Large scale optical switch using asymmetric 1×2 elements
US9778421B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Oct 14, 2015 |
| Grant date | Oct 3, 2017 |
| Priority date | — |
| Expiry date | Dec 3, 2035 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B2006/12145
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
An optical switching arrangement includes a plurality of input and output waveguides. Each of the input waveguides has a first plurality of 1×2 optical switches associated therewith and extending therealong. Each of the output waveguides has a second plurality of 1×2 optical switches associated therewith and extending therealong. Each of the first and second plurality of optical switches is selectively switchable between a through-state and a cross-state. The input and output waveguides are arranged such that optical losses arising for any wavelength of light only depend on a length of segments of the input and output waveguides located between adjacent ones of the 1×2 optical switches. Each of the first plurality of optical switches associated with each of the input waveguides is optically coupled to one of the second plurality of optical switches in a different one of the output waveguides when both optical switches are in the cross-state.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.