25G Fronthaul LWDM SFP28 20km Transceiver: LWDM-25GFH-SFP28-20I

Our EDGEOPTIC LWDM-25GFH-SFP28-20I is a multi-vendor compatible 25G Fronthaul LWDM SFP28 dual-fiber optical module designed for extended-reach LAN wavelength-division multiplexed mobile fronthaul applications in 5G and LTE network deployments. Supporting 12 LWDM channels in the 1260-1360nm wavelength range with reach up to 20 kilometers, this transceiver enables high-capacity fronthaul connectivity across larger metropolitan networks while maintaining the cost advantages of O-Band wavelength multiplexing technology.

The LWDM-25GFH-SFP28-20I module transmits on selectable LWDM wavelengths across channels 269-318 and receives across the 1260-1360nm LWDM grid. The transceiver supports data rates from 9.83 to 25.78 Gbps, enabling compatibility with various CPRI (Common Public Radio Interface) options including CPRI Option 7 at 9.830 Gbps, Option 8 at 10.138 Gbps, Option 9 at 12.165 Gbps, and Option 10 at 24.33 Gbps. Host-based Forward Error Correction support enhances signal integrity across extended multiplexed fronthaul links.

Our 25G Fronthaul LWDM SFP28 extended-reach transceiver utilizes EML (Electro-absorption Modulated Laser) technology for transmission and PIN photodiode for signal reception. The EML transmitter provides superior signal quality and enhanced extinction ratio compared to DML-based alternatives, essential for maintaining reliable wavelength multiplexing performance over longer distances. The module ensures a 20 dB guaranteed optical link budget, significantly higher than standard 10km variants, enabling reliable transmission over 20 kilometers of single-mode fiber when deployed with appropriate LWDM multiplexing equipment. The transmitter operates within a wavelength bandwidth of 2.1nm (LAN WDM) with launch power ranging from 0 dBm to 7 dBm. The receiver sensitivity ranges from -14 dBm to 0 dBm with overload protection at 0 dBm.

The LWDM-25GFH-SFP28-20I compatible 25G Fronthaul LWDM module is a hot-pluggable SFP28 transceiver featuring duplex LC/UPC connectors as the optical interface. The electrical interface conforms to SFF-8431, SFF-8432, and SFP28 MSA (Multi-Source Agreement) specifications, ensuring compatibility with standard SFP28 host systems across multiple vendor equipment platforms. Our 25G Fronthaul LWDM SFP28 extended-reach transceiver can be programmed for compatibility with various network equipment manufacturers supporting LAN wavelength-multiplexed fronthaul infrastructure.

The module incorporates DDM/DOM (Digital Diagnostic Monitoring) functionality providing real-time operational parameters including transmitted and received optical power levels, module temperature, bias current, and supply voltage. This diagnostic data is accessible via SFF-8472 compliant EEPROM interface, enabling continuous monitoring of transceiver health in mission-critical multiplexed fronthaul environments. Maximum power consumption is 2.5W.

The transceiver operates within a commercial temperature range of 0 to 70°C, suitable for controlled indoor installations typical of central office and data center environments. Standards compliance includes 25GBASE-LR specifications. The module is CE marked and RoHS compliant.

Typical applications include extended-reach 5G fronthaul aggregation across metropolitan areas, C-RAN architectures requiring moderate wavelength density over longer fiber spans, LWDM-based metro fronthaul networks connecting distributed cell sites to centralized baseband processing, and mobile infrastructure deployments where the balance between channel count, reach, and cost-effectiveness favors LAN WDM technology over DWDM alternatives.

Because our focus is providing top quality service, we perform comprehensive quality checks before delivery of our products. As a result, we conduct optical parameter measurements, connector cleanliness tests, and SFP28 transceiver EEPROM memory data validation tests to ensure reliable operation in your fronthaul network.