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Characterization and estimation of refractive index profile of laser-written photopolymer optical waveguides
In this study, channel waveguides fabricated in photopolymer films by direct-writing using a low-power CW laser, are used as phase objects in a simple plane-wave diffraction setup, and the refractive index modulation ...
A fiber-integrated optical component fabricated via photopolymerization: Mode-selective grating coupler
We demonstrate a mode-selective directional coupler based on a grating structure, which is fabricated by laser direct-writing on a photopolymer thin film. The device is implemented on the flat planar surface of the D-Fiber, ...