Advantest Q8326 Optical Wavelength Meter

The Q8326 is an optical wavelength meter capable of high-accuracy and high-resolution measurement at the central wavelength of the light from laser diodes (LD) for DWDM. Using a He-Ne laser as the reference wavelength and the Michelson interference method for measurement, the Q8326 assures a high-accuracy measurement. The Q8326 even provides a high sampling rate of 5 times per second, and is suitable for adjustment of oscillation wavelength from laser diodes for DWDM. Wavelength variation can also be measured with high resolution and high accuracy using a deviation display function.

Features

• High Resolution
  
  Using the interference method, a maximum resolution of 0.001 nm/100 MHz can be achieved.
• High Accuracy Measurement Available
  
  The use of a He-Ne laser as the reference wavelength enables a high measurement accuracy of 2 ppm.
• Wide Bandwidth
  
  Short wavelength band (480 to 1000 nm) and long wavelength band (1000 to 1650 nm) is easily switchable for measurement.
• High Speed Sampling
  
  The Q8326 provides a high sampling rate of 5 times/second ; variation in wavelength due to temperature fluctuation can be detected accurately.
• Display of Frequency and Deviation