Lasing mechanisms in organic photonic crystal lasers with two-dimensional distributed feedback

Lasing in nanoimprinted two-dimensional photonic crystal band-edge lasers

V. Reboud, J. Romero-Vivas, P. Lovera, N. Kehagias, T. Kehoe, G. Redmond, and C. M. Sotomayor Torres Catalan Institute of Nanotechnology, Campus UAB, Edifici CM3, ES 08193—Barcelona, Spain CEA-LETI-Minatec Grenoble, 17 rue des Martyrs, 38054 Grenoble, France Surface Physics Division, Faculty of Physics, Adam Mickiewicz University, ul. Umultowska 85, Poznan 61-614, Poland Tyndall National Instit...

Organic semiconductor lasers with two-dimensional distributed feedback

Photograph of a mechanically flexible 2D-DFB laser made from the conjugated polymer MeLPPP. The laser is optically pumped well above the threshold for amplified spontaneous emission. The complex far-field emission pattern (blue-green) results from a large detuning between the resonance wavelength and the gain maximum. • A nearly diffraction limited surface emitting conjugated polymer laser util...

Influence of index contrast in two dimensional photonic crystal lasers

Two-Dimensional Photonic Crystal Confined Vertical-Cavity Surface-Emitting Lasers

The two-dimensional photonic crystal (2-D PhC) structure has been investigated as a method for lateral mode control of vertical-cavity surface-emitting lasers (VCSELs). The 2-D PhC structures were designed using an equivalent index model developed for photonic crystal fibers combined with a plane wave expansion method. The etching depth dependence of the PhC structure was incorporated for the f...

Spatial modal control of two-dimensional photonic crystal Bragg lasers.

We investigate the modal losses and field distributions of different order transverse modes supported by the photonic crystal Bragg structure using a transfer matrix method. We find that only the fundamental transverse mode has a single-lobed near field and far field and there exists a trade-off between ensuring lasing in the fundamental transverse mode and reducing the threshold. Employing the...