LiNbO3 Mach-Zehnder modulator with low drive voltage requirement and adjustable chirp
US6552838B2 · kind B2 · utility
9Cited by
5References
37Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 18, 2001 |
| Grant date | Apr 22, 2003 |
| Priority date | — |
| Expiry date | Jul 18, 2021 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02F1/2255
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
An electro-optic modulator and associated method are provided. The electro-optic modulator includes an optical waveguide comprised of two pairs of coplanar modulation strips, the strips being driven by a controller circuit which applies voltages of equal amplitude and opposite polarity to the strips of each pair. The voltage applied to the first pair of strips may differ from the voltage applied to the second pair of strips, so that a chirp factor may be adjusted if desired. The modulator and associated method exhibit reduced drive voltage requirements.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.