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Updated: Aug 22, 2026

Fabrication And Characterization Of Photonic Crystal Slow Light Waveguides And Cavities
Published on: November 30, 2012
Effects of random and systematic perturbations in a one-dimensional photonic crystal wavelength converter
F Bragheri1, D Faccio, M Romagnoli
1INFM and Department of Electronics, University of Pavia, Via Ferrata 1, 27100 Pavia, Italy. francesca.bragheri@unipv.it
Abstract:
We study the problem of the tolerance to fabrication errors in one-dimensional photonic crystal wavelength converters. In particular we consider the case of wavelength conversion obtained via quasiphase matching (QPM) based on a periodic amplitude modulation of the fundamental wave (Bloch-mode-QPM). Both numerical simulations of a waveguide-based structure and experimental results in an AlGaAs thin-film multilayer show that the proposed QPM mechanism is extremely tolerant to both systematic and random errors in the periodicity and duty cycle of the grating.
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