Solid-state lasers directly pumped by InGaN-based green and blue laser diodes

Hiroki Tanaka, Kodai Iijima, Ryota Sawada, Naoto Sugiyama, Yasuaki Kiyota, Fumihiko Kannari

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

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.

Original languageEnglish
Title of host publicationConference on Lasers and Electro-Optics/Pacific Rim, CLEOPR 2017
PublisherOSA - The Optical Society
VolumePart F122-CLEOPR 2017
ISBN (Electronic)9781557528209
Publication statusPublished - 2017 Jan 1
EventConference on Lasers and Electro-Optics/Pacific Rim, CLEOPR 2017 - Singapore, Singapore
Duration: 2017 Jul 312017 Aug 4

Other

OtherConference on Lasers and Electro-Optics/Pacific Rim, CLEOPR 2017
CountrySingapore
CitySingapore
Period17/7/3117/8/4

    Fingerprint

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Mechanics of Materials

Cite this

Tanaka, H., Iijima, K., Sawada, R., Sugiyama, N., Kiyota, Y., & Kannari, F. (2017). Solid-state lasers directly pumped by InGaN-based green and blue laser diodes. In Conference on Lasers and Electro-Optics/Pacific Rim, CLEOPR 2017 (Vol. Part F122-CLEOPR 2017). [s1152] OSA - The Optical Society.