Bias adjustment method for optical SSB modulator or optical FSK modulator
US7245787B2 · kind B2 · utility
11Cited by
3References
5Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 14, 2005 |
| Grant date | Jul 17, 2007 |
| Priority date | — |
| Expiry date | Mar 14, 2025 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02F1/225
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A method of appropriately adjusting a bias signal of an optical modulator is provided. For an optical modulator provided with a first sub Mach-Zehnder waveguide, a second sub Mach-Zehnder waveguide and a main Mach-Zehnder waveguide, a predetermined signal is supplied to the main Mach-Zehnder waveguide, and bias signals supplied to the first and second Mach-Zehnder waveguides are adjusted so as to lower an amplitude of an output light of the main Mach-Zehnder waveguide.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.