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.
Highlights
J Nuño, M Gilles, M Guasoni, Christophe Finot, Julien Fatome
All-optical sampling and magnification based on XPM-induced focusing
In most of these techniques, an ultrashort pulse train acts as an optical gate and the basic physical phenomena under use include four-wave mixing (FWM)[10], cross-phase modulation (XPM)[11], nonlinear polarization rotation[13] and Raman soliton self-frequency shifting[14]
Summary
J Nuño, M Gilles, M Guasoni, Christophe Finot, Julien Fatome. All-optical sampling and magnification based on XPM-induced focusing. J Nuño, M Gilles, M Guasoni, Christophe Finot, Julien Fatome
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