Six-Wavelength-Switchable SLM Thulium-Doped Fiber Laser Enabled by Sampled FBGs and 3 × 3 Coupler Based Dual-Ring Compound Cavity Filter
A switchable and tunable six-wavelength single-longitudinal mode (SLM) thulium-doped fiber laser in the 2050 nm band is proposed and experimentally demonstrated. Two cascaded sampled fiber Bragg gratings (SFBGs), acted as an integrated six-channel reflector, are to define the lasing wavelength chann...
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IEEE
2022-01-01
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| Series: | IEEE Photonics Journal |
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| Online Access: | https://ieeexplore.ieee.org/document/9698990/ |
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| author | Dan Cheng Fengping Yan Ting Feng Luna Zhang Wenguo Han Qi Qin Ting Li Zhuoya Bai Dandan Yang Ying Guo Wei Wang Yan Bai |
| author_facet | Dan Cheng Fengping Yan Ting Feng Luna Zhang Wenguo Han Qi Qin Ting Li Zhuoya Bai Dandan Yang Ying Guo Wei Wang Yan Bai |
| author_sort | Dan Cheng |
| collection | DOAJ |
| description | A switchable and tunable six-wavelength single-longitudinal mode (SLM) thulium-doped fiber laser in the 2050 nm band is proposed and experimentally demonstrated. Two cascaded sampled fiber Bragg gratings (SFBGs), acted as an integrated six-channel reflector, are to define the lasing wavelength channels in a multi-wavelength switchable fiber laser for the first time. The switchability of the fiber laser was realized by polarization-dependent loss modulation. SLM lasing in each channel was guaranteed by a novel passive dual-ring compound cavity (DRCC), composed of two symmetric 3 × 3 optical couplers (OCs). Six single-wavelength operations are easily obtained and switched, with the high optical signal-to-noise ratios of >71 dB, >72 dB, >62 dB for <italic>λ</italic><sub>11</sub>–<italic>λ</italic><sub>13</sub> and > 65 dB, >61 dB, >59 dB for <italic>λ</italic><sub>21</sub>–<italic>λ</italic><sub>23,</sub> respectively. The maximum power and wavelength fluctuations are as low as 0.56 dB and 0.01 nm, respectively. The measured laser linewidths ranged from 7.5 to 9.2 kHz, calculated by the β-separation line method based on the measured frequency noise spectra. Nine switchable dual-wavelength operations with different wavelength intervals and two triple-wavelength operations were also obtained. Our proposed fiber laser has great potential in free-space optical communication. |
| first_indexed | 2024-04-12T16:38:35Z |
| format | Article |
| id | doaj.art-5cf7bcb24e9a4260ac70e42d8015f5dd |
| institution | Directory Open Access Journal |
| issn | 1943-0655 |
| language | English |
| last_indexed | 2024-04-12T16:38:35Z |
| publishDate | 2022-01-01 |
| publisher | IEEE |
| record_format | Article |
| series | IEEE Photonics Journal |
| spelling | doaj.art-5cf7bcb24e9a4260ac70e42d8015f5dd2022-12-22T03:24:54ZengIEEEIEEE Photonics Journal1943-06552022-01-011421810.1109/JPHOT.2022.31472239698990Six-Wavelength-Switchable SLM Thulium-Doped Fiber Laser Enabled by Sampled FBGs and 3 × 3 Coupler Based Dual-Ring Compound Cavity FilterDan Cheng0https://orcid.org/0000-0002-5973-8523Fengping Yan1https://orcid.org/0000-0003-3428-8252Ting Feng2https://orcid.org/0000-0001-5170-8365Luna Zhang3Wenguo Han4Qi Qin5https://orcid.org/0000-0002-8181-2291Ting Li6Zhuoya Bai7https://orcid.org/0000-0003-0082-9700Dandan Yang8Ying Guo9https://orcid.org/0000-0001-9970-8751Wei Wang10https://orcid.org/0000-0001-8406-4041Yan Bai11School of Electronic and Information Engineering, Beijing Jiaotong University, Beijing, ChinaSchool of Electronic and Information Engineering, Beijing Jiaotong University, Beijing, ChinaPhotonics Information Innovation Center, Hebei Provincial Center for Optical Sensing Innovations, College of Physics Science and Technology, Hebei University, Baoding, ChinaKey Lab of Solid State Laser, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, 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, ChinaSchool of Electronic and Information Engineering, Beijing Jiaotong University, Beijing, ChinaCollege of Electrical Engineering, Hebei University of Architecture, Zhangjiakou, Hebei, ChinaA switchable and tunable six-wavelength single-longitudinal mode (SLM) thulium-doped fiber laser in the 2050 nm band is proposed and experimentally demonstrated. Two cascaded sampled fiber Bragg gratings (SFBGs), acted as an integrated six-channel reflector, are to define the lasing wavelength channels in a multi-wavelength switchable fiber laser for the first time. The switchability of the fiber laser was realized by polarization-dependent loss modulation. SLM lasing in each channel was guaranteed by a novel passive dual-ring compound cavity (DRCC), composed of two symmetric 3 × 3 optical couplers (OCs). Six single-wavelength operations are easily obtained and switched, with the high optical signal-to-noise ratios of >71 dB, >72 dB, >62 dB for <italic>λ</italic><sub>11</sub>–<italic>λ</italic><sub>13</sub> and > 65 dB, >61 dB, >59 dB for <italic>λ</italic><sub>21</sub>–<italic>λ</italic><sub>23,</sub> respectively. The maximum power and wavelength fluctuations are as low as 0.56 dB and 0.01 nm, respectively. The measured laser linewidths ranged from 7.5 to 9.2 kHz, calculated by the β-separation line method based on the measured frequency noise spectra. Nine switchable dual-wavelength operations with different wavelength intervals and two triple-wavelength operations were also obtained. Our proposed fiber laser has great potential in free-space optical communication.https://ieeexplore.ieee.org/document/9698990/Thulium-doped fiber lasersingle-longitudinal-modelaser linewidthsampled fiber Bragg grating |
| spellingShingle | Dan Cheng Fengping Yan Ting Feng Luna Zhang Wenguo Han Qi Qin Ting Li Zhuoya Bai Dandan Yang Ying Guo Wei Wang Yan Bai Six-Wavelength-Switchable SLM Thulium-Doped Fiber Laser Enabled by Sampled FBGs and 3 × 3 Coupler Based Dual-Ring Compound Cavity Filter IEEE Photonics Journal Thulium-doped fiber laser single-longitudinal-mode laser linewidth sampled fiber Bragg grating |
| title | Six-Wavelength-Switchable SLM Thulium-Doped Fiber Laser Enabled by Sampled FBGs and 3 × 3 Coupler Based Dual-Ring Compound Cavity Filter |
| title_full | Six-Wavelength-Switchable SLM Thulium-Doped Fiber Laser Enabled by Sampled FBGs and 3 × 3 Coupler Based Dual-Ring Compound Cavity Filter |
| title_fullStr | Six-Wavelength-Switchable SLM Thulium-Doped Fiber Laser Enabled by Sampled FBGs and 3 × 3 Coupler Based Dual-Ring Compound Cavity Filter |
| title_full_unstemmed | Six-Wavelength-Switchable SLM Thulium-Doped Fiber Laser Enabled by Sampled FBGs and 3 × 3 Coupler Based Dual-Ring Compound Cavity Filter |
| title_short | Six-Wavelength-Switchable SLM Thulium-Doped Fiber Laser Enabled by Sampled FBGs and 3 × 3 Coupler Based Dual-Ring Compound Cavity Filter |
| title_sort | six wavelength switchable slm thulium doped fiber laser enabled by sampled fbgs and 3 x00d7 3 coupler based dual ring compound cavity filter |
| topic | Thulium-doped fiber laser single-longitudinal-mode laser linewidth sampled fiber Bragg grating |
| url | https://ieeexplore.ieee.org/document/9698990/ |
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