Antiresonant nonlinear mirror for passive laser modelocking

Coherent light generators – Particular beam control device – Mode locking

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372 21, 372 22, 372 30, 372 33, 372 94, 372 99, 372105, 372106, 372108, H01S 3098

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051193833

ABSTRACT:
An antiresonant nonlinear mirror to replace one mirror of a laser for passive modelocking of the laser, the antiresonant nonlinear mirror comprising: a beam splitter for coupling the mirror to a laser cavity; a mirror arrangement for defining an optical ring with the beam splitter in which two light beams produced by the beam splitter in response to a light beam from the laser cavity can counterpropagate around the ring; an intensity dependent anisotropic nonlinear element disposed within the ring; and a polarization sensitive element disposed within the ring for adjusting the birefringence thereof to produce spontaneous modelocking in the coupled laser cavity.

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