Best Fiber Optic Attenuators of 2026

This fiber optic attenuator features an adjustable attenuation value of 0-15dB, ensuring stable optical power on its original transmission wave. It has high attenuation accuracy, low added loss and good stability. It operates at wavelengths of 1310nm, 1550nm, 850nm, and 1550nm, and is compatible with both single mode and multi-mode fibers. This device is ideal for fiber optic communication systems, optical instrument calibration or fiber signal attenuation.

The FLYPROFiber LC Attenuator offers precise control over signal strength, letting you reduce optical signal intensity accurately for better network performance. It features low insertion loss, meaning your signal experiences minimal energy loss as it passes through, ensuring efficient transmission. The attenuator supports a broad range of wavelengths, so it works well with different types of optical signals, whether for visible light or infrared. Plus, its standard LC connector interface guarantees a stable, reliable connection that’s easy to set up and compatible with many devices. This makes the FLYPROFiber LC Attenuator a convenient and dependable choice for managing your fiber optic signals.

The Nooelec SMA Attenuator Kit includes 6 different 50Ω SMA in-line attenuators, providing selective attenuation of anywhere between 1dB-42dB in 1dB increments. The values are laser-etched to ensure longevity of the labeling, and the kit has fantastic accuracy of / - 0.1dB through to 3GHz.

The FLYPROFiber LC Attenuator is designed to give you precise control over your optical signals, helping you reduce signal strength accurately when needed. This makes it ideal for fiber optic communications and networks where exact power adjustment is important. It also has very low insertion loss, so you won't lose much signal quality as it passes through, ensuring better performance. The attenuator works well across a wide range of wavelengths, so it fits many different optical systems. Plus, its reliable LC connector makes setup easy and stable, giving you a consistent and hassle-free connection every time.

The Solnique Fiber Attenuators come with five different levels of signal reduction, so you can easily adjust the optical signal strength to suit your needs. Each level includes two pieces, helping you handle various situations without hassle. These attenuators feature high-quality LC/UPC connectors that ensure your signal stays strong and clear with minimal loss. The compact box keeps each attenuation level organized and protected, making it simple to find the right one quickly while preventing loss or damage. Plus, their durable design means they can withstand frequent use and challenging conditions, giving you reliable performance over time.

The FLYPROFiber 3dB LC Attenuator is a single-mode fixed fiber optic attenuator that ensures stable and desired levels of optical power in a link without any changes to the original transmission wave. With high attenuation accuracy, low added loss, and good stability, this attenuator is ideal for use in fiber optic communication systems, fiber optic CATV, and high power optical device measurement. It is used to attenuate input optical power and avoid distortion caused by excessive input optical power at the optical receiver.

The GwliUni 10dB SC Attenuator is designed to reduce fiber optic signal strength by 10dB, making it ideal if you need to control signal levels precisely. It works with SC connectors featuring APC end faces, ensuring a reliable connection. This attenuator supports two common wavelengths, 1310nm and 1550nm, so it fits well with most single-mode fiber systems. You’ll appreciate its high accuracy, with attenuation levels kept within ±10%, which helps maintain consistent signal quality. Plus, its low reflectance value keeps your optical power stable, avoiding signal loss or interference during transmission.

The H!Fiber.com SC 5dB Attenuator is designed to help you manage optical signals effectively. Its SC/UPC male-to-female connectors ensure a secure and reliable connection with your fiber patch cables, making setup hassle-free. With low insertion loss and high return loss, this attenuator protects your equipment by preventing signal overload and reducing errors. You’ll appreciate the precise performance thanks to its polarization dependent loss of less than 0.2dB and return loss of 50dB or more. Lightweight and compact, it’s easy to handle and fits conveniently into your optical network setup, offering stable and consistent signal attenuation you can rely on.

The uxcell SC Mechanically Variable Optical Attenuator is a versatile fiber optic attenuator suitable for single mode and multi-mode fiber modes. It features adjustable attenuation value of 0-30dB and ensures the optical power stays stable. With high attenuation accuracy, low added loss, and good stability, this attenuator operates at wavelengths of 1310nm, 1550nm, and 850nm. It finds wide applications in fiber optic communication systems, optical instrument calibration, and fiber signal attenuation.

The uxcell Fiber Attenuator is a mechanically adjustable attenuator that can adjust the attenuation value from 0-30dB. This attenuator is compatible with both single-mode and multi-mode fiber optic cables. The operation wavelength of the attenuator is 1310nm, 1550nm, and 850nm. The attenuator is designed to ensure that the optical power stays at a stable level on its original transmission wave. With high attenuation accuracy, low added loss, and good stability, the uxcell Fiber Attenuator is widely used in the fiber optic communication system, for example, optical instrument calibration or fiber signal attenuation.