DocumentCode
80005
Title
Compact 1625-nm Noncritically Phase-Matched 
Optical Parametric Oscillator Intracavity Driven by the  and achieving parametric radiations with high beam quality. Compact noncritically phase-matched 1625-nm KTiOPO<sub>4</sub> (KTP) OPO intracavity driven by the 1091-nm KTiOAsO<sub>4</sub> (KTA) Raman laser is demonstrated. The maximum average output power at the signal wavelength of 1625 nm is 180 mW obtained under the LD pump power of 8 W. Corresponding pulse repetition rate and pulse width are, respectively, measured to be 8 kHz and 2.1 ns, with the single pulse energy and peak power calculated to be 22.5 μJ and 10.7 kW, respectively. The <i>M</i><sup>2</sup> factor of the signal wave is measured to be 1.3 by knife-edge technique. The cascaded Raman conversion in KTA and OPO in KTP may provide a new method for obtaining 1625-nm laser with high beam quality, a potential light source for optical time-domain reflectometer.</div></div>
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<div class='row g-0 align-items-center mb-2'><div class='col-12 col-md-3 fullRecLabelEnglish fw-bold mb-2 mb-md-0'><span class='text-muted small'>Keywords</span></div><div class='col-12 col-md-9 leftDirection leftAlign'>Raman lasers; laser cavity resonators; optical parametric oscillators; optical phase matching; optical pumping; potassium compounds; KTP; KTiOAsO<sub>4</sub>; LD pump power; Raman laser; beam quality; cascaded Raman conversion; frequency 8 kHz; knife-edge technique; noncritically phase-matched optical parametric oscillator intracavity; parametric radiations; power 180 mW; power 8 W; pulse repetition rate; pulse width; time 2.1 ns; wavelength 1091 nm; wavelength 1625 nm; Frequency conversion; Laser beams; Nonlinear optics; Optical pumping; Optical resonators; Pump lasers; Diode-pumped lasers; Raman lasers; optical parametric oscillation;</div></div>
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<div class='row g-0 align-items-center mb-2'><div class='col-12 col-md-3 fullRecLabelEnglish fw-bold mb-2 mb-md-0'><span class='text-muted small'>fLanguage</span></div><div class='col-12 col-md-9 leftDirection leftAlign'>English</div></div>
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<div class='row g-0 align-items-center mb-2'><div class='col-12 col-md-3 fullRecLabelEnglish fw-bold mb-2 mb-md-0'><span class='text-muted small'>Journal_Title</span></div><div class='col-12 col-md-9 leftDirection leftAlign'>Photonics Technology Letters, IEEE</div></div>
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<div class='row g-0 align-items-center mb-2'><div class='col-12 col-md-3 fullRecLabelEnglish fw-bold mb-2 mb-md-0'><span class='text-muted small'>Publisher</span></div><div class='col-12 col-md-9 leftDirection leftAlign'>ieee</div></div>
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<div class='row g-0 align-items-center mb-2'><div class='col-12 col-md-3 fullRecLabelEnglish fw-bold mb-2 mb-md-0'><span class='text-muted small'>ISSN</span></div><div class='col-12 col-md-9 leftDirection leftAlign'>1041-1135</div></div>
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<div class='row g-0 align-items-center mb-2'><div class='col-12 col-md-3 fullRecLabelEnglish fw-bold mb-2 mb-md-0'><span class='text-muted small'>Type</span></div><div class='col-12 col-md-9 leftDirection leftAlign'><h2 class='mb-0 fw-semibold'>jour</h2></div></div>
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<div class='row g-0 align-items-center mb-2'><div class='col-12 col-md-3 fullRecLabelEnglish fw-bold mb-2 mb-md-0'><span class='text-muted small'>DOI</span></div><div class='col-12 col-md-9 leftDirection leftAlign'>10.1109/LPT.2012.2230436</div></div>
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<div class='row g-0 align-items-center mb-2'><div class='col-12 col-md-3 fullRecLabelEnglish fw-bold mb-2 mb-md-0'><span class='text-muted small'>Filename</span></div><div class='col-12 col-md-9 leftDirection leftAlign'>6365231</div></div>
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