{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-9686017","patent":{"patent_number":"US-9686017","title":"Bias control circuit for optical modulator, and optical transmitter comprising the same","assignee":null,"inventors":[],"filing_date":"2015-11-25T00:00:00.000Z","publication_date":"2017-06-20T00:00:00.000Z","cpc_codes":["H04B","H04B","H04B"],"num_claims":5,"abstract":"A bias control circuit for an optical modulator including a pair of optical waveguides and a power monitor is disclosed. The bias control circuit includes a bias generator, a differential amplifier, and a controller. The bias generator provides a bias signal to one of the optical waveguides. The bias signal includes a dither signal having a predetermined frequency. The differential amplifier receives a monitor signal from the power monitor and a reference signal, and generates an amplified signal corresponding to a difference between the monitor signal and the reference signal. The controller detects frequency components contained in the amplified signal. The frequency components originates from the dither signal. The controller generates a control signal according to intensity of the frequency components. The bias signal is adjusted according to the control signal provided from the controller."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Bias control circuit for optical modulator, and optical transmitter comprising the same","description":"A bias control circuit for an optical modulator including a pair of optical waveguides and a power monitor is disclosed. The bias control circuit includes a bias generator, a differential amplifier, a","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-9686017","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-9686017","citation_suggestion":"Patentable. \"Bias control circuit for optical modulator, and optical transmitter comprising the same\" (US-9686017). https://patentable.app/patents/US-9686017","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-9686017","json":"https://patentable.app/api/llm-context/US-9686017","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-06-06T06:36:22.913Z"}