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Multipoint, contention-free wavelength selective switch (wss)

A technology of wavelength and selectivity, applied in multiplex system selection device, selection device, multiplex communication, etc., can solve impractical problems

Active Publication Date: 2020-03-10
NISTICA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

This is somewhat impractical for devices with a larger number of ports because of the large amount of space required to be allocated on the surface of the LCOS array

Method used

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  • Multipoint, contention-free wavelength selective switch (wss)
  • Multipoint, contention-free wavelength selective switch (wss)
  • Multipoint, contention-free wavelength selective switch (wss)

Examples

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Embodiment Construction

[0017] Figure 2A and 2B Top and side views, respectively, of an example of a simplified optical device such as a multipoint contention-free wavelength selective switch (WSS) 100 that can be used in conjunction with embodiments of the present invention. Figure 2A The top view of is also called the dispersion plane in this paper, Figure 2B The side view of is also referred to herein as the switch plan. Light is input and output to WSS 100 through optical waveguides, such as optical fibers, which function as input and output ports. as from Figure 2B As clearly seen in , the input port array 101 may include a collimator 102 respectively coupled to l , 102 2 , 102 3 ...102 m Multiple monomer input fibers 101 1 , 101 2 , 101 3 ...10l m . Light from one or more input fibers 101 is converted by a collimator 102 into a free-space beam. Light exiting the input port array 101 is parallel to the z-axis. Although in figure 1 Only four fiber / collimator pairs are shown for...

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Abstract

An optical device includes a plurality of optical input ports, a plurality of optical output ports, a wavelength dispersing device and at least one beam steering device. A plurality of optical input ports are configured to receive light beams each having a plurality of wavelength components. A wavelength dispersing device receives the light beams and spatially separates each light beam into a plurality of wavelength components. The beam steering device has a first region into which the spatially separated wavelength components are directed, and a second region, any subset of the plurality of wavelength components of the respective beams, the wavelength components in the respective subsets being spatially recombined with each other It is then selectively directed onto a second area. The beam steering means selectively directs respective subsets of the plurality of wavelength components to a different one of the optical output ports.

Description

[0001] Cross References to Related Applications [0002] This application claims the benefit of US Provisional Patent Application No. 62 / 113,738, filed February 9, 2015, entitled "Multipoint, Contention-Free Wavelength Selective Switch (WSS)," the contents of which are incorporated herein by reference. Background technique [0003] In an optical communication network, an optical signal having multiple optical channels (ie, channels) at different wavelengths is transmitted from one location to another, typically over a length of optical fiber. Various different types of optical switches are available that enable the switching of optical signals from one optical fiber to another. A Wavelength Selective Switch (WSS) can facilitate configurable wavelength-dependent switching, that is, it enables certain wavelength channels to be switched from a first fiber to a second fiber while leaving other wavelength channels in the first fiber propagation, or it enables certain wavelength ch...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G02B6/35
CPCG02B6/3542H04Q2011/0024H04Q2011/0041H04Q2011/0026H04Q11/0005H04Q2011/0016G02B6/12007G02B5/204G02B6/354H04Q2011/0047H04Q2011/0058
Inventor 杰斐逊·L·瓦格纳
Owner NISTICA