Reflective semiconductor optical amplifier for optical networks
US8948605B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 16, 2011 |
| Grant date | Feb 3, 2015 |
| Priority date | — |
| Expiry date | Oct 19, 2031 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01S5/1017
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
The present document relates to passive optical networks (PON). More particularly but not exclusively, it relates to the use of a reflective semiconductor optical amplifier (RSOA) for amplifying signals in a Gigabit PON (GPON) or WDM-PON. An apparatus configured to amplify light at different wavelengths in an optical network is described. The apparatus comprises a first active material configured to amplify light at a first wavelength and a second active material configured to amplify light at a second wavelength. Furthermore, the apparatus comprises a first reflector which separates the first and second active materials and which is configured to reflect light at the first wavelength and which is configured to be substantially transparent to light at the second wavelength. In addition, the apparatus comprises a second reflector adjacent the second active material opposite to the first reflector which is configured to reflect light at the second wavelength.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.