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Proceedings Paper

Lithium niobate proton-exchange technology for phase-amplitude modulators
Author(s): Mauro Varasi; Antonello Vanucci; Mario Signorazzi
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Paper 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.

Paper Details

Date Published: 1 December 1991
PDF: 5 pages
Proc. SPIE 1583, Integrated Optical Circuits, (1 December 1991); doi: 10.1117/12.50886
Show Author Affiliations
Mauro Varasi, ALENIA (Italy)
Antonello Vanucci, ALENIA (Italy)
Mario Signorazzi, ALENIA (Italy)


Published in SPIE Proceedings Vol. 1583:
Integrated Optical Circuits
Ka Kha Wong, Editor(s)

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