Specs: 4,500 ft SMF, underground bore, trenching, protective ducting, fusion splicing, OTDR testing. 90/ft; materials $4,050; labor $6,000-$12,000; permits and protection $1,000-$3,000; total $11,000-$22,000. Local rules may require permits for. The Underground Optical Cable Price is a standout piece in our Optical Fiber collection. Focus on optical fiber performance metrics, guaranteed by factory wholesale suppliers and famous brand OEM partnerships. Need help? Underground fiber optic cables are engineered for durability, performance, and longevity in a variety of challenging environments. On AliExpress, you can find options ranging from $1 to $10 per meter, depending on the specifications.