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All-optical efficient wavelength conversion using silicon photonic wire waveguide

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6 Author(s)
Yamada, K. ; Microsyst. Integration Labs., Nippon Telegraph & Telephone Corp., Atsugi, Japan ; Fukuda, H. ; Tsuchizawa, T. ; Watanabe, T.
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We demonstrate efficient wavelength conversion using a four-wave-mixing (FWM) effect in a silicon photonic wire waveguide with spot size converters. Applying a continuously operated 160-mW pump, power density in the waveguide's core was increased up to around 430 MW/cm2, and the FWM effect was remarkably enhanced. Internal conversion efficiency obtained in an experiment was -10.6 dB. The efficiency was significantly limited by the free-carrier absorption effect.

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Photonics Technology Letters, IEEE  (Volume:18 ,  Issue: 9 )