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Power-amplification and super-continuum generation with semiconductor disk lasers

Self-mode-locked vertical-external-cavity surface-emitting lasers (short SML VECSELs) have drawn much attention in the semiconductor laser community. These lasers based on semiconductor disks (also: SDLs) provide very short laser pulses even without a commonly used semiconductor saturable absorber mirror (SESAM). Yet, not a widely spread laser type, SML VECSELs are expected to be very useful for various applications, such as material processing or spectroscopy, that require pulsed laser light.

Within our research, we want to improve the performance of SML VECSELs and to achieve external fiber-based amplification of our laser light and super-continuum generation.

We offer you project work related to the amplification of pulsed light from VECSELs. The task is to inject the output from our VECSEL into a home-made fiber-amplifier system, which is under construction and has to be optimized. Such an amplification technique is realized in two stages, to get strong pulsed laser light out, which can be then used for super-continuum generation.

What will you learn in our team: You will use sophisticated optoelectronic devices in order to characterize laser light, and you will become acquainted with fiber optics, lasers and analyzing tools. Your first practical experience in the field of laser research and development will equip you with insight and understanding regarding application-oriented work in the field of photonics.

Feel free to contact us: Dr. Arash Rahimi-Iman