WAVELENGTH ROUTING DEVICE
First Claim
1. A wavelength routing device comprising:
- an input stage comprising 2N input ports;
an output stage comprising 2N output ports;
a primary circuit comprising N 2×
2 wavelength switches; and
a secondary circuit comprising two N×
N wavelength routers, each N×
N wavelength router comprising a quantity of 2×
2 wavelength switches,wherein N is a positive integer, and the 2N input ports of the input stage are connected to 2N input ports of the N 2×
2 wavelength switches in the primary circuit in one-to-one correspondence, wherein 2N output ports of the N 2×
2 wavelength switches in the primary circuit are connected to 2N input ports of the two N×
N wavelength routers in the secondary circuit in one-to-one correspondence, and wherein 2N output ports of the two N×
N wavelength routers in the secondary circuit are connected to the 2N output ports of the output stage in one-to-one correspondence.
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Accused Products
Abstract
A wavelength routing device is disclosed, wherein the device includes: a primary circuit, and a secondary circuit, where the primary circuit includes N 2×2 wavelength switches, the secondary circuit includes two N×N wavelength routers, and each N×N wavelength router includes at least one 2×2 wavelength switch, where a value of N is 2n, n being a positive integer; and an input port of each 2×2 wavelength switch in the primary circuit is connected to an input stage, an output port of each 2×2 wavelength switch is connected to an input port of an N×N wavelength router of the secondary circuit, and an output port of the N×N wavelength router of the secondary circuit is connected to an output stage.
17 Citations
6 Claims
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1. A wavelength routing device comprising:
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an input stage comprising 2N input ports; an output stage comprising 2N output ports; a primary circuit comprising N 2×
2 wavelength switches; anda secondary circuit comprising two N×
N wavelength routers, each N×
N wavelength router comprising a quantity of 2×
2 wavelength switches,wherein N is a positive integer, and the 2N input ports of the input stage are connected to 2N input ports of the N 2×
2 wavelength switches in the primary circuit in one-to-one correspondence, wherein 2N output ports of the N 2×
2 wavelength switches in the primary circuit are connected to 2N input ports of the two N×
N wavelength routers in the secondary circuit in one-to-one correspondence, and wherein 2N output ports of the two N×
N wavelength routers in the secondary circuit are connected to the 2N output ports of the output stage in one-to-one correspondence. - View Dependent Claims (2, 3, 4, 5, 6)
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Specification
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- Resources
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Current AssigneeFuturewei Technologies Incorporated (Huawei Investment & Holding Co., Ltd.)
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Original AssigneeHuawei Technologies Co., Ltd. (Huawei Investment & Holding Co., Ltd.)
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InventorsQiu, Chen, Hao, Qinfen, Liu, Yaoda
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Application NumberUS15/132,621Publication NumberTime in Patent OfficeDaysField of SearchUS Class Current1/1CPC Class CodesH04Q 11/0005 Switch and router aspectsH04Q 2011/0009 using wavelength filters
