All Polarization Maintaining Brillouin Erbium-Doped Fiber Laser With Sub-kHz Linewidth Using Saturated Absorber and Self-Injection Feedback
A narrow-linewidth all-polarization-maintaining (PM) Brillouin erbium-doped fiber laser (BEFL) is proposed and demonstrated experimentally, which employs erbium-doped fiber (EDF) acting as both the linear gain and the Brillouin gain medium. In order to realize a single longitudinal mode (SLM) operat...
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IEEE
2024-01-01
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| Series: | IEEE Photonics Journal |
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| Online Access: | https://ieeexplore.ieee.org/document/10423109/ |
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| author | Junsen Yang Zhengkang Wang Jianming Shang Shiyou Xiao Zhixue Li Bin Luo Tianwei Jiang Song Yu |
| author_facet | Junsen Yang Zhengkang Wang Jianming Shang Shiyou Xiao Zhixue Li Bin Luo Tianwei Jiang Song Yu |
| author_sort | Junsen Yang |
| collection | DOAJ |
| description | A narrow-linewidth all-polarization-maintaining (PM) Brillouin erbium-doped fiber laser (BEFL) is proposed and demonstrated experimentally, which employs erbium-doped fiber (EDF) acting as both the linear gain and the Brillouin gain medium. In order to realize a single longitudinal mode (SLM) operation and a narrow linewidth fiber laser output, the saturable absorber (SA) and the optical self-injection feedback structure are employed in the BEFL for the first time. In this experiment, three sets of comparative experiments are conducted to demonstrate the effectiveness of the SA and the self-injection feedback structure. The experimental result shows that the SA structure can eliminate transient multimode phenomena and narrow the linewidth, and the self-injection feedback structure can act as an effective mode filter and a compound-cavity to make the intracavity mode purer. A stable SLM operation of the BEFL is verified by the delayed self-heterodyne system, which thanks to the adding of the SA and the self-injection feedback structure. The BEFL's wavelength stability detected by is less than 0.0045 nm over 14 hours. In addition, an ultra-narrow linewidth of approximately 224 Hz is obtained. |
| format | Article |
| id | doaj-art-782f24ade0ed4da5b86a1ec3b8a98629 |
| institution | DOAJ |
| issn | 1943-0655 |
| language | English |
| publishDate | 2024-01-01 |
| publisher | IEEE |
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| series | IEEE Photonics Journal |
| spelling | doaj-art-782f24ade0ed4da5b86a1ec3b8a986292025-08-20T02:41:52ZengIEEEIEEE Photonics Journal1943-06552024-01-011621810.1109/JPHOT.2024.336281910423109All Polarization Maintaining Brillouin Erbium-Doped Fiber Laser With Sub-kHz Linewidth Using Saturated Absorber and Self-Injection FeedbackJunsen Yang0https://orcid.org/0009-0003-7860-3477Zhengkang Wang1https://orcid.org/0000-0002-1021-6513Jianming Shang2https://orcid.org/0000-0002-3522-8035Shiyou Xiao3https://orcid.org/0009-0003-9780-2770Zhixue Li4https://orcid.org/0009-0004-2599-0191Bin Luo5https://orcid.org/0000-0001-9231-0273Tianwei Jiang6https://orcid.org/0000-0002-9005-4779Song Yu7https://orcid.org/0000-0003-1489-9021Beijing University of Posts and Telecommunications, Beijing, ChinaBeijing University of Posts and Telecommunications, Beijing, ChinaBeijing University of Posts and Telecommunications, Beijing, ChinaBeijing University of Posts and Telecommunications, Beijing, ChinaBeijing University of Posts and Telecommunications, Beijing, ChinaBeijing University of Posts and Telecommunications, Beijing, ChinaBeijing University of Posts and Telecommunications, Beijing, ChinaBeijing University of Posts and Telecommunications, Beijing, ChinaA narrow-linewidth all-polarization-maintaining (PM) Brillouin erbium-doped fiber laser (BEFL) is proposed and demonstrated experimentally, which employs erbium-doped fiber (EDF) acting as both the linear gain and the Brillouin gain medium. In order to realize a single longitudinal mode (SLM) operation and a narrow linewidth fiber laser output, the saturable absorber (SA) and the optical self-injection feedback structure are employed in the BEFL for the first time. In this experiment, three sets of comparative experiments are conducted to demonstrate the effectiveness of the SA and the self-injection feedback structure. The experimental result shows that the SA structure can eliminate transient multimode phenomena and narrow the linewidth, and the self-injection feedback structure can act as an effective mode filter and a compound-cavity to make the intracavity mode purer. A stable SLM operation of the BEFL is verified by the delayed self-heterodyne system, which thanks to the adding of the SA and the self-injection feedback structure. The BEFL's wavelength stability detected by is less than 0.0045 nm over 14 hours. In addition, an ultra-narrow linewidth of approximately 224 Hz is obtained.https://ieeexplore.ieee.org/document/10423109/Brillouin erbium-doped fiber laser (BEFL)saturable absorber (SA)self-injection feedback structure |
| spellingShingle | Junsen Yang Zhengkang Wang Jianming Shang Shiyou Xiao Zhixue Li Bin Luo Tianwei Jiang Song Yu All Polarization Maintaining Brillouin Erbium-Doped Fiber Laser With Sub-kHz Linewidth Using Saturated Absorber and Self-Injection Feedback IEEE Photonics Journal Brillouin erbium-doped fiber laser (BEFL) saturable absorber (SA) self-injection feedback structure |
| title | All Polarization Maintaining Brillouin Erbium-Doped Fiber Laser With Sub-kHz Linewidth Using Saturated Absorber and Self-Injection Feedback |
| title_full | All Polarization Maintaining Brillouin Erbium-Doped Fiber Laser With Sub-kHz Linewidth Using Saturated Absorber and Self-Injection Feedback |
| title_fullStr | All Polarization Maintaining Brillouin Erbium-Doped Fiber Laser With Sub-kHz Linewidth Using Saturated Absorber and Self-Injection Feedback |
| title_full_unstemmed | All Polarization Maintaining Brillouin Erbium-Doped Fiber Laser With Sub-kHz Linewidth Using Saturated Absorber and Self-Injection Feedback |
| title_short | All Polarization Maintaining Brillouin Erbium-Doped Fiber Laser With Sub-kHz Linewidth Using Saturated Absorber and Self-Injection Feedback |
| title_sort | all polarization maintaining brillouin erbium doped fiber laser with sub khz linewidth using saturated absorber and self injection feedback |
| topic | Brillouin erbium-doped fiber laser (BEFL) saturable absorber (SA) self-injection feedback structure |
| url | https://ieeexplore.ieee.org/document/10423109/ |
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