Optical transmission system with optical filter for providing protection against giant pulses
US5317660A · kind A · utility
13Cited by
6References
3Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jun 21, 1993 |
| Grant date | May 31, 1994 |
| Priority date | — |
| Expiry date | Jun 21, 2013 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04B10/2912
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
In optical transmission systems with fiber-optic amplifiers, an interruption of the fiber-optic link, e.g., due to fiber breakage, may cause a giant pulse to develop. To prevent the giant pulse from propagating in the fiber-optic link, an optical filter (7) which blocks the wavelength region of the pulse is placed in the fiber-optic link. The wavelength of the optical signal must be chosen to lie outside the wavelength region of the maximum gain of the fiber-optic amplifier.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.