Analog optical transmission system
US5453867A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Aug 18, 1993 |
| Grant date | Sep 26, 1995 |
| Priority date | — |
| Expiry date | Aug 18, 2013 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04B10/504
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
An analog transmission system for transmitting a multi-channel analog signal including plural carrier signals having different frequencies, comprises: a laser unit responsive to the multi-channel analog signal for emitting laser light signal intensity-modulated by the multi-channel analog signal, the laser unit having an oscillation wavelength W1; an optical fiber amplifier for amplifying the laser light signal with a peak gain at a wavelength W2; an optical fiber for transmitting the amplified laser light; and an optical receiver for receiving the transmitted laser light and for converting the received laser light into an electric signal as an output. In this system, a total distortion characteristic of the laser unit is compensated by distortions developed in the optical fiber amplifier.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.