First lasing of the Jefferson Lab IR Demo FEL

被引：34

作者：

Benson, S ^{[1
]}

Biallas, G ^{[1
]}

Bohn, C ^{[1
]}

Douglas, D ^{[1
]}

Dylla, HF ^{[1
]}

Evans, R ^{[1
]}

Fugitt, J ^{[1
]}

Hill, R ^{[1
]}

Jordan, K ^{[1
]}

Krafft, G ^{[1
]}

Legg, R ^{[1
]}

Li, R ^{[1
]}

Merminga, L ^{[1
]}

Neil, GR ^{[1
]}

Oepts, D ^{[1
]}

Piot, P ^{[1
]}

Preble, J ^{[1
]}

Shinn, M ^{[1
]}

Siggins, T ^{[1
]}

Walker, R ^{[1
]}

Yunn, B ^{[1
]}

机构：

[1] Thomas Jefferson Natl Accelerator Facil, Newport News, VA 23606 USA

来源：

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT | 1999年 / 429卷 / 1-3期

关键词：

lasing; free-electron laser; recirculation;

D O I：

10.1016/S0168-9002(99)00061-3

中图分类号：

TH7 [仪器、仪表];

学科分类号：

0804 ; 080401 ; 081102 ;

摘要：

As reported in previous work (Neil, Proceedings of the 1998 European Particle Accelerator Conference, Stockholm, Sweden, 1998, p. 88; Shinn, in: Free-Electron Laser Challenges, Proceedings of SPIE, vol. 2988, 1997, p. 170), Jefferson Lab is building a free-electron laser capable of generating a continuous wave kilowatt laser beam. The driver-accelerator consists of a superconducting, energy-recovery accelerator. The initial stage of the program was to produce over 100 W of average power with no recirculation. In order to provide maximum gain the initial wavelength was chosen to be 5 mu m and the initial beam energy was chosen to be 38.5 MeV. On June 17. 1998, the laser produced 155 W cw power at the laser output with a 98% reflective output coupler. On July 28th, 311 W cw power was obtained using a 90% reflective output coupler. A summary of the commissioning activities to date as well as some novel lasing results will be summarized in this paper. Present work is concentrated on optimizing lasing at 5 mu m, obtaining lasing at 3 mu m, and commissioning the recirculation transport in preparation for kilowatt lasing this fall. (C) 1999 Elsevier Science B.V. All rights reserved.

引用

页码：27 / 32

页数：6

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