Single longitudinal mode narrow linewidth thulium-doped fiber laser based on an eye-shaped dual-ring filter
A single-longitudinal-mode (SLM) thulium-doped fiber laser, based on an eye-shaped passive dual-ring filter, is designed and constructed. The eye-shaped passive compound cavity consisting of four couplers is used to increase the longitudinal mode spacing, and its performance is numerically analyzed...
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| Format: | Article |
| Language: | English |
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Frontiers Media S.A.
2023-05-01
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| Series: | Frontiers in Physics |
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| Online Access: | https://www.frontiersin.org/articles/10.3389/fphy.2023.1188608/full |
| _version_ | 1797815075834167296 |
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| author | Xiangdong Wang Fengping Yan Hao Guo Wei Wang Qi Qin Dandan Yang Pengfei Wang Ting Li Chenhao Yu Biao Guan Kazuo Kumamoto Yuping Suo Yan Bai |
| author_facet | Xiangdong Wang Fengping Yan Hao Guo Wei Wang Qi Qin Dandan Yang Pengfei Wang Ting Li Chenhao Yu Biao Guan Kazuo Kumamoto Yuping Suo Yan Bai |
| author_sort | Xiangdong Wang |
| collection | DOAJ |
| description | A single-longitudinal-mode (SLM) thulium-doped fiber laser, based on an eye-shaped passive dual-ring filter, is designed and constructed. The eye-shaped passive compound cavity consisting of four couplers is used to increase the longitudinal mode spacing, and its performance is numerically analyzed in detail. A homemade uniform fiber Bragg grating serves as a wavelength selection device and a saturable absorber is used to further suppress the intense longitudinal mode competition in the laser cavity, ensuring the single-longitudinal-mode output. The experimental results demonstrate a laser output with a center wavelength of 2,049.85 nm and an optical signal-to-noise ratio of 63 dB. Moreover, the power fluctuation is less than 0.6 dB, and the center wavelength fluctuation is less than 0.03 nm over a continuous measurement period of 60 min, demonstrating an excellent stability. The laser linewidth is measured using an unbalanced Michelson interferometer and β-separation line method, resulting in a linewidth of 11.22 kHz. |
| first_indexed | 2024-03-13T08:17:19Z |
| format | Article |
| id | doaj.art-0d9027956e1c4024b33ccd331c8dd11b |
| institution | Directory Open Access Journal |
| issn | 2296-424X |
| language | English |
| last_indexed | 2024-03-13T08:17:19Z |
| publishDate | 2023-05-01 |
| publisher | Frontiers Media S.A. |
| record_format | Article |
| series | Frontiers in Physics |
| spelling | doaj.art-0d9027956e1c4024b33ccd331c8dd11b2023-05-31T14:48:45ZengFrontiers Media S.A.Frontiers in Physics2296-424X2023-05-011110.3389/fphy.2023.11886081188608Single longitudinal mode narrow linewidth thulium-doped fiber laser based on an eye-shaped dual-ring filterXiangdong Wang0Fengping Yan1Hao Guo2Wei Wang3Qi Qin4Dandan Yang5Pengfei Wang6Ting Li7Chenhao Yu8Biao Guan9Kazuo Kumamoto10Yuping Suo11Yan Bai12School of Electronic and Information Engineering, Beijing Jiaotong University, Beijing, ChinaSchool of Electronic and Information Engineering, Beijing Jiaotong University, Beijing, ChinaSchool of Electronic and Information Engineering, Beijing Jiaotong University, Beijing, ChinaKey Laboratory of Luminescence and Optical Information, Ministry of Education, School of Physical Science and Engineering, Institute of Optical Information, Beijing Jiaotong University, Beijing, ChinaSchool of Electronic and Information Engineering, Beijing Jiaotong University, Beijing, ChinaSchool of Electronic and Information Engineering, Beijing Jiaotong University, Beijing, ChinaSchool of Electronic and Information Engineering, Beijing Jiaotong University, Beijing, ChinaSchool of Electronic and Information Engineering, Beijing Jiaotong University, Beijing, ChinaSchool of Electronic and Information Engineering, Beijing Jiaotong University, Beijing, ChinaSchool of Electronic and Information Engineering, Beijing Jiaotong University, Beijing, ChinaDepartment of Electronics, Information, and Communication Engineering, Osaka Institute of Technology, Osaka, JapanDepartment of Gynecology and Obstetrics, The Fifth Clinical Medical College of Shanxi Medical University, Taiyuan, ChinaCollege of Electrical Engineering, Hebei University of Architecture, Zhangjiakou, Hebei, ChinaA single-longitudinal-mode (SLM) thulium-doped fiber laser, based on an eye-shaped passive dual-ring filter, is designed and constructed. The eye-shaped passive compound cavity consisting of four couplers is used to increase the longitudinal mode spacing, and its performance is numerically analyzed in detail. A homemade uniform fiber Bragg grating serves as a wavelength selection device and a saturable absorber is used to further suppress the intense longitudinal mode competition in the laser cavity, ensuring the single-longitudinal-mode output. The experimental results demonstrate a laser output with a center wavelength of 2,049.85 nm and an optical signal-to-noise ratio of 63 dB. Moreover, the power fluctuation is less than 0.6 dB, and the center wavelength fluctuation is less than 0.03 nm over a continuous measurement period of 60 min, demonstrating an excellent stability. The laser linewidth is measured using an unbalanced Michelson interferometer and β-separation line method, resulting in a linewidth of 11.22 kHz.https://www.frontiersin.org/articles/10.3389/fphy.2023.1188608/fullsingle longitudinal modethulium-doped fiber laserhigh powernarrow linewidth2 μm |
| spellingShingle | Xiangdong Wang Fengping Yan Hao Guo Wei Wang Qi Qin Dandan Yang Pengfei Wang Ting Li Chenhao Yu Biao Guan Kazuo Kumamoto Yuping Suo Yan Bai Single longitudinal mode narrow linewidth thulium-doped fiber laser based on an eye-shaped dual-ring filter Frontiers in Physics single longitudinal mode thulium-doped fiber laser high power narrow linewidth 2 μm |
| title | Single longitudinal mode narrow linewidth thulium-doped fiber laser based on an eye-shaped dual-ring filter |
| title_full | Single longitudinal mode narrow linewidth thulium-doped fiber laser based on an eye-shaped dual-ring filter |
| title_fullStr | Single longitudinal mode narrow linewidth thulium-doped fiber laser based on an eye-shaped dual-ring filter |
| title_full_unstemmed | Single longitudinal mode narrow linewidth thulium-doped fiber laser based on an eye-shaped dual-ring filter |
| title_short | Single longitudinal mode narrow linewidth thulium-doped fiber laser based on an eye-shaped dual-ring filter |
| title_sort | single longitudinal mode narrow linewidth thulium doped fiber laser based on an eye shaped dual ring filter |
| topic | single longitudinal mode thulium-doped fiber laser high power narrow linewidth 2 μm |
| url | https://www.frontiersin.org/articles/10.3389/fphy.2023.1188608/full |
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