Hannover 2020 – scientific programme
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K: Fachverband Kurzzeit- und angewandte Laserphysik
K 4: Poster
K 4.12: Poster
Tuesday, March 10, 2020, 16:30–18:30, f428
Femtosecond noncollinear optical parametric oscillator in the visible spectral range — •Robin Mevert1, Christian Markus Dietrich1,2, José R.C. Andrade1,2, Luise Beichert1,2, and Uwe Morgner1,2 — 1Leibniz University Hannover, Institute for Quantum Optics, Hannover, Germany — 2Cluster of Excellence PhoenixD, Hannover, Germany
We present a widely-tunable non-collinear optical parametric oscillator (NOPO) in the visible spectral range. NOPOs are very interesting for spectroscopic applications due to their ability to create frequency tunable ultrashort laser pulses at wavelengths unreachable for most available lasers. This is especially important for the visible spectral range. By changing the resonator length the center wavelength of the signal can be tuned from 430 nm to 690 nm. The NOPO is pumped by the third harmonic (343 nm) of a two-stage fiber amplifier seeded by a nonlinear polarization rotating fiber oscillator at 1030 nm and a repitition rate of 50.2 MHz. An average power of 3W UV-pump-light is used to create average output powers up to 485 mW at 605 nm.