Optical apparatus and a method using the apparatus, which utilizes the occurrence of a change in a both-end voltage of an amplifying region
US5608572A · kind A · utility
13Cited by
4References
15Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 6, 1995 |
| Grant date | Mar 4, 1997 |
| Priority date | — |
| Expiry date | Oct 6, 2015 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01S5/5045
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
In an optical apparatus, such as a semiconducter optical amplifier device and an optical filtering apparatus, there are provided an optical amplifier device, a detector and a controller. The optical amplifier device has such a structure that exhibits a both-end voltage change at an optical amplification time of an input light. The detector detects the both-end voltage change, and the controller performs a predetermined control of a portion other than the optical amplifier device, such as another optical amplifier portion and a tunable band pass filter portion.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.