dorsal/arxiv
View SchemaAnalysis of second harmonic generation in photonic-crystal-assisted waveguides
| Authors | Antonella D'Orazio, Domenico de Ceglia, Marco De Sario, Francesco Prudenzano, Mark J. Bloemer, Michael Scalora |
|---|---|
| Categories | |
| ArXiv ID | physics/0607281 |
| URL | https://arxiv.org/abs/physics/0607281 |
| DOI | 10.1063/1.2266104 |
Abstract
We study second harmonic generation in a planar dielectric waveguide having a low-index, polymer core layer, bounded by two multilayer stacks. This geometry allows exceptionally strong confinement of the light at the fundamental wavelength inside the core region with virtually zero net propagation losses for distances that exceed several centimeters, provided material and scattering losses are neglected. A phase-matched configuration of the waveguide is reported in which the pump signal is the lowest-order mode of the waveguide, and the generated second harmonic signal corresponds to the third propagation mode of the waveguide. Using a polymer waveguide core, having chi(2)=100 pm/V, we predict a conversion efficiency of approximately 90% after a propagation distance of 2 mm, using peak pump intensities inside the core of the waveguide of 1.35 GW/cm^2. If the waveguide core contains polymer layers with different glass transition temperatures, the layers can be poled independently to maximize the overlap integral, and similar pump depletions may be achieved over a distance of approximately 500 microns.
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"abstract": "We study second harmonic generation in a planar dielectric waveguide having a\nlow-index, polymer core layer, bounded by two multilayer stacks. This geometry\nallows exceptionally strong confinement of the light at the fundamental\nwavelength inside the core region with virtually zero net propagation losses\nfor distances that exceed several centimeters, provided material and scattering\nlosses are neglected. A phase-matched configuration of the waveguide is\nreported in which the pump signal is the lowest-order mode of the waveguide,\nand the generated second harmonic signal corresponds to the third propagation\nmode of the waveguide. Using a polymer waveguide core, having chi(2)=100 pm/V,\nwe predict a conversion efficiency of approximately 90% after a propagation\ndistance of 2 mm, using peak pump intensities inside the core of the waveguide\nof 1.35 GW/cm^2. If the waveguide core contains polymer layers with different\nglass transition temperatures, the layers can be poled independently to\nmaximize the overlap integral, and similar pump depletions may be achieved over\na distance of approximately 500 microns.",
"arxiv_id": "physics/0607281",
"authors": [
"Antonella D\u0027Orazio",
"Domenico de Ceglia",
"Marco De Sario",
"Francesco Prudenzano",
"Mark J. Bloemer",
"Michael Scalora"
],
"categories": [
"physics.optics"
],
"doi": "10.1063/1.2266104",
"title": "Analysis of second harmonic generation in photonic-crystal-assisted waveguides",
"url": "https://arxiv.org/abs/physics/0607281"
},
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"variant": "snapshot-2026-03-01",
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