Optical structure
First Claim
1. Optical structure comprising:
- an optical resonator, the optical resonator comprising a first set of nested closed optical regions forming a distributed feedback resonator structure with a direction of radially alternating optical refractive index, and a second set of nested optical regions forming a distributed feedback resonator structure with a direction of radially alternating optical refractive index, each optical region of said second set is interrupted by a first gap region with a lower refractive index, said first gap region substantially overlap in the direction of radially alternating optical refractive index, said first set being nested within the second set;
a first optical waveguide optically coupled to the optical resonator via a first waveguide portion reaching into the first gap region and being arranged coplanar to said optical resonator.
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Abstract
An optical structure comprising an optical resonator is provided. The optical resonator comprises a first set of nested closed optical regions, forming a distributed feedback resonator structure with a direction of radially alternating optical refractive index, and a second set of nested optical regions, forming a distributed feedback resonator structure with a direction of radially alternating optical refractive index. Each optical region of the second set is interrupted by a first gap region with a lower refractive index, wherein the first gap regions substantially overlap in the direction of radially alternating optical refractive index. The first set is arranged nested within the second set and the optical structure further comprises a first optical waveguide optically coupled to the optical resonator via a first waveguide portion reaching into the first gap regions and being arranged coplanar to the optical resonator.
12 Citations
13 Claims
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1. Optical structure comprising:
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an optical resonator, the optical resonator comprising a first set of nested closed optical regions forming a distributed feedback resonator structure with a direction of radially alternating optical refractive index, and a second set of nested optical regions forming a distributed feedback resonator structure with a direction of radially alternating optical refractive index, each optical region of said second set is interrupted by a first gap region with a lower refractive index, said first gap region substantially overlap in the direction of radially alternating optical refractive index, said first set being nested within the second set; a first optical waveguide optically coupled to the optical resonator via a first waveguide portion reaching into the first gap region and being arranged coplanar to said optical resonator. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. An optical structure comprising:
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an optical resonator that comprises a first set of nested closed optical regions, forming a distributed feedback resonator structure with a direction of radially alternating optical refractive index, a first optical waveguide comprising several waveguide arms, each of which being optically coupled to the optical resonator at a different position of the first set, wherein said waveguide arms converge into said optical waveguide. - View Dependent Claims (9, 10, 11, 12, 13)
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Specification