Abstract
The search for a compact coherent blue light source has created significant interest in efficient second-harmonic generation (SHG) in waveguides in the past few years. While high conversion efficiencies have only been demonstrated yet in waveguides made of inorganic crystals, there is a growing interest in SHG in organic waveguides. Polymers are easy to process and exhibit very high nonlinearities after poling. Quasi-phase-matching (QPM) is a phase-matching technique, that involves a periodic modulation of the nonlinear coefficient.1,2
© 1995 Optical Society of America
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