Chinese Journal of Lasers, Volume. 47, Issue 9, 901005(2020)
Broadband Output Characteristics of Nd∶Glass Multi-Pass Amplification System
Figures & Tables(18)
Fig. 1. Normalized distribution of input pulse under different energies. (a) Time waveform; (b) spectrum
Fig. 2. Normalized distribution of output pulse under different input energies. (a) Time waveform; (b) spectrum
Fig. 3. Normalized distribution of compressed pulse under different input energies. (a) Waveform of compressed pulses at the linearity coordinate; (b) waveform of compressed pulses at the logarithm coordinate
Fig. 4. Relative intensity distribution of input pulse under different spectral widths. (a) Time waveform; (b) spectrum
Fig. 5. Relative intensity distribution of output pulse under different input spectral widths. (a) Time waveform; (b) spectrum
Fig. 6. Relative intensity distribution of compressed pulse under different input spectral widths. (a) Waveform of compressed pulses at the linearity coordinate; (b) waveform of compressed pulses at the logarithm coordinate
Fig. 7. Relative intensity distribution of input pulse under different pulse widths. (a) Time waveform; (b) spectrum
Fig. 8. Relative intensity distribution of output pulse under different input pulse widths. (a) Time waveform; (b) spectrum
Fig. 9. Relative intensity distribution of compressed pulse under different input pulse widths. (a) Waveform of compressed pulses at the linearity coordinate; (b) waveform of compressed pulses at the logarithm coordinate
Fig. 13. Spatial and temporal distribution of normalized intensity of input pulse. (a) Time waveform at different coordinate points; (b) one-dimensional spatial distribution at different times; (c) spectrum at different coordinate points
Fig. 14. Spatial and temporal distribution of normalized intensity of output pulse. (a) Time waveform at different coordinate points; (b) one-dimensional spatial distribution at different times; (c) spectrum at different coordinate points
Table 1. Effect of input pulse energy on amplification system
View tableTable 1. Effect of input pulse energy on amplification system
Input energy /J Input width /ns Input spectral width /nm Output energy /J Output width /ns Output spectral width /nm B-integral Compressed pulse width /ns 10-8 SNR width /ps 0.4 5 10 2384.6 1.912 3.826 0.6971 0.402 10.86 0.6 5 10 3346.0 1.933 3.869 0.9942 0.412 11.10 0.8 5 10 4196.4 1.951 3.904 1.2649 0.426 11.32 1.0 5 10 4956.7 1.966 3.934 1.5133 0.444 11.52
Table 2. Effect of input pulse spectral width on amplification system
View tableTable 2. Effect of input pulse spectral width on amplification system
Input energy /J Input width /ns Input spectral width /nm Output energy /J Output width /ns Output spectral width /nm B-integral Compressed pulse width /ns 10-8 SNR width /ps 0.8 5 4 6487.2 3.761 3.009 1.1438 0.752 11.99 0.8 5 6 5586.9 3.026 3.633 1.1847 0.564 11.57 0.8 5 8 4814.5 2.403 3.609 1.2276 0.477 11.39 0.8 5 10 4196.4 1.951 3.904 1.2649 0.426 11.32
Table 3. Effect of input pulse width on amplification system
View tableTable 3. Effect of input pulse width on amplification system
Input energy /J Input width /ns Input spectral width /nm Output energy /J Output width /ns Output spectral width /nm B-integral Compressed pulse width /ns 10-8 SNR width /ps 0.8 4.0 10 4196.8 1.561 3.905 1.5812 0.452 11.57 0.8 4.5 10 4196.6 1.756 3.905 1.4055 0.436 11.42 0.8 5.0 10 4196.4 1.951 3.904 1.2649 0.426 11.32 0.8 5.5 10 4196.3 2.146 3.904 1.1499 0.419 11.23 0.8 6.0 10 4196.3 2.341 3.904 1.0540 0.414 11.18
Table 4. Inverting input pulses and predicting output pulses
View tableTable 4. Inverting input pulses and predicting output pulses
Ideal pulse energy /J Inversion times Inversion pulse energy /J Inversion pulse width /ns Inversion pulse spectrum width /nm B-integral Predicted pulse energy /J Predicted pulse width /ps Predicted pulse spectral width /nm Relative power deviation /% 2000 5 0.2993 4.017 8.034 0.5950 2000.0 1.900 3.801 0.0021 3000 6 0.4814 3.916 7.831 0.9125 3000.1 1.900 3.801 0.0023 4000 6 0.6901 3.786 7.570 1.2446 4000.1 1.900 3.802 0.0017
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Guan Xianghe, Zhang Yanli, Zhang Junyong, Zhu Jianqiang. Broadband Output Characteristics of Nd∶Glass Multi-Pass Amplification System[J]. Chinese Journal of Lasers, 2020, 47(9): 901005
Paper Information
Category: laser devices and laser physics
Received: Feb. 19, 2020
Accepted: --
Published Online: Sep. 16, 2020
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