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Proposal for a novel and simple WDM NRZ-DPSK system |
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| Authors: | Yu YU Xinliang ZHANG Jose B. ROSAS-FERNANDEZ Dexiu HUANG Richard V. PENTY Ian H. WHITE |
| Affiliation: | 1. Wuhan National Laboratory for Optoelectronics,Huazhong University of Science and Technology,Wuhan 430074,China;Centre for Photonic Systems,Electrical Engineering Division,Engineering Department,University of Cambridge,Cambridge CB3 0FA,UK 2. Wuhan National Laboratory for Optoelectronics,Huazhong University of Science and Technology,Wuhan 430074,China 3. Centre for Photonic Systems,Electrical Engineering Division,Engineering Department,University of Cambridge,Cambridge CB3 0FA,UK |
| Abstract: | A novel and simple non-return-to-zero differential phase shift keying (NRZ-DPSK) wavelength division multiplexing (WDM) system, which can simultaneously demultiplex and demodulate multiple wavelengths, is proposed and investigated in this paper.The phase-to-intensity demodulation principle is based on detuned filtering, which is achieved by using a single commercial array waveguide grating (AWG) in our scheme.By properly choosing appropriate AWG channels at the transmitter, the AWG at the receiver can act as both the demultiplexer and the demodulator of the DPSK signals.Simulations at 10, 20, and 40 Gbit/s show good flexibility and performance for the proposed system. |
| Keywords: | non-return-to-zero differential phase shift keying (NRZ-DPSK) wavelength division multiplexing (WDM) array waveguide grating (AWG) demodulation filtering |
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