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Using the Multi-Wavelength Meter
Measuring Laser Separation
Measuring Laser Separation
It is often important to measure the wavelength and power separation
between multiple laser lines. This is especially true in wavelength-division-
multiplexed (WDM) systems where channel spacing must be adhered to. The
Agilent 86120B can display the wavelength and amplitude of any laser line rel-
ative to another. In fact, the following types of relative measurements can be
made compared to the reference:
• Relative wavelength, absolute power
• Relative power, absolute wavelength
• Relative wavelength and power
This section includes:
Channel separation 2-21
Measuring flatness 2-22