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An apparatus and method for generating unbalanced optical sidebands with gap separation

A useless sideband and sideband technology, applied in the field of network communication, can solve the problem of low cost performance

Active Publication Date: 2018-07-13
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Coherent detection can meet ROSNR requirements, but may not be cost-effective due to additional components such as mixing stirrers and local oscillators

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  • An apparatus and method for generating unbalanced optical sidebands with gap separation
  • An apparatus and method for generating unbalanced optical sidebands with gap separation
  • An apparatus and method for generating unbalanced optical sidebands with gap separation

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Embodiment Construction

[0027] It should be understood at the outset that, although an illustrative implementation of one or more embodiments is provided below, the disclosed systems and / or methods may be implemented using any number of techniques, whether currently known or in existence. The invention should in no way be limited to the illustrative implementations, drawings, and techniques illustrated below, including the exemplary designs and implementations illustrated and described herein, but rather be within the scope of the appended claims and their equivalents Modified within the full range of .

[0028] A system, apparatus, and / or method for generating unbalanced gap sidebands by an optical transmitter is disclosed herein. The disclosed optical transmitters can be used to operate in single-wavelength and multi-wavelength optical systems. A separation between a carrier signal and said corresponding sideband may be generated by introducing a gap between a subcarrier modulated (SCM) signal and...

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Abstract

An apparatus comprising a transmitter for generating an optical signal comprising at least two sidebands modulating a carrier with information modulated thereon, wherein between the sidebands and the carrier In the frequency domain between , the information introduces a separation gap in which one sideband is an unwanted sideband and the other sideband is a useful sideband with a higher power strength than the unwanted sideband. A method comprising receiving an optical carrier from a light source, modulating a signal of said optical carrier with at least two sidebands having information modulated thereon, wherein between said sidebands and said carrier In the frequency domain of , the information introduces a separation gap in which one sideband is an unwanted sideband and the other sideband is a useful sideband with a higher power strength than the unwanted sideband.

Description

[0001] Related Applications Cross Application [0002] This application claims prior-application priority to U.S. Patent Application Serial No. 14 / 024,788, filed September 12, 2013, entitled "Optical Transmitter with Gap-Separated Unbalanced Optical Sidebands," The content of this prior application is incorporated herein by reference. technical field [0003] The present invention relates to the field of network communications, and more particularly, in particular embodiments, to an optical transmitter with gap-separated unbalanced optical sidebands. Background technique [0004] The rapidly increasing demand for bandwidth has driven the development of optical transmitters capable of providing high-speed data transmission. One strategy for developing optical transmitters for high-speed data transmission depends on the high availability of electro-optic based devices. However, using a multilevel format, such as quadrature amplitude modulation (QAM), enables high-speed data ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04B10/516H04B10/54H04J14/02
CPCH04B10/5165H04B10/541H04J14/0305H04J14/08
Inventor 温阳敬廖春雷沈晓白聿生
Owner HUAWEI TECH CO LTD