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Equipment for regenerating all-optical signal and its method

A technology of optical signal and equipment, applied in the coupling of optical waveguide, optical fiber transmission, electromagnetic wave transmission system, etc., can solve the problem of complex optical clock extraction

Inactive Publication Date: 2004-03-03
SAMSUNG ELECTRONICS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, optical clock extraction is a very complex technology that is still in its infancy

Method used

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  • Equipment for regenerating all-optical signal and its method
  • Equipment for regenerating all-optical signal and its method
  • Equipment for regenerating all-optical signal and its method

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Embodiment Construction

[0020] Hereinafter, an apparatus for regenerating an all-optical signal and a method thereof according to preferred embodiments of the present invention will be described with reference to the accompanying drawings. In the following description of the present invention, a detailed description of known functions and structures incorporated herein will be omitted when it would make the subject matter of the present invention unclear.

[0021] refer to figure 1 , according to the all-optical 3R regeneration equipment of the present invention comprises 40GHz optical clock generating part 100, optical signal sampling part 200, power comparator 300, optical switch 400, optical signal shaping part 500, all-optical return-to-zero code (RZ) / non-return Zero code (NRZ) conversion section 600 and continuous wave (CW) laser 700 .

[0022] The 40GHz optical clock generating section 100 generates an ultrashort optical pulse train at a frequency of 40GHz.

[0023] The optical signal samplin...

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Abstract

Disclosed are an apparatus for regenerating a distorted optical signal through reamplification, regenerating, and retiming processes in an optical communication network and a method thereof. The apparatus includes an optical clock generation section for generating an optical clock signal of a specified frequency, an optical signal sampling section for sampling a distorted non-return-to-zero (NRZ) optical signal in synchronization with the clock signal from the optical clock generation section, an optical signal regenerating section for regenerating an output signal of the sampling section, and a return-to-zero (RZ) / NRZ conversion section for converting the optical signal reshaped by the optical signal regenerating section into an NRZ optical signal. The apparatus overcomes the limitations of the signal processing speed produced in the electric 3R type regenerator, and enable the signal regenerating to be performed without the necessity of an optical clock extraction apparatus.

Description

technical field [0001] The present invention relates to a device and method for regenerating all-optical signals. Distorted optical signals are regenerated through regenerating, reamplification and retiming processes in an optical communication network. Background technique [0002] Recently, with the increasing data traffic on the Internet, a large-capacity wavelength division multiplexing (WDM) optical communication network has been demanded. The response to this demand may include long-distance WDM optical transmission networks that accommodate high-speed data of 10 to 40 Gb / s per channel, optical cross-connect (OXC), optical add / drop multiplexers (OADM), Large-capacity optical communication networks such as optical routers. In such optical communication networks, the dispersion and nonlinear effects generated in the optical fiber, the amplified spontaneous emission (ASE) noise generated by the Erbium-doped fiber amplifier (EDFA), and the noise generated in optical nodes...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04B10/556H04B10/07H04B10/2507H04B10/299
CPCH04B10/299H04B10/00
Inventor 李基喆吴润济
Owner SAMSUNG ELECTRONICS CO LTD