Name：Keysight 81634A

OVERVIEW Power range: -110 dBm to +10 dBm. Wavelength range: 800 nm to 1700 nm. Measurement accuracy: Power uncertainty as low as ±2.5% (1000 nm to 1630 nm). Linearity: (Continuous wave +10 dBm to -70 dBm) < ±0.015 dB ±2 pW. Polarization Dependent Loss (PDL): Uncertainty less than 0.005 dB. Detector characteristics: Thermally stabilized (cooled), hermetically sealed, with a glass window.