{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-9705592","patent":{"patent_number":"US-9705592","title":"In-service skew monitoring in a nested Mach-Zehnder modulator structure using pilot signals and balanced phase detection","assignee":null,"inventors":[],"filing_date":"2016-04-05T00:00:00.000Z","publication_date":"2017-07-11T00:00:00.000Z","cpc_codes":["G02F","G02F","H04B","G02F","H04B"],"num_claims":20,"abstract":"An apparatus is provided. The apparatus may include a drive circuit that selectively supplies a first plurality of electrical signals and a second plurality of electrical signals to a modulation circuit. Based on the first plurality of electrical signals, the modulation circuit may output a first in-phase component being modulated in accordance with a first tone having a first frequency and a first quadrature component being modulated in accordance with a second tone having a second frequency different than the first frequency. Based on the second plurality of electrical signals, the modulation circuit may output a second optical signal having a second in-phase component being modulated in accordance with the second tone and a second quadrature component being modulated in accordance with the first tone."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"In-service skew monitoring in a nested Mach-Zehnder modulator structure using pilot signals and balanced phase detection","description":"An apparatus is provided. The apparatus may include a drive circuit that selectively supplies a first plurality of electrical signals and a second plurality of electrical signals to a modulation circu","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-9705592","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-9705592","citation_suggestion":"Patentable. \"In-service skew monitoring in a nested Mach-Zehnder modulator structure using pilot signals and balanced phase detection\" (US-9705592). https://patentable.app/patents/US-9705592","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-9705592","json":"https://patentable.app/api/llm-context/US-9705592","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-06-06T06:36:01.476Z"}