Polarization selective semiconductor laser, optical transmitter using the same, optical communication system using the same and fabrication method of the same
US6075799A · kind A · utility
11Cited by
6References
96Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 26, 1997 |
| Grant date | Jun 13, 2000 |
| Priority date | — |
| Expiry date | Aug 26, 2017 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01S5/5036
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A semiconductor laser capable of controlling a polarization mode of output light is disclosed. In a fabrication method of the laser, after two laser portions are independently formed, the laser portions are positioned to be optically coupled to each other. In another fabrication method of the laser, after at least portions of two laser portions are separately formed, an irregularly-formed portion at a boundary portion therebetween is removed. The fabrication method can be facilitated and a degree of freedom in the polarization control can be increased, since the two laser portions are separately formed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.