Development of a high-energy, quasi-three-level Nd:YVO4 laser at 914 nm for deep-blue light generation

Atsushi Sato; Yohei Nitsuma; Tomohiro Terasaki; Kazuhiro Asai; Shoken Ishii; Kohei Mizutani; Toshikazu Itabe

doi:10.1117/12.806395

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9 December 2008 Development of a high-energy, quasi-three-level Nd:YVO₄ laser at 914 nm for deep-blue light generation

Atsushi Sato, Yohei Nitsuma, Tomohiro Terasaki, Kazuhiro Asai, Shoken Ishii, Kohei Mizutani, Toshikazu Itabe

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Proceedings Volume 7153, Lidar Remote Sensing for Environmental Monitoring IX; 715316 (2008) https://doi.org/10.1117/12.806395
Event: SPIE Asia-Pacific Remote Sensing, 2008, Noumea, New Caledonia

Abstract

A deep-blue light source is useful for various vegetation studies because strong absorption features of chlorophyll a and b exist in this wavelength region. Second-harmonic generation of quasi-three-level Nd-doped lasers operating around 900 nm allows us to produce high-energy deep-blue light suitable for remote sensing of vegetation. Currently, we are developing a high-energy, Q-switched Nd:YVO4 laser operating at 914 nm. Preliminary experiments were performed in a four-level Nd:YAG laser operating at 1064 nm. An output energy of 42 mJ in a single Q-switched pulse with 11-ns pulse length was obtained for a incident pump energy of 653 mJ at 10 Hz.

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Atsushi Sato, Yohei Nitsuma, Tomohiro Terasaki, Kazuhiro Asai, Shoken Ishii, Kohei Mizutani, and Toshikazu Itabe "Development of a high-energy, quasi-three-level Nd:YVO₄ laser at 914 nm for deep-blue light generation", Proc. SPIE 7153, Lidar Remote Sensing for Environmental Monitoring IX, 715316 (9 December 2008); https://doi.org/10.1117/12.806395

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