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Solid State Laser for Astronomical Observation Research Team
Research Areas
Solid-state laser technology is of importance in remote-sensing, energy transfer, optical communication and laser guides of adaptive optics in space research and development. In this research, we investigate powerful solid-state laser technology used in space environments such as cosmic ray and vacuum environments, and in the presence of vibration during the launching of rockets. Our main work is the development of laser systems for atmospheric monitoring, which will be used in the JEMS-EUSO mission. Additionally, we also develop a high-power yellow laser (laser guide star) and eye-safe lasers used in astronomical telescopes and CO2 monitoring, respectively. 		 

Satoshi WADA
Team Head
Satoshi WADA (D.Sci.)


Research Subject
(1) Development of LD pumped solid-state lasers for atmospheric monitoring system used in the JEM-EUSO mission.
(2) High power coherent yellow light generation based on LD pumped solid-state lasers
(3) Development of eye-safe lasers for the wind and CO2 monitoring system
(4) Development of CARS for the atmospheric monitoring
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List of Selected Publications
(1) Ogawa, T., Urata, Y., Higuchi, M., Takahashi, J., Leong, C., Morikawa, J., Hashimoto, T., and Wada, S.:
"Optical and Thermal Characteristics of Nd:LuVO4 Grown by Floating Zone Method."
Japanese Journal of Applied Physics 2 012501-1-012501-3(2009)
(2) Louchev, OA., Urata, Y., Yumoto, M., Saito, N., and Wada, S.:
"Thermo-0ptical modeling of high power operation of 2μm codoped Tm,Ho solid-state lasers."
Journal of Applied Physics 104, 033114-1-033114-8(2008)
(3) Yumoto, M., Maeda, Y., Saito, N., Ogawa, T., Yamashita, M., and Wada, S.:
"Electronic Wavelength Tuning of Tunable Laser with Acousto-Optic Tunable Filter."
Japanese Journal of Applied Physics 47, 8411-8415 (2008)
(4) Nakamura, S., Yoshioka, H., Matsubara, Y., Ogawa, T., and Wada S.:
"Efficient tunable Yb:YAG ceramic laser."
Optics Communications 281. 4411-4414(2008)
(5) Wu, A., Ding, J., Xu, J., Shen, H., Ogawa, T., and Wada, S.:
"Crystal growth and optical performance of Nd:Sr3Ga2Ge4O14 crystals."
physica status solidi(a) 205, 1177-1180 (2008)
(6) Louchev, OA., Urata, Y., and Wada, S.:
"Numerical simulation and optimization of Q-switched 2 μm Tm, Ho:YLF laser."
Optics Express 15, 3940-3947 (2007).
(7) Morikawa, J., Leng, C., Hashimoto, T., Ogawa, T., Urata, Y., Wada, S., Higuchi,M., and Takahashi, J.:
"Thermal conductivity/diffusivity of Nd3+ doped GdVO4, YVO4, LuVO4, and Y3AI5O12 by temperature wave analysis"
Journal of Applied Physics. 103, 063522-1-063522-9 (2008)
(8) Saito, N., Akagawa, K., Kato, M., Takazawa, A., Hayano, Y., Saito, Y., Takami, H., Iye, M., and Wada, S.:
"Sodium D2 resonance radiation in single-pass sum-frequency generation with actively mode-locked Nd:YAG lasers."
Optics Letters 32, 1965-1967 (2007).
(9) Louchev, O.A., Urata, Y., Saito, N., and Wada, S.:
"Computational model for operation of 2μm co-doped Tm,Ho solid state lasers."
Optics Express, 15, 11903-11912 (2007).
(10) Saito, N., Akagawa, K., Hayano, Y., Saito, Y., Takami, H., Iye, M., and Wada, S.:
"Synchronization of 1064 and 1319nm Pulses Emitted from Actively Mode-Locked Nd:YAG Lasers and Its Application to 589nm Sum-Frequency Generation."
Japanese Journal of Applied Physics 44, 1484-1487 (2005).


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