{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-8498545","patent":{"patent_number":"US-8498545","title":"DPSK demodulator and demodulating method","assignee":null,"inventors":[],"filing_date":"2005-12-21T00:00:00.000Z","publication_date":"2013-07-30T00:00:00.000Z","cpc_codes":["H04B"],"num_claims":9,"abstract":"A demodulator for a DPSK-modulated optical signal of bit frequency 1/T, comprises an interferometric structure (3) having an input port (1) for receiving the DPSK-modulated optical signal, an output port (8), and first and second arms (4, 5) extending from said input port (1) to said output port (8), adjustment means (5, 7, 14, 16) for fine tuning a propagation delay difference of said two arms (4, 5) in a range comprising T, an optical/electrical converter (10) connected to the output port (8) of the interferometric structure (3), and a bandpass filter (12) connected to an output of the optical/electrical converter (10), the passband of which does not include 1/T. The adjustment means (5, 7, 14, 16) is adapted to tune the propagation delay according to the output power level of the bandpass filter (12)."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"DPSK demodulator and demodulating method","description":"A demodulator for a DPSK-modulated optical signal of bit frequency 1/T, comprises an interferometric structure (3) having an input port (1) for receiving the DPSK-modulated optical signal, an output p","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-8498545","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-8498545","citation_suggestion":"Patentable. \"DPSK demodulator and demodulating method\" (US-8498545). https://patentable.app/patents/US-8498545","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-8498545","json":"https://patentable.app/api/llm-context/US-8498545","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-05-31T06:57:56.717Z"}