Demonstration of a directly modulated laser achieving bandwidth exceeding 50 GHz with an integrated active feedback waveguide

被引：0

作者：

Ban, Dechao ^{[1
]}

Chen, Jia ^{[1
,2
]}

Jin, Ya ^{[1
]}

Zhang, Renheng ^{[1
,2
]}

Cao, Keqi ^{[1
,2
]}

Wang, Jian ^{[1
,2
]}

Chen, Bei ^{[1
]}

Liu, Yu ^{[1
]}

Bai, Jinhua ^{[1
]}

Fu, Mengbo ^{[3
]}

Li, Ming ^{[1
]}

Zhu, Ninghua ^{[1
,4
]}

机构：

[1] Chinese Acad Sci, Inst Semicond, Key Lab Optoelect Mat & Devices, Beijing 100083, Peoples R China

[2] Univ Chinese Acad Sci, Ctr Mat Sci & Optoelect Engn, Beijing 100083, Peoples R China

[3] Chinese Acad Sci, Xiongan Inst Innovat, Commun & Integrated Photon Lab, Xiongan 071899, Peoples R China

[4] Nankai Univ, Inst Intelligent Photon, Tianjin 300071, Peoples R China

来源：

PHOTONICS RESEARCH | 2024年 / 12卷 / 12期

关键词：

NOISE;

D O I：

10.1364/PRJ.529799

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

With the significant expansion of communication capacity in fiber-optic networks, the directly modulated laser serves as a viable candidate due to its low cost and small footprint. In recent years, distributed feedback (DFB) lasers with an integrated passive feedback waveguide were demonstrated to enhance bandwidth by introducing a photon-photon resonance or detuned-loading effect. However, the butt-joint regrowth process between the active layer and passive waveguide complicates the fabrication. Here we propose and demonstrate a DFB laser with an integrated active feedback waveguide, utilizing identical active layer technology to simplify the fabrication process, achieving a bandwidth of exceeding 50 GHz. Additionally, transmission experiments with 55 Gbps NRZ and 70 Gbps PAM4 signals are also demonstrated. (c) 2024 Chinese Laser Press

引用

页码：2855 / 2862

页数：8

共 22 条

[21] High-Power Long-Waveguide 1300-nm Directly Modulated DFB Laser for 45-Gb/s NRZ and 50-Gb/s PAM4
Chen, Rih-You
Chen, Yang-Jeng
Chen, Cong-Long
Wei, Chia-Chien
Lin, Wei
Chiu, Yi-Jen
2019 IEEE PHOTONICS CONFERENCE (IPC), 2019,
[22] Photonics-Based 300 GHz Band Wireless Terahertz Link using 10Gbps Directly-Modulated Monolithically-Integrated Novel Dual-Mode Laser as Beating Light Source
Kim, Younghoon
Park, Dong Woo
Cho, Jinchul
Lee, Eui Su
Choi, Da-Hye
Shin, Jun-Hwan
Kim, Mugeon
Cho, Seung-Hyun
Moon, Sang-Rok
Kim, Eon-Sang
Baek, Yongsoon
Lee, Donghoon
Park, Sang-Ho
Leem, Young Ahn
Lee, Il-Min
Park, Kyung Hyun
2022 OPTICAL FIBER COMMUNICATIONS CONFERENCE AND EXHIBITION (OFC), 2022,

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