{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-9810931","patent":{"patent_number":"US-9810931","title":"Ring cavity device and its fabrication method thereof","assignee":null,"inventors":[],"filing_date":"2014-06-11T00:00:00.000Z","publication_date":"2017-11-07T00:00:00.000Z","cpc_codes":["G02F","G02F","G01C"],"num_claims":10,"abstract":"A ring cavity device includes a passive ring waveguide and an input/output waveguide horizontally coupled to the passive ring waveguide, including an active waveguide structure vertically coupled to the passive ring waveguide and/or the input/output waveguide. The active waveguide structure compensates for the loss of the passive ring waveguide. A method for fabricating a ring cavity device is also included. The ring cavity device may obtain part of the gain by vertical coupling or mixed coupling (vertical coupling followed by horizontal coupling) thus to compensate the loss in the ring cavity device. Hence, the quality factor of the ring cavity device is improved."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Ring cavity device and its fabrication method thereof","description":"A ring cavity device includes a passive ring waveguide and an input/output waveguide horizontally coupled to the passive ring waveguide, including an active waveguide structure vertically coupled to t","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-9810931","license":"CC-BY-4.0-like","license_terms":"AI-generated analysis on this page (summary, layman_explanation, technical_analysis, business_analysis, faqs) may be reused with attribution and a visible link back to the canonical URL above. Patent abstracts, claims, and bibliographic data are USPTO public domain.","required_link":"https://patentable.app/patents/US-9810931","citation_suggestion":"Patentable. \"Ring cavity device and its fabrication method thereof\" (US-9810931). https://patentable.app/patents/US-9810931","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-9810931","json":"https://patentable.app/api/llm-context/US-9810931","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-06-06T04:33:01.746Z"}