What kind of pulse does a fusion splice usually display?

A fusion splice typically displays a non-reflective pulse. This is because a fusion splice connects two optical fibers by melting them together, which creates a seamless transition between the fibers. This technique minimizes loss and reflection at the splice point, allowing light to pass through smoothly.

In contrast, reflective characteristics may appear in splices made through different methods, such as mechanical splices, where imperfections can cause some light to reflect back. Pulsating refers to a type of signal or effect that is typically not applicable in the context of a fusion splice. Signal could imply the pulse of light; however, it does not specifically address the nature of reflections or losses that occur at the splice point. Thus, a non-reflective characteristic is essential for the optimal performance of the splice, ensuring a consistent and strong transmission of optical signals.