HP-Agilent/Keysight 8157A

Optical Attenuator 1300/1550nm – 60 dB Attenuation Range – 0.01 dB Display Resolution – HP-IB, GPIB Interface – High input power up to 2 W – Excellent wavelength flatness: +/- 0.05dB – Low insertion Loss: 0.7dB – Pigtail (SMF or PMF) availability – Wide wavelength range: 1200 – 1700nm – High resolution: 0.01dB