Key parameters include center wavelength, transmitter output power (Tx), receiver sensitivity (Rx), and the optical budget (Tx–Rx margin). The optical budget must exceed total link loss plus a safety margin to ensure reliable performance. Transmitter power characterizes the average optical power output from the laser under rated conditions, while receiver sensitivity indicates the minimum. The core technical parameters of optical modules include: transmission rate, encapsulation, transmit optical power, receive sensitivity, transmission distance, center wavelength, optical interface type, operating temperature, maximum power consumption, etc. Let's introduce them one by one. These modules, including SFP, SFP+, and SFP28, are widely used in enterprise networks, data centers, and carrier-grade deployments. Optical modules are crucial for today's communication systems as they convert electrical signals into light signals for rapid data transfer.
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