We deal in brand new and used optical test instrument at a lowest price! The AQ6317B is an advanced optical spectrum analyzer for a wide range of applications, including light source evaluation, measurement of loss wave-length characteristics in optical devices, and wave-form analysis of WDM (Wavelength Division Multiplexing) systems. This system features: Diverse analysis functions: WDM, LD, LED, & FBG Wavelength: 600 to 1750 nm Wavelength accuracy: ±0.05 nm Wavelength linearity: ±0.01nm Wavelength repeatability: ±0.005 Resolution accuracy: ±5% Dynamic range: 60dB Sweep time: appoximately 500msec Polarization dependency: ±0.05dB Accuracy: ±0.3dB Wavelength resolution: 0.015 nm Max power measurement: +20dBm (100mW) 9.4-inch color LCD display Trace memory: 32 traces, 20 programs (2) GP-IB interfaces