Hannover 2020 – scientific programme
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Q: Fachverband Quantenoptik und Photonik
Q 22: Posters: Quantum Optics and Photonics II
Q 22.6: Poster
Tuesday, March 10, 2020, 16:30–18:30, Empore Lichthof
A cw-OPO system for ultimate M-IR frequency resolution — •Ulrich Eismann1, David B. Foote2, Matt Cich2, Walter Hurlbut2, Felix Rohde1, and Chris Haimberger2 — 1TOPTICA Photonics AG, Lochhamer Schlag 19, D-82166 Graefelfing, Germany — 2TOPTICA Photonics, Inc., 5847 County Rd. 41, Farmington, NY 14425, USA
Continuous-wave optical parametric oscillators (cw-OPOs) are versatile light sources for quantum technologies. They deliver tunable narrow-band light in a large wavelength range, and output powers ranging from high-flux heralded photon sources up into the multi-10-Watt class have been demonstrated.
Here, we present a commercial cw-OPO (TOPTICA DLC TOPO) emitting up to 4 W in the 1.45–4.0 µm range and results of frequency referencing. The absolute accuracy of our current scheme is in the low 10−3 cm−1 range (≈ 100 MHz). It is given by the accuracy and resolution of the wavelength meter, and the abundance of nearby reference peaks. Using a frequency comb as a reference, ultimate accuracies can be achieved. At its extreme, the scheme allows phase-coherent links between the M-IR and other wavelength ranges of choice [1]. We will discuss locking of the system to a commercial comb system DFC CORE.
[1] E. V. Kovalchuk et al., Optics Letters 30, 3141-3143 (2005).