1260nm-1620nm FWDM Filter Wavelength Division Multiplexer Ultra Low Insertion Loss

GRACYFIBER's high-performance filter-type wavelength division multiplexer (FWDM) is a core passive device specifically designed for FTTH (Fiber to the Home) networks that integrate GPON/XGS-PON and CATV. 

• GPON/XGS-PON ONU Modules: Integrated into optical network terminals, enabling lossless separation of bidirectional signals at different rates.

• CATV Optical Nodes: Perfectly overlay or extract analog/digital video signals in FTTH converged networks.

• BiDi (Single-Fiber Bidirectional) Transmission System: Improves the utilization rate of existing single-fiber transceiver links.

• Multimode/Single-Mode Fiber Capacity Expansion: Quickly expands link bandwidth without increasing physical fiber cable investment.

• Line Monitoring and Testing System: In conjunction with OTDR, introduces non-service wavelengths such as 1650 nm for online link testing.

FAQ

1: What tests are conducted before product shipment?

A: Before shipment, tests are conducted to confirm transmission/reflection insertion loss, isolation, ripple, PDL, return loss, directivity, center wavelength, end-face quality, appearance, and packaging reliability. This product is designed to address power budget and crosstalk issues in FTTH network upgrades and is suitable for access network projects with high requirements for low loss, high isolation, and batch consistency.

2: What are the warranty policy and after-sales support?

A: This product is ISO9001 and RoHS certified. If non-human-caused quality problems occur within the warranty period, we can provide parameter retesting, root cause analysis, repair, or replacement support. It is recommended to confirm complete specifications before placing an order, including transmission band, reflection band, fiber type, connector, package size, optical power, and application environment; the specific warranty period, RMA process, and scope of responsibility are subject to the formal quotation or purchase contract.