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Opt Lett. 2013 Mar 15;38(6):848-50. doi: 10.1364/OL.38.000848.

Phase regeneration of phase-shift keying signals in highly nonlinear hybrid plasmonic waveguides.

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Wuhan National Laboratory for Optoelectonics, Huazhong University of Science and Technology, Wuhan, China.


Phase regeneration of phase-shift keying signals is theoretically proposed, we believe for the first time, based on the efficient optical parametric amplification (OPA) process in a highly nonlinear symmetric hybrid plasmonic waveguide. This optimized stacked waveguide with nonlinear organic materials has a relatively low loss of about 0.005 dB/μm and an effective nonlinear OPA coupling coefficient up to 60 ps/m/W(1/2). The phase-recovery process was achieved in this waveguide within a length as short as 150 μm.

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