Variable chirp modulator having three arm interferometer
US6393166B1 · kind B1 · utility
Assignee
Inventor
Key dates
| Filing date | Mar 27, 2000 |
| Grant date | May 21, 2002 |
| Priority date | — |
| Expiry date | Mar 27, 2020 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02F2203/25
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
An electrically tunable optical modulator includes a substrate having an electrooptical effect, an optical waveguide having first, second, and third cascading portions in the substrate, and transmitting an optical field, a first coplanar waveguide electrode having a first part over the first cascading portion and second and third parts extending beyond the first cascading portion, a second coplanar waveguide electrode having a fourth part over the second cascading portion and fifth and sixth parts extending beyond the second cascading portion, a third coplanar waveguide electrode having a seventh part over the third cascading portion and eighth and ninth parts extending beyond the third cascading portion, a fourth coplanar waveguide electrode, a fifth coplanar waveguide electrode formed between the first and second coplanar waveguide electrodes, respectively, a sixth coplanar waveguide electrode formed between the second and third coplanar waveguide electrodes, and a seventh coplanar waveguide electrode.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.