Concentric photoelectric light-receiving element
US5164581A · kind A · utility
8Cited by
3References
1Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Sep 27, 1990 |
| Grant date | Nov 17, 1992 |
| Priority date | — |
| Expiry date | Sep 27, 2010 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH10F39/103
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
An invention provides a light receiving element which can monitor a light signal input without causing a disturbance in an output signal. A light receiving element has a first active area irradiated by a major component of an input light signal and a second active area irradiated by a leakage light component of the input light signal. An output optical current for information transmission is generated by the light signal radiated on the first active area, and a monitor light output current is generated by the leakage light component of the light signal radiated on the second active area.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.