Abstract

Nonlinear wave propagation was investigated experimentally in coupled waveguides by means of the cascaded nonlinearity in quasi-phase-matched second-harmonic generation. With a specially designed wave-vector-mismatch distribution along the propagation axis, cascading was optimized for low fundamental depletion. High-contrast, ultrafast all-optical switching with switching powers of tens of watts was observed.

© 1999 Optical Society of America

Observation of quadratic spatial solitons in periodically poled lithium niobate

B. Bourliaguet, V. Couderc, A. Barthélémy, G. W. Ross, P. G. R. Smith, D. C. Hanna, and C. De Angelis
Opt. Lett. 24(20) 1410-1412 (1999)

Engineerable compression of ultrashort pulses by use of second-harmonic generation in chirped-period-poled lithium niobate

M. A. Arbore, A. Galvanauskas, D. Harter, M. H. Chou, and M. M. Fejer
Opt. Lett. 22(17) 1341-1343 (1997)

Second-harmonic generation and cascaded nonlinearity in titanium-indiffused lithium niobate channel waveguides

Roland Schiek, Yongsoon Baek, and George I. Stegeman
J. Opt. Soc. Am. B 15(8) 2255-2268 (1998)

Singly resonant optical parametric oscillation in periodically poled lithium niobate waveguides

M. A. Arbore and M. M. Fejer
Opt. Lett. 22(3) 151-153 (1997)

Second-harmonic generation of an optical frequency comb at 1.55 ?m with periodically poled lithium niobate

B. Widiyatmoko, K. Imai, M. Kourogi, and M. Ohtsu
Opt. Lett. 24(5) 315-317 (1999)