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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| Format: | Article |
| Language: | English |
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MDPI AG
2020-12-01
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| Series: | Applied Sciences |
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| Online Access: | https://www.mdpi.com/2076-3417/11/1/221 |
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| author | Qichao Wang Jian Wang Changzheng Sun Bing Xiong Yi Luo Zhibiao Hao Yanjun Han Lai Wang Hongtao Li Jiadong Yu |
| 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 |
| collection | DOAJ |
| 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. |
| first_indexed | 2024-03-10T13:42:48Z |
| format | Article |
| id | doaj.art-92fef999c18c42f58832532914e6900e |
| institution | Directory Open Access Journal |
| issn | 2076-3417 |
| language | English |
| last_indexed | 2024-03-10T13:42:48Z |
| publishDate | 2020-12-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Applied Sciences |
| spelling | doaj.art-92fef999c18c42f58832532914e6900e2023-11-21T02:53:04ZengMDPI AGApplied Sciences2076-34172020-12-0111122110.3390/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 |
| 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 |
| title | 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_short | 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 |
| 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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