Advantest Q82227 900nm-1650nm Optical Sensor

The Advantest Q82227 is a high-power optical sensor head for precision light measurement across the 900 nm to 1650 nm wavelength range. Built with a cooled InGaAs sensor element, it delivers wide dynamic range performance from -80 dBm to +27 dBm, making it ideal for telecommunications, fiber-optic component testing, and optical power monitoring in laboratory and manufacturing environments. The Q82227 measures output from optical-fiber amplifiers, pump light sources, and high-output laser diodes with measurement accuracy of ±4.5% in CW mode and ±5.5% in CHOP mode.

Technical Specifications

• Wavelength Range: 900 nm to 1650 nm


• Power Range: -80 dBm to +27 dBm


• Minimum Power (CW): 20 nW


• Minimum Power (CHOP): 200 pW


• Measurement Modes: CW (Continuous Optical Measurement Mode); CHOP (Chopped Light Measurement Mode, 270 Hz)


• Measurement Accuracy: CW ±4.5%; CHOP ±5.5%


• Sensor Element: InGaAs, Cooled


• Optical Input: Core Diameter ≤0.19 µm; Numerical Aperture ≤0.19


• Connectors: PC and Slanted Rubbed


• Operating Temperature: 0 to 40°C


• Calibration: NIST Traceable

Key Features

• Noise floor of -80 dBm enables detection of low-level optical signals


• Dual measurement modes address both continuous and modulated light sources


• Compact, portable design supports on-site measurements


• Maximum optical power handling of +27 dBm accommodates high-output applications

Typical Applications

• Optical power monitoring in telecommunications systems


• Laser power measurement for fiber-coupled sources


• Fiber-optic amplifier characterization


• Optical CATV laser diode testing

Compatibility & Integration The Q82227 operates as a plug-in sensor head unit, interfacing with main units such as the Q8221 system for integrated optical measurement.