The JDS Uniphase HA9 is an extended-range programmable optical attenuator delivering 100 dB of attenuation with 0.01 dB resolution and ±0.1 dB accuracy across the 1200–1700 nm band. Built for precision optical signal control in test, measurement, and laboratory environments, it offers 0.01 dB repeatability, low insertion loss, and exceptional backreflection performance. The unit accepts SCPI/HP8156A commands via GPIB, RS232, and front-panel keyboard control, with optional integrated couplers and optical switches for expanded configuration flexibility.
## Technical Specifications
• **Attenuation Range:** 100 dB
• **Resolution:** 0.01 dB
• **Accuracy:** ±0.1 dB
• **Repeatability:** 0.01 dB
• **Wavelength Range:** 1200–1700 nm (standard); 750–1700 nm optional with 60 dB attenuation range
• **Insertion Loss:** <1.5 dB (1280–1375 nm); <2 dB (850–1600 nm)
• **Backreflection:** ≤60 dB
• **Polarization Dependent Loss:** 0.03 dB typical
• **Maximum Input Power:** 200 mW
• **Fiber Type:** Singlemode 9/125 µm
• **Low spectral ripple** suitable for CATV AM systems
## Key Features
• Front-panel keyboard and remote GPIB/RS232 interfaces for stand-alone or system integration
• 5V driver key for external or internal switch control
• SC/PC and SC/APC connector options
• Optional 2/98, 10/90, 30/70, or 50/50 couplers for output monitoring
• Optional 1:2 optical fiber switch (SW12) for dual input/output access
• Class 1 instrument with protective earth grounding
## Typical Applications
Optical power meter calibration, signal conditioning in fiber optic test systems, extended-range attenuation control for laboratory measurements, and network signal management.
## Compatibility & Integration
SCPI/HP8156A command compatibility enables integration into automated test environments. GPIB and RS232 interfaces support both standalone operation and networked instrument control. Optional integrated couplers and switches eliminate the need for external optical components.
