Abstract
Abstract Using optical add–drop multiplexer/remover multiplexer (OADM), it is possible to add or remove wavelengths and change or route them through the various nodes and networks. At this moment, key problems in add–drop multiplexer (ADM) are the bandwidth, modulation format, and reuse wavelength. In this article, the Optisystem software simulation is used as a platform to design, test, and verify the method applied to the current work; the OADM is proposed based on the metro network to get distribution between nodes over a transmission link; OADM analysis was presented with four channels (193.1, 193.2, 193.3, and 193.4 THz) at total bandwidth of 1.6 Tb/s, none-return-to-zero (NRZ), and return to zero coding types. Experiment one shows that the average output power is −17.997 dBm, the average drop power is −17.997 dBm, and the average add power is −18.338 dBm, the average gain is −0.0429 dB, the average noise figure is 0 dB, the average power input signal is 10.679 dBm, the average of power output signal is 10.633 dBm, and the average output optical signal-to-noise ratio (OSNR) is 0 dB, However, the second experiment shows that the average output power is −24.238 dBm, the average drop power is −24.288 dBm, and the average add power is −24.753 dBm, the average gain is −0.0417 dB, the average noise figure is 0 dB, average power input signal is 7.691 dBm, average of power output signal is 7.677 dBm, and the average output OSNR 0 dB. The system supports four input channels, four add channels, four output channels, and four drop channels. The results are acceptable after three spans of Solitons fiber with 600 km length, 200 km for each span. Nonetheless, it is believed that it is well justified to adopt these schemes in the current optical network with a low cost for overall expenditure.
Highlights
Bajaj and colleagues [20] propose a work-based optical add–drop multiplexer/remover multiplexer (OADM) that consists of three parts: initially, the dense wavelength division multiplexing (DWDM) network is modeled in OptiSystem, and parameters such as optical signal-to-noise ratio (OSNR), jittering, chromatic dispersion, and bit error rate are obtained
Many series of the software simulations are performed to test this experiment as OADM at 600 km of Solitons fiber, 1.6 Tbps, four channels WDM based on RZ modulation format to the coded input data
The presentation of OADM is analyzed with four input channels (193.1, 193.2, 193.3, and 193.4 THz) at a total bandwidth of 1.6 Tb/s of NRZ and RZ coding types
Summary
The Internet as an industry is based mainly on fiber. This leads to a vast range of misunderstandings, misconceptions, and errors when working with fiber-optic networks. Due to the recent development of dense wavelength division multiplexing (DWDM) systems, it is possible to transmit hundreds of channels at a total capacity of more than terabits per second. Another technique has been attempted in conjunction with wavelength division. When used in conjunction with a multiplexer, it is evident that the spectrum contains two distinct wavelengths (or channels) This enables the separation and addition of wavelengths separately. It is colloquially referred to as an add–drop demultiplexer, but when an optical wavelength is defined, it is referred to as a multiplexer These units are small, monolithic integration will undoubtedly play a significant role in future designs of smaller, lighter, and more affordable devices [4]. The article is divided into four sections: one devoted to prior research on the topic, one to the proposal itself, one to a comparison, conclusion, and discussion, and one to two experiments
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