Abstract
Phase-locking of a multimode laser results in the emission of a train of short pulses of constant shape1. This can be achieved by modulating the cavity losses at a frequency matched to the transit time in the resonator. The short pulse circulating in a pulsed laser can be compressed2 by inserting a Kerr medium in the laser cavity, provided self-phase modulation in the Kerr medium is properly adjusted to the dispersion of the gain medium. Self-phase modulation is also known1 to degrade the short pulse shape in several mode-locked solid state lasers.
© 1985 Optical Society of America
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