Double-prism domain PPLN for simultaneous laser Q-switching and optical parametric oscillation in a Nd:YVO4 laser

J. F. Huang, W. K. Chang, H. P. Chung, S. S. Huang, J. W. Chang, Y. H. Chen

Research output: Contribution to journalArticlepeer-review

4 Scopus citations

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 languageEnglish
Pages (from-to)30370-30378
Number of pages9
JournalOptics Express
Volume21
Issue number25
DOIs
StatePublished - 16 Dec 2013

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