Lithium niobate proton-exchange technology for phase-amplitude modulators

Mauro Varasi; Antonello Vanucci; Mario Signorazzi

doi:10.1117/12.50886

1 December 1991 Lithium niobate proton-exchange technology for phase-amplitude modulators

Mauro Varasi, Antonello Vanucci, Mario Signorazzi

Proceedings Volume 1583, Integrated Optical Circuits; (1991) https://doi.org/10.1117/12.50886
Event: OE Fiber, 1991, Boston, MA, United States

Abstract

The PE technology has been applied in the fabrication of a wide bandwidth interferometric modulator in X-cut Lithium Niobate. The utilization of dilute melt of Benzoic Acid and Lithium Benzoate as source in the H-Li exchange process, and the introduction of a subsequent appropriate thermal annealing allow to obtain high quality channel waveguide characterized by high long term stability, high electrooptical efficiency , low propagation losses, low fiber-waveguide insertion losses and high resistance to the laser radiation induced damage. The main advantages of this modulator in comparison with the similar Ti-induffusion based device are the lower fabrication cost and the possibility to handle higher optical power, allowing higher dynamic range of the signal processing system.

Citation Download Citation

Mauro Varasi, Antonello Vanucci, and Mario Signorazzi "Lithium niobate proton-exchange technology for phase-amplitude modulators", Proc. SPIE 1583, Integrated Optical Circuits, (1 December 1991); https://doi.org/10.1117/12.50886

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