A Directly Modulated Laterally Coupled Distributed Feedback Laser Array Based on SiO<sub>2</sub> Planarization Process

A Directly Modulated Laterally Coupled Distributed Feedback Laser Array Based on SiO<sub>2</sub> Planarization Process

Low-cost and high-speed single-mode semiconductor lasers are increasingly required as wide-band access fiber communication expands in recent years. Here, a high-speed laterally coupled distributed feedback (LC-DFB) laser array is achieved based on a SiO<sub>2</sub> planarization process....

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Main Authors: Qichao Wang, Jian Wang, Changzheng Sun, Bing Xiong, Yi Luo, Zhibiao Hao, Yanjun Han, Lai Wang, Hongtao Li, Jiadong Yu
Format: Article
Language:English
Published: MDPI AG 2021-12-01
Series:Applied Sciences
Subjects:
laterally coupled gratings
high-speed modulation
SiO<sub>2</sub> Planarization
1.3 μm
distributed feedback laser
Online Access:https://www.mdpi.com/2076-3417/11/1/221
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record_format Article
spelling doaj-92fef999c18c42f58832532914e6900e2020-12-30T00:00:04ZengMDPI AGApplied Sciences2076-34172021-12-011122122110.3390/app11010221A Directly Modulated Laterally Coupled Distributed Feedback Laser Array Based on SiO<sub>2</sub> Planarization ProcessQichao Wang0Jian Wang1Changzheng Sun2Bing Xiong3Yi Luo4Zhibiao Hao5Yanjun Han6Lai Wang7Hongtao Li8Jiadong Yu9Beijing National Research Centre for Information Science and Technology, Department of Electronic Engineering, Tsinghua University, Beijing 100084, ChinaBeijing National Research Centre for Information Science and Technology, Department of Electronic Engineering, Tsinghua University, Beijing 100084, ChinaBeijing National Research Centre for Information Science and Technology, Department of Electronic Engineering, Tsinghua University, Beijing 100084, ChinaBeijing National Research Centre for Information Science and Technology, Department of Electronic Engineering, Tsinghua University, Beijing 100084, ChinaBeijing National Research Centre for Information Science and Technology, Department of Electronic Engineering, Tsinghua University, Beijing 100084, ChinaBeijing National Research Centre for Information Science and Technology, Department of Electronic Engineering, Tsinghua University, Beijing 100084, ChinaBeijing National Research Centre for Information Science and Technology, Department of Electronic Engineering, Tsinghua University, Beijing 100084, ChinaBeijing National Research Centre for Information Science and Technology, Department of Electronic Engineering, Tsinghua University, Beijing 100084, ChinaBeijing National Research Centre for Information Science and Technology, Department of Electronic Engineering, Tsinghua University, Beijing 100084, ChinaBeijing National Research Centre for Information Science and Technology, Department of Electronic Engineering, Tsinghua University, Beijing 100084, ChinaLow-cost and high-speed single-mode semiconductor lasers are increasingly required as wide-band access fiber communication expands in recent years. Here, a high-speed laterally coupled distributed feedback (LC-DFB) laser array is achieved based on a SiO<sub>2</sub> planarization process. The device exhibits low threshold currents of about 12 mA and high slope efficiencies over 0.26 W/A. Stable single mode operation and high-speed performance are realized with side mode suppression ratios (SMSR) over 45 dB, and 3-dBe bandwidths exceed 14 GHz for all four channels. Such a high-speed and process simple LC-DFB laser array shows great potential to the low-cost fiber communication networks.https://www.mdpi.com/2076-3417/11/1/221laterally coupled gratingshigh-speed modulationSiO<sub>2</sub> Planarization1.3 μmdistributed feedback laser
collection DOAJ
language English
format Article
sources DOAJ
author Qichao Wang
Jian Wang
Changzheng Sun
Bing Xiong
Yi Luo
Zhibiao Hao
Yanjun Han
Lai Wang
Hongtao Li
Jiadong Yu
spellingShingle Qichao Wang
Jian Wang
Changzheng Sun
Bing Xiong
Yi Luo
Zhibiao Hao
Yanjun Han
Lai Wang
Hongtao Li
Jiadong Yu
A Directly Modulated Laterally Coupled Distributed Feedback Laser Array Based on SiO<sub>2</sub> Planarization Process
Applied Sciences
laterally coupled gratings
high-speed modulation
SiO<sub>2</sub> Planarization
1.3 μm
distributed feedback laser
author_facet Qichao Wang
Jian Wang
Changzheng Sun
Bing Xiong
Yi Luo
Zhibiao Hao
Yanjun Han
Lai Wang
Hongtao Li
Jiadong Yu
author_sort Qichao Wang
title A Directly Modulated Laterally Coupled Distributed Feedback Laser Array Based on SiO<sub>2</sub> Planarization Process
title_short A Directly Modulated Laterally Coupled Distributed Feedback Laser Array Based on SiO<sub>2</sub> Planarization Process
title_full A Directly Modulated Laterally Coupled Distributed Feedback Laser Array Based on SiO<sub>2</sub> Planarization Process
title_fullStr A Directly Modulated Laterally Coupled Distributed Feedback Laser Array Based on SiO<sub>2</sub> Planarization Process
title_full_unstemmed A Directly Modulated Laterally Coupled Distributed Feedback Laser Array Based on SiO<sub>2</sub> Planarization Process
title_sort directly modulated laterally coupled distributed feedback laser array based on sio<sub>2</sub> planarization process
publisher MDPI AG
series Applied Sciences
issn 2076-3417
publishDate 2021-12-01
description Low-cost and high-speed single-mode semiconductor lasers are increasingly required as wide-band access fiber communication expands in recent years. Here, a high-speed laterally coupled distributed feedback (LC-DFB) laser array is achieved based on a SiO<sub>2</sub> planarization process. The device exhibits low threshold currents of about 12 mA and high slope efficiencies over 0.26 W/A. Stable single mode operation and high-speed performance are realized with side mode suppression ratios (SMSR) over 45 dB, and 3-dBe bandwidths exceed 14 GHz for all four channels. Such a high-speed and process simple LC-DFB laser array shows great potential to the low-cost fiber communication networks.
topic laterally coupled gratings
high-speed modulation
SiO<sub>2</sub> Planarization
1.3 μm
distributed feedback laser
url https://www.mdpi.com/2076-3417/11/1/221
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