What is the typical wavelength range for laser sources utilized in fiber optics?

The typical wavelength range for laser sources utilized in fiber optics is 1310 nm and 1550 nm. These wavelengths are optimal for minimizing signal attenuation and maximizing the distance over which data can be transmitted through optical fibers.

At 1310 nm, the fiber optic systems benefit from relatively low attenuation, which makes it suitable for shorter to medium distances, while 1550 nm is preferred for long-distance communication due to even lower signal loss. This characteristic allows for high-speed data transmission over vast distances, making these wavelengths standard in telecommunications infrastructure.

Additionally, the choice of these specific wavelengths aligns with the transparency windows of optical fibers, which are designed to efficiently transmit light with minimal loss. By operating in this range, fiber optic systems can effectively handle the high data rates required in modern communication networks. This is why the other provided ranges do not typically apply: they either fall outside the most effective transmission wavelengths for long-distance communication or are associated with higher attenuation rates.