Optical transmitter
US9020363B2 · kind B2 · utility
51Cited by
1References
8Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Oct 26, 2012 |
| Grant date | Apr 28, 2015 |
| Priority date | — |
| Expiry date | Apr 10, 2033 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04B10/548
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
After a startup of an optical transmitter, a control is started in such a way that a modulation amplitude of a driving signal of a phase modulator is set as 0, and that an operational point of a bias voltage is set as the lowest point of light transmission characteristics of the phase modulator. When the operational point of the bias voltage reaches the lowest point, the modulation amplitude of the driving signal is gradually increased from 0 to 2Vπ.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.