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Nonlinear-Error-Free Optical Quantization Using Dense Spectral Slicing
Takahiro KODAMA Ryosuke MATSUMOTO Akihiro MARUTA Tsuyoshi KONISHI Ken-ichi KITAYAMA
IEICE TRANSACTIONS on Communications
Publication Date: 2016/03/01
Online ISSN: 1745-1345
Type of Manuscript: PAPER
Category: Fiber-Optic Transmission for Communications
arrayed waveguide devices, nonlinear optical signal processing, nonlinear optics fibers,
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We numerically and experimentally demonstrate for the first time a novel all-optical quantization technique using dense spectral slicing with a specially designed arrayed waveguide grating for orthogonal frequency division multiplexed signals. By using a mode-locked laser diode with low jitter, the quantization technique can be achieved a high-speed and low-jitter operation. Both numerical and experimental results confirm the feasibility of 10 GSample/s, completely linear 3-bit step quantization for photonic analog to digital conversion. This optical quantization technique will be beneficial for ultra-high-speed optical communication using digital signal processing.