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This paper described the first results demonstrating the Super-Ring tuning concept applied to a 40 microresonator based TTD device, operating with the Balanced SCISSOR scheme. Tunable delay up to 515ps of a 20GHz BW RF photonic signal was shown, using only two drive voltages, with SFDR over 110dB.Hz2/3 for delays up to 300ps.
We describe a rigorous and physically transparent theory of enhancement of third order nonlinear optical processes achieved in plasmonic structures. The results show that while the effective nonlinear index can be enhanced by many orders of magnitude, due to high metal losses the most relevant figure of merit, the amount of phase shift per one absorption length remains very low.
We experimentally demonstrate coherent spectral phase encoded optical code-division multiple access that fully suppresses multiple access interference and speckle noise for the first time without the need for fast nonlinear time gating.
A novel OCDMA scheme uses spectral line pairing to generate signals suitable for heterodyne decoding. Both signal and local reference are transmitted in one optical fiber and a simple balanced receiver performs sourceless heterodyne detection.
The sensitivity of spectrally phase encoded OCDMA performance in an environment of chromatic dispersion plus polarization mode dispersion with several signature sequence families is investigated.
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