For most people working in the fiber optic communications field, their experience with optical fiber involves using jacketed fiber optic cables. This includes network and data center infrastructure cabling, which may contain hundreds of fibers in each cable, as well as patch cables with fewer fibers used for connecting devices. Due to the multi-fiber nature of jacketed cables and network devices such as optical transceivers, which require a Tx/Rx fiber pair cabling connection, it's commonplace for many people to think of spooled bare optical fibers for network simulation testing and optical delay applications in a similar format. Additionally, since the fiber manufacturers provide maximum signal attenuation/loss specifications for a fiber, there is sometimes a misconception that the resulting performance will always be within that defined specification when using spooled and terminated bare optical fibers.