The Free-Electron-Laser user facility FELIX

Abstract The Free Electron Laser for Infrared eXperiments FELIX presents to its users a versatile source of radiation in the infrared and far-infrared spectral regions. Presently, the wavelength range of operation extends from 5 to 110 μm (2000−90 cm−1). The wavelength is continuously tunable over an octave in a few minutes. The output normally consists of macropulses of 5–10 μs duration, formed by a train of micropulses of a few ps length. Average power in the macropulses is of order 10 kW, peak power in the micropulses is in the MW range. The temporal and spectral characteristics of the micropulses can be controlled by varying the synchronism between the electron pulses and the optical pulses circulating in the laser cavity. Transform-limited pulse lengths in the range 2–20 ps can be generated. Long-range coherence has been induced by phase-locking successive micropulses, and narrow-band, essentially single-mode, radiation has been selected from the output.

[1]  B. Faatz,et al.  Extension of the Free-Electron Laser-Amplifier Code Tda to Resonator Configurations , 1993 .

[2]  T. Klaassen,et al.  Free electron laser induced two‐photon absorption in Hg1−xCdxTe , 1992 .

[3]  Thomas C. Marshall,et al.  Free Electron Lasers , 1985 .

[4]  Kwang-Je Kim,et al.  The Evolution and Limits of Spectral Bandwidth in Free Electron Lasers , 1990 .

[5]  N. Piovella,et al.  Superradiant short-pulse propagation in the free-electron laser oscillator , 1991 .

[6]  D. Jaroszynski,et al.  Infrared free electron laser measurement of the photon drag effect in P-silicon , 1992 .

[7]  J. Eckstein,et al.  Optical Autocorrelation Function of a 3.2-μm Free-Electron Laser , 1982 .

[8]  D. Jaroszynski,et al.  Broadband tunability of a far‐infrared free‐electron laser , 1993 .

[9]  Oepts,et al.  Coherent startup of an infrared free-electron laser. , 1993, Physical review letters.

[10]  Oepts,et al.  Experimental observation of limit-cycle oscillations in a short-pulse free-electron laser. , 1993, Physical review letters.

[11]  Eliel,et al.  Sum-frequency generation with a free-electron laser: A study of gallium phosphide. , 1994, Physical review. A, Atomic, molecular, and optical physics.

[12]  M. Scully,et al.  Coherent transients in the free-electron laser: Laser lethargy and coherence brightening☆ , 1979 .

[13]  J. M. J. Madey,et al.  Lawson-Penner limit and single passage free electron lasers performances , 1984 .

[14]  W. Colson,et al.  Phase locking in an infrared short-pulse free-electron laser , 1990 .

[15]  E. O. Schulz-Dubois,et al.  Laser Handbook , 1972 .

[16]  Charles A. Brau.  Free-electron lasers , 1986 .

[17]  Oepts,et al.  Induced and spontaneous interpulse phase locking in a free-electron laser. , 1992, Physical review letters.

[18]  D. Jaroszynski,et al.  Short-pulse effects in a free-electron laser , 1994 .

[19]  Knippels,et al.  Dynamic desynchronization of a free-electron laser resonator. , 1993, Physical review. E, Statistical physics, plasmas, fluids, and related interdisciplinary topics.