Waveguide type optical switch
US9360629B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 14, 2012 |
| Grant date | Jun 7, 2016 |
| Priority date | — |
| Expiry date | Jan 15, 2033 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04Q2011/0052
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A waveguide type optical switch that can reduce the number of intersections in a matrix optical switch having the configuration of connecting unit optical switches and optical combining devices or optical branching devices to have a connecting function from “multiple inputs to one output” to “one input to multiple outputs”. To reduce the number of intersections in an entire matrix optical switch, an optical combining device of M inputs and one output is divided into (M−1) pieces of unit optical combining elements each having two inputs and one output, which are arranged immediately after (N−1) pieces of respective output ports excluding one piece of the output port closer to the input in the matrix optical switch out of N pieces of the output ports in the optical switch of one input and N outputs.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.