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Optical fiber eigenmode multiplexing communication method and system

A multiplexing communication and eigenmode technology, applied in the field of optical fiber communication and guided wave optics, can solve the problems of increasing system cost, complexity, growth, etc., to cope with the new capacity crisis, improve capacity and spectrum efficiency, and achieve sustainable The effect of expansion

Active Publication Date: 2017-09-15
HUAZHONG UNIV OF SCI & TECH
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Problems solved by technology

In addition, for the traditional mode-division multiplexing based on linear polarization mode, due to the serious mode crosstalk between linear polarization modes, it is necessary to supplement the multiple-input multiple-output digital signal processing technology (Multiple-Input Multiple-Output Digital Signal Processing Technology) in the linear polarization mode multiplexing communication system. Signal Processing, MIMO-DSP), which significantly increases the cost and complexity of the system, and increases dramatically with the number of modes

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  • Optical fiber eigenmode multiplexing communication method and system
  • Optical fiber eigenmode multiplexing communication method and system
  • Optical fiber eigenmode multiplexing communication method and system

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Embodiment Construction

[0027] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0028] The present invention provides an optical fiber eigenmode multiplexing communication method and system, aiming at directly using the optical fiber eigenmode as a data information carrier, providing a new method for realizing multi-channel optical fiber eigenmode low crosstalk multiplexing communication and a system based on the method. Eigenmode multiplexing communication system. The goal is to use the multi-channel eigenmodes of multimode fibers for low-crosstalk eigenmode multiplexing communication without MIMO-DSP technology, by constructing and combining multiple transmitters, multi-chan...

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Abstract

The invention discloses an optical fiber eigenmode multiplexing communication method and system. The method comprises the following steps: directly taking optical fiber eigenmode as an information carrier, and then performing low-crosstalk multiplexing transmission on multiple optical fiber eigenmodes in the eigenmode separated multi-model optical fiber. The system comprises a transmitting end, a multichannel eigenmode multiplexer, the eigenmode separated multimode optical fiber, the eigenmode separated optical amplifier, a multichannel eigenmode de-multiplexer and a receiving end; the effective refractive index difference between the multichannel optical fiber eigenmodes supported by the eigenmode separated multimode optical fiber is large and the crosstalk is low; the multichannel eigenmode multiplexer realizes the conversion and the multiplexing to the optical fiber eigenmode from the multichannel Gaussian mode; the multichannel eigenmode multiplexer realizes the conversion and de-multiplexing to the Gaussian mode from the multichannel optical fiber eigenmode; the multiplexing and the de-multiplexing are extensible and provide the single mode optical fiber interface. The optical fiber eigenmode multiplexing communication method disclosed by the invention supports the low-crosstalk multiplexing communication of the multichannel optical fiber eigenmode, the multi-in and multi-out digital signal processing is unnecessary, the single model optical fiber is compatible, and the communication capacity and the spectrum efficiency can be effectively improved.

Description

technical field [0001] The invention belongs to the field of optical fiber communication and guided wave optics, and more specifically relates to a communication method and system for optical fiber eigenmode multiplexing. Background technique [0002] With the high informatization of society, higher requirements are put forward for optical communication systems, especially backbone optical communication systems, which are characterized by large information capacity, long transmission distance, high communication quality and good system reliability. According to the current development speed, the capacity of the entire network will increase by at least 100 times in the next ten years, while the increase in the capacity of conventional single-mode optical fiber communication systems during the same period will lag behind the growth rate of network traffic by an order of magnitude. At the same time, with the rapid development of the mobile Internet in recent years, the amount o...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04B10/2581H04B10/291H04B10/40H04J14/04
CPCH04B10/2581H04B10/291H04B10/40H04J14/04
Inventor 王健刘俊
Owner HUAZHONG UNIV OF SCI & TECH
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