Cascaded Directional Coupler-Based Triplexer Working on Spectroscopically Relevant Wavelengths for Multiple Gas Detection
In this article, we present experimental and simulation results of a novel high-performance cascaded directional coupler-based triplexer. The device is designed to combine the wavelengths of 1530 nm, 1653.7 nm, and 2003 nm for use in spectroscopy systems targeting the detection of ammonia, methane,...
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| Format: | Article |
| Language: | English |
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MDPI AG
2025-02-01
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| Series: | Photonics |
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| Online Access: | https://www.mdpi.com/2304-6732/12/3/192 |
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| author | Ajmal Thottoli Gabriele Biagi Artem S. Vorobev Antonella D’Orazio Giovanni Magno Liam O’Faolain |
| author_facet | Ajmal Thottoli Gabriele Biagi Artem S. Vorobev Antonella D’Orazio Giovanni Magno Liam O’Faolain |
| author_sort | Ajmal Thottoli |
| collection | DOAJ |
| description | In this article, we present experimental and simulation results of a novel high-performance cascaded directional coupler-based triplexer. The device is designed to combine the wavelengths of 1530 nm, 1653.7 nm, and 2003 nm for use in spectroscopy systems targeting the detection of ammonia, methane, and carbon dioxide gases, respectively. The triplexer’s functions focus on enhancing the coupling efficiency and selectivity, while facilitating the on-chip integration of diode lasers. The experimental results demonstrate that the coupling efficiency is 82%, 73%, and 91% for the respective wavelengths of 1530 nm, 1653.7 nm, and 2003 nm. The results highlight the triplexer’s capability as a multifunctional beam combiner and an adaptable power source, essential for advanced gas sensing techniques and integrated couplers. |
| format | Article |
| id | doaj-art-06b96f76d5734928bef30895049f2fb2 |
| institution | Kabale University |
| issn | 2304-6732 |
| language | English |
| publishDate | 2025-02-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Photonics |
| spelling | doaj-art-06b96f76d5734928bef30895049f2fb22025-08-20T03:43:14ZengMDPI AGPhotonics2304-67322025-02-0112319210.3390/photonics12030192Cascaded Directional Coupler-Based Triplexer Working on Spectroscopically Relevant Wavelengths for Multiple Gas DetectionAjmal Thottoli0Gabriele Biagi1Artem S. Vorobev2Antonella D’Orazio3Giovanni Magno4Liam O’Faolain5Department of Electrical and Information Engineering, Politecnico di Bari, 70125 Bari, ItalyCentre for Advanced Photonics and Process Analysis, Munster Technological University, T12 T66T Cork, IrelandCentre for Advanced Photonics and Process Analysis, Munster Technological University, T12 T66T Cork, IrelandDepartment of Electrical and Information Engineering, Politecnico di Bari, 70125 Bari, ItalyDepartment of Electrical and Information Engineering, Politecnico di Bari, 70125 Bari, ItalyCentre for Advanced Photonics and Process Analysis, Munster Technological University, T12 T66T Cork, IrelandIn this article, we present experimental and simulation results of a novel high-performance cascaded directional coupler-based triplexer. The device is designed to combine the wavelengths of 1530 nm, 1653.7 nm, and 2003 nm for use in spectroscopy systems targeting the detection of ammonia, methane, and carbon dioxide gases, respectively. The triplexer’s functions focus on enhancing the coupling efficiency and selectivity, while facilitating the on-chip integration of diode lasers. The experimental results demonstrate that the coupling efficiency is 82%, 73%, and 91% for the respective wavelengths of 1530 nm, 1653.7 nm, and 2003 nm. The results highlight the triplexer’s capability as a multifunctional beam combiner and an adaptable power source, essential for advanced gas sensing techniques and integrated couplers.https://www.mdpi.com/2304-6732/12/3/192triplexerdirectional couplersilicon nitride integrated photonicsgas spectroscopy |
| spellingShingle | Ajmal Thottoli Gabriele Biagi Artem S. Vorobev Antonella D’Orazio Giovanni Magno Liam O’Faolain Cascaded Directional Coupler-Based Triplexer Working on Spectroscopically Relevant Wavelengths for Multiple Gas Detection Photonics triplexer directional coupler silicon nitride integrated photonics gas spectroscopy |
| title | Cascaded Directional Coupler-Based Triplexer Working on Spectroscopically Relevant Wavelengths for Multiple Gas Detection |
| title_full | Cascaded Directional Coupler-Based Triplexer Working on Spectroscopically Relevant Wavelengths for Multiple Gas Detection |
| title_fullStr | Cascaded Directional Coupler-Based Triplexer Working on Spectroscopically Relevant Wavelengths for Multiple Gas Detection |
| title_full_unstemmed | Cascaded Directional Coupler-Based Triplexer Working on Spectroscopically Relevant Wavelengths for Multiple Gas Detection |
| title_short | Cascaded Directional Coupler-Based Triplexer Working on Spectroscopically Relevant Wavelengths for Multiple Gas Detection |
| title_sort | cascaded directional coupler based triplexer working on spectroscopically relevant wavelengths for multiple gas detection |
| topic | triplexer directional coupler silicon nitride integrated photonics gas spectroscopy |
| url | https://www.mdpi.com/2304-6732/12/3/192 |
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