Development of high-average power FEL amplifiers using sheet electron beams and short-period wigglers

1990 ◽  
Author(s):  
D.J. Radack ◽  
S.W. Bidwell ◽  
T.M. Antonsen ◽  
J.H. Booske ◽  
Y. Carmel ◽  
...  
Keyword(s):  
Electron Beams ◽  
Average Power ◽  
High Average Power ◽  
Short Period

scholarly journals Design of high-average-power near-millimeter free electron laser oscillators using short period wigglers and sheet electron beams

1990 ◽  
Vol 18 (3) ◽  
pp. 399-415 ◽  
Author(s):  
J.H. Booske ◽  
D.J. Radack ◽  
T.M. Antonsen ◽  
S.W. Bidwell ◽  
Y. Carmel ◽  
...  
Keyword(s):  
Free Electron ◽  
Free Electron Laser ◽  
Electron Beams ◽  
Average Power ◽  
High Average Power ◽  
Short Period ◽  
Laser Oscillators

scholarly journals FLASHForward: plasma wakefield accelerator science for high-average-power applications

2019 ◽  
Vol 377 (2151) ◽  
pp. 20180392 ◽  
Author(s):  
R. D'Arcy ◽  
A. Aschikhin ◽  
S. Bohlen ◽  
G. Boyle ◽  
T. Brümmer ◽  
...  
Keyword(s):  
High Performance ◽  
Performance Test ◽  
Electron Beams ◽  
Average Power ◽  
Particle Beam ◽  
High Average Power ◽  
Test Bed ◽  
Operational Parameters ◽  
Plasma Background ◽  
Plasma Wakefield

The FLASHForward experimental facility is a high-performance test-bed for precision plasma wakefield research, aiming to accelerate high-quality electron beams to GeV-levels in a few centimetres of ionized gas. The plasma is created by ionizing gas in a gas cell either by a high-voltage discharge or a high-intensity laser pulse. The electrons to be accelerated will either be injected internally from the plasma background or externally from the FLASH superconducting RF front end. In both cases, the wakefield will be driven by electron beams provided by the FLASH gun and linac modules operating with a 10 Hz macro-pulse structure, generating 1.25 GeV, 1 nC electron bunches at up to 3 MHz micro-pulse repetition rates. At full capacity, this FLASH bunch-train structure corresponds to 30 kW of average power, orders of magnitude higher than drivers available to other state-of-the-art LWFA and PWFA experiments. This high-power functionality means FLASHForward is the only plasma wakefield facility in the world with the immediate capability to develop, explore and benchmark high-average-power plasma wakefield research essential for next-generation facilities. The operational parameters and technical highlights of the experiment are discussed, as well as the scientific goals and high-average-power outlook. This article is part of the Theo Murphy meeting issue ‘Directions in particle beam-driven plasma wakefield acceleration’.

A New Type S-band High-average-power Broadband Klystron

2011 ◽  
Vol 33 (7) ◽  
pp. 1727-1732 ◽  
Author(s):  
Zhao-chuan Zhang ◽  
Bao-li Shen ◽  
Xiao-juan Yu ◽  
Feng Zhang ◽  
Yun-ping Huang
Keyword(s):  
Average Power ◽  
High Average Power ◽  
New Type

scholarly journals An Eye-Safe, SBS-Free Coherent Fiber Laser LIDAR Transmitter with Millijoule Energy and High Average Power

Photonics ◽  
2021 ◽  
Vol 8 (1) ◽  
pp. 15
Author(s):  
Mehmetcan Akbulut ◽  
Leonid Kotov ◽  
Kort Wiersma ◽  
Jie Zong ◽  
Maohe Li ◽  
...  
Keyword(s):  
Fiber Laser ◽  
Repetition Rate ◽  
Peak Power ◽  
Figure Of Merit ◽  
Current System ◽  
Glass Fibers ◽  
Average Power ◽  
High Gain ◽  
Short Length ◽  
High Average Power

We report on an eye-safe, transform-limited, millijoule energy, and high average power fiber laser. The high gain and short length of the NP phosphate-glass fibers enable the SBS-free operation with kW level peak power. The output energy is up to 1.3 mJ, and the average power is up to 23 W at an 18 kHz repetition rate with 600 ns pulses (peak power > 2.1 kW). The PER is ≈16 dB and the M2 of the beam is 1.33 × 1.18. The coherent LIDAR Figure Of Merit (FOM) is 174 mJ*sqrt(Hz), which to our knowledge is the highest reported for a fiber laser. We also report 0.75 mJ energy and >3.7 kW peak power with down to 200 ns pulses and up to 1.21 mJ energy with a 3–5 kHz repetition rate operation of the current system.

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