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Remotely pumped transportation system for promoting pumping performance by stimulated Raman effect

A technology of stimulated Raman and remote pumping, applied in the field of remote pumping transmission system, can solve the problem of limited improvement of pumping efficiency, and achieve the effect of improving transmission distance and pumping efficiency

Active Publication Date: 2008-05-28
ZTE CORP
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

This patented technology still has a limit to the improvement of pumping efficiency.

Method used

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  • Remotely pumped transportation system for promoting pumping performance by stimulated Raman effect
  • Remotely pumped transportation system for promoting pumping performance by stimulated Raman effect

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Embodiment Construction

[0022] In order to solve the disadvantages of the traditional technical solution, the present invention further elaborates a remote pump transmission system using the stimulated Raman effect to improve pumping performance according to the present invention through the following specific examples. The specific implementation will be described in detail below. But not as a limitation to the present invention.

[0023] The technical solution we propose is to use the stimulated Raman effect to increase the pump power of the remote pump amplifier by means of power transfer from the auxiliary pump.

[0024] As shown in FIG. 3 , it is a structural diagram of a remote pump transmission system according to an embodiment of the present invention. The remote pump transmission system includes: a multiplexer 2, a demultiplexer 3 and a remote pump amplifier 1 in the transmission link of the optical transmission system;

[0025] Among them, the remote pump amplifier 1 adds an auxiliary pump...

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Abstract

The invention discloses a remote pump transmission system which utilizes the Stimulated Raman effect to improve pumping performance, which comprises a transmitting end and a receiving end of an optical transmission system and a remote pump amplifier in a transmission link, wherein the remote pump amplifier comprises a main pumping source, at least an auxiliary pumping source, and a wave combiner. The auxiliary pumping source and the main pumping source are coupled in a bypass optical fiber through the wave combiner, which are used as pumping sources of the remote pump amplifier, in the transmission process of the optical fiber, the energy of the auxiliary pumping source is released to the main pumping source, thereby improving the pumping efficiency of the remote pump amplifier by the energy transition of the pumping light. The wave combiner is arranged on an entrance of a light signal channel where the bypass optical fiber is imported, and the wave combiner is used for combining optical waves which are transferred by the auxiliary pumping source and the main pumping source, and the optical waves are input into the light signal channel by the wave combiner. The invention can effectively improve the efficiency of the pump, thereby reaching the purpose of improving the transmission distance of single-section.

Description

technical field [0001] The invention relates to a remote pump transmission technology in the field of optical communication, in particular to a remote pump transmission system that utilizes the stimulated Raman effect to improve pumping performance. Background technique [0002] In recent years, the application of remote pump technology has been increasing, mainly because of some special occasions, such as: when crossing straits, offshore, or crossing uninhabited areas (such as deserts, swamps, forests, etc.), it is impossible to provide power supply or establish relay stations. In other regions, remote pump technology has become the only solution. The remote pumping technology is to embed a section of erbium-doped optical fiber when laying the transmission optical fiber, and provide pumping light at the remote site to realize the amplification of the transmitted optical signal. Application mode: 1) Single-fiber backward ROPA, 2) Dual-fiber backward ROPA, 3) Dual-fiber bidi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02F1/35G02F1/365G02F1/39H04B10/17H04B10/12H04B10/291
Inventor 苏婕
Owner ZTE CORP
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