Abstract
A widespread interest in all-optical networks for telecommunications has generated a great deal of activity towards approaches for efficient channel shifting in systems based on wavelength-division-multiplexing (WDM). A key issue, namely the possibility of transferring an incoming stream of data from a given channel or wavelength to another, has been addressed using several techniques ranging from gain saturation in semiconductor amplifiers [1] to four-wave-mixing [2] to parametric generation [3]. Since available bandwidth, transparence to the modulation format, possibility of gain and amount of crosstalk are important characteristics of such a wavelength shifter, parametric processes are considered rather appealing. With the advances in periodically poled crystals for efficient second-harmonic-generation (SHG) and difference frequency generation (DFG) [4], a quadratic approach in guided-wave configurations appears quite affordable in terms of required powers.
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© 1999 Springer Science+Business Media Dordrecht
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Gallo, K., Assanto, G., Stegeman, G.I. (1999). A Lithium Niobate Quadratic Device for Wavelength Multiplexing around 1.55µm. In: Boardman, A.D., Pavlov, L., Tanev, S. (eds) Advanced Photonics with Second-Order Optically Nonlinear Processes. NATO Science Series, vol 61. Springer, Dordrecht. https://doi.org/10.1007/978-94-007-0850-1_7
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DOI: https://doi.org/10.1007/978-94-007-0850-1_7
Publisher Name: Springer, Dordrecht
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