Compact efficient optical parametric generator internal to a Q-switched Nd:YVO4 laser with periodically poled MgO:LiNbO3 |
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| Authors: | Ji Feng Yao Jian-Quan Zhang Bai-Gang Zhang Tie-Li Xu De-Gang and Wang Peng |
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| Institution: | College of Precision Instrument and
Opto-electronics Engineering, Institute of Laser and
Optoelectronics, Tianjin University, Tianjin 300072,
China; College of Precision Instrument and
Opto-electronics Engineering, Institute of Laser and
Optoelectronics, Tianjin University, Tianjin 300072,
China;Key Laboratory of Optoelectric Information Science and
Technology, Ministry of Education, Tianjin Universit |
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| Abstract: | This paper demonstrates a compact efficient optical parametric
generator internal to a Q-switched diode-end-pumped Nd:YVOquasi-phase-matching,
intracavity optical parametric generator, periodically poled
MgO-doped lithium niobate (PPMgLN)Project supported by the National
Natural Science Foundation of China (Grant Nos 10474071 and
60671036).4265K, 4260F, 4270This paper demonstrates a compact efficient optical parametric
generator internal to a Q-switched diode-end-pumped Nd:YVOquasi-phase-matching,
intracavity optical parametric generator, periodically poled
MgO-doped lithium niobate (PPMgLN)Project supported by the National
Natural Science Foundation of China (Grant Nos 10474071 and
60671036).4265K, 4260F, 4270This paper demonstrates a compact efficient optical parametric
generator internal to a Q-switched diode-end-pumped Nd:YVOquasi-phase-matching,
intracavity optical parametric generator, periodically poled
MgO-doped lithium niobate (PPMgLN)Project supported by the National
Natural Science Foundation of China (Grant Nos 10474071 and
60671036).4265K, 4260F, 4270This paper demonstrates a compact efficient optical parametric
generator internal to a Q-switched diode-end-pumped Nd:YVOquasi-phase-matching,
intracavity optical parametric generator, periodically poled
MgO-doped lithium niobate (PPMgLN)Project supported by the National
Natural Science Foundation of China (Grant Nos 10474071 and
60671036).4265K, 4260F, 4270This paper demonstrates a compact efficient optical parametric
generator internal to a Q-switched diode-end-pumped Nd:YVOquasi-phase-matching,
intracavity optical parametric generator, periodically poled
MgO-doped lithium niobate (PPMgLN)Project supported by the National
Natural Science Foundation of China (Grant Nos 10474071 and
60671036).4265K, 4260F, 4270This paper demonstrates a compact efficient optical parametric
generator internal to a Q-switched diode-end-pumped Nd:YVO$_{4}$
laser with periodically poled MgO:LiNbO3(PPMgLN). With the
Q-switch set at a repetition rate of 25kHz and the PPMgLN crystal
operated at room temperature (25\du\,), the intracavity optical
parametric generator threshold was reached as a diode pump power of
0.9\,W. A maximum signal output power of 0.34W with a pulse width
of 25\,ns and a beam quality factor of 1.4 was obtained at an
incident diode power of 3.4\,W, leading to a conversion efficiency of
10{\%} with a slope efficiency of 14.4{\%}. By varying the crystal
temperature from 25 to 200\du, the output signal wavelengths were
tuned in range of 1506--1565\,nm. Over a 30-minutes interval, the
instability of the signal power was measured to be less than 1{\%}.
In addition, the threshold pump intensity for the intracavity optical
parametric generator is theoretically investigated, and the obtained
result is in good agreement with the experimental results. |
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| Keywords: | quasi-phase-matching intracavity optical parametric generator periodically poled
MgO-doped lithium niobate (PPMgLN) |
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