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Reconfigurable optical add-drop multiplexer which multiport can be extracted or pluggable

An add-drop multiplexer and multi-port technology, applied in wavelength division multiplexing systems, optical waveguide coupling, electromagnetic wave transmission systems, etc., can solve the problem that a single device cannot be reconfigured, and multiple wavelengths cannot be divided/inserted at the same time etc. to achieve enhanced functions, reduced device size, and flexible configuration

Inactive Publication Date: 2009-06-17
ZHEJIANG UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In order to overcome the disadvantages that the optical add / drop multiplexer in the prior art cannot drop / add multiple wavelengths at the same time, and a single device cannot realize reconfiguration, the present invention proposes a reconfigurable optical splitter that simultaneously drops or inserts multiple ports. Insert multiplexer

Method used

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  • Reconfigurable optical add-drop multiplexer which multiport can be extracted or pluggable
  • Reconfigurable optical add-drop multiplexer which multiport can be extracted or pluggable
  • Reconfigurable optical add-drop multiplexer which multiport can be extracted or pluggable

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Embodiment 1

[0030]As an alternative, refer to figure 1 ~3, a reconfigurable optical add-drop multiplexer with two ports simultaneously dropped or inserted, including four ports 1, 2, 3, 4 on the same side, the four ports are respectively connected to four optical fibers 100 , 200, 300, and 400 are connected to receive and process optical signals for input, drop / insert, and output. The four optical fibers are fixed on the optical fiber fastener 5 for transmitting the optical signals into and from the gradient index fiber collimator 6 . The gradient index fiber collimator uses its specially designed refractive index distribution to determine the trajectory of light waves transmitted inside it, so as to guide the input signal to a specific area of ​​the filter reflection module 7, and direct the through, drop / insert The signals are directed to respective corresponding optical fibers. The filter reflection module includes N filter reflection units, the filter reflection unit 14 is composed ...

Embodiment 2

[0043] refer to figure 1 to Figure 3 and Figure 4a , a reconfigurable optical add-drop multiplexer for simultaneous drop or insertion of multiple ports, a reconfigurable optical add-drop multiplexer for simultaneous drop-off of two ports, or a reconfigurable optical add-drop multiplexer for simultaneous drop-in of two ports Insert multiplexer, can select and configure 8 wavelengths in total, and can drop or insert 2 wavelengths at a time.

[0044] The rest are the same as the first embodiment

Embodiment 3

[0046] refer to figure 1 to Figure 3 and Figure 4b , according to the same working principle, a reconfigurable optical add-drop multiplexer with simultaneous drop or insertion of multiple ports is a reconfigurable optical add-drop multiplexer with simultaneous drop of four ports, or a four-port The reconfigurable optical add / drop multiplexer inserted at the same time can select and configure 8 wavelengths in total, and can drop or insert 4 wavelengths at a time.

[0047] The rest are the same as the first embodiment

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Abstract

The invention relates to a reconfigurable optical add / drop multiplexer (OADM) with the multiple ports separated or inserted at the same time, wherein, the ports of the multiplexer are positioned at the same side of a device; the multiplexer consists of an input optical fiber, an output optical fiber, N separation / insertion optical fibers, an optical fiber fastener, a gradient refractive index optical fiber collimator, a filtering reflection module and a singlechip control module; the optical fibers used for input, output and separation / insertion are fixed on the optical fiber fastener to be connected with the ports; the optical fiber fastener is a mechanical disc used to fix the optical fibers; the gradient refractive index optical fiber collimator, which is an optical fiber device with unevenly distributed refractive index, is used to guide through signal, separation signal and insertion signal to the optical fiber corresponding to each signal; the filtering reflection module is a precision mechanical disc on which N filtering reflection units are symmetrically arranged around the center; each filtering reflection unit consists of a filter and a reflector capable of realizing high efficiency reflection of the wavelength filtered out by the filter; moreover, the singlechip control module adopts a singlechip to control a step motor, thereby driving the filtering reflection module to rotate along a precise guide rail.

Description

(1) Technical field [0001] The invention belongs to a passive optoelectronic device in the field of optical fiber communication, in particular a functional device capable of performing straight-through, drop-off and insertion operations on communication traffic, and is suitable for optical fiber communication network nodes that perform all-optical transmission and exchange of communication traffic , bureau, station and other occasions. (2) Background technology [0002] In recent years, Internet services, multimedia services, and digital mobile communication services have developed rapidly, causing great pressure on existing communication networks. The development of wavelength division multiplexing all-optical network has become the first choice for the construction of optical transmission network. The optical add-drop multiplexer (OADM) is one of the key network elements of the wavelength division multiplexing optical network. It can realize the add-drop function of the w...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G02B6/34H04B10/02H04J14/02
Inventor 董文乐孜纯
Owner ZHEJIANG UNIV OF TECH