@article{5536,
  author = {D. Oepts and R. J. Bakker and D. A. Jaroszynski and A. F. G. van der Meer and P. W. van Amersfoort},
  title = {Induced and Spontaneous Interpulse Phase Locking in a Free-Electron Laser},
  abstract = {We present the first experimental demonstration of phase locking between successive optical micro-pulses in a free-electron laser in which the electron pulses are separated by a fraction of the optical-cavity round-trip time. A Fox-Smith interferometer arrangement has been used to induce a high degree of interpulse phase coherence. Surprisingly, a substantial amount of coherence has also been observed without the phase-locking arrangement. A tentative explanation of this phenomenon is given.},
  year = {1992},
  journal = {Physical Review Letters},
  volume = {68},
  number = {24},
  pages = {3543-3546},
  month = {Jun 15},
  isbn = {0031-9007},
  doi = {10.1103/PhysRevLett.68.3543},
  language = {eng},
}