High-power direct green laser oscillation of 598 mW in Pr 3+-doped waterproof fluoroaluminate glass fiber excited by two-polarization-combined GaN laser diodes

Jun Nakanishi, Yuya Horiuchi, Tsuyoshi Yamada, Osamu Ishii, Masaaki Yamazaki, Minoru Yoshida, Yasushi Fujimoto

Research output: Contribution to journalArticle

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We demonstrated a high-power and highly efficient Pr-doped waterproof fluoride glass fiber laser at 522.2nm excited by two-polarization-combined GaN laser diodes and achieved a subwatt output power of 598mW and slope efficiency of 43.0%. This system will enable us to make a vivid laser display, a photocoagulation laser for eye surgery, a color confocal scanning laser microscope, and an effective laser for material processing. Direct visible ultrashort pulse generation is also expected.

Original languageEnglish
Pages (from-to)1836-1838
Number of pages3
JournalOptics Letters
Issue number10
Publication statusPublished - 2011 May 15


ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics

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