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US 12,306,036 B2Granted
Optical devices and methods of manufacture
AssigneeTaiwan Semiconductor Manufacturing Company, Ltd.
InventorsHua-Kung Chiu, Jia-Hong Wu, Hsing-Kuo Hsia, Chen-Hua Yu
Life of this patent
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Abstract
Optical devices and methods of manufacture are presented herein. In an embodiment, an apparatus is provided that includes a notch filter, an optical signal detector positioned adjacent to the notch filter, and a mirror positioned to adjacent to the notch filter.
Claims20
An apparatus comprising:
- a notch filter;
- an optical signal detector positioned adjacent to the notch filter;
- and
- a mirror positioned adjacent to the notch filter, wherein the notch filter comprises:
- a first distributed Bragg reflector (DBR) stack on a substrate;
- a defect structure on the first DBR stack;
- and
- a second DBR stack on the defect structure.
5 more elements
A method comprising:
- forming a notch filter, wherein the forming the notch filter comprises:
- forming a first distributed Bragg reflector (DBR) over a substrate;
- forming a defect layer over the first DBR;
- and
- forming a second DBR over the defect layer;
- positioning a reflective structure, wherein after the forming the notch filter the reflective structure is positioned adjacent to the notch filter;
- and
- positioning an optical signal detector, wherein after the forming the notch filter, the optical signal detector is positioned adjacent to the notch filter.
5 more elements
A method comprising:
- reflecting an optical signal towards a notch filter;
- selectively reflecting a first portion of the optical signal out of the notch filter;
- selectively passing a second portion of the optical signal out of the notch filter, wherein the first portion is different from the second portion;
- and
- capturing the first portion of the optical signal with an optical detector.
2 more elements
Dependencies are inferred from the claim text.