Lasing in 15 atm CO2 cell optically pumped by a Fe:ZnSe laser
| Autor: | Krishna Karki, Vladimir V. Fedorov, Sergei Tochitsky, G. J. Louwrens, D. Tovey, Chan Joshi, Dmitry Martyshkin, Jeremy Pigeon, Sergey B. Mirov, Ilan Ben-Zvi |
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| Rok vydání: | 2021 |
| Předmět: | |
| DOI: | 10.48550/arxiv.2106.12143 |
| Popis: | 10 {\mu}m lasing is studied in a compact CO2-He cell pressurized up to 15 atm when optically pumped by a ~50 mJ Fe:ZnSe laser tunable around 4.3 {\mu}m. The optimal pump wavelength and partial pressure of CO2 for generating 10 {\mu}m pulses are found to be ~4.4 {\mu}m and 0.75 atm, respectively. Without cavity optimization, the optical-to-optical conversion efficiency reached ~10% at a total pressure of 7 atm. The gain lifetime is measured to be ~1 {\mu}s at pressures above 10 atm, indicating the feasibility of using high-pressure optically pumped CO2 for the efficient amplification of picosecond 10 {\mu}m pulses. Comment: 10 pages, 8 figures |
| Databáze: | OpenAIRE |
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