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2021 | 152 | 27-38
Article title

Analysis of CSRZ and CSNRZ Coding for DQPSK and OQPSK Transmitter Configurations for Optical Microwave Generation Signals Based on Stimulated Brillouin Scattering

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Abstracts
EN
The use of Carrier Suppressed Non-Return to Zero (CSNRZ) and Carrier Suppressed Return to Zero (CSRZ) modulation formats in Dense Wavelength Division Multiplexing (DWDM) channels at 1 Gb/s and 10 Gb/s is investigated. The results of simulated analysis using Differential Quadrature Phase Shift Keying (DQPSK) and Offset Quadrature Phase Shift Keying (OQPSK) formats are presented. We demonstrate that Stimulated Brillouin Scatteriring (SBS) is a major contribution of the back-scattering signal. At bit rate of 1 Gb/s and 10 Gb/s, CSRZ-OQPSK modulation format has a low threshold for SBS signal generation. For a data rate of 1 Gb/s, high SBS threshold of 19.76 dBm for CSRZ-DQPSK is recorded. The results can be used to suppress SBS in high power lasers which could be useful in high bit rate signal transmission.
Discipline
Year
Volume
152
Pages
27-38
Physical description
Contributors
  • University of Eldoret, Physics Department, Laser and Fibre Optics Research Group, P.O Box 1125, Eldoret-30100, Kenya
author
  • University of Eldoret, Physics Department, Laser and Fibre Optics Research Group, P.O Box 1125, Eldoret-30100, Kenya
author
  • University of Eldoret, Physics Department, Laser and Fibre Optics Research Group, P.O Box 1125, Eldoret-30100, Kenya
author
  • University of Eldoret, Physics Department, Laser and Fibre Optics Research Group, P.O Box 1125, Eldoret-30100, Kenya
References
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  • [12] Vilnrotter, V. A., & Lee, D. K. (2017). Mitigation of Discrete Spectral Components in Filtered BPSK and OQPSK Signals. The Interplanetary Network Progress Report, 42, 208
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Document Type
article
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YADDA identifier
bwmeta1.element.psjd-52ba9091-f865-497b-8d5e-3401915b9207
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