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Making Measurements
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- divi-
sion- multiplexed (WDM) systems where channel spacing must be
adhered to. The Agilent 86120C can display the wavelength and ampli-
tude of any laser line relative 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- 19
Measuring flatness 2- 21
2-18
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