{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-9804426","patent":{"patent_number":"US-9804426","title":"Silicon-germanium electro-absorption modulator","assignee":null,"inventors":[],"filing_date":"2017-01-27T00:00:00.000Z","publication_date":"2017-10-31T00:00:00.000Z","cpc_codes":["G02F","G02F","G02F"],"num_claims":13,"abstract":"An electro-absorption modulator, comprising: a substrate layer, including a silicon substrate and an oxide layer disposed on the silicon substrate; top-layer silicon, formed on the oxide layer, where a waveguide layer is formed on the top-layer silicon; a doping layer, including a first doping panel and a second doping panel, where a first-type light doping area is formed on the first doping panel, a second-type light doping area is formed on the second doping panel; and a modulation layer, disposed on the waveguide layer and connected in parallel to the PIN junction. For an incident beam with a specific wavelength, when a modulating electrical signal is reversely applied to the PIN junction, a light absorption coefficient of the modulation layer for the beam changes with the modulating electrical signal, and after the beam passes through a modulation area, optical power of the beam changes."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Silicon-germanium electro-absorption modulator","description":"An electro-absorption modulator, comprising: a substrate layer, including a silicon substrate and an oxide layer disposed on the silicon substrate; top-layer silicon, formed on the oxide layer, where ","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-9804426","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-9804426","citation_suggestion":"Patentable. \"Silicon-germanium electro-absorption modulator\" (US-9804426). https://patentable.app/patents/US-9804426","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-9804426","json":"https://patentable.app/api/llm-context/US-9804426","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-06-06T16:22:51.499Z"}