Abstract

A new fabrication method for lithium niobate ridge waveguides is reported. Lithium niobate ridge waveguide with a smooth surface was fabricated by ${\rm O}^{+}$ ions implanted combined with Ar ion beam etching. The beam propagation method (BPM) was used to simulate the properties of planar and ridge waveguides by use of a reconstructed refractive index profile. The simulation results match to the experimental results very well, and the loss value of the ridge waveguide is about 2 dB/cm.

© 2010 IEEE

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