Couplers & Adapters

Fiber optic couplers combine or divide optical signals between fiber paths and can be used in distribution, monitoring, test, and specialized optical systems. Unlike active networking modules, couplers operate passively, so their insertion loss becomes part of the system's optical budget. Selection should account for coupling ratio, wavelength range, connectorization, fiber mode, package type, and required insertion loss. ISP Supplies offers fiber couplers for telecom, test, access, and professional optical infrastructure.