JDS Uniphase HA9 JDSU HA097+28KSU1 Programmable Attenuator

The JDS Uniphase HA9 / JDSU HA097+28KSU1 is a programmable optical attenuator engineered for precision control of optical signal strength in single-mode fiber systems. It delivers attenuation up to 100 dB with 0.01 dB resolution across the 1200 nm to 1700 nm wavelength range, making it ideal for demanding optical test environments. The unit supports front-panel keypad control and remote operation via GPIB (IEEE 488.2) and RS232 interfaces with SCPI/HP8156A compatible commands.

– Technical Specifications

• Fiber Type: Single-mode 9/125 µm
• Wavelength Range: 1200 nm to 1700 nm (standard); optional 750 nm to 1700 nm available
• Attenuation Range: Up to 100 dB (60 dB reduced range available for specific models)
• Resolution: 0.01 dB
• Accuracy: ± 0.1 dB (with calibration optimization)
• Optical Return Loss: 45 dB (standard configurations)
• Optical Reflections: Better than 60 dB
• Cavity Effects: Virtually eliminated

– Key Features

• SC/APC connectors (HA097+28KSU1 configuration); FC/APC alternative available
• Optional universal connector adapters for PC or APC types
• Beam blocking switch delivering >90 dB attenuation
• Low insertion loss across operating range
• Front-panel status LEDs and operating keys
• Optional 1:2 optical switch configuration
• Fitted coupler options: 2/98, 10/90, 30/70, or 50/50 ratios

– Typical Applications

• Power meter calibration and testing
• Bit error rate testing
• Amplifier characterization
• DWDM system validation
• Multi-channel AM and CATV systems
• High bit-rate PCM digital systems

– Compatibility & Integration

Remote control via GPIB (IEEE 488.2) and RS232 with SCPI/HP8156A command compatibility enables integration into automated test systems. Front-panel keypad provides direct manual operation. Optional internal couplers and switches allow output tap access or dual input/output configurations.