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Optical Module Model Parameter Comparison Table

Optical modules can be compared across form factor, connector type, data rate, wavelength, transmitter/receiver characteristics, power budget, and monitoring capabilities. Key Parameters ComparisonParameterDescriptionTypical Values / NotesForm FactorPhysical size and shape of the moduleSFP, SFP+, SFP28, QSFP+, QSFP28, OSFP; determines switch/port compatibility Connector TypeInterface to fiber cableLC Duplex, SC Duplex, MPO/MTP; must match patch cables Transmission RateMaximum supported data rate1G, 10G, 25G, 40G, 100G, 400G; PON modules: 1. 25G (EPON/GPON), 10G (10GEPON/XG-PON) WavelengthLight color used850nm, 1310nm, 1550nm; affects fiber type (multimode/singlemode) and distance Transmitter TypeLaser technologyVCSEL (multimode), DFB/EML (singlemode); affects cost, power, and distance Receiver TypePhotodetector technologyPIN photodiode, APD; impacts sensitivity Transmitter Power (Tx)Output optical powerMeasured in dBm; must be within receiver input range Receiver SensitivityMinimum detectable optical powerMeasured in dBm; lower (more negative) indicates better sensitivity Power BudgetDifference between Tx power and receiver sensitivityMust exceed total link loss (cable + connectors) Receiver Saturation / OverloadMaximum optical power receiver can handleAvoids signal distortion Extinction Ratio (ER)Ratio of '1' bit power to '0' bit powerHigher ratio improves signal quality Modulation FormatData encoding methodNRZ, PAM4; affects bandwidth efficiency Monitoring / DiagnosticsReal-time monitoring of module parametersDDM/DOM: Tx/Rx power, temperature, supply voltage; essential for proactive maintenance PON-Specific ParametersFor GPON/EPON/XG-PON modulesTransmission power, reception power, reception sensitivity, overload optical power; standards: IEEE 802.

3ah, 802. 3av, ITU-T G. 984, G.

987 Environmental & ReliabilityOperating conditionsTemperature range, humidity, mechanical durability; affects lifespan Notes on Module SelectionCompatibility: Ensure form factor and connector type match your network equipment. Performance: Choose modules with appropriate transmission rate, wavelength, and power budget for your link distance. Reliability: Consider environmental tolerance and receiver sensitivity to maintain stable operation.

Cost-

Effectiveness: Balance features with budget; multimode VCSEL modules are generally lower cost than singlemode DFB/EML modules. Monitoring: DDM/DOM support is recommended for proactive network management.

PO

N Modules: Select based on upstream/downstream rates and standard compliance (EPON, GPON, XG-PON) for optical access networks. This table provides a structured overview to compare optical modules across multiple specifications, helping network engineers and planners make informed decisions for deployment.

Optical Module Model Parameter Comparison Table

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Technical note

This reference is intended for preliminary fiber and communications infrastructure research. Optical interface, fiber type, port or core capacity, electrical input and output, enclosure protection, cooling, installation limits and applicable standards must be verified for the specific project.

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