Q-Switched and Mode-Locked Nd/Cr:YAG Ceramic Pulse Laser

Autor: T. Saiki, N. Hirota, S. Kanemori, Y. Iida
Jazyk: angličtina
Rok vydání: 2020
Předmět:
Zdroj: International Journal of Optics, Vol 2020 (2020)
Druh dokumentu: article
ISSN: 1687-9384
1687-9392
DOI: 10.1155/2020/4084587
Popis: A mode-locked and Q-switched short pulse laser using the Nd3+/Cr3+:YAG ceramic has been constructed with a SESAM and Cr4+:YAG crystal optical switch based on excite state absorption (ESA). Laser oscillations of the pulse laser were observed experimentally. The Nd/Cr:YAG ceramic laser has a high conversion efficiency from white light (such as lamp light or solar light) to the laser. The Nd/Cr:YAG ceramic has a higher laser gain than the Nd:YAG laser for the same pumping power. The laser oscillation can be obtained very easily. A single-mode-locked laser pulse with fast modulation on the order of 100 ps was obtained in some pump power regimes when using the Cr4+:YAG crystal. The obtained pulse duration of the short pulse was a few hundred ps. A maximum peak power of 60 kW was obtained when using a SESAM. The same level of peak power (60 kW) was also obtained when using the Cr4+:YAG crystal.
Databáze: Directory of Open Access Journals
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