A model is presented for the pulse-shaping dynamics in an actively mode-locked laser in which the losses are AM modulated at two harmonic frequencies differing by the cavity fundamental mode spacing and is applied to the case of third and fourth harmonics. Coupling to eight side modes is demonstrated. Computer simulations are implemented for a linear resonator which show the effects of modulation and gain for different initial conditions of field-amplitude and phases.
Two-fold mode-locking by amplitude modulation at neighbouring harmonics of the laser-cavity fundamental frequency
DI TRAPANI, PAOLO
1997-01-01
Abstract
A model is presented for the pulse-shaping dynamics in an actively mode-locked laser in which the losses are AM modulated at two harmonic frequencies differing by the cavity fundamental mode spacing and is applied to the case of third and fourth harmonics. Coupling to eight side modes is demonstrated. Computer simulations are implemented for a linear resonator which show the effects of modulation and gain for different initial conditions of field-amplitude and phases.
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UGOV 1502596. APPLIED PHYSICS. B, LASERS AND OPTICS, vol. 84, p. 439-446.pdf
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