Method of driving semiconductor laser with wide modulation band, optical communication method, semiconductor laser device, node, and optical communication system
US5850408A · kind A · utility
20Cited by
12References
83Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 24, 1997 |
| Grant date | Dec 15, 1998 |
| Priority date | — |
| Expiry date | Sep 24, 2017 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01S5/3434
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
This invention discloses the following. Two modulation currents are injected into different electrodes of a semiconductor laser having a plurality of electrodes. The relationship between the phases of the two modulation currents is so adjusted that an output waveform is not distorted especially when a modulation frequency is low. Polarization modulation is applied as the modulation form.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.