期刊
PHOTONICS
卷 8, 期 11, 页码 -出版社
MDPI
DOI: 10.3390/photonics8110503
关键词
mid-infrared; ultrafast lasers; parametric amplification; non-linear optics; materials
类别
资金
- Fundacao para a Ciencia e Tecnologia [PD/BD/135177/2017]
- Laserlab Portugal (National Roadmap of Research Infrastructures) [PINFRA/22124/2016]
- European Union's Horizon 2020 research and innovation programme [871124]
- Fundacao para a Ciencia e Tecnologia at Instituto Superior Tecnico [PD/00505/2012]
- Fundação para a Ciência e a Tecnologia [PD/BD/135177/2017, PINFRA/22124/2016] Funding Source: FCT
The design of an ultrafast optical parametric chirped pulse amplifier (OPCPA) operating at 3 μm is presented, capable of generating few-cycle pulses and multi-mJ output energy with sufficient bandwidth for compression. Compression using a simple bulk material enables reaching close to the pulse Fourier-transform limited duration, paving the way for high-energy, ultrafast mid-infrared pulses.
We present the design of an ultrafast optical parametric chirped pulse amplifier (OPCPA) operating at 3 mu m yielding few-cycle pulses and multi-mJ output energy. This design demonstrates that with a configuration of a single crystal or combination of crystals (KTA and MgO:LN) it is possible to achieve output energies above the mJ with sufficient bandwidth to allow compression to just 5-optical cycles. Here, we consider a 1 mu m mJ-level picosecond chirped pulse amplifier (CPA), a typical pumping source for this type of non-linear amplifiers. Compression with a simple bulk material enables reaching close to the pulse Fourier-transform limited duration, paving the way to high energy, ultrafast mid-infrared pulses.
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