Traveling-wave-type optical modulator and method of adjusting the same
US7558444B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 30, 2005 |
| Grant date | Jul 7, 2009 |
| Priority date | — |
| Expiry date | Apr 4, 2025 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02F1/0327
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
To provide a traveling-wave-type optical modulator and a method of adjusting the same, in which an occurrence of a jitter can be suppressed when an optical modulator is driven by using a driver, and, in particular, to provide a traveling-wave-type optical modulator and a method of adjusting the same, in which a degree of freedom is improved when combining the driver and the traveling-wave-type optical modulator and an occurrence of the jitter can be effectively suppressed even after combining the driver and the traveling-wave-type optical modulator.With reference to a traveling-wave-type optical modulator which includes a substrate having an electrooptic effect, an optical waveguide formed on the substrate, and a modulation electrode performing modulation control on a light wave propagating through the optical waveguide, a driver for controlling driving of the traveling-wave-type optical modulator is connected to the traveling-wave-type optical modulator, and a frequency characteristic (b) of an electro/optical conversion response of the traveling-wave-type optical modulator is adjusted so as to correct a frequency characteristic (a) of a gain of the driver. Preferably, in the adju…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.