{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-11467342","patent":{"patent_number":"US-11467342","title":"Mode converter and method for generating an optical orbital angular momentum mode of a topological charge of opposite sign","assignee":null,"inventors":[],"filing_date":"2021-05-21T00:00:00.000Z","publication_date":"2022-10-11T00:00:00.000Z","cpc_codes":["H04B","H04B","H04B"],"num_claims":23,"abstract":"The present invention provides a method for converting the topological charge of an orbital angular momentum mode of light to an opposite topological charge by applying the light to a spool of optical fiber having a bend radius R and length L. The length of the fiber used to form the spool is defined by ½ the bend-induced 2π walk-off length Ll,mb(2π). The length of the fiber L and the bend radius R of the spool may be adjusted to account for an ellipticity-induced 2π walk-off length Ll,m3(2π). Using the proportionality rules, Ll,mb(2π)∝R2l and Ll,m3(2π)∝ε−l adjustments to account for ellipticity induced 2π walk-off length Ll,me(2π), or to account for a change in the bend radius ΔR of the spool can be easily determined."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Mode converter and method for generating an optical orbital angular momentum mode of a topological charge of opposite sign","description":"The present invention provides a method for converting the topological charge of an orbital angular momentum mode of light to an opposite topological charge by applying the light to a spool of optical","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-11467342","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-11467342","citation_suggestion":"Patentable. \"Mode converter and method for generating an optical orbital angular momentum mode of a topological charge of opposite sign\" (US-11467342). https://patentable.app/patents/US-11467342","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-11467342","json":"https://patentable.app/api/llm-context/US-11467342","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-05-30T19:14:23.056Z"}