N7766A 双光纤衰减器

Key specifications at a glance: Wavelength range: 800 – 1370 nm Attenuation range: 0 to 35 dB Relative power monitoring uncertainty: ±0.1 dB + 300 pW Settling time: 200 ms (typical) Transition speed: selectable from 0.1 to 80 and 1000 dB/s Optical path blocking: >60 dB (typical) Flexible configurations: N7766A: 2 attenuation channels N7768A: 4 attenuation channels Fiber port options: 50 µm, 62.5 µm, or 80 µm for multimode systems Primary application: Determine optical receiver sensitivity by measuring BER vs. input signal power. The output power monitoring ensures accurate, stable settings regardless of input variations. Convenient offset parameters let you set power levels that correspond to signals after other optical components in the test path.