Effective area, in relation to cables, is an important factor to consider when dealing with single-mode fibers. Effective area is essentially the area of the fiber that transmits light. This area is determined by the core size and numerical aperture of the fiber. The effective area is important because the larger it is, the more light that can be transmitted through the fiber. This is especially important for single-mode fibers because they have a much smaller core size than multimode fibers, which means the effective area is much smaller.
The effective area of fiber is typically measured in square micrometers (μm2). This area is directly proportional to the amount of light that can be propagated through the fiber. The larger the effective area, the more light that can be transmitted. This is because the larger area allows more light to enter the fiber. In other words, the larger the effective area, the higher the bandwidth of the fiber, and the faster the transmission of data.
In addition to its size, the effective area of fiber is also affected by its numerical aperture. Numerical aperture is a measure of the light-gathering capability of the fiber. The larger the numerical aperture, the more light that can be transmitted through the fiber. This is due to the fact that the numerical aperture allows for a wider range of light to enter the fiber.
In summary, effective area is an important factor to consider when dealing with single-mode fibers because it is directly related to the amount of light that can be transmitted through the fiber. The larger the effective area, the more light that can be transmitted and the higher the bandwidth of the fiber will be. The numerical aperture also affects the effective area of the fiber, so it is important to take this into consideration when selecting a fiber for a specific application.