A Design of All-Optical Integrated Linearized Modulator Based on Asymmetric Mach-Zehnder Modulator

被引：3

作者：

Zhao, Yiru ^{[1
,2
]}

Li, Jinye ^{[1
]}

Xiang, Zichuan ^{[1
,2
]}

Liu, Jianguo ^{[1
,2
]}

机构：

[1] Chinese Acad Sci, Inst Semicond, State Key Lab Integrated Optoelect, Beijing 100083, Peoples R China

[2] Univ Chinese Acad Sci, Coll Mat Sci & Optoelect Technol, Beijing 100049, Peoples R China

来源：

PHOTONICS | 2023年 / 10卷 / 03期

基金：

中国国家自然科学基金;

关键词：

linearity; integrated modulator; asymmetric Mach-Zehnder interferometer; SILICON;

D O I：

10.3390/photonics10030229

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We proposed an all-optical linearized modulator model suitable for an integration platform. The linearized modulator is formed by an asymmetric Mach-Zehnder modulator and a carrier-separated waveguide. We focus on the suppression of both intermodulation distortion (IMD3) and second-order harmonic distortions (SHD). As a result, the third-order nonlinear terms of IMD3 and second-order nonlinear terms of SHD are entirely suppressed, leading to a spurious free dynamic range of IMD3 (SFDRIMD3) improvement of similar to 14 dB and SFDRSHD improvement of similar to 3 dB compared with a standard MZM model. The influence of large RF input signals, losses, and fabrication deviations are also discussed to prove the feasibility of the model.

引用

页数：15

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