Widely tunable KTP optical parametric oscillator amplifier and its applications to fluorescence-lifetime measurement in Yb-doped laser materials

Hiromitsu Kiriyama, Narayanan Srinivasan, Takashi Kimura, Masanobu Yamanaka, Yasukazu Izawa, Tatsuhiko Yamanaka, Sadao Nakai, Chiyoe Yamanaka

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

1 Citation (Scopus)

Abstract

The design and construction of an efficient near-infrared holosteric optical parametric oscillator amplifier based on KTiOPO 4 (KTP) crystal are reported. The system is tunable from 840 to 1451 nm and generates up to 0.45 mJ at 920 nm with 27% efficiency in 4 - 6 ns pulses. The 532 nm pump source is a frequency doubled laser-diode pumped Nd:YAG laser producing up to 2 mJ in 8 ns, 50 Hz pulses. We have used the system to study the fluorescence lifetimes of Yb:YAG and Yb:glass as a function of wavelength. The data reveal interesting variations in the reabsorption enhanced Yb-ion lifetime. Some Yb:YAG samples exhibiting a sharp increase in their lifetime near the peak absorption wavelengths. The longest lifetime measured in a few mm thick sample of Yb:YAG was 3.3 ms, which would be highly beneficial for energy storage applications using laser diodes.

Original languageEnglish
Title of host publicationProceedings of SPIE - The International Society for Optical Engineering
EditorsMool C. Gupta, William J. Kozlovsky, David C. MacPherson
Pages262-268
Number of pages7
Publication statusPublished - Jan 1 1996
Externally publishedYes
EventNonlinear Frequency Generation and Conversion - San Jose, CA, USA
Duration: Jan 29 1996Jan 31 1996

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
Volume2700

Other

OtherNonlinear Frequency Generation and Conversion
CitySan Jose, CA, USA
Period1/29/961/31/96

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Computer Science Applications
  • Applied Mathematics
  • Electrical and Electronic Engineering

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  • Cite this

    Kiriyama, H., Srinivasan, N., Kimura, T., Yamanaka, M., Izawa, Y., Yamanaka, T., Nakai, S., & Yamanaka, C. (1996). Widely tunable KTP optical parametric oscillator amplifier and its applications to fluorescence-lifetime measurement in Yb-doped laser materials. In M. C. Gupta, W. J. Kozlovsky, & D. C. MacPherson (Eds.), Proceedings of SPIE - The International Society for Optical Engineering (pp. 262-268). (Proceedings of SPIE - The International Society for Optical Engineering; Vol. 2700).