All-optical sampling and magnification based on XPM-induced focusing

Nuño, J., Gilles, M., Guasoni, M., Finot, C. and Fatome, J. (2016) All-optical sampling and magnification based on XPM-induced focusing. Optics Express, 24 (22), 24921-24929. (doi:10.1364/OE.24.024921).

Record type: Article

Abstract

We theoretically and experimentally investigate the design of an all-optical magnification and sampling function free from any active gain medium or additional amplified spontaneous noise emission. The proposed technique is based on the co-propagation of an arbitrary shaped signal together with an orthogonally polarized intense fast sinusoidal beating within a normally dispersive optical fiber. This process allows us to experimentally demonstrate a 40-GHz sampling operation as well as an 8-dB magnification of an arbitrary shaped nanosecond signal around 1550 nm in a 5-km long optical fiber. The experimental observations are in good agreement with numerical and theoretical analysis.

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