Efficient, Compact Mid-Infrared Sources: A Systematic Study of Intracavity Difference-Frequency Generation
This study presents a compact intracavity difference-frequency generation (DFG) source designed for mid-infrared (mid-IR) applications. By optimizing overlap between the pump and signal beams, we obtained a black-box efficiency (<inline-formula><math xmlns="http://www.w3.org/1998/Math/...
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2024-12-01
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| Online Access: | https://www.mdpi.com/2304-6732/12/1/25 |
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| author | Saeed Salimian Rizi Liam G. K. Flannigan Alex Chiasson Tyler Kashak Daniel Poitras Chang-Qing Xu |
| author_facet | Saeed Salimian Rizi Liam G. K. Flannigan Alex Chiasson Tyler Kashak Daniel Poitras Chang-Qing Xu |
| author_sort | Saeed Salimian Rizi |
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| description | This study presents a compact intracavity difference-frequency generation (DFG) source designed for mid-infrared (mid-IR) applications. By optimizing overlap between the pump and signal beams, we obtained a black-box efficiency (<inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mrow><msub><mrow><mi>η</mi></mrow><mrow><mi>B</mi><mi>B</mi></mrow></msub></mrow></semantics></math></inline-formula>) of 3.4% W⁻<sup>1</sup> and a maximum DFG output power of 63 mW at a wavelength of 3437 nm for a 50 mm long periodically poled lithium niobate (PPLN) crystal. The mid-IR laser was systematically studied for various PPLN lengths (29 mm, 40 mm, and 50 mm), demonstrating extensive tunability across a range of mid-IR wavelengths. Stability assessments over short-term (2 min) and long-term (2 h) periods were also investigated, showing stability values of 0.91% and 1.08%, respectively. These advancements position our DFG laser as a promising candidate for potential applications in greenhouse gas detection and satellite communication, addressing the growing demand for reliable and efficient mid-IR sources. |
| format | Article |
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| institution | Kabale University |
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| language | English |
| publishDate | 2024-12-01 |
| publisher | MDPI AG |
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| series | Photonics |
| spelling | doaj-art-35e256a475c04f279d41f99b2fcac2352025-01-24T13:46:14ZengMDPI AGPhotonics2304-67322024-12-011212510.3390/photonics12010025Efficient, Compact Mid-Infrared Sources: A Systematic Study of Intracavity Difference-Frequency GenerationSaeed Salimian Rizi0Liam G. K. Flannigan1Alex Chiasson2Tyler Kashak3Daniel Poitras4Chang-Qing Xu5Department of Engineering Physics, McMaster University, Hamilton, ON L8S 4L8, CanadaDepartment of Engineering Physics, McMaster University, Hamilton, ON L8S 4L8, CanadaDepartment of Engineering Physics, McMaster University, Hamilton, ON L8S 4L8, CanadaDepartment of Engineering Physics, McMaster University, Hamilton, ON L8S 4L8, CanadaAdvanced Electronics and Photonics Research Center, National Research Council Canada, Ottawa, ON K1A 0R6, CanadaDepartment of Engineering Physics, McMaster University, Hamilton, ON L8S 4L8, CanadaThis study presents a compact intracavity difference-frequency generation (DFG) source designed for mid-infrared (mid-IR) applications. By optimizing overlap between the pump and signal beams, we obtained a black-box efficiency (<inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mrow><msub><mrow><mi>η</mi></mrow><mrow><mi>B</mi><mi>B</mi></mrow></msub></mrow></semantics></math></inline-formula>) of 3.4% W⁻<sup>1</sup> and a maximum DFG output power of 63 mW at a wavelength of 3437 nm for a 50 mm long periodically poled lithium niobate (PPLN) crystal. The mid-IR laser was systematically studied for various PPLN lengths (29 mm, 40 mm, and 50 mm), demonstrating extensive tunability across a range of mid-IR wavelengths. Stability assessments over short-term (2 min) and long-term (2 h) periods were also investigated, showing stability values of 0.91% and 1.08%, respectively. These advancements position our DFG laser as a promising candidate for potential applications in greenhouse gas detection and satellite communication, addressing the growing demand for reliable and efficient mid-IR sources.https://www.mdpi.com/2304-6732/12/1/25nonlinear opticsdifference-frequency generationmid-infrared laserDPSS laseroverlapblack-box efficiency |
| spellingShingle | Saeed Salimian Rizi Liam G. K. Flannigan Alex Chiasson Tyler Kashak Daniel Poitras Chang-Qing Xu Efficient, Compact Mid-Infrared Sources: A Systematic Study of Intracavity Difference-Frequency Generation Photonics nonlinear optics difference-frequency generation mid-infrared laser DPSS laser overlap black-box efficiency |
| title | Efficient, Compact Mid-Infrared Sources: A Systematic Study of Intracavity Difference-Frequency Generation |
| title_full | Efficient, Compact Mid-Infrared Sources: A Systematic Study of Intracavity Difference-Frequency Generation |
| title_fullStr | Efficient, Compact Mid-Infrared Sources: A Systematic Study of Intracavity Difference-Frequency Generation |
| title_full_unstemmed | Efficient, Compact Mid-Infrared Sources: A Systematic Study of Intracavity Difference-Frequency Generation |
| title_short | Efficient, Compact Mid-Infrared Sources: A Systematic Study of Intracavity Difference-Frequency Generation |
| title_sort | efficient compact mid infrared sources a systematic study of intracavity difference frequency generation |
| topic | nonlinear optics difference-frequency generation mid-infrared laser DPSS laser overlap black-box efficiency |
| url | https://www.mdpi.com/2304-6732/12/1/25 |
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