Topic
Four-wave mixing
About: Four-wave mixing is a research topic. Over the lifetime, 7530 publications have been published within this topic receiving 112702 citations.
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TL;DR: In this paper, the first degenerate four-wave mixing was observed inside a planar waveguide with reflectivities near one percent in a single mode waveguide fabricated by ion exchange in a sample of semiconductor-doped glass.
Abstract: We report the first observation of efficient degenerate four‐wave mixing in a planar waveguide. Four‐wave mixing reflectivities near one percent were seen inside a single mode waveguide fabricated by ion exchange in a sample of semiconductor‐doped glass.
53 citations
TL;DR: In this paper, the authors describe frequency-domain spectroscopy studies of glasses doped with CdS1−xSex using low-power cw tunable dye lasers and show a narrow resonance (4.4 kHz at room temperature) in the backward nearly degenerate four-wave mixing spectrum.
Abstract: We describe frequency-domain spectroscopy studies of glasses doped with CdS1−xSex using low-power cw tunable dye lasers. The results show a narrow resonance (4.4 kHz at room temperature) in the backward nearly degenerate four-wave mixing spectrum, which we believe is determined by the phonon-mediated inverse lifetime of a deep level trap involved in the nonlinear response.
53 citations
TL;DR: Degenerate four-wave mixing in the saturable gain of a flash-lamp-pumped Nd:YAG amplifier has been investigated and multipassing the gain medium has a dramatic effect on the efficiency of the process.
Abstract: Degenerate four-wave mixing in the saturable gain of a flash-lamp-pumped Nd:YAG amplifier has been investigated. Three different geometries are examined in which the probe beam experiences (a) one pass, (b) two passes, and (c) four passes of the four-wave interaction region. It is found that multipassing the gain medium has a dramatic effect on the efficiency of the process, with a phase-conjugate reflectivity of 2500 and a conjugate energy extraction efficiency of greater than 200% demonstrated.
52 citations
TL;DR: In this paper, a new technique for mapping the distribution of the zero-dispersion wavelength in a span of optical fiber is described, which is based on four-wave mixing of short pulses.
Abstract: We describe a new technique for mapping the distribution of the zero-dispersion wavelength in a span of optical fiber. With this technique, which is based on four-wave mixing of short pulses, we obtained a spectral accuracy of /spl plusmn/0.2 nm and a spatial resolution of 700 m. Theoretical analysis agrees well with experimental results and points to an order of magnitude improvement in spatial resolution using shorter pulses. Spatial resolutions less than 100 m may be necessary because we find, by destructive measurements, variations in lambda-zero by as much as 0.5 nm over spans of 500 m.
52 citations
TL;DR: In this article, it was shown that if sum or difference frequency generation or four-wave mixing occurs, the response to left and right circularly polarized light should be different in an optically active medium.
Abstract: It is shown that, in an optically active medium, if sum or difference frequency generation or four‐wave mixing occurs, the response to left and right circularly polarized light should be different. Similar effects are studied where, in analogy to the Faraday effect, the optical activity is induced by an external static magnetic field.
52 citations