Abstract

An optical waveguide phase modulator has been fabricated on X-cut LiNbO₃ by using proton exchange in benzoic acid. The phase modulator was operated as a serrodyne optical-frequency translator with shifted-signal to image-signal discrimination of 52 dB for a 4-MHz frequency shift. The amplitude of the sawtooth driving signal was 10 V peak to peak. Application of a de bias voltage of either polarity was found to cause a substantial reduction in transmitted-light intensity.

© 1982 Optical Society of America

Stable low-loss proton-exchanged LiNbO₃ waveguide devices with no electro-optic degradation

P. G. Suchoski, T. K. Findakly, and F. J. Leonberger
Opt. Lett. 13(11) 1050-1052 (1988)

Characterization of proton-exchanged waveguides in MgO:LiNbO₃

M. Digonnet, M. Fejer, and R. Byer
Opt. Lett. 10(5) 235-237 (1985)

Optical waveguides in LiTaO₃ formed by proton exchange

W. B. Spillman, N. A. Sanford, and R. A. Soref
Opt. Lett. 8(9) 497-498 (1983)

Characterization of α-phase soft proton-exchanged LiNbO₃ optical waveguides

Yu. N. Korkishko, V. A. Fedorov, E. A. Baranov, M. V. Proyaeva, T. V. Morozova, F. Caccavale, F. Segato, C. Sada, and S. M. Kostritskii
J. Opt. Soc. Am. A 18(5) 1186-1191 (2001)

Secondary-ion mass spectroscopy characterization of proton-exchanged LiNbO₃ waveguides

N. A. Sanford and W. C. Robinson
Opt. Lett. 10(4) 190-192 (1985)