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Nonlinear Optics

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Definition: the part of optics dealing with optical nonlinearities and their applications

German: nichtlineare Optik

Category: nonlinear optics

How to cite the article; suggest additional literature

Nonlinear optics is a part of optics, dealing with various kinds of optical nonlinearities e.g. in nonlinear crystal materials or optical fibers. Nonlinear effects are those where e.g. twice the optical input intensities does not simply result in twice the output intensities. For low optical intensities, nonlinear effects become very weak. See the article on nonlinearities for more details and examples.

For applications, a field of particular importance is nonlinear frequency conversion, dealing with the generation of new optical frequencies in nonlinear processes. Another wide area is concerned with the effects of optical nonlinearities in various situations, e.g. for the propagation of intense ultrashort pulses in optical fibers, in supercontinuum generation, or for optical signal processing.

Nonlinear fiber optics does partly deal with nonlinear frequency conversion (e.g., with supercontinuum generation and fiber-optical parametric oscillators), but also with other uses of fiber nonlinearities – for example, with nonlinear amplification and signal processing.

Nonlinear interactions are also very important for many experiments in quantum optics.


[1]R. H. Stolen, “The early years of fiber nonlinear optics”, J. Lightwave Technol. 26, 1021 (2008)
[2]G. P. Agrawal, “Nonlinear fiber optics: its history and recent progress”, J. Opt. Soc. Am. B 28 (12), A1 (2011)
[3]E. Garmire, “Nonlinear optics in daily life”, Opt. Express 21 (25), 30532 (2013)
[4]R. L. Sutherland, Handbook of Nonlinear Optics, 2nd edn., Marcel Dekker, New York (2003)
[5]R. W. Boyd, Nonlinear Optics, Academic Press, 2nd edn., CRC Press, Boca Raton, FL (2003)
[6]G. P. Agrawal, Nonlinear Fiber Optics, 4th edn., Academic Press, New York (2007)
[7]A. V. Smith, SNLO software for simulating nonlinear frequency conversion in crystals, free download, http://www.as-photonics.com/snlo, from AS-Photonics
[8]A. V. Smith, Crystal nonlinear optics with SNLO examples, ISBN 978-0-692-40044-9, http://www.as-photonics.com/crystal-nonlinear-optics-book

(Suggest additional literature!)

See also: nonlinearities, nonlinear polarization, nonlinear crystal materials, nonlinear frequency conversion, supercontinuum generation, quantum optics, fiber optics
and other articles in the category nonlinear optics

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