High energy ultrafast laser at 2 μm using dispersion engineered Thulium-doped fiber
We report on demonstration of high energy pulse laser at 2 μm by employing a normal dispersion fiber attained by a waveguide dispersion engineering. The normal dispersion fiber has a W-type refractive index profile, with a Thulium(Tm)-doped core. In contrast to a strong anomalous dispersion at 2 μm...
| Hlavní autoři: | , , , , , , , , , |
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| Médium: | Journal Article |
| Jazyk: | English |
| Vydáno: |
2021
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| Témata: | |
| On-line přístup: | https://hdl.handle.net/10356/147101 |
| _version_ | 1826117130554179584 |
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| author | Chen, Yuhao Chen, Shaoxiang Sidharthan, Raghuraman Cheng, Chen Jian Liu, Kun Rao, Shreesha D. S. Bang, Ole Wang, Qijie Tang, Dingyuan Yoo, Seongwoo |
| author2 | School of Electrical and Electronic Engineering |
| author_facet | School of Electrical and Electronic Engineering Chen, Yuhao Chen, Shaoxiang Sidharthan, Raghuraman Cheng, Chen Jian Liu, Kun Rao, Shreesha D. S. Bang, Ole Wang, Qijie Tang, Dingyuan Yoo, Seongwoo |
| author_sort | Chen, Yuhao |
| collection | NTU |
| description | We report on demonstration of high energy pulse laser at 2 μm by employing a normal dispersion fiber attained by a waveguide dispersion engineering. The normal dispersion fiber has a W-type refractive index profile, with a Thulium(Tm)-doped core. In contrast to a strong anomalous dispersion at 2 μm in a step-index fiber, the design allows strong waveguide dispersion that can generate normal dispersion at the Tm emission band. Mode area scalability of this fiber is discussed under the normal dispersion requirement. The Tm-doped fiber (TDF) is deployed in a ring cavity to produce mode-locked pulses near 2 μm. Subsequently, the pulse is amplified with more than 27 dB gain through the normal dispersion TDF. The output pulse energy reaches up to ∼525 nJ at 1852 nm without pulse breaking due to the engineered dispersion. The achieved pulse energy is record high for all-fiber configuration near 2 μm, to our knowledge. |
| first_indexed | 2024-10-01T04:22:41Z |
| format | Journal Article |
| id | ntu-10356/147101 |
| institution | Nanyang Technological University |
| language | English |
| last_indexed | 2024-10-01T04:22:41Z |
| publishDate | 2021 |
| record_format | dspace |
| spelling | ntu-10356/1471012021-03-26T04:33:29Z High energy ultrafast laser at 2 μm using dispersion engineered Thulium-doped fiber Chen, Yuhao Chen, Shaoxiang Sidharthan, Raghuraman Cheng, Chen Jian Liu, Kun Rao, Shreesha D. S. Bang, Ole Wang, Qijie Tang, Dingyuan Yoo, Seongwoo School of Electrical and Electronic Engineering Engineering::Electrical and electronic engineering Specialty Fiber Fiber Lasers We report on demonstration of high energy pulse laser at 2 μm by employing a normal dispersion fiber attained by a waveguide dispersion engineering. The normal dispersion fiber has a W-type refractive index profile, with a Thulium(Tm)-doped core. In contrast to a strong anomalous dispersion at 2 μm in a step-index fiber, the design allows strong waveguide dispersion that can generate normal dispersion at the Tm emission band. Mode area scalability of this fiber is discussed under the normal dispersion requirement. The Tm-doped fiber (TDF) is deployed in a ring cavity to produce mode-locked pulses near 2 μm. Subsequently, the pulse is amplified with more than 27 dB gain through the normal dispersion TDF. The output pulse energy reaches up to ∼525 nJ at 1852 nm without pulse breaking due to the engineered dispersion. The achieved pulse energy is record high for all-fiber configuration near 2 μm, to our knowledge. Economic Development Board (EDB) Ministry of Education (MOE) Published version This work was supported in part by Academic Research Fund Tier 1, Ministry of Education (Singapore) under Project Grant 2018-T1- 001-148 (RG 84/18), in part by Horizon 2020 Framework Programme (H2020) Research and Innovation Program under Marie Sklodowska-Curie (722380) (SUPUVIR), and in part by EDB IPP project under Grant S16-1257-IPP COY-15-IPP/160006 in association with Sintec Optronics Pte. Ltd. 2021-03-26T04:33:28Z 2021-03-26T04:33:28Z 2019 Journal Article Chen, Y., Chen, S., Sidharthan, R., Cheng, C. J., Liu, K., Rao, S. D. S., Bang, O., Wang, Q., Tang, D. & Yoo, S. (2019). High energy ultrafast laser at 2 μm using dispersion engineered Thulium-doped fiber. IEEE Photonics Journal, 11(6). https://dx.doi.org/10.1109/JPHOT.2019.2945928 1943-0655 0000-0003-1542-8483 0000-0003-4017-9327 0000-0002-9784-495X 0000-0003-2007-0930 0000-0002-9910-1455 0000-0002-4649-8786 https://hdl.handle.net/10356/147101 10.1109/JPHOT.2019.2945928 2-s2.0-85077971267 6 11 en 2018-T1- 001-148 (RG 84/18) S16-1257-IPP COY-15-IPP/160006 IEEE Photonics Journal © 2019 IEEE. This journal is 100% open access, which means that all content is freely available without charge to users or their institutions. All articles accepted after 12 June 2019 are published under a CC BY 4.0 license, and the author retains copyright. Users are allowed to read, download, copy, distribute, print, search, or link to the full texts of the articles, or use them for any other lawful purpose, as long as proper attribution is given. application/pdf |
| spellingShingle | Engineering::Electrical and electronic engineering Specialty Fiber Fiber Lasers Chen, Yuhao Chen, Shaoxiang Sidharthan, Raghuraman Cheng, Chen Jian Liu, Kun Rao, Shreesha D. S. Bang, Ole Wang, Qijie Tang, Dingyuan Yoo, Seongwoo High energy ultrafast laser at 2 μm using dispersion engineered Thulium-doped fiber |
| title | High energy ultrafast laser at 2 μm using dispersion engineered Thulium-doped fiber |
| title_full | High energy ultrafast laser at 2 μm using dispersion engineered Thulium-doped fiber |
| title_fullStr | High energy ultrafast laser at 2 μm using dispersion engineered Thulium-doped fiber |
| title_full_unstemmed | High energy ultrafast laser at 2 μm using dispersion engineered Thulium-doped fiber |
| title_short | High energy ultrafast laser at 2 μm using dispersion engineered Thulium-doped fiber |
| title_sort | high energy ultrafast laser at 2 μm using dispersion engineered thulium doped fiber |
| topic | Engineering::Electrical and electronic engineering Specialty Fiber Fiber Lasers |
| url | https://hdl.handle.net/10356/147101 |
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