High-Precision ST Optical Attenuator
An ST optical attenuator, also known as a fiber optic attenuator, is a device used to reduce the power level of an optical signal. It is commonly used in fiber optic communications systems to match the power level of the transmitter to the sensitivity of the receiver. ST optical attenuators are also used to protect sensitive optical equipment from damage caused by excessive optical power.
- Reduces fiber optic signal power.
- Features a rugged ST connector.
- Offers fixed attenuation values from 1dB to 30dB.
- Built with metal-ion doped fibers for stability.
- Functions across 1310nm and 1550nm wavelengths.
Description
An ST Optical Attenuator is a critical passive device used to reduce the power level of a fiber optic signal in the transmission path. At EPCOM, we specialize in providing high-performance attenuators that ensure your network operates within optimal power ranges, preventing receiver overload and signal distortion. These components are indispensable for balancing power in multi-wavelength systems and for testing network equipment. By precisely controlling signal strength, our attenuators help maintain the integrity and reliability of your entire fiber optic infrastructure.
Fiber optic networks rely on a delicate balance of light power. Too little power results in a weak signal that cannot be detected, but too much power can saturate or even permanently damage the sensitive photodiode in an optical receiver. This is a common challenge in systems with high-power sources like Erbium-Doped Fiber Amplifiers (EDFAs) or in short-distance links where the signal has not naturally attenuated. Our attenuators provide a simple and effective solution, acting like sunglasses for your network to ensure the signal arrives at the perfect power level.
Key Features of the EPCOM ST Optical Attenuator
EPCOM’s attenuators are engineered for superior performance and reliability. They are built using metal-ion doped fibers which absorb excess optical energy, dissipating it as heat without reflecting it back towards the source. This method ensures stable and consistent attenuation across a wide range of operational conditions.
Precision Attenuation and Stability
We offer a comprehensive range of fixed attenuation values from 1dB to 30dB, allowing you to select the exact level of signal reduction your application requires. Each unit is individually tested to guarantee low tolerance and high precision, providing stable performance across both common operating wavelengths (1310nm and 1550nm). This stability is crucial for applications in Dense Wavelength Division Multiplexing (DWDM) systems where channel power must be precisely equalized.
Robust ST Connector Design
The “ST” in ST Optical Attenuator refers to its Straight Tip connector interface, which features a rugged bayonet-style coupling mechanism. This design ensures a reliable and vibration-resistant connection, making it ideal for both laboratory and field use. For seamless integration into your existing infrastructure, these attenuators can be paired with an ST Fiber Optic Adaptor to connect two ST fiber patch cables.
ST Optical Attenuator Technical Specifications
The following table details the technical specifications of our attenuators. These parameters meet and often exceed industry standards, ensuring compatibility and high performance within your network.
| EPCOM ST Optical Attenuator Specifications | |
|---|---|
| Operating Wavelength | SM (1310nm / 1550nm) |
| Attenuation Value | 1~10dB(1dB step), 15dB, 20dB, 25dB, 30dB |
| Attenuation Tolerance | ±0.5dB (for 1~10dB) / ±1.0dB (for 11~30dB) |
| Return Loss (PC) | ≥ 50dB |
| Return Loss (APC) | ≥ 60dB |
| Polarization Dependent Loss (PDL) | ≤ 0.2dB |
| Maximum Optical Input Power | 200mW |
| Operating Temperature | -40°C to +75°C |
| Compliance | Telcordia GR-326-CORE, TIA/EIA |
Applications and System Integration
Fixed attenuators are essential components in a variety of fiber optic systems. They are commonly deployed in telecommunications mainframes, CATV networks, and local area networks (LANs). In laboratory environments, they are invaluable for simulating signal loss over long fiber spans and for safely testing high-power components. Their simple, plug-and-play design allows for quick installation and removal, providing flexibility during network configuration and maintenance.
Maintaining Your ST Optical Attenuator Network
To ensure consistent performance, it is vital to maintain the cleanliness of the connector end-faces. Dust and contaminants can obstruct the light path, leading to increased back reflection and signal instability. We highly recommend using a specialized tool like the Fiber Optic Cassette Cleaner to regularly clean all connectors before mating. Proper cleaning is a fundamental practice for anyone working with fiber optics, as detailed by industry bodies like the Fiber Optic Association.
These attenuators are part of a complete connectivity ecosystem. While they manage signal power, the signal itself is carried by high-quality cables. EPCOM offers a full suite of solutions, including advanced multi-fiber assemblies like the MPO/MTP Patch Cord, to meet the demands of modern high-density data centers.
Why Choose EPCOM for Your Attenuation Needs?
At EPCOM, we are committed to providing networking components that deliver uncompromising quality and reliability. Our ST Optical Attenuator products undergo rigorous quality control and testing to ensure they meet the stringent demands of today’s high-speed optical networks. By choosing EPCOM, you are investing in components that provide long-term stability and protect your valuable network equipment. Contact our team today to discuss your specific requirements or to request a quote.
