Extinction ratio tolerant filterless millimeter wave generation using single parallel MZM

This paper investigates the comparative analysis of optical system using different communication channels such as Optical Wireless Communication (OWC), Single Mode Fiber (SMF) and Free Space Optics (FSO). The comparative assessment involves analyzing these channels based on metrics such as Quality Factor (QF) and Bit Error Rate (BER) across various communication distances. It has been analyzed that Optical Wireless Communication channel provides wide coverage distance than Free Space Optics and Single Mode Fiber. It is found that despite the presence of fiber nonlinearities and attenuation, the signal can be effectively transmitted via Free-Space Optical (FSO) communication up to a distance of 8 km, maintaining an acceptable Bit Error Rate (BER) and Q-factor. Additionally, we use OWC and SMF channels to evaluate the Quality factor and bit error rate up to 30 km and 17 km, respectively.

Comparative performance of wavelength division multiplexing system using different optical communication channels

Dewra,

Sharma

2024

Simulative analysis of carrier suppressed return to zero based symmetrical compensated optical link

Singh,

Sarangal,

Singh

et al. 2024

Optical communication systems provide high data rates to fulfil users’ demands. In addition, the modulation format is essential to the system’s transmission quality and spectral efficiency. Furthermore, the effects of chromatic dispersion, which impair the performance and quality of transmitted signals, are mitigated using dispersion compensation techniques. In optical communication systems, dispersion compensation techniques are essential for preserving signal quality, increasing transmission distances, improving system performance, and offering network designers flexibility. These methods seek to improve signal quality and enable transmission at longer distances by reducing or eliminating the distortion brought on by dispersion. This paper uses a symmetrical compensation technique to analyze the performance of the CSRZ modulation format-based optical communication system. The research is conducted within a communication range of 150–350 km. The system is evaluated in terms of input power, filter order, and filter depth. The results indicate that the proposed system performed better at an input power of 4 dBm using a third-order filter and 60 dB filter depth.

Design and performance of WDM system for high-speed optical communication on different modulation formats

Singh,

Shekhara,

Hazareena

et al. 2024

In this paper, the performance analysis of the WDM (wavelength division multiplexing) system on the optical fiber transmission link is proposed. High data transmission is possible by implementing a WDM optical communication system using different modulation formats. Firstly, the WDM optical communication system is designed on an Optiwave simulation tool and distortion in the optical fiber by “eye pattern analysis” is analyzed. Secondly, the optical SNR of the proposed WDM optical communication system is studied. Further, the bit-error rate (BER) plot is studied and optimization techniques are applied to enhance the proposed system for long-haul communication. Furthermore, the BER plots are analyzed by varying the length of the fiber and applying different coding techniques like NRZ (non-return zero), RZ (return to zero), QAM (quadrature amplitude modulation) etc. using the Optiwave simulation tool. The results obtained in the Optiwave simulation tool are validated by theoretical implementation in the MATLAB tool.