Microjoule-level mid-infrared femtosecond pulse generation in hollow-core fibers
A fiber-based approach that generates mid-infrared femtosecond pulses in the 3–4 (Formula presented.) m spectral region with microjoule-level single pulse energy is demonstrated. This is realized in a piece of gas-filled antiresonant hollow-core fiber that is pumped by a two-micron light source. A r...
| Main Authors: | , , , , , |
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| Other Authors: | |
| Format: | Journal Article |
| Language: | English |
| Published: |
2023
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| Subjects: | |
| Online Access: | https://hdl.handle.net/10356/168884 |
| _version_ | 1826121998002028544 |
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| author | Deng, Ang Gavara, Trivikramarao Hassan, Muhammad Rosdi Abu Xiong, Daiqi Hasan, Md Imran Chang, Wonkeun |
| author2 | School of Electrical and Electronic Engineering |
| author_facet | School of Electrical and Electronic Engineering Deng, Ang Gavara, Trivikramarao Hassan, Muhammad Rosdi Abu Xiong, Daiqi Hasan, Md Imran Chang, Wonkeun |
| author_sort | Deng, Ang |
| collection | NTU |
| description | A fiber-based approach that generates mid-infrared femtosecond pulses in the 3–4 (Formula presented.) m spectral region with microjoule-level single pulse energy is demonstrated. This is realized in a piece of gas-filled antiresonant hollow-core fiber that is pumped by a two-micron light source. A rapid variation of the dispersion near a structural resonance of the fiber creates a phase-matching point in mid-infrared, which mediates the frequency-down conversion. Femtosecond pulses centered at 3.16 (Formula presented.) m wavelength with the pulse energy of more than 1 (Formula presented.) J are generated, achieving a conversion efficiency as high as 8.2%. The emission wavelength is determined solely by the dielectric wall thickness of cladding elements, while the yield is subject to other experimental parameters. This, combined with high power-handling capability of hollow-core fibers, makes it possible to power scale the mid-infrared output by either increasing the pulse energy or repetition rate of the pump. The technique presents a new pathway to build an all-fiber-based mid-infrared supercontinuum source, which promises to be a powerful new tool for ultrahigh sensitivity molecular spectroscopy. |
| first_indexed | 2024-10-01T05:41:18Z |
| format | Journal Article |
| id | ntu-10356/168884 |
| institution | Nanyang Technological University |
| language | English |
| last_indexed | 2025-03-09T13:07:28Z |
| publishDate | 2023 |
| record_format | dspace |
| spelling | ntu-10356/1688842025-02-13T10:37:51Z Microjoule-level mid-infrared femtosecond pulse generation in hollow-core fibers Deng, Ang Gavara, Trivikramarao Hassan, Muhammad Rosdi Abu Xiong, Daiqi Hasan, Md Imran Chang, Wonkeun School of Electrical and Electronic Engineering Engineering nonlinear fiber optics ultrashort pulses A fiber-based approach that generates mid-infrared femtosecond pulses in the 3–4 (Formula presented.) m spectral region with microjoule-level single pulse energy is demonstrated. This is realized in a piece of gas-filled antiresonant hollow-core fiber that is pumped by a two-micron light source. A rapid variation of the dispersion near a structural resonance of the fiber creates a phase-matching point in mid-infrared, which mediates the frequency-down conversion. Femtosecond pulses centered at 3.16 (Formula presented.) m wavelength with the pulse energy of more than 1 (Formula presented.) J are generated, achieving a conversion efficiency as high as 8.2%. The emission wavelength is determined solely by the dielectric wall thickness of cladding elements, while the yield is subject to other experimental parameters. This, combined with high power-handling capability of hollow-core fibers, makes it possible to power scale the mid-infrared output by either increasing the pulse energy or repetition rate of the pump. The technique presents a new pathway to build an all-fiber-based mid-infrared supercontinuum source, which promises to be a powerful new tool for ultrahigh sensitivity molecular spectroscopy. Ministry of Education (MOE) This work is supported by the Ministry of Education, Singapore, under its Academic Research Fund Tier 2 (MOE-T2EP50122-0019). 2023-06-21T05:06:36Z 2023-06-21T05:06:36Z 2023 Journal Article Deng, A., Gavara, T., Hassan, M. R. A., Xiong, D., Hasan, M. I. & Chang, W. (2023). Microjoule-level mid-infrared femtosecond pulse generation in hollow-core fibers. Laser and Photonics Reviews, 17(6), 2200882-. https://dx.doi.org/10.1002/lpor.202200882 1863-8880 https://hdl.handle.net/10356/168884 10.1002/lpor.202200882 2-s2.0-85150886317 6 17 2200882 en MOE-T2EP50122-0019 Laser and Photonics Reviews doi:10.21979/N9/P3OPPA © 2023 Wiley-VCH GmbH. All rights reserved. |
| spellingShingle | Engineering nonlinear fiber optics ultrashort pulses Deng, Ang Gavara, Trivikramarao Hassan, Muhammad Rosdi Abu Xiong, Daiqi Hasan, Md Imran Chang, Wonkeun Microjoule-level mid-infrared femtosecond pulse generation in hollow-core fibers |
| title | Microjoule-level mid-infrared femtosecond pulse generation in hollow-core fibers |
| title_full | Microjoule-level mid-infrared femtosecond pulse generation in hollow-core fibers |
| title_fullStr | Microjoule-level mid-infrared femtosecond pulse generation in hollow-core fibers |
| title_full_unstemmed | Microjoule-level mid-infrared femtosecond pulse generation in hollow-core fibers |
| title_short | Microjoule-level mid-infrared femtosecond pulse generation in hollow-core fibers |
| title_sort | microjoule level mid infrared femtosecond pulse generation in hollow core fibers |
| topic | Engineering nonlinear fiber optics ultrashort pulses |
| url | https://hdl.handle.net/10356/168884 |
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