Degenerate four-wave mixing (DFWM) in azo-dye polymers is interesting and may be useful for many applications, because it allows achieving phase conjugation of the signal wave using low-intensity writing and reading beams with the same frequency.

Four-wave mixing (FWM) is a phenomenon that must be avoided in DWDM transmission, but depending on the application it is the basis of important sec-ond-generation optical devices and optical device measurement technology. This paper discuss-es the theory of FWM, and then introduces one of its applications --a broadband all-optical simul-

Four-wave mixing (FWM) is an intermodulation phenomenon in nonlinear optics, whereby interactions between two or three wavelengths produce two or one new wavelengths. It is similar to the third-order intercept point in electrical systems.

Jan 1, 2000 · This paper discuss- es the theory of FWM, and then introduces one of its applications --a broadband all-optical simul- taneous wavelength converter developed using a high nonlinearity dispersion...

In this paper, we consider the problem of intracavity degenerate four-wave mixing (DFWM): an electromagnetic cavity resonant at three frequencies ω0 and ω0 ω , in which a third-order (χ(3)) + ω in the presence of an input pump at ω0.

Nov 1, 2011 · In this paper, ultrafast time-resolved coherent degenerate four-wave-mixing (DFWM) spectroscopy is performed to investigate molecular dynamics in the gaseous phase. Laser pulses lasting for 40 fs are used to create and monitor different vibrational eigenstates of iodine at room temperature (corresponding to a low saturation pressure of about 35 ...

Jan 1, 2013 · FWM can take place in any material; it refers to interactions of the waves via a third-order nonlinear polarization. Degenerate four waves mixing (DFWM) can yield phase conjugation and is useful, for example, for correcting aberrations by using a phase conjugate mirror (PCM).

Degenerate four-wave mixing (DFWM) can yield phase conjugation and is useful, for example, for correcting aberrations by using a phase conjugate mirror (PCM). To understand what phase conjugation is, consider an electric field E ( r ,t) Re ( r )e , which has a spatial dependence A ( …

EGENERATE four-wave mixing (DFWM) and nearly degenerate four-wave mixing (NDFWM) have attracted considerable attention in nonlinear optics. DFWM has found several important applications in phase conjugation, extensively used in real-time holography and adaptive optics [I], …

The applications of Four-Wave Mixing (FWM) can be divided into three categories. First, the creation of a dynamic grating via a material excitation and the subsequent probing of the grating using another beam allow us to study the material excitation