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- Title
Design and analysis of a dense wavelength-division multiplexed integrated PON-FSO system using modified OOK/DPPM modulation schemes over atmospheric turbulences.
- Authors
Elsayed, Ebrahim E.; Kakati, Dhiman; Singh, Mehtab; Grover, Amit; Anand, Gagan
- Abstract
This paper reports the designing and numerical analysis of dense wavelength-division multiplexed (DWDM) transmission in an integrated passive optical network (PON)-free-space optics (FSO) system employing modified on–off keying (OOK)/digital-pulse position modulation schemes. The transmission performance has been analyzed under inter-channel crosstalk, noise errors, and weak and strong atmospheric turbulence effects for both modulation schemes. The DWDM system uses eight channels with a wavelength spacing of 0.8 nm, and each channel transmits a data rate of 2.5 Gbps for both the considered modulation formats. The results demonstrate that the DWDM channels are degraded due to inter-channel crosstalk, whereas the FSO transmission is limited as a result of atmospheric turbulence loss. The numerical results show that the proposed modulation scheme better than OOK modulation and exhibits 0.2–3 dB lower power penalty than OOK transmission.
- Subjects
ATMOSPHERIC turbulence; PASSIVE optical networks; MULTIPLEXING; FREE-space optical technology; NUMERICAL analysis
- Publication
Optical & Quantum Electronics, 2022, Vol 54, Issue 11, p1
- ISSN
0306-8919
- Publication type
Article
- DOI
10.1007/s11082-022-04142-4