SAMOP 2023 – wissenschaftliches Programm
Bereiche | Tage | Auswahl | Suche | Aktualisierungen | Downloads | Hilfe
Q: Fachverband Quantenoptik und Photonik
Q 10: Photonics I
Q 10.5: Vortrag
Montag, 6. März 2023, 18:15–18:30, E001
Towards intracavity optical parametric amplification of a Ti:sapphire laser oscillator — •Robin Mevert1,2, Jintao Fan1,2, Fridolin Jakob Geesmann1,2, Han Rao1,2, David Zuber1,2, Tino Lang3, and Uwe Morgner1,2,4 — 1Leibniz Universität Hannover, Institute of Quantum Optics, Hannover, Germany — 2Leibniz Universität Hannover, Cluster of Excellence PhoenixD (Photonics, Optics, and Engineering-Innovation Across Disciplines), Hannover, Germany — 3Deutsches Elektronen-Synchrotron DESY, Hamburg, Germ — 4Laser Zentrum Hannover e.V., Hannover, Germany
Nowadays, Ti:sapphire oscillators still play a major role as a typical work horse for the generation of femtosecond laser pulses in the near-infrared since its broadband emission range can support pulse durations in the sub-10fs range. Unfortunately, power scaling of Ti:sapphire lasers is limited by the thermal lensing effect inside the Ti:sapphire crystal as well as the additional gain-narrowing effects. On the other hand, synchronously-pumped femtosecond optical parametric oscillators (OPOs) in the near-infrared are easily power scalable since there are only nonlinear absorption effects inside the gain material. This fact is utilized nowadays in optical parametric amplifiers which are often used to amplify the output power of a Ti:Sapphire laser. However, the main drawback is the drastic decrease in repetition rate towards the kHz range which causes additional obstacles for later applications such as high-harmonic generation. In this work, we investigate the possibility to use the parametric gain of a BBO-crystal to amplify the Ti:sapphire laser inside a single cavity.