Photonic Chip-Based Simultaneous Multi-Impairment Monitoring for Phase-Modulated Optical Signals

We report the first experimental demonstration of simultaneous multi-impairment monitoring of phase-modulated 40 Gbit/s nonreturn to zero differential phase-shift keying (NRZ-DPSK) and 640 Gbit/s return-to-zero (RZ)-DPSK optical signals. Our approach exploits the femtosecond response time of the Ker...

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Bibliographic Details
Published in:Journal of lightwave technology 2010-11, Vol.28 (21), p.3176-3183
Main Authors: Vo, T D, Schröder, Jochen, Pelusi, M D, Madden, S J, Duk-Yong Choi, Bulla, D A P, Luther-Davies, B, Eggleton, B J
Format: Article
Language:English
Subjects:
Applied sciences
Chalcogenides
Circuit properties
Coding, codes
Dispersions
Electric, optical and optoelectronic circuits
Electronics
Exact sciences and technology
Femtosecond
Fiber nonlinear optics
Information, signal and communications theory
Integrated optics. Optical fibers and wave guides
Modulation, demodulation
Monitoring
Nonlinear optics
Nonlinearity
Optical and optoelectronic circuits
Optical communication
Optical fibers
Optical noise
optical performance monitoring (OPM)
optical planar waveguides
optical signal processing
Photonics
Radio frequencies
Radio frequency
Signal and communications theory
Spectrum analysis
Systems, networks and services of telecommunications
Telecommunications
Telecommunications and information theory
Transmission and modulation (techniques and equipments)
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Summary:We report the first experimental demonstration of simultaneous multi-impairment monitoring of phase-modulated 40 Gbit/s nonreturn to zero differential phase-shift keying (NRZ-DPSK) and 640 Gbit/s return-to-zero (RZ)-DPSK optical signals. Our approach exploits the femtosecond response time of the Kerr nonlinearity in a centimeter-scale, highly nonlinear, dispersion engineered chalcogenide planar waveguide to perform THz bandwidth RF spectrum analysis. The features observed on the radio-frequency (RF) spectrum are directly utilized to perform simultaneous group velocity dispersion and in-band optical signal-to-noise ratio (SNR) monitoring. We also numerically investigate the measurement accuracy of this monitoring technique, highlighting the advantages, and suitability of the chalcogenide rib waveguide.
ISSN:0733-8724
1558-2213
DOI:10.1109/JLT.2010.2083635