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Q: Fachverband Quantenoptik und Photonik

Q 55: Poster III

Q 55.21: Poster

Thursday, March 5, 2009, 16:30–19:00, VMP 8 Foyer

Numerical model of a pulsed loop-oscillator with gain grating — •Robert Elsner and Martin Ostermeyer — Institute for Physics and Astronomy, University of Potsdam, Karl-Liebknecht-Str 24/25, 14476 Potsdam, Germany

We present a model of a pulsed loop oscillator that is coupled to a seed laser via gain grating. Such a loop oscillator emits short pulses due to a passive Q-switch realized by the transient diffraction efficiency of the gain grating. Because the gain grating’s position is not fixed it can compensate for fluctuations of the resonator length and thus might be applicable for frequency stabilization. Thus the scheme has the potential for spectrally stable operation without the need for any active stabilization circuit when coupled to a frequency stable master. A set of nonlinear wave equations, their respective boundary conditions and rate equations are used for the numerical model. Options to reach a spectrally resolved solution within such a model are discussed.

[1] M. J. Damzen et al., Opt. Lett. 20, 1704- (1995)

[2] P. Sillard et al., IEEE J. Quantum Electron. 34, 465-472 (1998)