{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-9697854","patent":{"patent_number":"US-9697854","title":"Heat assisted magnetic recording write apparatus having an inverse tapered waveguide","assignee":null,"inventors":[],"filing_date":"2016-07-21T00:00:00.000Z","publication_date":"2017-07-04T00:00:00.000Z","cpc_codes":["G11B","G11B","G11B","G11B"],"num_claims":19,"abstract":"A heat assisted magnetic recording (HAMR) write apparatus has a media-facing surface (MFS) and includes a pole, coil(s) and a waveguide. The waveguide is optically coupled with a laser and directs energy toward the MFS. The waveguide includes an entrance, a bottom and a mode converter having a core, an inner cladding, high index layer(s) and an outer cladding. The core has sides that diverge in width. The core has a first index of refraction. The outer cladding has a second index of refraction less than the first index of refraction. The inner cladding has a third index of refraction not greater than the second index of refraction. The inner cladding is between the high index layer(s) and the core. The high index layer(s) are between the inner and outer cladding. The high index layer(s) have a high index of refraction greater than the second index of refraction."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Heat assisted magnetic recording write apparatus having an inverse tapered waveguide","description":"A heat assisted magnetic recording (HAMR) write apparatus has a media-facing surface (MFS) and includes a pole, coil(s) and a waveguide. The waveguide is optically coupled with a laser and directs ene","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-9697854","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-9697854","citation_suggestion":"Patentable. \"Heat assisted magnetic recording write apparatus having an inverse tapered waveguide\" (US-9697854). https://patentable.app/patents/US-9697854","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-9697854","json":"https://patentable.app/api/llm-context/US-9697854","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-06-06T09:03:23.805Z"}