Optical waveguide and thermal assist magnetic recording head therewith
US8098547B2 · kind B2 · utility
23Cited by
3References
11Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 9, 2010 |
| Grant date | Jan 17, 2012 |
| Priority date | — |
| Expiry date | Jul 22, 2030 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B2005/0021
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An optical waveguide, on account of its ability to apply phase resonance of a wavelength and of a first and second triangular plate-like spot size converter members formed of the same material as a core material and being arranged and formed in a substantially symmetrical structure, can promote shortening of the waveguide length and contrive to reduce the size of the optical waveguide itself. Further, an optical waveguide having excellent spot size conversion efficiency can be obtained even in a reduced size.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.