Key Features 
* Complete Wavelength Analysis in DWDM Systems 
* Measures up to 256 Channels Simultaneously 
* Highly Accurate Wavelength Measurement 
* High Resolvable Separation 
* Grid Monitoring Function 
* Drift Measurement Analysis 
* 6.5 Inch Color LCD and VGA Monitor Interface 
* Remote Interfaces: GPIB & RS-232 

Specs at a glance for the AQ6140 

• Wavelength Range: 1270 to 1650 nm
• Wavelength Absolute Accuracy: ±2 ppm
• Max Input level: +10 dBm
• Optical Input: 9/125 single-mode fiber

Additional Information 

• Linearity: ±0.3 dB (input: -30 dBm or more)
• Polarization Dependence: ±0.5 dB