Agilent Technologies Agilent 86120C manual Sensitivity, Selectivity, Input Power, Maximum Number

Specifications and Regulatory Information

Definition of Terms

	of one laser line.
	Polarization Dependence indicates the maximum displayed power variation as
	the polarization of the input signal is varied.
	Display Resolution indicates the minimum incremental change in displayed
	power.
Sensitivity	Sensitivity is defined as the minimum power level of a single laser-line input to
	measure wavelength and power accurately. A laser line with less than the min-
	imum power may be measured but with reduced wavelength and power accu-
	racy. For multiple laser-lines input, sensitivity may be limited by total input
	power.
Selectivity	Selectivity indicates the ability to measure the wavelength and power of a
	weak laser line in the proximity of a specified stronger laser line and separated
	by the specified amount.
Input Power	Maximum displayed level indicates the maximum total input power (total of all
	laser lines present) to accurately measure wavelength and power.
	Maximum safe input power indicates the maximum total input power (total of
	all laser lines present) to avoid permanent optical damage to the instrument.
Maximum Number	Maximum number of lines input is the maximum number of displayed lines. If
of Lines Input	more than 200 lines are input, only the 200 longest wavelength lines are dis-
	played.
Input Return Loss	Input Return Loss indicates the optical power reflected back to the user’s fiber
	cable relative to the input power. It is limited by the return loss of the front-
	panel connector, and assumes the user’s connector is good.
Measurement	Measurement cycle time refers to the cycle time when measuring wavelength
Cycle Time	and power of laser lines. Specific advanced applications may require longer
	cycle times.

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