Femtosecond Chirped Pulse Oscillators for high-speed Photonic device fabrication

The invention of the Chirped Pulse Oscillator (CPO) concept enabled the generation of sub-50 fs laser pulses at MHz repetition rates with an energy approaching the μJ-level directly out of an oscillator. Such laser sources close the gap between low-energy oscillators on the one hand and complex amplifier systems on the other hand and are perfectly suited for high-speed fabrication of Photonic devices with feature sizes down to the sub-micron regime. In this paper we review the latest advances in CPO development and report on our capabilities to utilize those sources to fabricate integrated devices in a variety of passive as well as active materials.