The HP/Agilent 81570A is a variable optical attenuator module that delivers precise control of optical power levels across the C, L, and S telecommunications bands. Operating as a single-slot plug-in for Agilent’s Lightwave Multichannel Platform, this module provides 0–60 dB attenuation with 0.001 dB resolution and ±0.1 dB accuracy, enabling accurate optical power management in test and optimization workflows. The straight-interface connector and integrated shutter support both manual and remote control via standard computer interfaces.
Technical Specifications
• Attenuation range: 0 dB to 60 dB
• Resolution: 0.001 dB
• Accuracy: ±0.1 dB
• Repeatability: ±0.01 dB to ±0.015 dB; < 10 mdB
• Settling time: Typically 100 ms
• Wavelength range: 1200 nm to 1700 nm (SMF28, 9/125 µm)
• Wavelength flatness: < 0.05 dB
• Polarization dependent loss: < 0.08 dBpp (typically 0.03 dBpp)
• Return loss: Typically 45 dB
• Maximum input power: +33 dBm (2 W)
• Insertion loss: Typically 0.7 dB (excluding connectors)
– Key Features
• Straight connector interface for versatile fiber coupling
• Integrated shutter for channel drop simulation or optical protection
• Built-in calibration capability
• Low signal distortion from minimal PDL and PMD characteristics
• Manual or remote operation via host platform control
– Typical Applications
• Optical amplifier characterization (EDFAs, Raman amplifiers)
• DWDM transmission system testing and validation
• Optical communication network optimization and link characterization
• Multi-wavelength optical power management
– Compatibility & Integration
The 81570A integrates into Agilent's Lightwave Multichannel Platform, compatible with 8163A/B, 8164A/B, and 8166A/B mainframes.
