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Function integration type reconfigurable optical add/drop multiplexing module

An optical add-drop multiplexing and integrated technology, which is applied in the field of optical fiber communication systems and networks, can solve problems such as complex structure, high cost, and large volume, and achieve the effects of cost reduction, easy integration, and simple module implementation

Inactive Publication Date: 2003-05-07
SHANGHAI JIAO TONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The results show that most OADMs include wavelength division multiplexers, demultiplexers, optical switches and other passive components, which are complex in structure, large in size and high in cost
Although other OADMs have a simpler structure, they are more difficult to implement and cost more

Method used

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  • Function integration type reconfigurable optical add/drop multiplexing module
  • Function integration type reconfigurable optical add/drop multiplexing module
  • Function integration type reconfigurable optical add/drop multiplexing module

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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] In this embodiment, an 8-channel function-integrated reconfigurable optical add-drop multiplexing module can realize the adjustable uplink and downlink of 8 WDM signal optical wavelengths, wherein the 8 WDM signal optical wavelengths are λ 1 ,...,λ 8 (1538.15, 1541.35, 1544.55, 1547.75, 155 0.95, 1556.1 5, 1559.35, 1562.5nm), the incident angle of signal light is 5 degrees.

[0017] An 8-channel function-integrated reconfigurable optical add-drop multiplexing module structure such as figure 1 As shown, it includes 8 optical filter pairs, and each filter pair has four ports with pigtails, that is, input and output ports and add / drop ports, where the output port 2 of each filter pair is connected to the next filter pair connected to input port 1. Each filter pair realizes the wavelength tuning process of the add and dr...

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Abstract

The module is composed of any number of the optical filter pair. Each filter pair possesses the input, output, upper and lower port with the tail fiber. The output port of each filter pair through the optical fiber is connected to the input port of the next filter pair. In each filter pair, the band-pass filter and the total reflection filter are fixed on the same substrate and connected on the retractable element. The wavelength of the optical signal in the upper / lower route is adjustable by using the retractable element to adjust the positions of the filters in the optical channel. Any number of the filter pair with dual functions of filtering and optical switch is adopted in the invention so as to provide the integrated functions: the multiplexer, the demultiplexer and the optical switch.

Description

Technical field: [0001] The invention relates to a function-integrated reconfigurable optical add-drop multiplexing module, which uses a plurality of filter pairs with dual functions of filtering and optical switching to realize the functional integration of multiplexing / demultiplexing and optical switching devices, and is suitable for for optical fiber communication systems and networks. technical background: [0002] In the wavelength division multiplexing transmission system (WDM) and the optical transport network (OTN), 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. one. [0003] OADM is divided into non-reconfigurable and reconfigurable. The non-reconfigurable OADM is mostly used in WDM linear transmission systems, and the reconfigurable OADM can dynamically provide services and wavelength management functions, and can be used in more complex multi-wave...

Claims

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Application Information

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IPC IPC(8): G02B5/20H04B10/25H04J14/02
Inventor 王悦胡卫生姜淳金耀辉
Owner SHANGHAI JIAO TONG UNIV
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