Optisystem 11 [PATCHED] Crack
joidenalpeaSignals in the transmission of optical fiber links are subject to various transmission damages. These damages include fiber loss, spontaneous radiation noise of optical amplifiers, chromatic dispersion, polarization mode dispersion, and nonlinear effects. Distorted waveforms reduce the quality of the signal and seriously affect the transmission performance of fiber optic communication systems [3].
Optisystem 11 [PATCHED] Crack
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Traditional fiber optic transmission systems often use dispersion-compensating fibers, polarization controllers, and non-chirped fiber Bragg grating devices to compensate and offset these damages. In the coherent detection system, DSP can be used to compensate in the digital domain, which reduces the system cost and greatly improves the flexibility of the system. It can effectively solve the deterioration caused by these damages and improve the coherent detection communication system Transmission performance.
The received optical signal is divided into two X and Y optical signals with orthogonal polarization after passing through the polarization beam splitter. The demodulation process for them is the same. The coherent detection process is analyzed with demodulation in X polarization state [4].
The local oscillator light source at the receiving end obtains two X and Y signals in the same polarization direction as the received signal after passing through the polarization beam splitter. The X polarization state local oscillator signal and the received X polarization state optical signal are performed in an 90 mixer Mixing, its structure is shown in Figure 2.
Among them, P X , ω X , and φ X are the power, angular frequency, and phase of the received optical signal, and P X L O , ω X L O , and φ X L O are the power, angular frequency, and phase of the optical signal of the local oscillator light source, respectively.
It can be seen from the above theoretical derivation that the electrical signal obtained after coherent detection includes the amplitude, frequency and phase information of the received optical signal. After sampling by the ADC, the electrical signal becomes a digital signal and enters the subsequent digital domain for processing [4].
Optisystem is an optical communication system design software developed by Optiwave, with a real device library and a powerful simulation environment. This paper is based on Optisystem 15 and builds a 100 Gbit/s rate DP-QPSK modulation format coherent optical transmission system simulation model using the optical device module built into its software. The structure of the system is shown in Figure 3.
This paper introduces the OptiSystem software as an alternative to support the Optoelectronics and Fiber Optics laboratory in Universiti Tenaga Nasional (UNITEN). In recent years, communication engineering has been focusing on wireless technology and optical communication to achieve seamless and high-speed connectivity. Hence, this paper presents the advantages and effects of implementing e-learning in this elective subject to complement the learning process in order to produce a high quality telecommunication engineer in the field of Optical Communication.
Problem statement: This study highlight on restoration scheme proposed against failure in working line at the drop region for Fiber-To-The Home (FTTH) with a Passive Optical Network (PON). Whereas PON is a system that brings optical fiber cable and signals all or most of the way to the end user. In this study we highlighted the issue on survivability scheme against failure which is focused scattered residence architectures. Approach: Two type of restoration scheme is proposed by means of linear protection (tree) and migrate protection (ring). Our proposal scheme is inexpensive and applicable to any residence architecture (ordered placement and scattered placement). The advantage of this scheme is the failure at fiber line can be recovered until two levels to make sure the optic signal flow continuously. FTTH based network design is simulated by using OptiSystem 7.0 in order to investigate the power output and BER performance at each node in the tree and ring protection scheme in scattered placement to prove the system feasibility. Results: The simulation analysis for output power in a linear protection path produced almost same output power for all optical nodes regardless of the position and situation of the node. In linear protection, signal is split by optical splitter and did not having loss of power at each node. Thus the percentage adjustment on the coupling is obtained where; the average output power measured at the receiver is at -28.4206 dBm. While the signal for ring path is optimized by adjusting the loss ratio (n%) and transmit it (1-n%) in the optical coupler. Also found that; an average output power is -23 dBm only. A simulation of distance accessibility is increased with the increasing of sensitivity that used for the linear path and ring path. Conclusion: This study suggests the migration of tree to ring topology to enable the signal flow continuously in the case of failure occurs specifically in random or scattered placement topology. Our proposal is the first reported up to this time in which the upstream signal flows in anticlockwise in ring topology when the restoration scheme activated. 75035a25d1