JDS Uniphase HA9 – HA91C+10KFP1

The JDS Uniphase HA9-HA91C+10KFP1 is a programmable optical attenuator engineered for precise attenuation of optical signals in laboratory and field testing environments. This instrument delivers 100 dB attenuation range with 0.01 dB resolution and repeatability, supporting input power up to 1000 mW (30 dBm) across single-mode and multimode fiber. It excels in power meter calibration, link loss simulation, bit error rate testing, and DWDM system characterization.

## Technical Specifications

• **Attenuation Range:** 100 dB
• **Resolution:** 0.01 dB (nominal)
• **Repeatability:** 0.01 dB
• **Accuracy:** ±0.1 dB
• **Wavelength Range:** 1200–1700 nm (standard); 750–1700 nm available (HA9W variant with 60 dB reduced range)
• **Wavelength Dependence:** ±0.05 dB across 1530–1625 nm
• **Polarization Dependent Loss (PDL):** ≤0.03 dB (typical)
• **Return Loss:** >60 dB (internal reflections minimized)
• **Input Power:** Up to 1000 mW (30 dBm)
• **Fiber Compatibility:** Single-mode and multimode (50/125 µm)

## Key Features

• Fiber type selection via front panel keyboard, GPIB, or RS232
• SCPI/HP8156A command compatibility
• Optional 1:2 optical fiber switch (SW12) for dual input/output selection
• Interchangeable couplers: 2/98, 10/90, 30/70, or 50/50 configurations
• 5V driver output for external/internal switch control
• Class 1 safety classification

## Typical Applications

• Power meter linearity calibration
• Analog transmission and bit error rate testing
• Fiber optic link loss simulation
• EDFA output power characterization
• DWDM system analysis
• Multi-channel AM and high bit-rate PCM systems

## Compatibility & Integration

The HA91C+10KFP1 accepts optional built-in couplers and switches, enabling modular configuration for specific test setups. External devices integrate via front panel access. Standard interfaces support lab automation and remote instrument control.