120 W Efficient Single Frequency Amplification Based on Wide Tunable 1018 nm DBR Seed Source
High-power, widely tunable 1018 nm single-frequency fiber lasers and their harmonics play a crucial role in Rydberg microwave measurement applications. This study focuses on the development of a high-power 1018 nm single-frequency narrow-linewidth fiber laser amplifier based on a DBR single-frequenc...
Saved in:
| Main Authors: | , , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
IEEE
2025-01-01
|
| Series: | IEEE Photonics Journal |
| Subjects: | |
| Online Access: | https://ieeexplore.ieee.org/document/10970262/ |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1850196211495075840 |
|---|---|
| author | Pan Li Linfeng Li Kaiming Cao Ruihong Gao Heshan Liu Meng Shi Ziren Luo |
| author_facet | Pan Li Linfeng Li Kaiming Cao Ruihong Gao Heshan Liu Meng Shi Ziren Luo |
| author_sort | Pan Li |
| collection | DOAJ |
| description | High-power, widely tunable 1018 nm single-frequency fiber lasers and their harmonics play a crucial role in Rydberg microwave measurement applications. This study focuses on the development of a high-power 1018 nm single-frequency narrow-linewidth fiber laser amplifier based on a DBR single-frequency seed source. The DBR seed source, constructed using an 8 mm-long doped fiber, achieves a linewidth of 3.25 kHz and demonstrates a wavelength tuning range exceeding 1.51 nm across a temperature range of −10 <inline-formula><tex-math notation="LaTeX">$^{\circ }$</tex-math></inline-formula>C to 120 <inline-formula><tex-math notation="LaTeX">$^{\circ }$</tex-math></inline-formula>C. The tuning process exhibits excellent linearity between wavelength and temperature, with no observed mode hopping. To ensure high ASE and SBS suppression in the amplified output, a four-stage amplification and filtering scheme was implemented. By carefully selecting optical fibers and optimizing their lengths, the system achieves an output power exceeding 120 W for the 1018 nm single-frequency laser. Experimental results demonstrate a light-to-light conversion efficiency of over 77% in the main amplification stage, with an ASE suppression ratio greater than 60 dB. The amplified laser exhibits an output linewidth of 10.3 kHz and maintains exceptional beam quality, with an M<inline-formula><tex-math notation="LaTeX">$^{2}$</tex-math></inline-formula> factor of less than 1.3. These results highlight the effectiveness of the proposed design for high-power, narrow-linewidth laser applications. |
| format | Article |
| id | doaj-art-bcf59fae24d5471ca6ee9116e39a9315 |
| institution | OA Journals |
| issn | 1943-0655 |
| language | English |
| publishDate | 2025-01-01 |
| publisher | IEEE |
| record_format | Article |
| series | IEEE Photonics Journal |
| spelling | doaj-art-bcf59fae24d5471ca6ee9116e39a93152025-08-20T02:13:31ZengIEEEIEEE Photonics Journal1943-06552025-01-011731610.1109/JPHOT.2025.356259310970262120 W Efficient Single Frequency Amplification Based on Wide Tunable 1018 nm DBR Seed SourcePan Li0https://orcid.org/0009-0008-6618-7425Linfeng Li1https://orcid.org/0009-0000-8392-8426Kaiming Cao2https://orcid.org/0009-0008-3708-0389Ruihong Gao3Heshan Liu4https://orcid.org/0000-0001-9971-1707Meng Shi5https://orcid.org/0000-0002-6149-5161Ziren Luo6https://orcid.org/0000-0002-9533-8025National Microgravity Laboratory, Institute of Mechanics, Chinese Academy of Sciences, Beijing, ChinaNational Microgravity Laboratory, Institute of Mechanics, Chinese Academy of Sciences, Beijing, ChinaNational Microgravity Laboratory, Institute of Mechanics, Chinese Academy of Sciences, Beijing, ChinaNational Microgravity Laboratory, Institute of Mechanics, Chinese Academy of Sciences, Beijing, ChinaNational Microgravity Laboratory, Institute of Mechanics, Chinese Academy of Sciences, Beijing, ChinaNational Space Science Center, Chinese Academy of Sciences, Beijing, ChinaNational Microgravity Laboratory, Institute of Mechanics, Chinese Academy of Sciences, Beijing, ChinaHigh-power, widely tunable 1018 nm single-frequency fiber lasers and their harmonics play a crucial role in Rydberg microwave measurement applications. This study focuses on the development of a high-power 1018 nm single-frequency narrow-linewidth fiber laser amplifier based on a DBR single-frequency seed source. The DBR seed source, constructed using an 8 mm-long doped fiber, achieves a linewidth of 3.25 kHz and demonstrates a wavelength tuning range exceeding 1.51 nm across a temperature range of −10 <inline-formula><tex-math notation="LaTeX">$^{\circ }$</tex-math></inline-formula>C to 120 <inline-formula><tex-math notation="LaTeX">$^{\circ }$</tex-math></inline-formula>C. The tuning process exhibits excellent linearity between wavelength and temperature, with no observed mode hopping. To ensure high ASE and SBS suppression in the amplified output, a four-stage amplification and filtering scheme was implemented. By carefully selecting optical fibers and optimizing their lengths, the system achieves an output power exceeding 120 W for the 1018 nm single-frequency laser. Experimental results demonstrate a light-to-light conversion efficiency of over 77% in the main amplification stage, with an ASE suppression ratio greater than 60 dB. The amplified laser exhibits an output linewidth of 10.3 kHz and maintains exceptional beam quality, with an M<inline-formula><tex-math notation="LaTeX">$^{2}$</tex-math></inline-formula> factor of less than 1.3. These results highlight the effectiveness of the proposed design for high-power, narrow-linewidth laser applications.https://ieeexplore.ieee.org/document/10970262/DBRfiber amplificationfiberslaserssingle-mode |
| spellingShingle | Pan Li Linfeng Li Kaiming Cao Ruihong Gao Heshan Liu Meng Shi Ziren Luo 120 W Efficient Single Frequency Amplification Based on Wide Tunable 1018 nm DBR Seed Source IEEE Photonics Journal DBR fiber amplification fibers lasers single-mode |
| title | 120 W Efficient Single Frequency Amplification Based on Wide Tunable 1018 nm DBR Seed Source |
| title_full | 120 W Efficient Single Frequency Amplification Based on Wide Tunable 1018 nm DBR Seed Source |
| title_fullStr | 120 W Efficient Single Frequency Amplification Based on Wide Tunable 1018 nm DBR Seed Source |
| title_full_unstemmed | 120 W Efficient Single Frequency Amplification Based on Wide Tunable 1018 nm DBR Seed Source |
| title_short | 120 W Efficient Single Frequency Amplification Based on Wide Tunable 1018 nm DBR Seed Source |
| title_sort | 120 w efficient single frequency amplification based on wide tunable 1018 nm dbr seed source |
| topic | DBR fiber amplification fibers lasers single-mode |
| url | https://ieeexplore.ieee.org/document/10970262/ |
| work_keys_str_mv | AT panli 120wefficientsinglefrequencyamplificationbasedonwidetunable1018nmdbrseedsource AT linfengli 120wefficientsinglefrequencyamplificationbasedonwidetunable1018nmdbrseedsource AT kaimingcao 120wefficientsinglefrequencyamplificationbasedonwidetunable1018nmdbrseedsource AT ruihonggao 120wefficientsinglefrequencyamplificationbasedonwidetunable1018nmdbrseedsource AT heshanliu 120wefficientsinglefrequencyamplificationbasedonwidetunable1018nmdbrseedsource AT mengshi 120wefficientsinglefrequencyamplificationbasedonwidetunable1018nmdbrseedsource AT zirenluo 120wefficientsinglefrequencyamplificationbasedonwidetunable1018nmdbrseedsource |