addition, these types of lasers are ideally suited for mass production as they are built in wafer-scale technology enabling a high level of integration. Importantly this non expensive, turn-key, compact laser system could be used as a platform to develop portable non-linear bio-imaging devices for clinical studies, facilitating its wide-spread adoption in 'real-life' applications.

Semiconductor disk laser for nonlinear microscopy applications in living organisms

Growing community of inventors

Zurich, Switzerland

Thomas Sudmeyer