Optical Performance Monitoring: Advanced Techniques for by Calvin C. K. Chan

By Calvin C. K. Chan

This in-depth, precise reference offers for the 1st time a complete remedy of contemporary advances in optical functionality tracking. Written via prime specialists within the box, the booklet offers an summary of contemporary advancements within the zone and the function of OPM in destiny optical structures and networks. designated discussions of varied complicated strategies are supplied to demonstrate their rules. beneficial properties: provides the foundations and functions of complex OPM ideas, including a comparative review in their effectiveness in tracking person parameters, comparable to optical signal-to-noise ratio, chromatic dispersion, and polarization mode dispersion Explains the rules of some of the complex optical sign processing options and their purposes in OPM Examines the function and functions of OPM in optical networks, together with optical delivery networks, coherent optical structures, and long-haul optical transmission platforms Discusses the present methods of OPM within the worldwide general SDH/SONET This publication is perfect for technical pros and researchers who are looking to comprehend and review complicated thoughts in OPM and their impression at the sensible layout of next-generation optical structures and networks. offers an intensive and special dialogue of the most recent optical functionality tracking (OPM) recommendations and their functions, proposing a comparative research of every methodContains fine quality technical contributions from prime specialists, protecting either ideas and useful points of complicated OPM techniquesAddresses demanding situations and possibilities regarding OPM in next-generation reconfigurable optical structures and networks

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A) Parameter for monitoring OSNR. (b) Parameters for monitoring of CD. 18 (a) Diagram of the monitor based on delay-tap sampling. (b) Acquisition of two samples with relative delay Át. (c) Construction of delay-tap plot. 19 Two-tap plot constructed by sampling the constructive and destructive ports of the demodulator DI. 20 Diagram of phase-offset monitoring technique based on optical receiver and limiting amplifier. 21 Analysis of OPM techniques by type of monitored impairment. 1 Configuration of coherent receiver with balanced detector.

However, it is difficult to monitor and isolate PMD from CD since both of them cause pulse distortions and change the monitored information. , RF clock-tone power fading), making the monitored information ambiguous. Moreover, each of the optical impairments gives rise to different degrading effects for different data modulation formats. Note that the future challenge is to develop a simple and unique monitoring technique that can monitor each of the optical impairments simultaneously for any input data formats.

Recovery of the quadratic phase of H^CD(f), for example, of CD = 1000 ps/nm. Copyright # 2009 IEEE. Joint estimation for given CD = 1000 ps/nm and DGD varying from 0, 30 and 60–90 ps over a range of OSNR values between 12 and 24 dB (a) and estimation of pure CD over a wide range (b). The bars indicate the standard deviation of the estimation. Copyright # 2009 IEEE. Deviation mCD and biased error sCD in ps/nm of the mean value of estimated CD compared to given CD for combinations of CD and PDL. Copyright # 2009 IEEE.

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