In fiber-optic communication systems, long-distance optical modules, due to their high transmit optical power, are highly susceptible to damage to receiving devices when directly connected to shorter optical fibers. In a corner of the data center server room, rows of optical modules are working silently. This article analyzes the mechanisms of optical power overload, typical damage. Do you really need a 10km module for a 300m connection? Many customers unknowingly overspend by not matching transceiver distance with real needs. This article explains the key risks and engineering solutions for safe optical power. However, when it comes to deployment, one of the most frequent dilemmas is whether to choose long-range or short-range optical modules. Making the wrong choice could mean wasted budget, network instability, or performance bottlenecks.
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