The rapid expansion of fiber-optic networks represents a critical infrastructure challenge balancing technological advancement with economic sustainability. This study examines the multifaceted effects of fiberoptic network expansion while addressing the inherent challenges of high infrastructure costs. Through a mixed-methods approach analyzing data from 2020-2024, this research investigates cost management strategies, deployment models, and economic impacts across diverse geographical contexts. Findings reveal that while initial infrastructure costs remain substantial, ranging from $30,000 to $80,000 per mile, innovative financing models and technological advances have reduced total cost of ownership by approximately 35% over the study period. The research demonstrates that publicprivate partnerships, dig-once policies, and shared infrastructure models significantly mitigate cost barriers while accelerating deployment. Results indicate that regions implementing comprehensive cost management strategies achieved 47% faster deployment rates and 28% lower persubscriber costs compared to traditional approaches. This study contributes to understanding optimal strategies for balancing network expansion objectives with financial sustainability, providing actionable insights for policymakers, networkoperators,andinfrastructure investors.