The Keysight 8156A Opt. 100 is a programmable optical attenuator providing precise control of optical power levels across the 1200 nm to 1650 nm band. Designed for testing, calibration, and characterization of optical communication systems and components, this instrument delivers 60 dB attenuation range with 0.001 dB resolution and ±0.1 dB typical accuracy. The Option 100 configuration features >35 dB return loss, 4.5 dB typical insertion loss, and 35 dB
• Insertion Loss (Option 100): 4.5 dB typical
• Polarization Sensitivity (Option 100): 60 dB optical blocking
• Nine user-selectable parameter storage and recall positions
• Back reflector mode compatible with HP 81000BR external reference reflector for reflection sensitivity measurement
• Non-volatile battery backup maintaining settings for at least 10 years
– Typical Applications
• Optical component and system testing
• Optical communication link calibration
• Power level validation in manufacturing test environments
• Component reflection sensitivity characterization
– Compatibility & Integration
Requires compatible optical interface connectors such as the Agilent 81000FI mainframe. Operates via HP-IB/GPIB for automation and integration with test systems. Compatible with instruments including the HP 8153A Lightwave Multimeter.
















