Optical splitter and passive optical network system

A passive optical network and optical splitter technology, applied in the field of communication, can solve problems such as light leakage, achieve the effect of low loss and improve uplink transmission efficiency

Active Publication Date: 2019-06-11
HUAWEI TECH CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0007] The embodiment of the present invention provides an optical splitter and a passive optical network system, which solves the problem of optical loss caused by optical leaka

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  • Optical splitter and passive optical network system
  • Optical splitter and passive optical network system
  • Optical splitter and passive optical network system

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Embodiment Construction

[0037] The embodiment of the present invention provides an optical splitter and a passive optical network system, which solves the problem of optical loss caused by optical leakage in the upstream direction of the optical splitter in the prior art, and reduces the optical loss in the upstream direction. The uplink transmission efficiency is improved, and the economy is saved.

[0038] In order to enable those skilled in the art to better understand the solutions of the present invention, the following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only It is an embodiment of a part of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts shall fall within th...

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Abstract

Disclosed are an optical splitter and a passive optical network system. The optical splitter of the embodiments of the present invention comprises a trunk waveguide and a branch waveguide; and the trunk waveguide comprises a trunk single-mode waveguide, a trunk tapered waveguide and a trunk multi-mode waveguide which are coupled in sequence, wherein the trunk multi-mode waveguide comprises a light absorbing material region and a fibre Bragg grating (FBG) region, the light absorbing material region being coupled to the trunk tapered waveguide, and the FBG region being coupled to the branch waveguide. The embodiments of the present invention solve the problem in the prior art of an optical loss caused by light leaking of an optical splitter in an uplink direction, which reduces the optical loss in the uplink direction and improves the uplink transmission efficiency.

Description

technical field [0001] The invention relates to the technical field of communication, in particular to an optical splitter and a passive optical network system. Background technique [0002] With the continuous increase of users' demand for bandwidth, the traditional copper broadband access system is increasingly facing bandwidth bottlenecks. A strong competitor of the first-generation broadband access network, among which the passive optical network is the most competitive. [0003] figure 1 A general structure of a Passive Optical Network (PON) system is shown. Generally speaking, a passive optical network system includes an optical line terminal (Optical Line Terminal, OLT) located in the central office, an optical splitter (Optical Splitter, OS) for branching / coupling, and several optical network units ( Optical Network Unit, ONU), where the OS is at the center of the PON network, and is used to realize the downlink distribution and uplink coupling of optical signal p...

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Application Information

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IPC IPC(8): G02B6/125
CPCG02B6/125
Inventor 陈聪龚健敏
Owner HUAWEI TECH CO LTD
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