Energy extraction efficiency of broad-band laser in neodymium glass laser amplifiers

FAN Guangxin; SUI Zhan; ZHANG Bin; GAO Yanqi

doi:10.11884/HPLPB201931.190095

Volume 31 Issue 11

Oct. 2019

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FAN Guangxin, SUI Zhan, ZHANG Bin, et al. Energy extraction efficiency of broad-band laser in neodymium glass laser amplifiers[J]. High Power Laser and Particle Beams, 2019, 31: 111001. doi: 10.11884/HPLPB201931.190095

Citation:

FAN Guangxin, SUI Zhan, ZHANG Bin, et al. Energy extraction efficiency of broad-band laser in neodymium glass laser amplifiers[J]. High Power Laser and Particle Beams, 2019, 31: 111001. doi: 10.11884/HPLPB201931.190095

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Energy extraction efficiency of broad-band laser in neodymium glass laser amplifiers

doi: 10.11884/HPLPB201931.190095

1.
Shanghai Institute of Laser Plasma, CAEP, Shanghai 201800, China
2.
College of Electronics and Information Engineering, Sichuan University, Chengdu 610064, China

Received Date: 2019-04-09
Rev Recd Date: 2019-08-26
Publish Date: 2019-11-15

Abstract

Abstract

Based on the broad-band pulsed laser amplification model of neodymium glass, the relationship between energy extraction efficiency of the pulsed laser amplification and input fluence, pulse widths and spectral bandwidths (or wavelength distributions) was studied by numerical simulation. The calculation results show that the energy extraction efficiency of the broadband amplification in neodymium glass increases with the increase of the input luminous flux, and finally tends to a certain value. For the medium with uniform broadening, the energy extraction efficiency decreases with the increase of the bandwidth. For the medium with non-uniform broadening, the energy extraction efficiency increases gradually with the increase of the bandwidth, reaching the maximum value, after which it declines. For a mixed widened medium with a uniform widened to non-uniform widened linewidth ratio of 0.1, using a broadband laser can achieve an efficiency improvement of approximately 80% under saturated flux input conditions.
- broadband laser,
- energy extraction efficiency,
- neodymium glass,
- amplification model

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References(11)

References

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