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Wavelength selective switch having integrated channel monitor

A wavelength, optical technology, applied in the field of wavelength selective switch with integrated channel monitor, can solve the problem of impracticality

Inactive Publication Date: 2016-01-06
莫仕有限责任公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

While this is feasible for some technologies such as digital micromirror devices (DMD), it is impractical for others such as liquid crystal and liquid crystal on silicon (LCoS) technologies

Method used

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  • Wavelength selective switch having integrated channel monitor
  • Wavelength selective switch having integrated channel monitor
  • Wavelength selective switch having integrated channel monitor

Examples

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Embodiment Construction

[0012] figure 1 A functional block diagram of one example of a wavelength selective switch (WSS) 100 including an integrated channel monitor is shown. As shown, three distinct functional elements are depicted: two 1xnWSSs, represented by WSSs 110 and 120; and an Optical Channel Monitor 130 (OCM). However, it should be noted that, as described below, different functions may be incorporated into a single physical switching device.

[0013] WSS 110 includes an input port 112 and an output port 114 1 、114 2 、114 3 、114 4 and 114 5 ("114"). Switch structure 116 optically couples input port 112 to output port 114 to enable optical signals received at input port 112 to be selectively directed to one of output ports 114 under the control of switch controller 140 . Similarly, WSS 120 includes an input port 122 and an output port 124 1 、124 2 、124 3 、124 4 and 1124 5 ("124"). Switch structure 126 optically couples input port 122 to output port 124 such that an optical signa...

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PUM

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Abstract

An optical device includes an optical port array having first and second optical inputs for receiving optical beams and a first plurality of optical outputs associated with switching functionality and a second plurality of optical outputs associated with channel monitoring functionality. A dispersion element receives the optical beam from an input and spatially separates the beam into a plurality of wavelength components. The focusing element focuses the wavelength components. The optical path conversion system receives the plurality of wavelength components and selectively directs each one to a prescribed one of the optical ports. The photodetectors are each associated with one of the optical outputs in the second plurality of optical outputs and receive a wavelength component therefrom. The controller causes the optical path conversion system to simultaneously direct each of the wavelength components to a different one of the optical outputs of the second plurality of optical outputs.

Description

Background technique [0001] Fiber optic communication systems typically use wavelength division multiplexing (WDM), which is a technique for using optical fibers to carry many spectrally separated independent optical channels. In terms of wavelengths, the optical channels are centered on separate channel wavelengths, typically spaced 25, 50, 100 or 200 GHz apart in dense wavelength division multiplexing WDM (WDM) systems. The information content carried by optical channels travels over a limited wavelength band, which is usually narrower than the spacing between channels. [0002] Optical channel monitoring is increasingly used by telecom operators and multi-service operators of fiber optic systems. As the traffic on optical networks increases, monitoring and management of the network is becoming an increasingly important issue. In order to monitor a network, the spectral characteristics of the composite signal at specific points in the network must be determined and analyze...

Claims

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Application Information

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IPC IPC(8): H04B10/40H04B10/07H04J14/02
CPCG02F1/31H04Q11/0005H04Q2011/0016H04Q2011/0022H04Q2011/0026H04Q2011/0049G02B6/35H04J14/0212H04J2203/0005G02B6/293H04B10/07955H04B10/07957H04J14/02
Inventor 杰斐逊·L·瓦格纳
Owner 莫仕有限责任公司
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