G657 B3 Ultra-Bendable Single-Mode Optical Fiber

G.657.B3 is a single-mode optical fiber built for tight spaces. It features a precise refractive index profile that stops macro-bending loss. You can bend this fiber down to a 5mm radius without dropping the signal.

We manufacture this fiber for high-density networks and FTTH deployments. It provides reliable optical transmission in compact indoor environments and harsh outdoor conditions.

Core Competitive Advantages

For Procurement Managers and Network Engineers

• Tighter Routing: The 5mm bend radius beats standard G.657.A2 fibers (7.5mm). You can route cables through sharper corners in compact data centers and complex buildings.
• Direct Cost Savings: Priced at approximately 260 RMB/KM. You save roughly 60 RMB per kilometer compared to legacy brands like FiberHome. This lowers your project CAPEX immediately.
• Harsh Environment Ready: The -60°C to +85°C rating guarantees performance. Install it in unconditioned industrial plants or fully exposed outdoor base stations without signal failure.
• Active Production & Supply: We are actively producing this B3 fiber for European and American markets. We accept orders starting at a 100 KM MOQ to keep your supply chain moving.