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Title: Theoretical analysis of optimal QPM-SHG waveguide structure in KTP substrates
Authors: Hu, P. 
Chong, T. 
Shi, L. 
Hou, W.
Keywords: Quasi-phase matching
Second harmonic generation
Issue Date: 1999
Citation: Hu, P.,Chong, T.,Shi, L.,Hou, W. (1999). Theoretical analysis of optimal QPM-SHG waveguide structure in KTP substrates. Ferroelectrics 229 (1-4) : 33-38. ScholarBank@NUS Repository.
Abstract: Based on the QPM structure, the "dead layer" effect on KTP substrates is qualitatively analyzed. Assuming the refractive index profile of an ion exchanged KTP channel waveguide is an exponential decay function in the depth direction, and a step-like function in the width direction, the analytical expression of the optical field distribution for the lowest order mode is obtained. According to the coupled-mode theory, the optimal QPM-SHG waveguide structure in KTP substrate with the "dead layer" effect are qualitatively discussed.
Source Title: Ferroelectrics
ISSN: 00150193
Appears in Collections:Staff Publications

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