TY - GEN
T1 - Solid-state lasers directly pumped by InGaN-based green and blue laser diodes
AU - Tanaka, Hiroki
AU - Iijima, Kodai
AU - Sawada, Ryota
AU - Sugiyama, Naoto
AU - Kiyota, Yasuaki
AU - Kannari, Fumihiko
N1 - Funding Information:
We gratefully thank Nichia Inc. for supplying the green and blue LDs. This work was partly supported by a Grant-in-Aid for the Program of Leading Graduate Schools of Keio University for “Science for Development of Super Mature Society” from the Ministry of Education, Culture, Sport, Science and Technology in Japan.
Publisher Copyright:
© 2018 Optics InfoBase Conference Papers. All rights reserved.
PY - 2017
Y1 - 2017
N2 - Development of solid-state lasers, titanium-doped sapphire and praseodymium doped LiYF4 lasers, directly pumped by indium gallium nitride-based green or blue semiconductor lasers is presented. We experimentally revealed the existence of an additional absorption induced at 450-nm pumping, and compared the laser performance with respect to the pump wavelength (450, 478 and 520 nm). A mode-locking operation is demonstrated with a pulse width of 126 fs and an average power of 315 mW. For Pr:LiYF4 lasers, power scaling up to 4.8 W is achieved utilizing four 3.5-W 445-nm diodes at 640 nm with a slope efficiency of 50%. Intracavity second harmonic generation of passively Q-switched laser at 320 nm and a SESAM mode-locking at 640 nm are also obtained.
AB - Development of solid-state lasers, titanium-doped sapphire and praseodymium doped LiYF4 lasers, directly pumped by indium gallium nitride-based green or blue semiconductor lasers is presented. We experimentally revealed the existence of an additional absorption induced at 450-nm pumping, and compared the laser performance with respect to the pump wavelength (450, 478 and 520 nm). A mode-locking operation is demonstrated with a pulse width of 126 fs and an average power of 315 mW. For Pr:LiYF4 lasers, power scaling up to 4.8 W is achieved utilizing four 3.5-W 445-nm diodes at 640 nm with a slope efficiency of 50%. Intracavity second harmonic generation of passively Q-switched laser at 320 nm and a SESAM mode-locking at 640 nm are also obtained.
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M3 - Conference contribution
AN - SCOPUS:85059523254
SN - 9781509062904
T3 - Optics InfoBase Conference Papers
BT - Conference on Lasers and Electro-Optics/Pacific Rim, CLEOPR 2017
PB - Optica Publishing Group (formerly OSA)
T2 - Conference on Lasers and Electro-Optics/Pacific Rim, CLEOPR 2017
Y2 - 31 July 2017 through 4 August 2017
ER -