Drive laser system for a photocathode at IHEP

Li Xiaoshen; Xu Jinqiang; Sun Darui

doi:10.11884/HPLPB201830.170344

Volume 30 Issue 2

Feb. 2018

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Li Xiaoshen, Xu Jinqiang, Sun Darui. Drive laser system for a photocathode at IHEP[J]. High Power Laser and Particle Beams, 2018, 30: 021001. doi: 10.11884/HPLPB201830.170344

Citation:

Li Xiaoshen, Xu Jinqiang, Sun Darui. Drive laser system for a photocathode at IHEP[J]. High Power Laser and Particle Beams, 2018, 30: 021001. doi: 10.11884/HPLPB201830.170344

Li Xiaoshen, Xu Jinqiang, Sun Darui. Drive laser system for a photocathode at IHEP[J]. High Power Laser and Particle Beams, 2018, 30: 021001. doi: 10.11884/HPLPB201830.170344

Citation:

Li Xiaoshen, Xu Jinqiang, Sun Darui. Drive laser system for a photocathode at IHEP[J]. High Power Laser and Particle Beams, 2018, 30: 021001. doi: 10.11884/HPLPB201830.170344

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Drive laser system for a photocathode at IHEP

doi: 10.11884/HPLPB201830.170344

Li Xiaoshen^{1, 2
,},
Xu Jinqiang^{1
,
,},
Sun Darui¹

1.
Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049, China
2.
College of Engineering Science, University of Chinese Academy of Sciences, Beijing 100049, China

Received Date: 2017-08-31
Rev Recd Date: 2017-10-23
Publish Date: 2018-02-15

Abstract

Abstract

The Energy Recovery Linac (ERL) can produce continuous electron bunches with low emittance at high average current. The photocathode electron gun needs high repetition rate, high average power drive laser system. Adopting advanced fiber laser technologies, especially using Yb-doped photonic crystal fiber in the laser system, a high repetition frequency, high average power laser system was set up. By using chirped pulse amplification (CPA) and optimizing the design, a 100 MHz oscillator and a 1.3 GHz oscillator were integrated into one laser system. The structure of the whole laser system can be simplified and easy to operate. The second harmonic generation (SHG) efficiencies of the laser system at two different repetition rates have already reached 50% and 30%, respectively. In addition, more than 5 W green light has been achieved, which meets the needs of test platform of photocathode at IHEP.
- photocathode,
- drive laser for a photocathode,
- fiber laser,
- photonic crystal fiber,
- fiber amplifier

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References(10)

References

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