What method is used to secure optical splices in a splice tray?

The correct method to secure optical splices in a splice tray is through the use of retaining clips. Retaining clips are specifically designed to hold the spliced fibers in place, ensuring they do not move or become misaligned. This is crucial for maintaining the integrity of the splice and ultimately ensuring optimal performance in fiber optic communication.

Retaining clips allow for easy access to the splices for future maintenance or repairs, while also providing protection from environmental factors that could potentially damage the spliced fibers. By securely holding the spliced fibers, they minimize the risk of breakage and signal loss, which is essential for the reliable operation of fiber optic systems.