Numerical Investigation of the Temporal Contrast in ps-OPCPA with Compact Double BBO Arrangement
Source abstract
Abstract
The picosecond optical parametric chirped pulse amplifier (ps-OPCPA) with double BBO arrangement can support the ultrabroad spectrum even under a relatively long pump pulse duration (∼100 ps). In this work, five-wave-coupled equations taking into consideration different phase matching conditions between the parametric superfluorescence (PSF) and the signal are proposed to investigate the temporal contrast in ps-OPCPA schemes. Both the temporal contrast and the amplified spectrum are numerically analyzed in double BBO arrangements with four phase matching conditions. Numerical results show that the high temporal contrast and ultrabroad spectrum can be simultaneously realized by choosing the proper phase matching geometry in a double BBO arrangement. The numerical investigation here relaxes the requirement of very short pump pulses in ps-OPCPA, which can provide beneficial guidance for the design and construction of ps-OPCPA.
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Research context
OpenAlex topics: Laser-Matter Interactions and Applications · Advanced Fiber Laser Technologies · Solid State Laser Technologies
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
State Key Laboratory of High Field Laser Physics and CAS Center for Excellence in Ultra-Intense Laser Science, Shanghai Institute of Optics and Fine Mechanics (SIOM), Chinese Academy of Sciences (CAS), Shanghai 201800, China
Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing 100049, China
Funding
National Key Research and Development Program of China · The Strategic Priority Research Program of the Chinese Academy of Sciences · National Natural Science Foundation of China · Program of Shanghai Academic Research Leader · Shanghai Municipal Science and Technology Major Project · Shanghai Sailing Program · Natural Science Foundation of Shanghai · International Partnership Program of Chinese Academy of Sciences
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