Method for modulating multipath light simultaneously using waveguide resonance mode and modulator

A guided wave resonance and modulator technology, applied in optics, instruments, nonlinear optics, etc., can solve the problems of integrating multiple M-Zs, integration difficulties, multi-channel integration M-Z modulators, etc., to achieve convenient material processing and low cost Low cost and low insertion loss

Inactive Publication Date: 2005-05-25
SHANGHAI JIAOTONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although this two-channel Mach-Zehnder modulator can be used, its integration presents significant difficulties
In particular, it is even more difficult to integrate multiple M-Z modulators on the same chip. Each M-Z structure requires 4-5 layers of combinations, and vertical integration of two M-Z structures requires 8-10 layers. Therefore, integrating multiple M-Zs on the same chip is practical. is very difficult

Method used

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  • Method for modulating multipath light simultaneously using waveguide resonance mode and modulator
  • Method for modulating multipath light simultaneously using waveguide resonance mode and modulator

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] Simultaneous modulation of two channels of light is achieved using different guided wave resonance modes (TM1 and TM2) of the same wavelength (832nm):

[0026] Step 1: The material of the prism 1 is an equilateral triangular prism with high refractive index (ZF6, n=1.7355). The material of the upper metal film 2 is silver (ε=-30.0+i15), which is plated on the bottom surface of the prism 1 by sputtering method, with a thickness of 45.0 nm. The electro-optic polymer film 3 is made of cross-linked organic material with a refractive index of 1.680 and a thickness of 3.0 μm. Then, near the glass transition temperature (160°C) of the electro-optic polymer 3 material, a very high electric field (3800V) is applied on the metal needle tip vertically above the polymer surface to discharge the air. Then the polar molecules inside the polymer will be neatly arranged under the action of the electric field. Then keep the electric field, and slowly lower to room temperature. At thi...

Embodiment 2

[0029] Simultaneous modulation of two channels of light using the same guided wave resonance mode (TM1) at different wavelengths (832nm and 980nm):

[0030] Step 1: The material of the prism 1 is an equilateral triangular prism with high refractive index (ZF7, n=1.7837). The material of the upper metal film 2 is silver (ε=-30.0+i1.5), which is plated on the bottom surface of the prism 1 by sputtering method, with a thickness of 55.0 nm. The electro-optic polymer film 3 is made of cross-linked organic material with a refractive index of 1.680 and a thickness of 3.5 μm. Then, near the glass transition temperature (160°C) of the electro-optic polymer 3 material, a very high electric field (4000V) is applied on the metal needle tip vertically above the polymer surface to discharge the air. Then the polar molecules inside the polymer will be neatly arranged under the action of the electric field. Then keep the electric field, and slowly lower to room temperature. At this time, t...

Embodiment 3

[0033] Using different guided wave resonance modes of different wavelengths - TM1 at 832nm and TE2 at 980nm to achieve simultaneous modulation of two channels of light:

[0034] Step 1: The material of the prism 1 is an equilateral triangular prism with high refractive index (n=1.900). The material of the upper metal film 2 is silver (ε=-30.0+i1.5), which is plated on the bottom surface of the prism 1 by sputtering method, with a thickness of 60.0 nm. The electro-optic polymer film 3 is made of cross-linked organic material with a refractive index of 1.680 and a thickness of 4.0 μm. Then, near the glass transition temperature (160°C) of the electro-optic polymer 3 material, a very high electric field (4300V) is applied on the metal needle tip vertically above the polymer surface to discharge the air. Then the polar molecules inside the polymer will be neatly arranged under the action of the electric field. Then keep the electric field, and slowly lower to room temperature. ...

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Abstract

The present invention belongs to the field of optoelectronic communication and optical information treatment. In the modulator, upper metal film, photoelectric polymer film, isolating layer and lower metal film are plated successively onto the lower surface of the prism; the upper and the lower metal film and the photoelectric polymer film constitute double-sided metal coated waveguide structure; the prism, the upper metal film and the photoelectric polymer film constitute the attenuating total-reflection structure; and the excited guide wave propagates inside the photoelectric polymer film. The modulation method includes constituting the said modulator, using semiconductor laser as laser light source, producing guide wave resonance mode, looking for corresponding sync angle to make theincident angle of laser beam to the bottom of the prism equal to the sync angle, and receiving reflected laser beam with detector to realize multiplex light modulation.

Description

technical field [0001] The invention relates to a method and device for simultaneously modulating multi-path light, in particular to a method and a modulator for simultaneously modulating multi-path light by using a guided wave resonance mode, belonging to the field of optoelectronic communication and optical information processing. Background technique [0002] In the past two decades, with the rapid development of organic electro-optic materials, the development of organic electro-optic modulators has made great progress. Moreover, multi-channel polymer electro-optic modulators have also been reported. At present, there are two forms that can realize multi-channel polymer electro-optic modulation: waveguide transmission type Mach-Zender (M-Z) structure and attenuated total reflection device structure. Electro-optic modulators of the Mach-Zehnder interference type or their improved structures are the mainstream of optical modulators in the world today. Its advantage is tha...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G02F1/00G02F1/377H04B10/00
Inventor 杨艳芳曹庄琪张水英沈启舜
Owner SHANGHAI JIAOTONG UNIV
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