Erlangen 2018 – scientific programme
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Q: Fachverband Quantenoptik und Photonik
Q 64: Quantum Optics and Photonics IV
Q 64.4: Talk
Friday, March 9, 2018, 11:15–11:30, K 0.016
Generation of third harmonic and photon triplets in gas-filled hollow core photonic crystal fibre — •Andrea Cavanna1, Cameron Okoth1, Michael H. Frosz1, Maria V. Chekhova1,2,3, Gerd Leuchs1,2, Nicolas Y. Joly1,2, and Philip St.J. Russell1,2 — 1Max Planck Institute for the Science of Light, Staudtstr. 2, 91058 Erlangen, Germany — 2University of Erlangen-Nuremberg, Staudtstr. 7/B2, 91058 Erlangen, Germany — 3Department of Physics, Moscow State University, 119991 Moscow, Russia
We present a single-ring photonic crystal fibre designed for phase-matched third harmonic generation from pump light at 1596 nm, as well as generation of photon triplets when pumped at 532 nm. The core region is surrounded by 12 capillaries with inner diameter approximately 6.7 µm and wall thickness 350 nm. The fiber guides, with losses below 1 dB/m, both broadband NIR radiation and visible light within a narrow spectral region around 532 nm. The 38 µm diameter core is filled with xenon gas, and the fibre offers convenient pressure-tunable dispersion and phase-matching for conversion from 532 to 1596 nm and vice-versa. We report generation of tunable third harmonic from an LP01-like pump mode to an LP03-like third harmonic mode as well as measurements of the luminescence at the single photon level for the reverse process.