84 research outputs found
Correction of Y-Branches on Proton-exchanged Waveguides in Lithium Niobate By Femtosecond Writing Technology
Correction Y-branches power dividers of the multi-function integrated optics chips on proton-exchanged waveguides in lithium niobate by the technology of direct femtosecond laser writing were investigated. Optimal correction parameters and their influence on temperature stability of Y-splitter are determined.
Keywords: lithium niobate, Y-splitters, proton exchange, femtosecond writing, refractive index, integrated optics
Direct laser writing of periodic structures in a Cu-doped near-surface layer on z-cut LiNbO3 crystals
This work is funded by Volkswagen Foundation/Trilateral Project “Investigation of the domain wall conductivity in uniaxial ferroelectrics"
Dependence of pyroelectric response on inter-electrode capacitance for integrated-optical circuits utilizing x-cut LiNbO3 chips
Subsurface disorder and electro-optical properties of proton-exchanged LiNbO3 waveguides produced by different techniques
It has been established, that proton-exchanged LiNbO3 waveguides have a marked subsurface layer with structural disorder inducing degradation of electro-optical properties of these waveguides. At the same time, such a subsurface disorder is found to be less pronounced in soft proton-exchanged (SPE) waveguides in comparison with annealed proton-exchanged (APE) ones. The experimental samples of phase modulators fabricated by SPE technique exhibit a better electro-optical efficiency compared to the LiNbO3 modulators produced by the standard and improved APE techniques
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