Optical transmission device for controlling optical level of transmission signal in optical transmission system
US7551828B2 · kind B2 · utility
2Cited by
2References
10Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 31, 2006 |
| Grant date | Jun 23, 2009 |
| Priority date | — |
| Expiry date | Jan 31, 2026 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B6/266
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
An optical transmission device includes: an attenuator that attenuates an optical signal before being input into an optical element by a predetermined attenuation amount determined so that a level of an adjustment optical signal input into the optical element falls within a predetermined dynamic range of the optical element; and a controller that adjusts the predetermined attenuation amount so that a level of the optical signal input into the optical element falls within the predetermined dynamic range.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.