Generation of TW-scale mid-IR femtosecond pulses using a dual-chirped optical parametric amplification

2018 ◽  
Author(s):  
Eiji J. Takahashi ◽  
Yuxi Fu ◽  
Katsumi Midorikawa ◽  
Akira Suda ◽  
kotaro Nishimura
Keyword(s):  
Parametric Amplification ◽  
Optical Parametric Amplification ◽  
Femtosecond Pulses ◽  
Optical Parametric

scholarly journals High-energy mid-infrared femtosecond pulses at 3.3 μm directly generated by dual-chirped optical parametric amplification

2019 ◽  
Vol 205 ◽  
pp. 01008
Author(s):  
Yuxi Fu ◽  
Kotaro Nishimura ◽  
Bing Xue ◽  
Akira Suda ◽  
Katsumi Midorikawa ◽  
...  
Keyword(s):  
Repetition Rate ◽  
Peak Power ◽  
High Energy ◽  
Parametric Amplification ◽  
Cycle Duration ◽  
Optical Parametric Amplification ◽  
Femtosecond Pulses ◽  
Mid Infrared ◽  
Optical Parametric ◽  
Limited Duration

By employing a dual-chirped optical parametric amplification (DC-OPA) using MgO:LiNbO3 crystals, we generate 31 mJ mid-infrared (MIR) pulses at 3.3 um with a repetition rate of 10 Hz. After passing through a CaF2 bulk compressor which has 70% throughput efficiency, these MIR pulses are compressed to 70 fs (6.3 optical cycles), which is close to the transform-limited duration of 66 fs. Thus, the peak power is evaluated to be 0.3 TW. Our results present notable progress in the generation of high-energy MIR pulses and prove that DC-OPA is a superior method for efficiently generating MIR pulses with few-cycle duration and TW-class peak power.

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