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Published on: July 12, 2017
High-temporal-quality injector generated by optical parametric amplification with hollow-core-fiber compression.
Yansui Huang1, Liwei Song, Ding Wang
1State Key Laboratory of High Field Laser Physics, Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai, China. hyswater@163.com
Optics Letters
|December 20, 2011
Summary
Researchers developed a novel laser injector producing 100 μJ, sub-10 femtosecond pulses with exceptional temporal contrast. This high-contrast laser injector is ideal for advanced few-cycle, high-power laser systems.
Area of Science:
- Laser Physics
- Ultrafast Optics
- Nonlinear Optics
Background:
- High-power laser systems require injectors with precise pulse characteristics.
- Achieving high temporal contrast is crucial for minimizing nonlinear effects and maximizing energy extraction.
Purpose of the Study:
- To demonstrate a new laser injector system capable of generating ultrashort pulses with high energy and superior temporal contrast.
- To provide a robust front-end for few-cycle, high-power laser systems.
Main Methods:
- Utilized an optical parametric amplification system.
- Employed a hollow-core fiber compressor for pulse compression.
- Incorporated a frequency-doubling crystal for pulse manipulation.
Main Results:
- Generated laser pulses with 100 μJ energy and <10 fs duration.
- Achieved a temporal contrast ratio exceeding 11 orders of magnitude.
- Produced pulses with a spectral bandwidth of ~160 nm centered near 800 nm.
Conclusions:
- The developed laser injector offers a broad spectral bandwidth and high temporal contrast.
- This system serves as an effective front-end for few-cycle, high-power laser applications.
