The EXFO IQS-3150 Variable Attenuator is a precision optical attenuation module engineered for signal level control in fiber optic test and measurement environments. This module delivers spectral uniformity of ± 0.03 dB and operates across singlemode and multimode fiber platforms, making it ideal for BER testing, system verification, and EDFA characterization.
## Technical Specifications
• **Fiber Type Compatibility:** Singlemode (9/125 µm) and Multimode (50/125 µm or 62.5/125 µm)
• **Spectral Uniformity:** ± 0.03 dB
• **Return Loss (ORL):** Compliant with transmission equipment standards
• **Control Modes:** Standard attenuation and self-adjusting output power mode
• **Operating Control Options:** Absolute, relative, and X+B (user calibration offset) modes
## Key Features
The IQS-3150 incorporates a highly efficient optomechanical design with only two moving parts, ensuring long-term durability in demanding 24/7 production environments. The module has been validated through rigorous testing simulating extended operation in typical BER testing conditions.
An optional integrated power meter enables direct output power level setting, eliminating the need for external measurement equipment. In self-adjusting mode, the attenuator automatically compensates for source power fluctuations, maintaining stable conditions at the device under test.
The X+B control mode provides wavelength-independent offset correction for setup losses and wavelength-specific calibration factors to account for patchcord and connector losses.
## Typical Applications
• Bit Error Rate (BER) testing
• Optical system verification
• Erbium-Doped Fiber Amplifier (EDFA) gain and noise characterization
## Compatibility & Integration
The IQS-3150 supports local control via IQS Manager software and remote control through GPIB, RS-232, and Ethernet TCP/IP. SCPI commands and LabVIEW drivers enable integration into automated test environments.
