A Transmission System of Dual Polarized Optical Signals

A transmission system, dual polarization technology, applied in the field of optical signal transmission, can solve the problem of high cost of optical transmission equipment, and achieve the effect of reducing receiving cost and demodulation complexity

Active Publication Date: 2019-08-20
WUHAN POST & TELECOMM RES INST CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] The purpose of the embodiments of the present invention is to provide a dual-polarized optical signal transmission system to solve the problem of high cost of existing optical transmission equipment

Method used

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  • A Transmission System of Dual Polarized Optical Signals
  • A Transmission System of Dual Polarized Optical Signals
  • A Transmission System of Dual Polarized Optical Signals

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Embodiment Construction

[0011] 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.

[0012] In order to illustrate the technical solutions of the present invention, specific examples are used below to illustrate.

[0013] Such as figure 1 Shown is a structural diagram of a dual-polarized optical signal transmission system shown in an exemplary embodiment of the present invention, and the transmission system includes:

[0014] The dual-polarized optical signal transmitting device 101, the transmission link 102, and the dual-polarized optical signal receiving device 103 connected in sequence, the dual-polarized optical signal transmitting device generates a multi-channel optical sig...

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Abstract

The invention is suitable for the field of the optical signal transmission, and provides a transmission system of a dual-polarization optical signal. The transmission system comprises a dual-polarization optical signal sending device, a transmission link and a dual-polarization optical signal receiving device connected in order; the dual-polarization optical signal sending device produces a multi-path optical signal with dual-polarization transmission information and sends the optical signal to the transmission link; the transmission link sends the optical signal to the dual-polarization optical signal receiving device through a multi-core optical fiber; the dual-polarization optical signal receiving device demodulates the optical signal to acquire the dual-polarization transmission information. Through the transmission system disclosed by the embodiment of the invention, the dual-polarization optical signal receiving device at a receiving end does not need a local laser and is unnecessary to integrate a coherent receiver, the receiving cost of the dual-polarization optical signal is greatly reduced, and the frequency offset compensation is inexistent since the local laser is not required, and the demodulation complexity of the system is reduced.

Description

technical field [0001] The invention belongs to the field of optical signal transmission, in particular to a transmission system for dual-polarized optical signals. Background technique [0002] With the continuous rise of the Internet and various cloud services, various emerging services, such as high-definition video, virtual reality technology, etc., require a rapid increase in the transmission capacity and performance of traditional networks for signal transmission. At present, the coherent optical transmission system used in the backbone network is widely used because it can increase the transmission capacity by means of polarization multiplexing and improve the receiving sensitivity through coherent receiving technology, but its transmission cost is relatively high. On the other hand, the massive access of various mobile terminals requires further reduction of network costs. The traditional direct modulation and direct detection technology has been widely used because...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04B10/40H04B10/25H04B10/61
Inventor 黎偲李响杨奇
Owner WUHAN POST & TELECOMM RES INST CO LTD
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