We investigate the use of two-dimensional photonic crystal slabs to improve the directionality of output coupling from planar waveguides and distributed-feedback lasers. We present the theory underlying the operation of such structures and design criteria for emission in desired directions. As an example, we demonstrate a vertical coupler that is integrated with an organic distributed-feedback laser, use computer simulations to find its coupling constant and efficiency, and then discuss its feasibility.
© 2000 Optical Society of America
Attila Mekis, A. Dodabalapur, R. E. Slusher, and J. D. Joannopoulos, "Two-dimensional photonic crystal couplers for unidirectional light output," Opt. Lett. 25, 942-944 (2000)