Sub-Nanosecond, Room-Temperature, Mid-IR Fe:ZnSe Gain-Switched Laser: Experimental Characterization and Modeling
We present the modeling and experimental characterization of a room-temperature, sub-nanosecond, gain-switched (GS) Fe:ZnSe laser operating at 4.4–4.8 μm. As pump sources, we used a 2.79 µm Q-switched Cr:Er:YSGG laser with a pulse duration of 52 ns and the 2.98 μm idler of a Nd:YAG pumped KTA-OPO sy...
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MDPI AG
2025-03-01
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| Series: | Photonics |
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| author | Saugat Ghimire Daniil Danilin Dmitry Martyshkin Vladimir Fedorov Sergey Mirov |
| author_facet | Saugat Ghimire Daniil Danilin Dmitry Martyshkin Vladimir Fedorov Sergey Mirov |
| author_sort | Saugat Ghimire |
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| description | We present the modeling and experimental characterization of a room-temperature, sub-nanosecond, gain-switched (GS) Fe:ZnSe laser operating at 4.4–4.8 μm. As pump sources, we used a 2.79 µm Q-switched Cr:Er:YSGG laser with a pulse duration of 52 ns and the 2.98 μm idler of a Nd:YAG pumped KTA-OPO system with a pulse duration of 9 ns. The shortest pulse durations were measured to be 1.4 ns and 0.7 ns under excitation by the Cr:Er:YSGG laser and KTA-OPO system, respectively. The developed Fe:ZnSe laser model showed good agreement with the experimental results. Optimization of the laser parameters based on model simulations suggests that an Fe:ZnSe microchip laser configuration could be achieved with a pulse duration of ~250 ps and an efficiency of ~20%. |
| format | Article |
| id | doaj-art-c94fd5d7ad52450ea84f672a42e7b81f |
| institution | DOAJ |
| issn | 2304-6732 |
| language | English |
| publishDate | 2025-03-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Photonics |
| spelling | doaj-art-c94fd5d7ad52450ea84f672a42e7b81f2025-08-20T02:42:25ZengMDPI AGPhotonics2304-67322025-03-0112325410.3390/photonics12030254Sub-Nanosecond, Room-Temperature, Mid-IR Fe:ZnSe Gain-Switched Laser: Experimental Characterization and ModelingSaugat Ghimire0Daniil Danilin1Dmitry Martyshkin2Vladimir Fedorov3Sergey Mirov4Department of Physics, University of Alabama at Birmingham, 1720 2nd Ave. S. ESH 4100, Birmingham, AL 35294-1170, USADepartment of Physics, University of Alabama at Birmingham, 1720 2nd Ave. S. ESH 4100, Birmingham, AL 35294-1170, USADepartment of Physics, University of Alabama at Birmingham, 1720 2nd Ave. S. ESH 4100, Birmingham, AL 35294-1170, USADepartment of Physics, University of Alabama at Birmingham, 1720 2nd Ave. S. ESH 4100, Birmingham, AL 35294-1170, USADepartment of Physics, University of Alabama at Birmingham, 1720 2nd Ave. S. ESH 4100, Birmingham, AL 35294-1170, USAWe present the modeling and experimental characterization of a room-temperature, sub-nanosecond, gain-switched (GS) Fe:ZnSe laser operating at 4.4–4.8 μm. As pump sources, we used a 2.79 µm Q-switched Cr:Er:YSGG laser with a pulse duration of 52 ns and the 2.98 μm idler of a Nd:YAG pumped KTA-OPO system with a pulse duration of 9 ns. The shortest pulse durations were measured to be 1.4 ns and 0.7 ns under excitation by the Cr:Er:YSGG laser and KTA-OPO system, respectively. The developed Fe:ZnSe laser model showed good agreement with the experimental results. Optimization of the laser parameters based on model simulations suggests that an Fe:ZnSe microchip laser configuration could be achieved with a pulse duration of ~250 ps and an efficiency of ~20%.https://www.mdpi.com/2304-6732/12/3/254mid-infraredgain-switched laserspulsed lasersFe:ZnSesolid-state laserselectro-optics |
| spellingShingle | Saugat Ghimire Daniil Danilin Dmitry Martyshkin Vladimir Fedorov Sergey Mirov Sub-Nanosecond, Room-Temperature, Mid-IR Fe:ZnSe Gain-Switched Laser: Experimental Characterization and Modeling Photonics mid-infrared gain-switched lasers pulsed lasers Fe:ZnSe solid-state lasers electro-optics |
| title | Sub-Nanosecond, Room-Temperature, Mid-IR Fe:ZnSe Gain-Switched Laser: Experimental Characterization and Modeling |
| title_full | Sub-Nanosecond, Room-Temperature, Mid-IR Fe:ZnSe Gain-Switched Laser: Experimental Characterization and Modeling |
| title_fullStr | Sub-Nanosecond, Room-Temperature, Mid-IR Fe:ZnSe Gain-Switched Laser: Experimental Characterization and Modeling |
| title_full_unstemmed | Sub-Nanosecond, Room-Temperature, Mid-IR Fe:ZnSe Gain-Switched Laser: Experimental Characterization and Modeling |
| title_short | Sub-Nanosecond, Room-Temperature, Mid-IR Fe:ZnSe Gain-Switched Laser: Experimental Characterization and Modeling |
| title_sort | sub nanosecond room temperature mid ir fe znse gain switched laser experimental characterization and modeling |
| topic | mid-infrared gain-switched lasers pulsed lasers Fe:ZnSe solid-state lasers electro-optics |
| url | https://www.mdpi.com/2304-6732/12/3/254 |
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