Université de Neuchâtel

Semiconductor disk laser-based frequency combs

Jornod, Nayara ; Südmeyer, Thomas (Dir.)

Thèse de doctorat : Université de Neuchâtel, 2018.

This thesis studies the first self-referenced frequency combs based on modelocked semiconductor disk lasers (SDLs). The generation of stabilized frequency combs based on ultrafast lasers has been a significant breakthrough for many applications in various fields of physics, spectroscopy and metrology. Optical frequency combs can serve as a frequency ruler that provides a direct and...

Université de Neuchâtel

Compact ultrafast frequency combs

Hakobyan, Sargis ; Südmeyer, Thomas (Dir.)

Thèse de doctorat : Université de Neuchâtel, 2018.

Optical frequency combs provide a direct and phase-coherent link between the optical spectral region of the electromagnetic spectrum (i.e., hundreds of THz frequencies) and the radio-frequency domain (MHz-GHz frequencies). As a result, they constitute a unique and powerful tool for various applications such as broadband high-resolution molecular spectroscopy, optical metrology, astrophysics,...

Université de Neuchâtel

Novel laser sources for metrology and spectroscopy

Gürel, Kutan ; Südmeyer, Thomas (Dir.)

Thèse de doctorat : Université de Neuchâtel, 2017.

Lasers have revolutionized the photonics field as a coherent intense light source, capable of performing many tasks. They are widely used in industrial and medical applications, as well as for scientific research. Two important areas of applications are frequency metrology and spectroscopy. Quantum cascade lasers (QCL) cover a wide spectral region in the mid-infrared where most molecules exhibit...