Amplified spontaneous emission and its restraint in a terawatt Ti:sapphire amplifier |
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| Authors: | ZHANG Weili WANG Yong WANG Qingyue CHAI Lu XING Qirong |
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| Institution: | Ultrafast Laser Laboratory, School of Precision Instruments & Optoelectronics Engineering, and Optoelectronics Information Science and Technology Lab, Tianjin University, Tianjin 300072, China |
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| Abstract: | Amplified spontaneous emission (ASE) and its restraint in a femtosecond Ti: sapphire chirped-pulse amplifier were investigated.
The noises arising from ASE were effectively filtered out in the spatial, temporal and spectral domain. Pulses as short as
38 fs were amplified to peak power of 1.4 MI. The power ratio between the amplified femtosecond pulse and the ASE was higher
than 106: 1. |
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| Keywords: | amplified spontaneous emission terawatt Ti: sapphire amplifier |
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