System analysis of WDM optically-assisted ADC

02/18/2000


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Table of Contents

System analysis of WDM optically-assisted ADC

Wavelength division demultiplexing (WDM) optically-assisted ADC in an n-channel system

The source and modulator electric field spectrum

Optical pulse output of multi-wavelength mode-locked laser

Combined LPF and detector frequency response

Reconstruction of the RF signal using DSP

System transfer function for one-pole RC LPF

System transfer function for 8-pole Butterworth LPF

System transfer function for 2-pole Butterworth LPF

Transversal filter and integrator system response

Practical transversal filter response

PPT Slide

Comparison of different filters

PPT Slide

Simulation results for the effect of jitter on ENOB and SNR

Simulation results for effect of detector shot-noise on SNR

Simulation results for effect of detector shot-noise on SNR

Simulation results for effect of detector shot noise and jitter on ENOB and SNR

Transversal filter shot-noise simulation for 5-channel system

Effect of frequency response mismatch in LPFs

Time-domain simulation result for noise analysis

Conclusions

Future work

Author: Payam Rabiei

Home Page: http://www.usc.edu/alevi

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