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Home Fiber Optic Cables Accessories Fiber Attenuators Hot In-line Variable Optical Attenuator Singlemode | Adjustable Fiber Optic Attenuator for Telecom, Datacom & Lab Testing

In-line Variable Optical Attenuator Singlemode | Adjustable Fiber Optic Attenuator for Telecom, Datacom & Lab Testing

In-line Variable Optical Attenuator Singlemode | Adjustable Fiber Optic Attenuator for Telecom, Datacom & Lab Testing

In-line Variable Optical Attenuator Singlemode | Adjustable Fiber Optic Attenuator for Telecom, Datacom & Lab Testing

Brand:

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Specifications

Description

An In-line Variable Optical Attenuator (VOA) is a passive optical device used in fiber optic systems to control the power level of optical signals. It is typically installed in-line within an optical fiber link and allows manual or automatic adjustment of signal attenuation without disrupting the fiber connection.
It helps maintain signal integrity, prevents saturation of optical receivers, and is essential for balancing power in WDM (Wavelength Division Multiplexing) and EDFA (Erbium-Doped Fiber Amplifier) systems.

Features

Adjustable Attenuation: Fine-tuning of optical power typically from 0 dB up to 20 or 30 dB.
Low Insertion Loss: Minimal signal loss when attenuation is set to 0 dB.
Broad Wavelength Range: Often supports 1260–1650 nm (covering O, E, S, C, L bands).
High Return Loss: Usually >50 dB to reduce back reflections.
Compact & Robust: In-line design fits easily into fiber optic setups and patch cords.
Manual or Motorized Control: Some models allow remote or electronic control.
Connector Compatibility: FC, SC, LC, ST, or custom connectors with APC/UPC polish.
Polarization Insensitivity: Maintains performance regardless of signal polarization.

Specifications

Attenuation Range: 0 – 20 dB or 0 – 30 dB
Operating Wavelength: 1260–1650 nm
Insertion Loss: = 0.6 dB (at 0 dB attenuation)
Return Loss: = 50 dB (UPC), = 60 dB (APC)
Attenuation Accuracy: ± 0.1 dB
Optical Power Handling: Up to 500 mW or higher
Connector Types: LC/SC/FC/ST (APC or UPC)
Fiber Type: SMF-28e (Single Mode), 9/125 µm
Operating Temperature: -20°C to +75°C

Ideal Uses of an In-line Variable Optical Attenuator (VOA)

Signal Power Balancing: To equalize optical signal levels across different channels or fibers in a network.
Testing and Measurement: Used in lab environments or field testing to simulate fiber loss or calibrate optical instruments.
DWDM/CWDM Systems: Controls power levels in dense/coarse wavelength division multiplexing systems to prevent channel interference or overload.
Optical Amplifier Management: Protects optical amplifiers (like EDFAs) from input power overload by adjusting signal strength.
Receiver Protection: Prevents damage to sensitive optical receivers by reducing excessive signal power.
System Optimization: Helps fine-tune performance in optical communication links to maintain optimal data transmission quality.
Product Development and R&D: Ideal in research labs for developing and testing new fiber optic components or systems.
Data Centers and Enterprise Networks: Used to control link power levels in high-speed interconnects and ensure stable operation.

Why Choose This Product?

Precision Control: Fine-tuned attenuation for accurate power balancing.
Cost-Effective: Avoids costly signal degradation or system failure.
Easy Integration: In-line design makes it plug-and-play in existing setups.
High Reliability: Long-term stability in both lab and field conditions.
Broad Compatibility: Supports a wide range of fiber types and connector styles.

Features

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Conditions:

New

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