Models for self-limited additive pulse mode-locking
1995; Elsevier BV; Volume: 114; Issue: 5-6 Linguagem: Inglês
10.1016/0030-4018(94)00639-c
ISSN1873-0310
AutoresFarzana I. Khatri, John D. Moores, G. Lenz, H. A. Haus,
Tópico(s)Solid State Laser Technologies
ResumoWe analyze Self-Limited Additive Pulse Mode-locked (SLAPM) lasers. SLAPM is APM in which the effective fast saturable absorption rolls over to become fast saturable gain for the pulse peaks, providing an important stabilizing mechanism. The pulses in a SLAPM laser tend to look Gaussian at the top but maintain exponential wings and have time-bandwidth products larger than that of a sech2-shaped pulse. We compare a simple analytic theory with two discrete computer simulations of SLAPM lasers. We show that despite large nonlinear phase shifts per pass in the fiber (close to π) and the lumped nature of the elements in the laser, the analytic model is applicable. Both the simulated pulse parameters and shapes show good agreement with the theory.
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