FABRICATION-TOLERANT WAVEGUIDES AND RESONATORS
First Claim
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1. A method of propagating optical signals through a waveguide with low loss and low device sensitivity to fabrication imperfections, the method including the steps of:
- providing an optical waveguide comprising a core region including a core material and having a substantially rectangular cross-section with an aspect ratio of width to height of about 1.8;
1, the cross-section supporting at least two TE modes and only one TM mode, and the optical waveguide having at least one TE mode with a higher effective index than the TM mode; and
propagating light in the optical waveguide solely in the TM mode.
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Abstract
An optical waveguide having a core region with a substantially rectangular cross-section with a selected aspect ratio of width to height. Embodiments include devices incorporating the optical waveguide and methods for using the optical waveguide.
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Citations
13 Claims
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1. A method of propagating optical signals through a waveguide with low loss and low device sensitivity to fabrication imperfections, the method including the steps of:
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providing an optical waveguide comprising a core region including a core material and having a substantially rectangular cross-section with an aspect ratio of width to height of about 1.8;
1, the cross-section supporting at least two TE modes and only one TM mode, and the optical waveguide having at least one TE mode with a higher effective index than the TM mode; andpropagating light in the optical waveguide solely in the TM mode. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. A method of propagating optical signals through a waveguide with low loss and low device sensitivity to fabrication imperfections, the method including the steps of:
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providing an optical waveguide having a cross-section with an aspect ratio of width to height of about 1.8;
1, the cross-section supporting at least two TE modes and only one TM mode, and the optical waveguide having at least one TE mode with a higher effective index than the TM mode; andpropagating light in the optical waveguide solely in the TM mode.
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Specification