Relaxation oscillation of planar waveguide DBR laser with 1D photonic crystal

Agnieszka Mossakowska-Wyszyńska; Paweł Czuma; Paweł Szczepański

doi:10.1117/12.621629

12 October 2005 Relaxation oscillation of planar waveguide DBR laser with 1D photonic crystal

Agnieszka Mossakowska-Wyszyńska, Paweł Czuma, Paweł Szczepański

Proceedings Volume 5950, Photonic Crystals and Fibers; 595019 (2005) https://doi.org/10.1117/12.621629
Event: Congress on Optics and Optoelectronics, 2005, Warsaw, Poland

Abstract

In this paper, we present a semi analytical, approximate model of relaxation oscillation of Nd³⁺:YAG DBR (Distributed Bragg Reflector) laser with one dimensional photonic crystals (1D PC). In our theoretical model, we take into account the gain saturation effect, transversal and longitudinal field distribution. With the help of time dependent laser rate equations, we obtain an approximate formulas relating the damping rate and frequency of relaxation oscillations to the output power and laser parameters such as photonic crystal geometry, losses, and reflectivity coefficient of laser mirror. With this approximate formulas, we obtain the laser characteristics, which reveal an optimal feedback strength for DBR cavity laser structure.

Citation Download Citation

Agnieszka Mossakowska-Wyszyńska, Paweł Czuma, and Paweł Szczepański "Relaxation oscillation of planar waveguide DBR laser with 1D photonic crystal", Proc. SPIE 5950, Photonic Crystals and Fibers, 595019 (12 October 2005); https://doi.org/10.1117/12.621629

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