{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-11949453","patent":{"patent_number":"US-11949453","title":"Test device and test method for DFB-LD for RoF system","assignee":null,"inventors":[],"filing_date":"2022-06-22T00:00:00.000Z","publication_date":"2024-04-02T00:00:00.000Z","cpc_codes":["H04B","H04B","H04B"],"num_claims":14,"abstract":"A test device and method for testing a distributed feedback laser diode (DFB-LD) device for an optical transceiver of a radio over fiber (RoF) system examines the DFB-LD device based on an absolute limiting rating, an operating case environment, and a functional specification, in which the absolute limiting rating is a rating at which there is no fatal damage to the DFB-LD device during a short period of time when each limiting parameter is isolated and all other parameters are in a normal performance parameter, the operating case environment includes an operating temperature, and the functional specification includes parameters to be tested according to an operating condition for the functional specification."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Test device and test method for DFB-LD for RoF system","description":"A test device and method for testing a distributed feedback laser diode (DFB-LD) device for an optical transceiver of a radio over fiber (RoF) system examines the DFB-LD device based on an absolute li","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-11949453","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-11949453","citation_suggestion":"Patentable. \"Test device and test method for DFB-LD for RoF system\" (US-11949453). https://patentable.app/patents/US-11949453","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-11949453","json":"https://patentable.app/api/llm-context/US-11949453","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-05-31T01:50:53.929Z"}