Optoelectronic integrated circuit
First Claim
1. A semiconductor device comprising:
- a resonator positioned adjacent a waveguide structure;
the resonator including a closed loop waveguide that is configured to support closed-loop propagation of electromagnetic radiation that is emitted or absorbed by the resonator; and
the waveguide structure being spaced from the closed loop waveguide of the resonator to provide for evanescent-wave coupling therebetween;
wherein the closed loop waveguide has a plurality of straight sections that are coupled together by bend sections;
wherein the waveguide structure includes a plurality of sections extending between an input and an output; and
wherein one section of the waveguide structure is spaced from and extends parallel to one straight section of the closed loop waveguide of the resonator to provide for evanescent-wave coupling therebetween.
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Accused Products
Abstract
A semiconductor device includes a substrate supporting a plurality of layers that include at least one modulation doped quantum well (QW) structure offset from a quantum dot in quantum well (QD-in-QW) structure. The modulation doped QW structure includes a charge sheet spaced from at least one QW by a spacer layer. The QD-in-QW structure has QDs embedded in one or more QWs. The QD-in-QW structure can include at least one template/emission substructure pair separated by a barrier layer, the template substructure having smaller size QDs than the emission substructure. A plurality of QD-in-QW structures can be provided to support the processing (emission, absorption, amplification) of electromagnetic radiation of different characteristic wavelengths (such as optical wavelengths in range from 1300 nm to 1550 nm). The device can realize an integrated circuit including a wide variety of devices that process electromagnetic radiation at a characteristic wavelength(s) supported by the QDs of the QD-in-QW structure(s). Other semiconductor devices are also described and claimed.
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Citations
25 Claims
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1. A semiconductor device comprising:
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a resonator positioned adjacent a waveguide structure; the resonator including a closed loop waveguide that is configured to support closed-loop propagation of electromagnetic radiation that is emitted or absorbed by the resonator; and the waveguide structure being spaced from the closed loop waveguide of the resonator to provide for evanescent-wave coupling therebetween; wherein the closed loop waveguide has a plurality of straight sections that are coupled together by bend sections; wherein the waveguide structure includes a plurality of sections extending between an input and an output; and wherein one section of the waveguide structure is spaced from and extends parallel to one straight section of the closed loop waveguide of the resonator to provide for evanescent-wave coupling therebetween. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25)
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Specification