Multilayer dielectric waveguide modulator design

A technology of waveguide modulator and multi-layer medium, which is applied in the field of optical communication and can solve problems such as rate mismatch and limited bandwidth

Inactive Publication Date: 2011-02-23
UNIV OF ELECTRONIC SCI & TECH OF CHINA
View PDF0 Cites 3 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Currently widely used is based on LiNbO 3 Modulator made of crystalline material, LiNbO 3 The dielectric constant of such organic materials is relatively large, and there is an inherent rate mismatch between the microwave and optical wave bands in the inorganic waveguide, which limits the bandwidth.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Multilayer dielectric waveguide modulator design
  • Multilayer dielectric waveguide modulator design

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0014] A design based on a multilayer dielectric waveguide modulator proposed by the present invention, its structure is as follows figure 1 shown. The material of the upper cladding layer 2 is usually UFC-170, the material of the intermediate core layer is usually CLD-1 / APC, the size of the ridge is adjusted to make the waveguide work under single-mode conditions, the material of the lower cladding layer 4 is usually UV-15, and the substrate is generally made of SiO2, the electrode material generally uses Au. When there is no rate compensation layer, according to the electrode simulation results, the characteristic impedance can reach a range close to 50 ohms, but the equivalent refractive index of the microwave is far smaller than the effective refractive index of the light wave, which means that the impedance matching can be achieved, but not yet. The target for rate matching. In order to achieve rate and impedance matching at the same time, the microstrip electrode is im...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention discloses a multilayer dielectric waveguide modulator design, belongs to the technical field of optical communication, and relates to integrated optics and the technology of optical waveguides. In the design, a ridge type optical waveguide structure is designed by utilizing an organic polymer with a lower dielectric constant and a higher electro-optical coefficient, which meets single-mode transmission conductions. In the design, a novel structure of a multilayer dielectric waveguide is formed by adding a dielectric layer above the electrode of a conventional polymer modulator by a Wheeler transformation method; and the simultaneous matching of rate and impedance is realized by modulating by using a microstrip electrode.

Description

technical field [0001] The multi-layer dielectric waveguide modulator design belongs to the field of optical communication technology and involves integrated optics and optical waveguide technology. Background technique [0002] Polymer electro-optic modulators are characterized by high modulation rate, high modulation frequency, low driving voltage and low price. Although they have not been used in large-scale commercial applications, their potential applications are very wide. With the rapid development of Internet technology, people have higher and higher requirements for the bandwidth of the communication network, especially the requirement to be able to transmit multimedia services in real time has increased the pressure on network communication bandwidth, such as desktop video conferencing, belts suitable for business and teaching purposes. Multimedia services requiring images are forming exponentially increasing requirements for long-distance communication network ban...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): G02B6/122G02F1/035
Inventor张晓霞黄春阳刘宏明文玥朱燕沈杰
OwnerUNIV OF ELECTRONIC SCI & TECH OF CHINA