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Logo: Institut für Quantenoptik/Leibniz Universität Hannover
Logo Leibniz Universität Hannover
Logo: Institut für Quantenoptik/Leibniz Universität Hannover
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Noncollinear Parametric Oscillator (NOPO)

NOPO’s are light sources, covering an ultra wide and ultra fast tunability as well as the flexibility in spectral width from a narrowband to an ultra broadband spectrum. Our system is build up in a noncollinear configuration to support an ultra wide and fast tunability. Because of the power scalability of our system we are able to extract more than 3 W from the visible up to the infrared part of the spectrum. A unique feature is the speed of tuning. As shown in the figure we are able to ramp the center wavelength of the fs -light pulses with more than 100 000 nm/s. 

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OPCPA

The frond-end of our Optical Parametric Chirped Pulse Amplification (OPCPA) is a broadband Ti:sapphier oscillator (link), which delivers the seed for the parametric amplification and a small fraction at 1030 nm provides the seed for a homebuilt regenerative amplifier (link). 

With a double-stage NOPA setup, where both pump frequencies are the SHG of 1030 nm, we measured CEP stabilized two-cycle pulses with sub 6 fs of pulse duration and more than 3 µJ pulse energy at 143 kHz. 

A double-stage NOPA pumped with the SHG and the THG of 1030 nm, delivers 1 µJ at 200 kHz with a spectrum spanning from 430 nm to 1.3 µm supporting an almost single-cycle pulse. We measured pulse durations of sub 5 fs using a broadband double chirped mirror pair for pulse compressing of a part of the whole output spectrum.

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Contact / Responsible

For more information or in case of any questions please contact Anne Harth and Tino Lang.

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