ST Variable Fiber Optic Attenuator Single Mode 0–30dB Adjustable
The ST variable attenuator provides adjustable 0–30dB optical power control for single mode fiber networks, ideal for testing, calibration, and telecom applications.
-
Description
-
Specification
-
Features
-
Application
-
Custom Service
-
FAQ
The ST Variable Fiber Optic Attenuator is a precision adjustable optical component designed for controlling signal power levels in single mode fiber networks. With a variable attenuation range from 0 to 30dB, it allows flexible adjustment of optical power to optimize link performance and protect sensitive receivers.
Equipped with a durable ST bayonet-style interface, this attenuator ensures stable mechanical connection and reliable optical performance. It is widely used in FTTH, FTTA, telecom testing, and laboratory environments where dynamic signal tuning and accurate power calibration are required.| Connector Type | ST |
|---|---|
| Attenuation Range | 0–30 dB |
| Fiber Type | Single Mode 9/125μm |
| Adjustment Type | Manual adjustable |
| Return Loss | High stability |
| Insertion Loss | Low loss |
- Adjustable attenuation range from 0 to 30dB
- ST bayonet connector for secure and stable connection
- Compatible with single mode 9/125μm fiber systems
- High precision optical attenuation control
- Low insertion loss and stable return loss performance
- Compact and durable design for field and lab use
- Easy manual adjustment for real-time optimization
- Passive device requiring no external power
- FTTH optical access networks
- FTTA base station systems
- Telecom central office and ODF testing
- Data center optical link balancing
- CATV signal optimization systems
- Fiber optic laboratory and R&D testing
We provide OEM and ODM services for fiber optic attenuators. Custom options include connector types (ST/SC/FC/LC), attenuation ranges, housing design, labeling, and packaging solutions for telecom operators, distributors, and testing equipment integrators.
Q1: What is the purpose of a variable attenuator?
It allows adjustable control of optical signal strength for testing, calibration, and network optimization.
Q2: What is the attenuation range of this product?
It supports an adjustable range from 0 to 30dB.
Q3: Is ST connector still widely used?
Yes, ST connectors are commonly used in legacy networks, testing equipment, and industrial fiber systems.
Q4: Does this attenuator require power?
No, it is a passive optical device and does not require external power.
Q5: Where is it mainly used?
It is used in telecom testing, FTTH/FTTA deployments, and laboratory optical system calibration.













