Semiconductor optical amplifier with electronically controllable polarization dependent gain
US6891666B2 · kind B2 · utility
1Cited by
4References
11Claims
0Family size
Assignee
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Key dates
| Filing date | Mar 11, 2003 |
| Grant date | May 10, 2005 |
| Priority date | — |
| Expiry date | Mar 11, 2023 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01S5/3414
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
An optical amplifier has two amplifying sections formed in a semiconductor structure. The two amplifying sections have different ratios of gain for two polarization states (e.g., TE and TM). Thus the amplifier as a whole has a gain ratio determined by the gains of the two amplifying sections. The two amplifying sections are separately electronically controllable so as to control the gains of the two amplifying sections and thus the gain ratio of the amplifier as a whole. Such an amplifier can be made by quantum well intermixing.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.