Optical package with cascaded filtering
US6961496B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 26, 2002 |
| Grant date | Nov 1, 2005 |
| Priority date | — |
| Expiry date | Oct 24, 2022 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B6/3858
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
An optical package comprises an optical element (e.g., a filter), a reflective surface, an input optical fiber and an output optical fiber. A light signal travels through the input fiber and through the element where it is shaped or modified a first time. The shaped light signal is reflected by the reflective surface and is again transmitted through the element where it is shaped or modified a second time. The twice-shaped light signal then travels out through the output fiber. The package thereby utilizes the element two times. The package is useful in wavelength division multiplex (WDM) telecommunication systems and other light processing systems.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.