Mach-Zehnder light intensity modulator with annulet in non-equilibrium coupled structure

A technology of optical intensity modulator and coupling structure, which is applied in the direction of nonlinear optics, optical waveguide coupling, optics, etc., can solve the problems of inherent modulation depth decrease and signal transmission efficiency decrease, and achieve the effect of high-efficiency transmission and simple process

Inactive Publication Date: 2006-02-01
ZHEJIANG UNIV
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  • Summary
  • Abstract
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Problems solved by technology

The analysis shows that the loss leads to a decrease in the intrinsic modulation depth of the modulation curve...

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  • Mach-Zehnder light intensity modulator with annulet in non-equilibrium coupled structure
  • Mach-Zehnder light intensity modulator with annulet in non-equilibrium coupled structure
  • Mach-Zehnder light intensity modulator with annulet in non-equilibrium coupled structure

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Embodiment Construction

[0014] Such as figure 1 As shown, the present invention includes an optical microring 1 of arbitrary closed-loop shape, a beam splitting coupling structure 2 of a Mach-Zehnder interference structure, a beam combining interference structure 3 of a Mach-Zehnder interference structure, and two interference structures of a Mach-Zehnder interference structure Arms 4, 5, input waveguide 6 and output waveguide 7. One end of the two interference arms 4 and 5 is connected to one end of the beam splitting coupling structure 2 of the Mach-Zehnder interference structure, one end of the beam splitting coupling structure 2) of the Mach-Zehnder interference structure is connected to the input waveguide 6, and the two interference arms 4 The other end of , 5 is connected to one end of the beam-combining interference structure 3 of the Mach-Zehnder interference structure, the other end of the beam-combining interference structure 3 of the Mach-Zehnder interference structure is connected to the...

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Abstract

A Mach ¿C Zehnder light intensity modulator with microring in non ¿C balance coupling type is prepared as connecting one end of two interference arms to one end of beam splitting couple structure with its one end being connected to input waveguide and another end of two said arms to one end of beam combining interference structure with its another end being connected to output waveguide; setting light microring on one side of any interference arm ; applying Y branch, X node, directional coupler or multimode interference coupler on two said structures separately .

Description

technical field [0001] The invention relates to optical components, in particular to a Mach-Zehnder light intensity modulator with a microring using an unbalanced coupling structure. Background technique [0002] As an external modulation method of optical signals, optical modulator is one of the important devices in optical communication technology. People have successfully developed various optical modulators by using various effects of various materials. In recent years, due to the need for direct modulation transmission of analog signals, there has been a specific demand for optical intensity modulators with highly linear modulation characteristics. As the basic optical intensity modulator structure, the Mach-Zehnder interference structure is the most commonly used optical intensity modulator structure, but because its modulation characteristic curve is a typical sinusoidal curve, it cannot meet the requirements of highly linear analog signal modulation. requirements. ...

Claims

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Application Information

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IPC IPC(8): G02F1/225G02B6/26
Inventor 杨建义王帆江晓清王明华
Owner ZHEJIANG UNIV
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