Experimental Demonstration of the Distributed Feedback Semiconductor Laser With S-Bent Waveguide and Sampled Grating
A distributed feedback (DFB) semiconductor laser based on s-bent waveguide and sampled grating is theoretically studied and experimentally demonstrated. The proposed laser operates with a high side mode suppression ratio (SMSR) when the bias current is changed from 50 to 130 mA. When the...
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IEEE
2017-01-01
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| Series: | IEEE Photonics Journal |
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| Online Access: | https://ieeexplore.ieee.org/document/8031958/ |
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| author | Yunshan Zhang Yuechun Shi Lianyan Li Zhengpeng Zou Jun Lu Yinchao Du Wenxuan Wang Yating Zhou Xin Chen Jilin Zheng Xiangfei Chen |
| author_facet | Yunshan Zhang Yuechun Shi Lianyan Li Zhengpeng Zou Jun Lu Yinchao Du Wenxuan Wang Yating Zhou Xin Chen Jilin Zheng Xiangfei Chen |
| author_sort | Yunshan Zhang |
| collection | DOAJ |
| description | A distributed feedback (DFB) semiconductor laser based on s-bent waveguide and sampled grating is theoretically studied and experimentally demonstrated. The proposed laser operates with a high side mode suppression ratio (SMSR) when the bias current is changed from 50 to 130 mA. When the bias current is fixed at 130 mA, the SMSR is larger than 55 dB, which is benefit from the suppressed spatial hole burning, while the SMSR of the equivalent phase shifted DFB laser decreases to 39 dB. The wavelength spacing error between two proposed DFB lasers is measured to be 0.089 nm compared with the designed value. When temperature is increased from 20 °C to 42 °C, the presented DFB laser achieves stable single longitudinal mode (SLM) operation with SMSR >51 dB and the wavelength varies from 1562.24 to 1564.6 nm with a slope of 0.11 nm/°C. The s-bent waveguide and sampled grating can be fabricated simply by the common holography exposure and photolithograph technique resulting in a low cost. Besides, the wavelength accuracy and SLM yield can be improved significantly, which is very beneficial for the multiwavelength DFB laser array. |
| format | Article |
| id | doaj-art-745a92e2c4c84b0cb7faa145afc615a6 |
| institution | DOAJ |
| issn | 1943-0655 |
| language | English |
| publishDate | 2017-01-01 |
| publisher | IEEE |
| record_format | Article |
| series | IEEE Photonics Journal |
| spelling | doaj-art-745a92e2c4c84b0cb7faa145afc615a62025-08-20T03:15:14ZengIEEEIEEE Photonics Journal1943-06552017-01-019511110.1109/JPHOT.2017.27515738031958Experimental Demonstration of the Distributed Feedback Semiconductor Laser With S-Bent Waveguide and Sampled GratingYunshan Zhang0Yuechun Shi1Lianyan Li2Zhengpeng Zou3Jun Lu4Yinchao Du5Wenxuan Wang6Yating Zhou7Xin Chen8Jilin Zheng9Xiangfei Chen10Suzhou High-Tech Institute, Nanjing University, Suzhou, ChinaMicrowave-Photonics Technology Laboratory, National Laboratory of Microstructures, and the School of Engineering and Applied Sciences, Nanjing University, Nanjing, ChinaSchool of Optoelectronic Engineering, Nanjing University of Posts and Telecommunications, Nanjing, ChinaMicrowave-Photonics Technology Laboratory, National Laboratory of Microstructures, and the School of Engineering and Applied Sciences, Nanjing University, Nanjing, ChinaMicrowave-Photonics Technology Laboratory, National Laboratory of Microstructures, and the School of Engineering and Applied Sciences, Nanjing University, Nanjing, ChinaMicrowave-Photonics Technology Laboratory, National Laboratory of Microstructures, and the School of Engineering and Applied Sciences, Nanjing University, Nanjing, ChinaMicrowave-Photonics Technology Laboratory, National Laboratory of Microstructures, and the School of Engineering and Applied Sciences, Nanjing University, Nanjing, ChinaSchool of Mathematics and Physics and Chemical Engineering, Changzhou Institute of Technology, Changzhou, ChinaHuagong Genuine Optics Co., Ltd., Wuhan, ChinaPhotonics Information Technology Laboratory, Institute of Communication Engineering, PLA University of Science and Technology, Nanjing, ChinaMicrowave-Photonics Technology Laboratory, National Laboratory of Microstructures, and the School of Engineering and Applied Sciences, Nanjing University, Nanjing, ChinaA distributed feedback (DFB) semiconductor laser based on s-bent waveguide and sampled grating is theoretically studied and experimentally demonstrated. The proposed laser operates with a high side mode suppression ratio (SMSR) when the bias current is changed from 50 to 130 mA. When the bias current is fixed at 130 mA, the SMSR is larger than 55 dB, which is benefit from the suppressed spatial hole burning, while the SMSR of the equivalent phase shifted DFB laser decreases to 39 dB. The wavelength spacing error between two proposed DFB lasers is measured to be 0.089 nm compared with the designed value. When temperature is increased from 20 °C to 42 °C, the presented DFB laser achieves stable single longitudinal mode (SLM) operation with SMSR >51 dB and the wavelength varies from 1562.24 to 1564.6 nm with a slope of 0.11 nm/°C. The s-bent waveguide and sampled grating can be fabricated simply by the common holography exposure and photolithograph technique resulting in a low cost. Besides, the wavelength accuracy and SLM yield can be improved significantly, which is very beneficial for the multiwavelength DFB laser array.https://ieeexplore.ieee.org/document/8031958/DFB semiconductor lasersampled gratings-bent waveguide. |
| spellingShingle | Yunshan Zhang Yuechun Shi Lianyan Li Zhengpeng Zou Jun Lu Yinchao Du Wenxuan Wang Yating Zhou Xin Chen Jilin Zheng Xiangfei Chen Experimental Demonstration of the Distributed Feedback Semiconductor Laser With S-Bent Waveguide and Sampled Grating IEEE Photonics Journal DFB semiconductor laser sampled grating s-bent waveguide. |
| title | Experimental Demonstration of the Distributed Feedback Semiconductor Laser With S-Bent Waveguide and Sampled Grating |
| title_full | Experimental Demonstration of the Distributed Feedback Semiconductor Laser With S-Bent Waveguide and Sampled Grating |
| title_fullStr | Experimental Demonstration of the Distributed Feedback Semiconductor Laser With S-Bent Waveguide and Sampled Grating |
| title_full_unstemmed | Experimental Demonstration of the Distributed Feedback Semiconductor Laser With S-Bent Waveguide and Sampled Grating |
| title_short | Experimental Demonstration of the Distributed Feedback Semiconductor Laser With S-Bent Waveguide and Sampled Grating |
| title_sort | experimental demonstration of the distributed feedback semiconductor laser with s bent waveguide and sampled grating |
| topic | DFB semiconductor laser sampled grating s-bent waveguide. |
| url | https://ieeexplore.ieee.org/document/8031958/ |
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