Non-linear optical coupler
US5963688A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Feb 23, 1998 |
| Grant date | Oct 5, 1999 |
| Priority date | — |
| Expiry date | Feb 23, 2018 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02F2201/302
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
An integrated optics non linear coupler presents on a surface a first and a second waveguide (2, 3) coupled contradirectionally by means of a distributed feedback grating (10). The first waveguide (2) defines an input port (4) and a first output port (5) of the device (transmission output) and the second waveguide (3) defines a second output port (6) of the device (reflection output). By means of an optical control signal injected into the device together with an information signal, the device can be brought to conditions of non-linear operation, thus making the grating (10) switch from transmitting to reflecting behaviour or vice versa with respect to a given wavelength.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.