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The birefringent property of LiNbO3 (LN) is used for producing nonlinear optical and electrooptical waveguides with adhesive-free bonding (AFB) technology. Cerenkov type second-harmonic generation (CSHG) has been observed.
Periodically bonded walk-off compensated (PB-WOC) KTiOPO4 stacks can have either quasi-noncritical phase-match (QNCPM) or quasi-phase-match (QPM) properties based on the bonding configurations, result in high efficiency and new applications for optical parametric oscillations (OPOs).
Quasi-non-critical phase-matched optical parametric oscillation has been achieved in periodically bonded KTiOPO4 stack with a 1.064-μm pump laser. A slope efficiency of 65% has been measured for the total output power of signal and idler.
A sensitive technique has been implemented to measure the differences in refractive indices between rare-earth doped YAG and un-doped YAG. Theoretically, a refractive index difference of less than 10−6 can be identified.
By using a chemical vapor deposited diamond wafer as heat spreader between a YAG and a copper heat sink, a 3.6 times higher effective heat transfer coefficient has been measured compared with conventional indium contact.
This invention relates to a method for forming, and constructs of, bonded composites of single crystal materials. The method comprises the steps of optically contacting the surfaces of the single crystal materials selected to form an assembly, bonding the surfaces by gradually heating the assembly to a temperature and for a duration sufficient to diffusion bond the surfaces, and cooling the bonded...
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