{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-11476939","patent":{"patent_number":"US-11476939","title":"Optical repeater, transmission path fiber monitoring method, and optical transmission system","assignee":null,"inventors":[],"filing_date":"2019-02-28T00:00:00.000Z","publication_date":"2022-10-18T00:00:00.000Z","cpc_codes":["H04B","H04B","H04B"],"num_claims":13,"abstract":"An optical repeater is a C+L-band repeater inserted between a first transmission path fiber and a second transmission path fiber. The optical repeater includes: a first optical fiber amplifier inserted in a first line, for amplifying a C-band signal; a second optical fiber amplifier inserted in a second line, for amplifying an L-band signal; a third optical fiber amplifier inserted in a third line, for amplifying a C-band signal; a fourth optical fiber amplifier inserted in a fourth line, for amplifying an L-band signal; and a first loopback means provided between an input to the first optical fiber amplifier or an output from the first optical fiber amplifier and an input to the third optical fiber amplifier or an output from the third optical fiber amplifier."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Optical repeater, transmission path fiber monitoring method, and optical transmission system","description":"An optical repeater is a C+L-band repeater inserted between a first transmission path fiber and a second transmission path fiber. The optical repeater includes: a first optical fiber amplifier inserte","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-11476939","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-11476939","citation_suggestion":"Patentable. \"Optical repeater, transmission path fiber monitoring method, and optical transmission system\" (US-11476939). https://patentable.app/patents/US-11476939","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-11476939","json":"https://patentable.app/api/llm-context/US-11476939","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-05-31T16:57:31.105Z"}