Broadband optical fibre amplifier and wave division multiplex optical transmission system
A fiber amplifier and amplifier technology, applied in wavelength division multiplexing systems, optical transmission systems, electromagnetic wave transmission systems, etc., can solve the problems of increasing the cost of manufacturing systems
Inactive Publication Date: 2003-10-01
SAMSUNG ELECTRONICS CO LTD
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Problems solved by technology
Because the number of optical devices such as amplifiers or dispersion compensating fibers is doubled, thus increasing the cost of manufacturing the system, this is the drawback of conventional optical transmission systems
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[0018] Preferred embodiments of the present invention will now be described with reference to the accompanying drawings. In the following description, when known functions, devices, devices, and configurations introduced herein make the technical subject matter of the present invention unclear, a detailed description thereof is omitted.
[0019] figure 2 A structural diagram of a WDM (Wavelength Division Multiplexing) optical transmission system 20 according to an embodiment of the present invention is shown. Such as figure 2 As shown, the WDM optical transmission system 20 includes a transmission stage 210 , an optical transponder 220 and a reception stage 230 . The transmission stage 210 has a first C / L (regular / long) band EDFA (Erbium Doped Fiber Amplifier) 218 for amplifying the combined C-band and L-band optical signals. The optical repeater 220 has second C / L frequency band EDFAs 222 and 226 for amplifying optical signals connected in series at the downstream en...
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Abstract
An erbium-doped fiber amplifier and a wavelength division multiplexing optical transmission system equipped with the amplifier. A wavelength division multiplexed optical transmission system comprising: a transmission stage having a first C / L fiber amplifier for amplifying combined C-band and L-band optical signals, and having at least one optical fiber amplifier for amplifying light transmitted from a predetermined length of single-mode optical fiber An optical transponder of the second C / L optical fiber amplifier for the signal, and a dispersion compensation optical fiber with a predetermined length for compensating the dispersion of the amplified optical signal. The system also includes a receiving stage having a third C / L fiber amplifier for amplifying an optical signal transmitted from a predetermined length of single-mode fiber, and for converting the amplified light from the third C / L fiber amplifier one frequency band to one frequency band. A receiver that separates signals into C-band optical signals and L-band optical signals and demultiplexes the separated amplified optical signals.
Description
technical field [0001] The invention relates to an erbium-doped optical fiber amplifier and a wavelength division multiplexing optical transmission system equipped with the amplifier, in particular to an economical and effective broadband erbium-doped optical fiber amplifier and a wavelength division multiplexing optical transmission system equipped with the amplifier. Background technique [0002] Conventional WDM (Wavelength Division Multiplexing) optical transmission systems use one optical fiber to transmit optical signals of multiple wavelengths. This allows efficient transmission and delivery of optical signals regardless of transmission speed. For high-speed Internet networks that need to transmit large amounts of data, WDM optical transmission systems are very useful. In order to meet the high-speed data transmission rate, the WDM optical transmission system must have an extended transmission bandwidth range. In view of this, some active research results have been ...
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IPC IPC(8): H01S3/10G02B6/00H01S3/06H01S3/067H01S3/094H01S3/0941
CPCH01S3/067H04B10/291H04B2210/256H04B2210/258G02B6/00
Inventor 黄星泽周永勋
Owner SAMSUNG ELECTRONICS CO LTD