Analysis with gain and power for better coverage of FTTH network using WDM-PON architecture

Abstract

To fulfill the future demand for high data rate, novel research has been carried out which provides high-performance and secured communication from the optical line terminal (OLT) to the optical network unit (ONU). Results have been incorporated with simulations in optical simulation software called Opti-system. Gain and power estimation has been considered for long reach using wavelength division multiplexing passive optical network (WDM-PON). This method evolves with time and extends to mobile, local area, and metro area access networks. Finally, it has been predicted that the system data rate can reach (2.5 × 8) 20 gigabits per second (Gbps) up to a maximum of 80 km (km). The distance limit for larger data speeds (i.e., 5Gbps or 10 Gbps) was 80 km with a power of 30 dBm. A higher data rate of 40 Gbps per channel was achieved successfully at 30 km, i.e., a maximum data rate from 80 Gbps (10 × 8) to 320 Gbps (40 × 8) can be achieved with novel optimized WDM-PON architecture. Bit error rate (BER), quality (Q) factor, and eye height have limited within the acceptable range as per international telecommunication union (ITU) standards to achieve and fulfill the future demand of 5G (generation) or 6G-based applications at the last mile.

Improved passive optical network RoF system based vertical cavity-surface emitting laser (VCSEL) optical source external modulation

“…Wavelength division multiplexing (WDM) along with cascade fiber Brag grating were used for reduction in spectral width of a transmitter to achieve a maximum system performance [8]. Therefore, passive optical network schemes such as wavelength division multiplexing (WDM) have great futures in optical fiber communication systems for increasing system capacity [9, 10], high bandwidth [11,12], cost-effective configurations, and sufficient level of performance by utilizing optical amplifiers [13,14]. Integrating WDM in PON will be an innovative and scalable broadband access technology RECEIVED…”

“…One common application of WDM PON is to provide high coverage fiber to the home facilitation. Researchers in [12] has demonstrated a total of 80 Gbps data transmission using a 8 -port WDM PON system over a single mode optical fiber up to 30 km . In WDM techniques, several optical subcarriers including different wavelengths are multiplexed through WDM's channels and transmitted over one optical fiber simultaneously and independently to each other without interference [17].…”