Fabrication of multi-layer dispersion-engineered waveguides
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United States of America Patent
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Feb 14, 2006
Grant Date -
Jun 23, 2005
app pub date -
Nov 16, 2004
filing date -
Dec 21, 2000
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Expired
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Abstract
A method for fabricating a multi-layer laterally-confined dispersion-engineered optical waveguide which may include one multi-layer reflector stack for guiding an optical mode along a surface thereof, or may include two multi-layer reflector stacks with a core therebetween for guiding an optical mode along the core. Dispersive properties of such multi-layer waveguides enable modal-index-matching between low-index optical fibers and/or waveguides and high-index integrated optical components and efficient transfer of optical signal power therebetween. Integrated optical devices incorporating such multi-layer waveguides may therefore exhibit low (<3 dB) insertion losses. Incorporation of an active layer (electro-optic, electro-absorptive, non-linear-optical) into such waveguides enables active control of optical loss and/or modal index with relatively low-voltage/low-intensity control signals. Integrated optical devices incorporating such waveguides may therefore exhibit relatively low drive signal requirements.
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