Tunable Near-Infrared and Visible All-Solid-State Optical Parametric Oscillator Amplifier System Based on Potassium Titanyl Phosphate Crystal
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概要
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We present the design details and performance characteristics of a low-energy all-solid-state near-infrared optical parametric oscillator amplifier (OPOA). The pump source is a laser diode (LD) pumped frequency-doubled Nd:YAG laser with a single mode energy of 4 mJ in 8 ns, 50 Hz pulses. The OPOA system, based on potassium titanyl phosphate (KTP) crystal, features a low pump energy threshold at 532 nm of less than 0.4 mJ, broad tunability from 750 to 1040 nm for the signal and a conversion efficiency of 27% at 920 nm. External cavity second harmonic conversion of the idler to visible green-red light in a type II KTP crystal and of the signal to visible blue-green light in a type I BBO crystal was performed with efficiencies up to 10%. We have used the near-infrared output for wavelength-dependent fluorescence lifetime studies in ytterbium-doped laser materials. We have also used the second harmonic wavelengths between 565–600 nm to measure the transmission of Nd:YAG in a preliminary experiment to demonstrate the utility of the system.
- Publication Office, Japanese Journal of Applied Physics, Faculty of Science, University of Tokyoの論文
- 1996-09-15
著者
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Srinivasan Narayanan
Institute Of Laser Engineering Osaka University
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IZAWA Yasukazu
Institute for Laser Technology
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KIRIYAMA Hiromitsu
Institute of Laser Engineering, Osaka University
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NISHIDA Kanji
College of Integrated Arts and Sciences, University of Osaka Prefecture
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OWAKI Shigehiro
College of Integrated Arts and Sciences, University of Osaka Prefecture
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Yamanaka Masanobu
Institute Of Laser Engineering Osaka University
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Yamanaka Chiyoe
Institute For Laser Technology
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Nakai Sadao
Institute Of Laser Engineering Faculty Of Engineering Osaka University
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Kimura Takashi
Institute For Solid State Physics University Of Tokyo
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Srinivasan Narayanan
Institute of Laser Engineering, Osaka University, 2-6 Yamada-oka, Suita, Osaka 565, Japan
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Yamanaka Chiyoe
Institute for Laser Technology, 2-6 Yamada-oka, Suita, Osaka 565, Japan
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Kiriyama Hiromitsu
Institute of Laser Engineering, Osaka University, 2-6 Yamada-oka, Suita, Osaka 565, Japan
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Nishida Kanji
College of Integrated Arts and Sciences, University of Osaka Prefecture, 1-1 Gakuencho, Sakai, Osaka 591, Japan
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Owaki Shigehiro
College of Integrated Arts and Sciences, University of Osaka Prefecture, 1-1 Gakuencho, Sakai, Osaka 591, Japan
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Kimura Takashi
Institute of Laser Engineering, Osaka University, 2-6 Yamada-oka, Suita, Osaka 565, Japan
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Izawa Yasukazu
Institute of Laser Engineering, Osaka University, 2-6 Yamada-oka, Suita, Osaka 565, Japan
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