A 2.7 $μ$m Backward Wave Optical Parametric Oscillator Source for CO$_2$ Spectroscopy
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arXiv
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| Auteurs principaux: | , , , , , , |
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| Format: | Preprint |
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2024
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| _version_ | 1866909288279048192 |
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| author | Vågberg, Adrian Brunzell, Martin Widarsson, Max Mutter, Patrick Zukauskas, Andrius Laurell, Fredrik Pasiskevicius, Valdas |
| author_facet | Vågberg, Adrian Brunzell, Martin Widarsson, Max Mutter, Patrick Zukauskas, Andrius Laurell, Fredrik Pasiskevicius, Valdas |
| contents | In this study, we demonstrated the direct use of an inherently narrowband backward wave in the mid-infrared for CO$_2$ and H$_2$O vapor spectroscopy in ambient air. This wave is generated in a backward wave optical parametric oscillator (BWOPO) pumped by a multi longitudinal mode laser at 1030 nm, eliminating the need for additional spectral narrowing or wavelength stabilization. A full characterization of the source is presented, revealing a central output at 2712 nm, showcasing temperature tuning of -1.77 GHz/K, and achieving an output pulse energy of 2.3 $μ$J. Novel methods are introduced for measuring the linewidth and wavelength stability using lab air. These approaches demonstrate a narrow output of 43 pm and establish an upper limit of stability at 65 MHz, with no active means of stabilization. These findings underscore the potential of BWOPOs as a robust platform for future DIAL systems. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2405_11661 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | A 2.7 $μ$m Backward Wave Optical Parametric Oscillator Source for CO$_2$ Spectroscopy Vågberg, Adrian Brunzell, Martin Widarsson, Max Mutter, Patrick Zukauskas, Andrius Laurell, Fredrik Pasiskevicius, Valdas Optics In this study, we demonstrated the direct use of an inherently narrowband backward wave in the mid-infrared for CO$_2$ and H$_2$O vapor spectroscopy in ambient air. This wave is generated in a backward wave optical parametric oscillator (BWOPO) pumped by a multi longitudinal mode laser at 1030 nm, eliminating the need for additional spectral narrowing or wavelength stabilization. A full characterization of the source is presented, revealing a central output at 2712 nm, showcasing temperature tuning of -1.77 GHz/K, and achieving an output pulse energy of 2.3 $μ$J. Novel methods are introduced for measuring the linewidth and wavelength stability using lab air. These approaches demonstrate a narrow output of 43 pm and establish an upper limit of stability at 65 MHz, with no active means of stabilization. These findings underscore the potential of BWOPOs as a robust platform for future DIAL systems. |
| title | A 2.7 $μ$m Backward Wave Optical Parametric Oscillator Source for CO$_2$ Spectroscopy |
| topic | Optics |
| url | https://arxiv.org/abs/2405.11661 |