Temperature Cycling Test of Optical Module
This article presents a power cycling setup based on optical fibers to measure the power module's chips junction temperature during operation under different loading conditions. A Co-Packaged Optics thermal cycle test chamber is a highly specialized environmental testing system designed to simulate repeated temperature stress conditions that CPO assemblies experience during real-world operation. They integrate highly temperature-sensitive devices such as lasers (VCSEL/DFB), detectors (PIN/APD), driver ICs, and TIAs. As data centers evolve toward 400G/800G and 5G front-haul and CPO (co-packaged optics) advance rapidly. It realizes the conversion between optical signals and electrical signals, allowing data to be transmitted through optical fibers at higher speeds and longer distances.
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