Integrated dynamic light add and drop multiplexer module based on filter wave light switch unit

An optical add-drop multiplexing and switching unit technology, which is applied in wavelength division multiplexing systems, optical filters, electrical components, etc. Simple, easy-to-integrate effects

Inactive Publication Date: 2004-12-15
SHANGHAI JIAO TONG UNIV
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Problems solved by technology

However, it is difficult to accurately locate the relative positions of the two filters in the filter pair o

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  • Integrated dynamic light add and drop multiplexer module based on filter wave light switch unit
  • Integrated dynamic light add and drop multiplexer module based on filter wave light switch unit

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Embodiment Construction

[0015] The technical solutions of the present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0016] figure 1 Shown in is an 8-channel (take 8-channel as an example, but not limited to 8-channel) integrated dynamic optical add-drop multiplexing module structure based on filter optical switch unit, and the number of channels can be increased according to the structure in the figure or reduce. This 8-channel reconfigurable optical add-drop multiplexing module is composed of 8 filter optical switch units, and each filter optical switch unit has four ports with pigtails, namely input port 1, output port 2, add port 3, drop port The output port 2 of each filter optical switch unit is connected to the input port 1 of the next filter optical switch unit through an optical fiber. See the attached figure 2 .

[0017] Such as figure 2 As shown, each filtering optical switch unit is composed of a fixed thin-film filtering ...

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Abstract

An integrate dynamic light bifurcate multiplexing module base on filtration optical switch units is composed of wantonly multiple filter optical switch units, each having four ports of input, output, an up path and a down path with tail fibers, the output port of each is connected with the input port of the adjacent rear unit via fibers, every switch unit is composed of a fixed film filtration de-multiplexing unit including a double collimator adhered with a bandpass filter film at the front and an ordinary double core collimator and a total reflection film which position in the light channel is adjusted by a mobile device to realize that the wave lengths of the up and down path light signals are adjustable.

Description

Technical field: [0001] The invention relates to a filtering optical switch unit and its integrated dynamic optical add-drop multiplexing module, which integrates the function of a thin film filter and a mechanical optical switch, and realizes it in an integrated manner through specified optical connection and electromechanical control. The multiplexing function, demultiplexing function and add / drop function of the wavelength division multiplexing optical communication system are applicable to the wavelength division multiplexing optical fiber communication system and network. Background technique: [0002] In the wavelength division multiplexing (WDM) optical communication system, the optical add-drop multiplexer (OADM) provides the direct, add (insert) and drop (drop) functions of the wavelength channel, and is one of the core node devices. [0003] OADM is divided into fixed type and dynamic type. The fixed OADM is mostly used in simple WDM linear transmission systems, a...

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Application Information

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IPC IPC(8): G02B5/20H04J14/02
Inventor 胡卫生胡佩钢王悦肖石林陆旸
Owner SHANGHAI JIAO TONG UNIV
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