Semi conductor optical amplifier
US6310719A · kind A · utility
37Cited by
5References
6Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 1, 1999 |
| Grant date | Oct 30, 2001 |
| Priority date | — |
| Expiry date | Oct 1, 2019 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01S5/3201
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
The invention relates to a semi-conductor optical amplifier insensitive to the polarization of light. The active layer (20) of this amplifier is made up of an alternating series of solid sub-layers alternately under tensile stress (21) and compressive stress (22) and having the same forbidden band-width. The sub-layers under tensile stress (21) favour the propagation of the TM mode of polarization of light and the sub-layers under compression (22) favour the propagation of the TE mode of polarization of light. In addition, the thicknesses of the sub-layers have values which ensure equal gains G(TE) and G(TM) for the active layer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.