JDS Uniphase HA3

The JDS Uniphase HA3 is a programmable optical attenuator engineered for precision optical power control across telecommunications and laboratory test environments. It delivers 0 to 60 dB attenuation with 0.0005 dB resolution and ±0.1 dB accuracy, making it essential for power meter calibration, analog transmission characterization, and bit error rate testing. The device minimizes optical reflections and cavity effects to ensure measurement integrity across single-mode fiber systems from 1200 to 1700 nm.

## Technical Specifications

• Attenuation Range: 0 to 60 dB
• Attenuation Resolution: 0.0005 dB
• Attenuation Linearity: ±0.1 dB
• Accuracy: ±0.1 dB
• Wavelength Range: 1200 to 1700 nm
• Wavelength Dependence: 90 dB rapid attenuation
• Linear design with integral calibration and offset functions
• GPIB and RS232 control with SCPI command compatibility
• Optional coupler and switch expansion capability

## Typical Applications

• Optical power meter linearity calibration
• Analog transmission test and characterization
• Bit error rate (BER) measurement
• Loss simulation in fiber optic link analysis
• EDFA output power characterization
• Multichannel AM system evaluation
• High bit-rate PCM system testing

## Compatibility & Integration

The HA3 integrates with single-mode fiber optic test benches via FC/PC connectors. Control is achieved through GPIB or RS232 interfaces supporting standard SCPI command protocols, enabling integration into automated measurement systems and laboratory instrumentation.