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Integrated device of output wave from adjust table dense wave division multiplexing system

A dense wavelength division multiplexing and system integration technology, which is applied in the field of optical waveguide integrated devices supporting output waveform adjustable dense wavelength division multiplexing systems, can solve the problems of large insertion loss and inability to overcome inherent shortcomings of the system, and improve the overall performance, facilitate mass production, and reduce costs

Inactive Publication Date: 2004-09-29
INST OF SEMICONDUCTORS - CHINESE ACAD OF SCI
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Problems solved by technology

The top flattened response is characterized by a high system tolerance rate, which increases the stability of the system, but the disadvantage is that the system has a large insertion loss
Although there are many compromises to improve the performance of the two response curves, the inherent shortcomings of the two response curves cannot be overcome

Method used

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  • Integrated device of output wave from adjust table dense wave division multiplexing system
  • Integrated device of output wave from adjust table dense wave division multiplexing system
  • Integrated device of output wave from adjust table dense wave division multiplexing system

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Embodiment Construction

[0017] see figure 1 It is a schematic diagram describing the structure of a dense wavelength division multiplexing device with adjustable output waveform.

[0018] The present invention is an output waveform adjustable dense wavelength division multiplexing system integrated device, which includes: an input waveguide 10; The electric heating film 21, after the electric heating film 21 is energized, can change the phase of the optical signal in the waveguide below it, and draws a wire (not shown) on the electric heating film; the other end of the Y branch waveguide structure 20 is connected Multimode interferometer (MMI) waveguide structure 30; Multimode interferometer (MMI) waveguide structure 30 is connected with arrayed waveguide grating waveguide structure 40 (this arrayed waveguide grating waveguide structure 40 is prior art, its structure is not detailed here describe).

[0019] The material for making the waveguide device is silicon dioxide, silicon germanium or other ...

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Abstract

This invention relates to an adjustable output wave closed-packed WDM system integrated device including an input waveguide and a Y branch waveguide structure connected to it, an electric heating film is produced on a branch arm of the y. When the film is turned on, the phase of a light signal in the waveguide under it can be changed and a lead can be led out on the film, the other end of the y is connected with multimode interferometer waveguide structure connected with an array waveguide grating structure.

Description

technical field [0001] The invention mainly relates to an optical waveguide integrated device, in particular to an optical waveguide integrated device supporting an output waveform adjustable dense wavelength division multiplexing system. Background technique [0002] For the existing arrayed waveguide grating (AWG) type dense wavelength division multiplexing (DWDM) system, its system response curve usually has two forms: Gaussian response and top flattened response. The Gaussian response is characterized by low system insertion loss and small crosstalk between channels, but the system tolerance rate is low, and the bit error rate is high when the wavelength of the input signal is unstable. The characteristic of the top flattened response is that the system tolerance rate is high, which increases the stability of the system, but the disadvantage is that the system insertion loss is relatively large. Although there are many compromises to improve the performance of the two r...

Claims

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Application Information

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IPC IPC(8): G02B6/10G02B6/24H04J14/02
Inventor 李健胡雄伟王红杰安俊明
Owner INST OF SEMICONDUCTORS - CHINESE ACAD OF SCI
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