|Title||Induced and Spontaneous Interpulse Phase Locking in a Free-Electron Laser|
|Publication Type||Journal Article|
|Year of Publication||1992|
|Authors||D. Oepts, R.J Bakker, D.A Jaroszynski, A.FG van der Meer, P.W van Amersfoort|
|Journal||Physical Review Letters|
|Date Published||Jun 15|
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.
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