Optimization of duty-cycle of RZ signals and filter bandwidths for optically preamplified receivers

Ling Liu; Shiva Kumar

doi:10.1117/12.628398

13 October 2005 Optimization of duty-cycle of RZ signals and filter bandwidths for optically preamplified receivers

Ling Liu, Shiva Kumar

Proceedings Volume 5970, Photonic Applications in Devices and Communication Systems; 59702Q (2005) https://doi.org/10.1117/12.628398
Event: Photonics North, 2005, Toronto, Canada

Abstract

In this paper, we analyse the bit error rate reduction for return-to-zero coding with different duty cycle. It is shown that the optimal design of duty cycle of a given system lies in a compromise between spontaneous emission, intersymbol interferences and interchannel interference. We have carried out the semianalyitic simulations to find the dependence of optimum duty cycle on different system parameters. We found that the optimum duty cycle decreases as the channel spacing increases. For channels without ICI, BER is nearly a constant over a wide range of duty cycle as long as ISI is negligible.

Citation Download Citation

Ling Liu and Shiva Kumar "Optimization of duty-cycle of RZ signals and filter bandwidths for optically preamplified receivers", Proc. SPIE 5970, Photonic Applications in Devices and Communication Systems, 59702Q (13 October 2005); https://doi.org/10.1117/12.628398

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