JDS Uniphase JDSU HA9 HA97E+18KFA1 Programmable Attenuator

The JDS Uniphase JDSU HA9 HA97E+18KFA1 is a programmable optical attenuator delivering precise control of optical signal power across extended attenuation ranges. Operating from 1200 to 1700 nm (optional 750–1700 nm), this instrument provides 0 to 100 dB attenuation with 0.01 dB resolution and ±0.03 dB typical accuracy. Designed for test labs, system characterization, and demanding measurement environments, it combines high repeatability with low insertion loss and exceptional return loss performance.

Technical Specifications

• Attenuation Range: 0 to 100 dB


• Attenuation Resolution: 0.01 dB


• Attenuation Accuracy: ±0.03 dB typical; ±0.1 dB maximum


• Repeatability: 0.01 dB


• Wavelength Range: 1200–1700 nm standard; 750–1700 nm optional (60 dB max for HA9W)


• Insertion Loss (Single-mode): 1.2 dB typical, 1.5 dB maximum; with connectors 2.5 dB


• Return Loss (Single-mode): >45 dB; >60 dB analog


• Polarization Dependent Loss: 0.03 dB typical, 0.08 dB maximum


• Wavelength Dependence: ±0.05 dB max over 1530–1625 nm


• Maximum Optical Input Power: 200 mW


• Beam Block Attenuation: >110 dB


• Beam Block Speed: <20 ms


• Attenuation Change Rate (0–100 dB): ≤2.5 seconds


• Input Voltage: 100–240 V AC, 50–60 Hz


• Power Consumption: 80 VA maximum


• Dimensions: 21.2 × 8.9 × 35.5 cm (W×H×D)


• Rack Mounting: 19 inch, 2U high, 1/2 rack width


• Weight: 4 kg


• Operating Temperature: 0 to 40 °C


• Storage Temperature: -40 to 60 °C

Key Features

• SCPI/HP8156A compatible command set


• GPIB (IEEE 488.2) and RS232 control interfaces


• Front panel keyboard operation


• SC/PC and SC/APC connector options


• Optional built-in couplers (2/98, 10/90, 30/70, 50/50) and 1×2 switch


• Single-mode 9/125 µm fiber with front bulkhead or back panel pigtail ports


• 5 V driver key for external or internal switch control

Typical Applications

• Power meter testing and calibration


• Power meter linearity verification


• Analog transmission characterization


• Bit error rate measurements


• General optical test and laboratory work

Compatibility & Integration Standard SC/PC connectors support rapid deployment in existing test benches. Optional couplers and switches extend functionality for multi-port and tap configurations. Dual control via front panel and remote interfaces (GPIB, RS232) enables both manual and automated measurement sequences.