Variable Fiber Attenuator

Variable optical attenuator for precise in-line signal level control.

Wide attenuation range of 0 to 30 dB with precise, continuous adjustment capability
High attenuation accuracy of ±0.5 dB for reliable signal level management
Low insertion loss of ≤ 1.0 dB to minimise signal degradation in the optical path
High return loss of ≥ 50 dB (SM) for excellent back-reflection suppression
Available in SC, LC, FC, and ST connector interfaces for universal compatibility
Supports both single-mode and multi-mode fiber types

Fiber-to-the-Home (FTTH) and Fiber-to-the-Building (FTTB) network power balancing
Telecommunications network testing, commissioning, and maintenance
Cable TV (CATV) and broadband infrastructure signal level optimisation
Data centre interconnects and optical link budget management

Attenuation Range	0 to 30 dB (Typical)
Attenuation Accuracy	± 0.5 dB
Resolution	0.1 dB (Typical)
Insertion Loss	≤ 1.0 dB
Return Loss	≥ 50 dB (SM)
Wavelength Range	1260 to 1650 nm
Connector Type	SC / LC / FC / ST
Fiber Type	Single-mode / Multi-mode
Polarisation Dependent Loss (PDL)	≤ 0.2 dB
Repeatability	≤ ± 0.2 dB
Operating Temperature	-20°C to +70°C
Storage Temperature	40°C to +85°C
Durability	≥ 1000 adjustment cycles