To ensure that the optical module can adapt to this change, some reliability tests, such as temperature cycling test, temperature shock test, and thermal shock test, are used to simulate and evaluate the performance of the optical module under high and low temperature. To ensure that the optical module can adapt to this change, some reliability tests, such as temperature cycling test, temperature shock test, and thermal shock test, are used to simulate and evaluate the performance of the optical module under high and low temperature. Optical module, also known as optical transceiver module, is an important component of modern communication networks. It realizes the conversion between optical signals and electrical signals, allowing data to be transmitted through optical fibers at higher speeds and longer distances. According to. Outgassing determines the ability of devices under test to operate in a vacuum space environment, such as circuits inside satellites, without risk of contaminating the elements with which it is in close proximity. Collected Volatile Condensable Material (CVCM) < 0. The application environment of Carrier-grade optical modules becomes quite complex, and some new failure modes occur especially for new PAM4. ng needs. There are three key trends making a significant impact on the optical interconnect cosystem.