InP photonic crystal membrane structures

Quasi-2-dimensional photonic band gap waveguides have been etched onto InGaAsP membranes. A variety of structures were formed, with differing lattice constants and fill factors. Transmission measurements through these structures allowed mapping out of the band gap and band edge of the photonic crystal structures. Comparisons between experimental measurements and theoretical simulations allowed us to determine the sensitivity of optical output to fabrication errors and variations.