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Receiver for optical transverse-mode-multiplexed signals

An optical receiver and signal technology, applied in optical mode multiplexing systems, electromagnetic receivers, electromagnetic transceivers, etc., can solve problems such as insufficient hardware development

Inactive Publication Date: 2012-05-16
ALCATEL LUCENT SAS
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the hardware for implementing optical MIMO has not been fully developed

Method used

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  • Receiver for optical transverse-mode-multiplexed signals
  • Receiver for optical transverse-mode-multiplexed signals
  • Receiver for optical transverse-mode-multiplexed signals

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Embodiment Construction

[0026] optical communication system

[0027] figure 1 A block diagram of an optical communication system 100 in which various embodiments of the invention can be practiced is shown. System 100 includes a plurality of communication nodes 110 interconnected by a network of optical communication links 120 . System 100 further includes optical add-drop multiplexers (ADMs) 130 , optical amplifiers 140 , and optical cross-connects 150 , all of which are inserted between nodes 110 in various forms.

[0028] Each node 110 has an optical multiple-input multiple-output (MIMO) function realized by using transverse mode multiplexing (TMM). Node 110 typically includes an optical transmitter and an optical receiver ( figure 1 None of which are explicitly shown) to support bi-directional communication between the various nodes of the system 100. In addition to TMM multiplexing, each node 110 may also use wavelength division multiplexing (WDM) and / or polarization multiplexing (PM), or...

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Abstract

A representative optical receiver of the invention receives an optical transverse-mode-multiplexed (TMM) signal through a multimode fiber that supports a plurality of transverse modes. The optical receiver has a plurality of optical detectors operatively coupled to a digital signal processor configured to process the TMM signal to determine its modal composition. Based on the determined modal composition, the optical receiver demodulates each of the independently modulated components of the TMM signal to recover the data encoded onto the TMM signal at the remote transmitter.

Description

[0001] Cross References to Related Applications [0002] The subject of this application concerns R.-J. Essiambre, R. Ryf and P. Winzer, attorney case number Essiambre 22-36, filed on the same date as this application, entitled "Transverse-Mode Multiplexing for Optical Communication Systems (with Transverse-Mode Multiplexing in Optical Communication Systems), U.S. Patent Application No. 12 / 492,399, which is hereby incorporated by reference in its entirety. technical field [0003] The present invention relates to optical communication equipment, in particular but not exclusively to equipment supporting transverse mode multiplexing (TMM) in optical communication systems. Background technique [0004] This section introduces aspects that may help facilitate a better understanding of the invention. Accordingly, the description in this section should be read in this light and should not be construed as an admission of what is or is not prior art. [0005] Wireless communicati...

Claims

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Application Information

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IPC IPC(8): H04B10/13H04B10/158G02B6/26H04B10/148H04B10/2581H04B10/60H04B10/61
CPCH04B10/60G02B6/2848H04B10/611H04B10/614H04J14/04H04B10/2581G02B6/14H04B10/65G02B6/26H04B10/40
Inventor R-J·埃西安布尔R·赖夫P·J·温泽尔
Owner ALCATEL LUCENT SAS
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