Gracyfiber O-Band WDM Multiplexer 1260nm-1650nm O-Band Wavelength Division Multiplexer

GRACYFIBER's O-band wavelength division multiplexer series is a versatile optical multiplexing engine designed for precision testing of next-generation 5G fronthaul, data center interconnect (DCI), and 800G high-speed optical modules. This product line fully supports LWDM, MWDM, and DWDM architectures within its core operating window of 1260–1360 nm and innovatively integrates a dedicated 1550 nm (1525–1565 nm) monitoring port. With up to 16 channels of scalability and extremely high channel isolation, our O-band WDM modules significantly increase fiber capacity in FTTH and C-RAN architectures without the need for any active components, and provide extremely stable physical layer optical path support for reliability burn-in/HTOL testing of optical modules.

(Designed to overcome the challenges of high-speed optical interconnect testing and 5G fronthaul capacity bottlenecks)

Pain points addressed/value: Precisely covers subdivided bands from 1269.23 nm to 1341.5 nm, meeting multi-channel requirements from 2CH to 16CH. This provides network planners with great flexibility, enabling them to maximize the utilization of fiber resources and achieve smooth evolution according to different application scenarios (such as 5G MWDM fronthaul solutions or LAN-WDM module testing).

addresses key pain points/value: The insertion loss of the 8-channel module is as low as 2.8 dB, and even at full load of 16 channels, it is strictly controlled within 4.5 dB. Combined with high isolation of ≥30 dB for adjacent channels and ≥40 dB for non-adjacent channels, signal crosstalk between dense wavelengths is completely eliminated. This is crucial for precise testing of 800G per-lane Tx/Rx transmitters and receivers, ensuring the absolute purity of test data.

Pain Point Solved/Value Boost: A cleverly integrated Monitor port supporting the 1525~1565 nm band. Operations teams and test engineers can utilize this port to connect instruments for rapid fault analysis, real-time link monitoring, or OTDR diagnostics without interrupting core O-band service flows.

address key pain points/value: Fully compliant with Telcordia GR-1209/1221 standards, with directivity up to 50 dB. Supports stable operation in environments ranging from -5°C to 65°C (some customized models support -20°C to 70°C), perfectly meeting the stringent requirements of optical module HTOL (High Temperature Operating Life) testing laboratories and the extreme temperature variations of outdoor base stations.

1. 800G Optical Module Testing and Verification: Per-Lane 800G Tx/Rx signal separation, burn-in testing, and HTOL monitoring.
2. Rapid Failure Analysis & Debug: Precise disassembly and detection of multi-wavelength signals in laboratory environments.
3. 5G Fronthaul Networks: Perfectly matches the wavelength reuse requirements of MWDM/LWDM solutions in 5G C-RAN architectures.
4. Data Center Interconnect (DCI) and Legacy System Upgrades: Fully utilizes the available bandwidth of existing fiber in the O-band.
5. FTTH Broadband Expansion: Increases the downlink capacity of fiber-to-the-home nodes in passive environments.