Semiconductor laser element and method of obtaining information from the semiconductor laser element
US9870525B2 · kind B2 · utility
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18Claims
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Key dates
| Filing date | Aug 30, 2016 |
| Grant date | Jan 16, 2018 |
| Priority date | — |
| Expiry date | Aug 30, 2036 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01S5/22
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A semiconductor laser element includes a substrate having a first main surface and a second main surface; a semiconductor layered body including an active layer, the semiconductor layered body being disposed on the first main surface; and a plurality of sub-patterns that, when combined, form an integrated pattern that allows reading of predetermined information, the plurality of sub-patterns being disposed on either one or both a first main surface side and a second main surface side of the substrate.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.