[OPTICAL REVIEW Vol. 6, No. 2 (1999) 152-154]

Nonlinear Phase Shifts by Cascaded Optical Rectification and Linear Electro-Optic Effect

Sun Koo LEE and Choon Sup YOON*

Department of Physics, Korea Advanced Institute of Science and Technology, 373-1, Kusung-dong, Yusung-gu, Taejon, 305-701 Korea

(Received September 14, 1998; Accepted December 8, 1998)

Cascaded optical rectification and the consequent linear electro-optic effect have been investigated theoretically. Nonlinear phase shift of the fundamental beam caused by the cascading process was found to be proportional to the input intensity and the propagation length as in the Kerr effect. It is notable that the depletion of the fundamental optical pulse energy is negligible even for large nonlinear phase shifts.

Key words : cascaded second-order effect, nonlinear refractive index, nonlinear phase shift, optical rectification, second harmonic generation