1 August 1995 Measuring refractive index profiles of integrated LiNbO3 waveguides
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Abstract
A nondestructive technique that provides near-field measurements as well as refractive index profiles and geometry of waveguides in LiNbO3 within a few minutes is demonstrated. It is a modification of the refracted-near-field (RNF) method well known for optical fiber characterization. Spatial resolution below 1 μm is achieved. The index resolution is about 2 x 10-4, the reproducibility better than 7%. A new calibration method for RNF measurement is introduced.
Barbara Groebli, Barbara Groebli, Bernard Gisin, Bernard Gisin, Nicolas Gisin, Nicolas Gisin, Hugo Zbinden, Hugo Zbinden, } "Measuring refractive index profiles of integrated LiNbO3 waveguides," Optical Engineering 34(8), (1 August 1995). https://doi.org/10.1117/12.200614 . Submission:
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