Early warning failure detection for a lasing semiconductor optical amplifier
US6906856B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 6, 2003 |
| Grant date | Jun 14, 2005 |
| Priority date | — |
| Expiry date | Nov 6, 2023 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01S5/5072
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
Optical systems and devices are provided that include or facilitate the ability to provide early detection of the failure of an optical transmitter such as a laser. Such detection may be made with reference to various aspects of the operation and performance of the optical transmitter. For example, some of the optical systems and devices employ wavelength shift information to make determinations concerning potential failure of an optical transmitter. Other optical systems and devices use information concerning the efficiency with which an incoming pump current is converted into the ballast laser signal changes to make determinations concerning potential failure of an optical transmitter.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.