All-optically tunable waveform synthesis by a silicon nanowaveguide ring resonator coupled with a photonic-crystal fiber frequency shifter

Abstract
A silicon nanowaveguide ring resonator is combined with a photonic-crystal fiber (PCF) frequency shifter to demonstrate an all-optically tunable synthesis of ultrashort pulse trains, modulated by ultrafast photoinduced free-carrier generation in the silicon resonator. Pump-probe measurements performed with a 50-fs, 625-nm second-harmonic output of a Cr:forsterite laser, used as a carrier-injecting pump, and a 1.50-1.56-μm frequency-tunable 100-fs soliton output of a photonic-crystal fiber, serving as a probe, resolve tunable ultrafast oscillatory features in the silicon nanowaveguide resonator response. © 2010 Elsevier B.V. All rights reserved.

Citation
Savvin, A. D., Melnikov, V. A., Fedotov, I. V., Fedotov, A. B., Perova, T. S., & Zheltikov, A. M. (2011). All-optically tunable waveform synthesis by a silicon nanowaveguide ring resonator coupled with a photonic-crystal fiber frequency shifter. Optics Communications, 284(6), 1652–1655. doi:10.1016/j.optcom.2010.09.049

Acknowledgements
This work was partially supported by the Russian Federal Science and Technology Program (contract nos. 1130 and 02.740.11.0223), the Russian Foundation for Basic Research (projects 08-02-92226, 10-02-91173, 09-02-12373, 09-02-12359, and 09-02-92119), and the Science Foundation Ireland National Access Programme (NAP 168).

Publisher
Elsevier BV

Journal
Optics Communications

DOI
10.1016/j.optcom.2010.09.049

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