Optical semiconductor device
US11722224B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 27, 2019 |
| Grant date | Aug 8, 2023 |
| Priority date | — |
| Expiry date | May 27, 2039 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01S5/4087
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
An optical device includes: lasers output first light from a front-end side and output second light from a rear-end side; an optical multiplexer circuit multiplex respective rays of the first light, to thereby send out output light; waveguides guide respective rays of the second light toward one end face of the optical device; and light detectors receive respective rays of reflected light that are due to reflection of the respective rays of the second light after being guided by the waveguides, on the one end face or on respective inclined end faces in concave portions formed on that one end face. The light detector is located between the rear-end side of the laser and the one end face or the inclined end face, and the second light is outputted diagonally relative to a perpendicular line with respect to the one end face or the inclined end face.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.