M X N WSS with reduced optics size
US8300995B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jun 30, 2010 |
| Grant date | Oct 30, 2012 |
| Priority date | — |
| Expiry date | May 3, 2031 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B6/3556
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A M×N wavelength selective switch (WSS) module capable of independently routing any wavelength channel from any input port to any output port is provided. The M×N WSS includes a first beam relayer including first and second elements having optical power, each of which is disposed such that light transmitted to or from a first plurality of ports passes through a common point. The M×N WSS also includes a wavelength dispersive element, a first switching array having M rows including K switching elements, a second beam relayer, and a second switching array including N switching elements. The second switching array includes an optical by-pass disposed at the common point, which provides means for separating the input and output beams of light, and which allows both the input and output optical beams to traverse similar paths throughout the optical train.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.