TY - JOUR
T1 - Tunable near-infrared and visible all-solid-state optical parametric oscillator amplifier system based on potassium titanyl phosphate crystal
AU - Srinivasan, Narayanan
AU - Kimura, Takashi
AU - Kiriyama, Hiromitsu
AU - Nishida, Kanji
AU - Owaki, Shigehiro
AU - Yamanaka, Masanobu
AU - Izawa, Yasukazu
AU - Nakai, Sadao
AU - Yamanaka, Chiyoe
PY - 1996
Y1 - 1996
N2 - 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.
AB - 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.
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U2 - 10.1143/jjap.35.4639
DO - 10.1143/jjap.35.4639
M3 - Article
AN - SCOPUS:0030233370
VL - 35
SP - 4639
EP - 4644
JO - Japanese Journal of Applied Physics, Part 1: Regular Papers & Short Notes
JF - Japanese Journal of Applied Physics, Part 1: Regular Papers & Short Notes
SN - 0021-4922
IS - 9 A
ER -