A device and method for realizing an optical network node
An optical network node and unified technology, which is applied in the direction of selection devices, selection devices, electrical components, etc. Effect
Active Publication Date: 2011-11-30
ZTE CORP
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[0010] The purpose of the embodiments of the present invention is to provide a device and method for realizing optical network nodes, which can realize non-blocking and large-capacity optical switching network, and solve the technical problem that the existing technology cannot realize complete non-blocking transmission
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[0041] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention more clear, specific embodiments will be described in detail below with reference to the accompanying drawings.
[0042] In order to overcome some disadvantages of using the existing OXC and ROADM technologies to build large-scale optical switching networks, the present invention proposes a brand-new node device for building a non-blocking, large-capacity optical switching network using an optical cross matrix and a fixed wavelength converter .
[0043] image 3 A schematic diagram of the structure of an equivalent non-blocking large-scale optical network device is given. As shown in the figure, the device of the present invention mainly includes a service input demultiplexing module 110 (including a plurality of input ports, and each input port corresponds to an input direction), a wavelength sorting array 120, a direction selection array 130, a non-impeding co...
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The present invention provides a device and method for realizing an optical network node. The device includes: a plurality of input ports, a wavelength sorting array, a direction selection array, a non-obstructive transformation array, and a plurality of output ports; the input port is used for: The optical signal of the direction is demultiplexed into multiple single-wavelength optical signals; the wavelength sorting array is used for: arranging the single-wavelength optical signals in a predetermined order; the direction selection array is used for: for each channel after arrangement The single-wavelength optical signal is assigned an output direction; the non-blocking conversion array is used for: performing wavelength conversion on multiple single-wavelength optical signals assigned to the same output direction, forming multiple wavelengths in the same output direction in order. A single-wavelength optical signal; the output port is used to: multiplex and output multiple single-wavelength optical signals in the same output direction whose wavelengths are arranged in sequence. The invention realizes the unimpeded transmission of the light wavelength and improves the universality of the port.
Description
technical field [0001] The invention relates to optical switching and optical routing of a wavelength division multiplexing optical network in the field of optical communication, in particular to a device and method for realizing optical network nodes. Background technique [0002] In recent years, due to the explosive development of data services represented by IP (Internet Protocol, Internet Protocol) at a rate of doubling every 6-9 months, this has created a huge demand for transmission bandwidth. DWDM (DenseWavelength-Division Multiplexing, The wide adoption of dense wavelength division multiplexing (DWDM) technology provides abundant bandwidth resources for the network, but at the same time, it also makes network switching nodes become the bottleneck of network development. To this end, many equipment manufacturers and organizations have proposed various solutions such as OXC (Optical Cross Connects) and ROADM (Reconfigurable Optical Add Drop Multiplexe) to eliminate no...
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IPC IPC(8): H04Q11/00H04J14/02
Inventor 王巍鑫赵勇程智刚
Owner ZTE CORP