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Home WDM, OTN & PON Passive Components Fiber Attenuators Hot Inline Fiber Optic Attenuator for EDFA Protection | Fixed Attenuation Module for Optical Amplifier Safety & WDM Systems

Inline Fiber Optic Attenuator for EDFA Protection | Fixed Attenuation Module for Optical Amplifier Safety & WDM Systems

Inline Fiber Optic Attenuator for EDFA Protection | Fixed Attenuation Module for Optical Amplifier Safety & WDM Systems

Inline Fiber Optic Attenuator for EDFA Protection | Fixed Attenuation Module for Optical Amplifier Safety & WDM Systems

Brand:

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Specifications

Description

An Inline Attenuator for EDFA (Erbium-Doped Fiber Amplifier) Protection is a passive optical device used to limit the input or output power levels going into or out of an EDFA. It helps prevent amplifier saturation, protect sensitive components, and balance gain across channels in dense optical networks, especially DWDM systems.
This attenuator is installed directly into the fiber path (inline) and is usually available in fixed or variable versions. It is designed to work in the C-band and L-band, which are standard EDFA operating ranges.

Features

EDFA Compatibility: Designed to operate within C-band (1530–1565 nm) and/or L-band (1570–1610 nm).
Fixed or Variable Attenuation: Available in fixed values (e.g., 3, 5, 10 dB) or variable models for tunable power control.
High Power Handling: Supports optical input power levels of up to 500 mW or higher.
Low Insertion Loss: Minimal signal loss beyond the intended attenuation.
Broad Wavelength Support: Typically covers 1260–1650 nm for flexibility in mixed systems.
Connectorized or Bare Fiber: LC/SC/FC connectors or bare fiber ends for fusion splicing.
Compact Inline Design: Easily integrated into patch panels, splice trays, or ODFs.

Specifications

Attenuation Range: Fixed (1–20 dB) or Variable (0–30 dB)
Operating Wavelength: 1260–1650 nm (EDFA C/L band ready)
Insertion Loss: = 0.6 dB (at 0 dB setting for variable)
Return Loss: = 50 dB (UPC), = 60 dB (APC)
Power Handling: Up to 500 mW (27 dBm) or more
Fiber Type: Single Mode (9/125 µm, OS2)
Connector Types: LC/SC/FC/ST – UPC or APC polish
Operating Temperature: -20°C to +75°C
Package Type: Inline cylindrical housing or micro-module

Ideal Uses

EDFA Input Protection: Prevents amplifier saturation due to high input power levels.
EDFA Output Control: Limits output power to protect downstream devices.
DWDM System Balancing: Equalizes power across multiple channels before amplification.
ROADM/Optical Line Terminal (OLT) applications: Ensures stable optical budget control.
Lab & R&D Testing: Simulates signal conditions for amplifier characterization.
Field Deployments: Simple, passive solution for amplifier safety in live networks.
Preventing Nonlinear Effects: Reduces risk of four-wave mixing and cross-phase modulation in high-power DWDM environments.

Why Choose Inline Attenuator for EDFA Protection?

Protects critical amplifier assets from overload and long-term damage.
Ensures signal quality by maintaining optimal gain conditions.
Plug-and-play installation with standard fiber connectors.
No external power needed, completely passive.
Compatible with all major EDFA brands and network equipment.
Stable, reliable performance in high-traffic, high-density optical systems.

Features

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