Optical modulator
US9618821B2 · kind B2 · utility
8Cited by
1References
26Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 5, 2015 |
| Grant date | Apr 11, 2017 |
| Priority date | — |
| Expiry date | Jun 5, 2035 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02F2201/58
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
An optical modulator is disclosed, in which a MMI couplers are used for input signal splitting for branching into individual Mach-Zehnder interferometers, as well as for branching and combining from individual Mach-Zehnder waveguides. MMI couplers, splitters, and combiners may be cascaded and combined with single-mode Y-splitters and combiners to provide modulators of various types, including dual polarization, quadrature phase Mach-Zehnder interferometer base optical modulators.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.