Abstract
We report a design and demonstration of an electro-optically Qswitched intracavity optical parametric oscillator (IOPO) based on a unique ramped duty-cycle periodically poled lithium niobate (PPLN) in a diodepumped 1064-nm Nd:YVO4 laser. The PPLN crystal, having a doubleprism domain (DPD) structure with a domain period of 30 μm, can work simultaneously as an electro-optic (EO) beam deflector (and therefore an EO Q-switch in the laser cavity) and an optical parametric down converter. The characterized deflection sensitivity of the DPD PPLN device was 1.15°/kV-cm. At a 180-V Q-switching voltage and a 1-kHz switching rate, we measured a down-converted signal at 1550 nm with pulse energy of >8.1 μJ (or peak power of >2.3 kW) from the constructed IOPO at 7.5-W diode pump power. Continuous wavelength tuning of the IOPO signal was also demonstrated.
Original language | English |
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Pages (from-to) | 30370-30378 |
Number of pages | 9 |
Journal | Optics Express |
Volume | 21 |
Issue number | 25 |
DOIs | |
State | Published - 16 Dec 2013 |