The JDS Uniphase HA9W1+20KSC1 is a programmable optical attenuator for precision control of optical power in telecommunications and laboratory testing. It delivers up to 100 dB attenuation with 0.01 dB resolution across a 1200–1700 nm wavelength range, making it suitable for power level adjustments in DWDM characterization, bit error rate testing, and general optical test work.
## Technical Specifications
• **Attenuation Range:** Up to 100 dB
• **Resolution:** 0.01 dB nominal
• **Accuracy:** ± 0.1 dB
• **Wavelength Range:** 1200–1700 nm (750–1700 nm available with reduced 60 dB range)
• **Fiber Type:** 50/125 µm multimode
• **Optical Interface:** SC/PC
• **Insertion Loss:** Typically 60 dB analog
• **Internal Reflectance:** Better than 60 dB
• **Beam Blocking Switch:** Built-in, >90 dB attenuation
## Key Features
• Coupler options: 2/98, 10/90, 30/70, or 50/50 configurations available
• Optional built-in couplers and switches for output tapping or dual-channel access
• Minimal cavity effects with discrete internal optical reflections controlled to >60 dB
• Fast infinite attenuation via mechanical beam blocking switch
• 5 V front-panel driver key for external or internal switch control
## Typical Applications
• Power meter testing and calibration
• Bit error rate (BER) testing
• Multichannel AM system characterization
• High bit-rate digital PCM systems
• DWDM system validation and characterization
## Compatibility & Integration
Command control via SCPI/HP8156A-compatible command set, GPIB/IEEE-488, RS232-C, or front-panel keyboard entry. Integrates with external test systems requiring precise optical attenuation control and monitoring.
