Finisar recommends a 4-layer PCB with a solid ground plane, and thermal vias under the package to dissipate heat. A thermal pad on the bottom of the package should be connected to a heat sink or a thermal management system.
Ensure that the module is operated within the recommended temperature range (-40°C to 85°C), and that the PCB is designed to minimize thermal gradients. Also, ensure that the module is properly soldered and that the thermal interface material is applied correctly.
The recommended input signal amplitude is 100 mVpp to 1000 mVpp, and the signal shape should be a non-return-to-zero (NRZ) format with a rise/fall time of 100 ps or faster.
Use an oscilloscope to verify the input signal amplitude and shape, and check the module's output signal for any signs of distortion or noise. Also, verify that the module is properly soldered and that the thermal interface material is applied correctly.
Store the module in a dry, cool place, away from direct sunlight and moisture. Handle the module by the edges, avoiding touching the electrical contacts or optical components. Use an anti-static wrist strap or mat when handling the module.
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FTLF1319F1HTL Overview
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