## 4 Conclusions  
This paper presents a methodology for the implementation of a PON network with dynamic spectrum allocation and an RMSLA-WDM approach. This method allows for the use of frequency combs generated by MRRs and provides an optical source with multiple carriers and a different ONSR, which enables the use of the WDM technique for customer assignment based on the distance requirements of their geographic locations. This solution reduces the costs of these networks, using only eight lasers to achieve a flexible WDM grid. Moreover, our method allows for the assignment of a significant number of carriers by utilizing multiple MRRs, which helps to achieve the performance presented in this work. The use of MRRs helps to improve grid tuning as their carriers have high phase coherence, a factor that is difficult to achieve with individual lasers. On the other hand, we establish a reliable strategy for the generation of frequency combs with an adequate number of carriers using silicon nitride (Si\({}_{3}\)N\({}_{4}\)) MRRs with a radius of 113 \(\upmu\)m and 450 \(\upmu\)m. These paths allow us to obtain frequency combs with an FSR of 50 and 200 GHz. Thanks to the thermal control strategy and multiple MRRs, we generate smaller FSRs with more lines, allowing for FSRs of 12.5 GHz, 50 GHz, 100 GHz, and 200 GHz. We also design an RMSLA-WDM dynamic spectrum allocation algorithm that considers multi-level modulation formats such as QAM and carrier allocation with the optimization factor of using the smallest number of lines that can meet the transmission distance given by their OSNR. The proposed allocation algorithm in this work adapts to the dynamics of a network with 200 customers and variable bandwidths, making it a potential solution to the current needs in this field. The OSNR in the OFC plays a significant role in the efficiency and range of communication systems based on WDM and QAM. Reducing the noise level in the spectral components of the OFC becomes a critical factor in maximizing the performance of this approach. This is because reducing the noise allows for each transmitted wavelength to reach a greater distance and also enables more useful spectral components in the frequency comb. For successful future implementation, it is essential to address this challenge by employing optical techniques that minimize the noise in the frequency comb after its generation on the optical chip. This strategy will maximize the transmission capacity and range of communication systems, providing an effective and high-performance solution in optical communications. In future work, we propose using dual coupled microresonators to achieve deterministic soliton generation. This outcome will enable the maximization of the available carriers and a reduction in laser tuning time during the process. Additionally, we will experimentally validate our methodology by physically implementing all of its components. The dynamic spectrum allocation using optical frequency combs proposed in this paper has immense potential for quantum networking and communications. These devices enable the precise and controllable generation of multiple optical frequencies, facilitating the multiplexing of quantum signals at different wavelengths. This dynamic optical frequency allocation capability optimizes spectrum utilization and spectral efficiency in quantum networks while ensuring enhanced security in quantum information transmission by rendering unauthorized access even more challenging. Furthermore, optical microresonators  
Figure 15: (**a**) BBR histogram using eight lasers and FF method. (**b**) BBR histogram using eight lasers and RWA algorithm and eight lasers. offer high-frequency coherence and stability, which are essential factors in maintaining the integrity of the quantum properties of the transmitted states. In summary, this technology has the potential to enhance the scalability and performance of quantum networks by offering significant advantages in terms of speed, security, and quantum communication capacity [46; 47; 48].