2.1 NONLINEAR OPTICAL PHENOMENA Nonlinear optics (NLO) is the study of the interaction of intense electromagnetic field with materials to produce modified fields that are different from the input field in phase, frequency or amplitude. It is a vast area, and undoubtedly one of the most important areas of physics with a diverse range of applications. The field of nonlinear optics is understood t...

We analyze the modulation instability spectrum in a varying dispersion optical fiber as a function of the dispersion oscillation amplitude, and predict a novel sideband splitting into different sub-sidebands for relatively large dispersion oscillations. OCIS codes: (060.4370) Nonlinear optics, fibers; (190.4380) Nonlinear optics, four-wave mixing;

One of the two 7.6 m long straight sections in SPEAR3 has been divided into two short straights to provide places for two new small-gap insertion devices (IDs) [1,2]. A chicane generates an angular separation of 10 mrad between the two straights. A quadrupole triplet has been added in the center of the 7.6 m long chicane to create a ‘double-waist chicane’ optics with βy=1.6 m at the center of e...

Abstract Optical technologies have been widely used in information security owing to its parallel and high-speed processing capability. However, the most critical problem with current optical encryption techniques is that cyphertext linearly related plaintext, leading possibility one can crack system by solving a set of linear equations only two from same machine. Many efforts taken last decade...