Optical circuit
US9678288B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jul 9, 2014 |
| Grant date | Jun 13, 2017 |
| Priority date | — |
| Expiry date | Jul 9, 2034 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B2006/12121
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A low-cost optical circuit, in which influence of reflected light is reduced, is provided. According to an embodiment of the present invention, an optical circuit (200) comprises a first optical coupler (204A) having at least two outputs, and a second optical coupler (204B) coupled to at least one of the outputs of the first optical coupler (204A), and wherein the ratio of an intensity of light reflected from the first optical coupler (204A) to an intensity of light inputted to the first optical coupler is smaller than the ratio of an intensity of light reflected from the second optical coupler (204B) to an intensity of light inputted to the second optical coupler.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.