{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-9664855","patent":{"patent_number":"US-9664855","title":"Wide shoulder, high order mode filter for thick-silicon waveguides","assignee":null,"inventors":[],"filing_date":"2016-09-12T00:00:00.000Z","publication_date":"2017-05-30T00:00:00.000Z","cpc_codes":["G02F","G02F","G02F"],"num_claims":17,"abstract":"An optical filter for attenuating higher-order modes in an optical waveguide includes a shoulder slab formed of a first material having a first index of refraction and disposed on a second material having a second index of refraction, the first index of refraction being higher than the second index of refraction. The shoulder slab defines a near end having a first width, an intermediate section, adjacent to the first end section, and a far end section, adjacent to the intermediate section and opposite the first end section along a direction of beam propagation. The optical filter also includes a waveguide ridge, formed of the first material and disposed atop the shoulder slab, that traverses the shoulder slab, and is configured to guide light of a fundamental mode along the direction of beam propagation from the near end section to the far end section."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Wide shoulder, high order mode filter for thick-silicon waveguides","description":"An optical filter for attenuating higher-order modes in an optical waveguide includes a shoulder slab formed of a first material having a first index of refraction and disposed on a second material ha","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-9664855","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-9664855","citation_suggestion":"Patentable. \"Wide shoulder, high order mode filter for thick-silicon waveguides\" (US-9664855). https://patentable.app/patents/US-9664855","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-9664855","json":"https://patentable.app/api/llm-context/US-9664855","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-06-06T06:36:19.660Z"}