Packaged optical device stack
US7894722B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | May 1, 2007 |
| Grant date | Feb 22, 2011 |
| Priority date | — |
| Expiry date | Jun 23, 2029 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04Q2011/0016
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A packaged stack of optical devices includes two or more WDM optical devices, the stack having a reduced per-channel manufacturing cost and an improved mean time between failure relative to individual optical devices. WDM optical devices, which may be contained in a packaged stack, include wavelength selective switches, optical add-drop multiplexers, and dynamic gain equalizers. The optical switching devices in the stack may be configured so that one or more optical elements are shared by multiple switching devices. Optical components that may be shared between the switching devices contained in the stack include cylindrical lenses, diffraction gratings, mirrors, and beam steering units.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.