Detection device including means for automatically slaving the sensitivity of a pin photodiode
US5889605A · kind A · utility
9Cited by
2References
4Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 27, 1996 |
| Grant date | Mar 30, 1999 |
| Priority date | — |
| Expiry date | Dec 27, 2016 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03F3/087
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
In a detector for detecting a frequency-modulated light wave including a PIN photodiode (2), biasing means (11, 12, 15) are introduced which are capable of automatically forward biasing or reverse biasing the PIN photodiode (2) depending on the received light power. The output voltage of a transimpedance preamplifier stage (6) receiving the signal from the PIN photodiode (2) is thus automatically limited to a value below the saturation threshold of this transimpedance preamplifier stage (6).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.