Laser device and method of manufacture thereof
US8472495B2 · kind B2 · utility
0Cited by
1References
10Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Feb 22, 2012 |
| Grant date | Jun 25, 2013 |
| Priority date | — |
| Expiry date | Feb 26, 2032 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01S5/162
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A laser device includes a substrate, a lower cladding layer on the substrate, an active layer on the lower cladding layer and having a disordered portion spaced from an end face of a resonator of the laser device, an upper cladding layer located on the active layer, and a diffraction grating located in a portion of a layer lying above or below the active layer, with respect to the substrate. The disordered portion intersects a boundary between a diffraction grating section, in which the diffraction grating is located, and a bulk section, in which no diffraction grating is located.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.