1310B

1310B refers to a specific wavelength of light, commonly used in fiber optic communication systems. This wavelength falls within the infrared spectrum, and its selection for telecommunications is due to a balance of factors including attenuation in optical fibers and the availability of suitable light sources and detectors.

In fiber optics, different wavelengths of light are used to transmit data, with each wavelength experiencing varying levels of signal loss (attenuation) as it travels through the fiber. The 1310 nm wavelength is known for its relatively low attenuation in standard silica-based optical fibers, making it suitable for medium-range transmissions. It is often referred to as the "short wavelength" region in contrast to the 1550 nm wavelength, which is used for longer-haul applications due to even lower attenuation.

Light sources such as lasers and light-emitting diodes (LEDs) are manufactured to emit light at or around 1310 nm. Similarly, photodetectors are designed to efficiently receive and convert optical signals at this wavelength into electrical signals. The widespread adoption of the 1310 nm window has led to a mature ecosystem of compatible transceivers, connectors, and testing equipment, contributing to its continued relevance in various networking applications, including local area networks (LANs) and metropolitan area networks (MANs).