Fiber Optic Attenuator is used to weaken or control a transmitted optical signal and preserve the quality of that signal when the laser or VCSEL is too strong for the receiver to read correctly. Commonly used fiber optical attenuation range is from 1dB to 20dB. UnitekFiber offers various fixed and variable optical attenuators (VOAs), with various LC, SC, ST, FC, E2000, and MPO connectors.
A fiber optic attenuator, also known as an optical attenuator, is a passive device used to reduce the power level of an optical signal. Since too much light can saturate a fiber optic receiver, fiber optical attenuators are often deployed in systems to reduce optical power and achieve optimal fiber optic system performance. Typically, fiber optic attenuators are not required for multi-mode systems because multi-mode sources (even VCSELs) rarely have enough power output to saturate a receiver. In contrast, for single-mode systems, especially long-haul DWDM network links, fiber attenuators are necessary to balance the optical power during transmission.
A fiber optic attenuator is a passive device used in fiber optic networks to reduce the power or intensity of an optical signal. Fiber optic attenuator works by introducing a controlled amount of signal loss into the optical path.
Fiber optical attenuators are primarily used to overcome issues such as excessive signal strength, signal distortion, or to balance power levels in optical communication systems. They are commonly employed in scenarios where the transmitted signal is too strong and needs to be reduced to a desirable level to prevent signal degradation or damage to receiving equipment.
Classifying Fiber Optic Attenuators: Different Types for Precise Signal Control
Fiber optic attenuator can indeed be classified into different types based on various perspectives. The two primary classifications are fixed optical attenuator (FOA) and optical variable attenuator (VOA). Additionally, they can be further categorized based on the fiber optic cable type as single-mode or multi-mode fiber optic attenuator.
Fixed Optical Attenuator (FOA): These fiber optic attenuator provide a fixed and specific amount of attenuation, such as 1dB, 5dB, 10dB, etc. They have a predetermined reduction value that cannot be adjusted or changed. FOA fiber optic attenuator are commonly used when a constant level of attenuation is required in the optical network.
Optical Variable Attenuator (VOA): VOA fiber optic attenuator allows for adjustable levels of attenuation, providing flexibility in controlling signal power. They enable precise adjustment of the attenuation value to meet specific requirements. VOA fiber optic attenuator are typically used in applications where the desired attenuation level may vary or need fine-tuning, such as testing or dynamic network environments.
SM Fiber Optic Attenuator: SM fiber optic attenuator are designed specifically for use with single mode fiber optic cables. They are optimized for the transmission of light signals over longer distances and have lower insertion losses compared to multimode fiber optic attenuator.
MM Fiber Optic Attenuator: Multimode fiber optic attenuator are designed for use with multimode fiber optic cables. They are suitable for shorter distance transmissions and have larger core diameters than single mode fiber optic attenuator.
UnitekFiber as a professional manufacturer of fiber optic products, in addition to the different types of fiber optic attenuator mentioned above. We also provide high quality fiber optic connector and fiber optic adapter or etc. We are happy to support you and establish business cooperation with you. If you have any questions, please contact us by email at sales@unitekfiber.com
