High-Performance Thin-Film Lithium Niobate Heterogeneous Integrated Photodetector Array

被引：0

作者：

Xu, Xuhui ^{[1
,2
]}

Wei, Chao ^{[1
,2
]}

Wang, Chenghao ^{[1
,2
]}

Chen, Yake ^{[1
,2
]}

Chen, Tengmu ^{[1
,2
]}

Peng, Shiyong ^{[1
,2
]}

Zou, Xihua ^{[1
,2
]}

Pan, Wei ^{[1
,2
]}

Xie, Xiaojun ^{[1
,2
]}

Yan, Lianshan ^{[1
,2
]}

机构：

[1] Southwest Jiaotong Univ, Minist Educ, Key Lab Optoelect Fus Integrat & Commun Sensing, Chengdu 611756, Sichuan, Peoples R China

[2] Southwest Jiaotong Univ, Sch Informat Sci & Technol, Chengdu 611756, Sichuan, Peoples R China

来源：

LASER & OPTOELECTRONICS PROGRESS | 2025年 / 62卷 / 09期

关键词：

photodetector; photodetector array; thin-film lithium niobate; heterogeneous integration;

D O I：

10.3788/LOP250616

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

The design and fabrication of a InP/InGaAs modified uni-traveling carrier photodetector array heterogeneously integrated on the thin-film lithium niobate platform was proposed and fabricated. The 1 x N multimode interferometers were employed to ensure uniform distribution of input optical power to each photodetector unit. Experimental results demonstrate that the 1 x 2, 1 x 3, and 1 x 4 photodetector arrays achieve 3 dB bandwidths of 50 GHz, 45 GHz, and 40 GHz, respectively. The device was applied in an intensity modulation direct detection system, successfully achieving high-quality reception of 60 Gbaud and 100 Gbaud four-level pulse amplitude modulation signals.

引用

页数：4

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