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Self-Pumping Wavelength Conversion for DPSK Signals and DQPSK Generation Through Four-Wave Mixing in Highly Nonlinear Optical Fiber

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6 Author(s)
Zhou, G.T. ; Key Lab. of Optical Commun. & Lightwave Technol., Beijing Univ. of Posts & Telecommun. ; Xu, K. ; Wu, J. ; Cishuo Yan
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A novel scheme is proposed to achieve self-pumping wavelength conversion for two differential phase-shift keying (DPSK) signals at different wavelengths through four-wave mixing (FWM) effect in a highly nonlinear optical fiber. By changing the phase modulation depths to pi/2 for both of the DPSK signals, the two signals can be multiplexed to generate a differential quadrature phase-shift keying signal. The simulations and experimental results demonstrate the feasibility of phase manipulations for phase-shift keying signals through the FWM process

Published in:

Photonics Technology Letters, IEEE  (Volume:18 ,  Issue: 22 )

Date of Publication:

Nov.15, 2006

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