100G DWDM Dual-Channel QSFP28 80km Transceiver: DWDM2-100G-Q28-80

Our EDGEOPTIC DWDM2-100G-Q28-80 is a multi-vendor compatible 100G DWDM Dual-Channel QSFP28 optical module designed for 100 Gigabit Ethernet applications operating over amplified single-mode fiber infrastructure. This innovative quad small form-factor pluggable transceiver utilizes advanced PAM4 (Pulse Amplitude Modulation 4-level) encoding with dual independent C-Band DWDM channels, delivering 103.125 Gbps throughput for high-capacity metro and regional DWDM network deployments requiring wavelength flexibility.

The DWDM2-100G-Q28-80 module operates using dual C-Band DWDM technology supporting ITU-T grid channels 13 through 60 with 100GHz spacing, providing two independent transmit and two independent receive wavelength channels. Our 100G DWDM Dual-Channel QSFP28 transceiver utilizes EML (Electro-absorption Modulated Laser) for transmission and PIN photodiode for receiving, with integrated CDR (Clock and Data Recovery) circuitry to maintain signal integrity at PAM4 data rates. The dual-channel architecture enables advanced wavelength routing and protection schemes within a single pluggable module.

Transceiver ensures an 11.5 dB guaranteed optical link budget, which determines the maximum transmission distance in conjunction with optical amplification. Over standard single-mode fiber with EDFA (Erbium-Doped Fiber Amplifier) and DCM (Dispersion Compensation Module), the transceiver can reach distances up to 80 kilometers. However, distance is just an indicative parameter calculated for comfort of identification – eventually we calculate distance taking into account minimal optical budget, amplifier gain, and dispersion characteristics of the optical cabling infrastructure.

DWDM2-100G-Q28-80 compatible 100G DWDM Dual-Channel module is a hot-pluggable QSFP28 with dual CS duplex connectors as the optical interface, providing separate connections for each wavelength channel pair. The electrical interface conforms to IEEE 802.3ba, 100G Lambda MSA, CAUI-4, QSFP28 MSA, and SFF-8665 specifications, ensuring compatibility with standard QSFP28 host systems. Our 100G DWDM Dual-Channel QSFP28 transceiver can be encoded to be compatible and successfully operate in different 80+ brands of equipment.

The module incorporates DDM/DOM (Digital Diagnostic Monitoring) functionality providing real-time information including transmitted and received optical power levels for both channels, module temperature, bias current, and supply voltage. The module features integrated FEC (Forward Error Correction) within the DSP, which is essential for PAM4 modulation to detect and correct bit errors, ensuring reliable transmission across extended amplified links. The module operates within a 0 to 70°C temperature range with maximum power consumption of 5W.

Standards compliance includes IEEE 802.3ba, 100GBASE-LR4, 100G Lambda MSA, CAUI-4, QSFP28 MSA, and SFF-8665 specifications. Our 100G DWDM Dual-Channel QSFP28 transceiver is CE/RoHS certified.

Typical applications include metro and regional DWDM networks requiring wavelength diversity, carrier backbone infrastructure with protection switching, high-capacity wavelength services, and data center interconnects requiring integration with existing DWDM transport systems. The dual-channel C-Band capability provides operational flexibility for advanced wavelength routing and network resilience designs.

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 cleanliness tests and QSFP28 transceiver EEPROM memory data validation tests.