{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-9847444","patent":{"patent_number":"US-9847444","title":"Photonic device and optical coherence tomography apparatus including the photonic device as light source","assignee":null,"inventors":[],"filing_date":"2013-10-30T00:00:00.000Z","publication_date":"2017-12-19T00:00:00.000Z","cpc_codes":["G01N"],"num_claims":12,"abstract":"Provided is a photonic device in which emission intensity in a short wavelength region is suppressed even in the case of increasing carrier injection density so as to obtain a wide spectrum half-maximum width as well as a high output. The photonic device includes: a first cladding layer; a second cladding layer; and an active layer including an emitting layer and a barrier layer and being provided between the first cladding layer and the second cladding layer, the emitting layer emitting light in a spectrum having a center wavelength λc and a spectrum half-maximum width Δλ, in which at least one of the first cladding layer and the second cladding layer includes a light absorbing part for absorbing light having a wavelength of λs or less represented by the following Expression (1):λs<(λc−(Δλ/2))  (1)."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Photonic device and optical coherence tomography apparatus including the photonic device as light source","description":"Provided is a photonic device in which emission intensity in a short wavelength region is suppressed even in the case of increasing carrier injection density so as to obtain a wide spectrum half-maxim","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-9847444","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-9847444","citation_suggestion":"Patentable. \"Photonic device and optical coherence tomography apparatus including the photonic device as light source\" (US-9847444). https://patentable.app/patents/US-9847444","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-9847444","json":"https://patentable.app/api/llm-context/US-9847444","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-06-06T06:43:25.773Z"}