We demonstrate a novel technique for instituting complex and arbitrary shaped micron-scale domain patterns in LiNbO3 at room temperature. Fabrication of continuous domains as narrow as 2 microm across and hexagonal patterns of the same order accompanied by real time visualization of the poling process are presented.
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| http://dx.doi.org/10.1364/opex.13.003408 | DOI Listing |
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- Lasing and self-pumped optical parametric oscillation are achieved in a micro-resonator made of neodymium-doped lithium niobate, with a laser output of 5 mW.
- At 6 mW output power, the combined signal and idler outputs exceed 1.2 mW, generating light wavelengths from 1.5 to 3.8 μm.
- This is the first demonstration of a quasi-phase-matched self-pumped nonlinear optical process in a micro-resonator, indicating potential for a cost-effective, wavelength-tunable coherent light source.
We demonstrate optical parametric oscillation in a millimeter-sized whispering gallery resonator suitable for broadband infrared spectroscopy. This nonlinear-optical process is quasi-phase-matched using a radial domain pattern with 30 µm period length, inscribed by calligraphic poling. The output wavelengths are selected in a controlled way over hundreds of nanometers.
View Article and Find Full Text PDFWe demonstrate a novel technique for instituting complex and arbitrary shaped micron-scale domain patterns in LiNbO3 at room temperature. Fabrication of continuous domains as narrow as 2 microm across and hexagonal patterns of the same order accompanied by real time visualization of the poling process are presented.
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