100G SFP-DD 20km SMF Transceiver: 100G-SFP-DD-20

Our EDGEOPTIC 100G-SFP-DD-20 is multi-vendor compatible 100G SFP-DD dual-fiber optical module designed for 100 Gigabit Ethernet applications operating over single-mode fiber cabling. The 100G-SFP-DD-20 module operates with dual 1310nm wavelengths for transmission and reception, utilizing PAM4 (Pulse Amplitude Modulation 4-level) modulation across two lanes at 53.125 Gbps each to achieve aggregate 106.25 Gbps data rates. Our 100G SFP-DD 20km transceiver delivers high-density 100G connectivity optimized for extended campus and metropolitan network deployments requiring enhanced reach capabilities.

The transceiver utilizes EML (Electro-absorption Modulated Laser) technology for transmission and PIN photodiode for receiving. This optical configuration ensures a 7.4 dB guaranteed link budget, optimized for single-mode fiber applications requiring 100G bandwidth over extended distances. Over standard single-mode fiber, the transceiver reliably achieves 20 kilometers transmission distance, making it suitable for metropolitan area networks, inter-data center connectivity, and regional campus deployments. However, distance is just indicative parameter calculated for comfort of identification – eventually we calculate distance taking in account minimal optical budget and average attenuation of optical cabling in industry.

100G-SFP-DD-20 compatible module is hot-pluggable SFP-DD with duplex LC/UPC connectors as an optical interface. The electrical interface conforms to SFP-DD MSA (Multi-Source Agreement) specifications, 100GAUI-2 electrical interface, and 100G Lambda MSA standards, ensuring compatibility with standard SFP-DD host systems supporting multiple vendor equipment platforms. Our 100G SFP-DD 20km transceiver can be encoded to be compatible and successfully operate in different 80+ brands of equipment. The module incorporates host-based Forward Error Correction (FEC) support and integrated CDR (Clock and Data Recovery) functionality, critical for maintaining signal integrity in dual-lane PAM4 modulated systems over extended metropolitan distances.

The module features comprehensive DDM/DOM (Digital Diagnostic Monitoring) functionality providing real-time information including transmitted and received optical power levels for each lane, module temperature, bias current, and supply voltage. This diagnostic data are available via MSA-compatible EEPROM interface conforming to SFF-8472 specifications and enables monitoring of transceiver operational parameters. Operating within a 0 to 70°C temperature range with 3W maximum power consumption, the module maintains stable performance across diverse deployment environments from climate-controlled facilities to remote edge locations.

Standards compliance includes IEEE 802.3cu for 100 Gigabit Ethernet, along with SFP-DD MSA and 100G Lambda MSA specifications. The enhanced optical design with higher launch power and improved receiver sensitivity enables reliable 20km transmission while maintaining full compatibility with industry standards. The compact SFP-DD form factor provides double density compared to traditional QSFP28 modules, maximizing port utilization in space-constrained networking equipment. Our 100G SFP-DD 20km transceiver is CE/RoHS certified and compliant with Class 1 FDA and IEC60825-1 laser safety standards.

Typical applications are metropolitan area network rings, carrier access networks, inter-data center links, and distributed campus architectures requiring 100G bandwidth over extended single-mode fiber spans. The 20km reach capability bridges the gap between standard 10km modules and long-haul solutions, providing cost-effective connectivity for regional network deployments and disaster recovery sites. Because our focus is providing top quality service, we are performing serious quality checks before delivery of our products. As a result, we do optical parameter measurements, connector cleanness tests and SFP-DD transceiver EEPROM memory data validation tests.