Waveguide grating-based wavelength selective switch actuated by micro-electromechanical system
US6842563B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 19, 2002 |
| Grant date | Jan 11, 2005 |
| Priority date | — |
| Expiry date | Mar 11, 2023 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04Q2011/0049
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
The present invention is a wavelength-selective optical switching system. The switching system includes an input waveguide designated as waveguide WG(0) for receiving a multiplexed optical signal comprising optical signals transmitted over a plurality of wavelength channels represented by λ1, λ2, λ3, , λN, where N is a positive integer wherein the input waveguide extending over a first direction. The switching system further includes a two dimensional waveguide array comprising a plurality of first direction waveguides WG(i), i=1, 2, 3, , M extending over the first direction substantially parallel to the input waveguide WG(0) where M is a positive integer and a plurality of second direction waveguides WG′(j), j=1, 2, 3, N, extending over a second direction substantially perpendicular to the first direction and intersecting with the input waveguide and each of the first direction waveguide WG(i), i=0, 1, 2, 3, ,M, thus forming (M+1)×N intersections. The switching system further includes a plurality of wavelength selective grating-based switches SW(i, j) where i=0, 1, 2, 3, , M and j=1, 2, 3, , N, each disposed on one of the (M+1)×N intersections for selectively transmitting an optic…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.