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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 is defined as the minimum power level of a single laser-line input to
Sensitivity
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 indicates the ability to measure the wavelength and power of a
Selectivity
weak laser line in the proximity of a specified stronger laser line and separated
by the specified amount.
Maximum displayed level indicates the maximum total input power (total of all
Input Power
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 of lines input is the maximum number of displayed lines. If
Maximum Number
of Lines Input
more than 200 lines are input, only the 200 longest wavelength lines are dis-
played.
Input Return Loss indicates the optical power reflected back to the user's fiber
Input Return Loss
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 cycle time refers to the cycle time when measuring wavelength
Measurement
Cycle Time
and power of laser lines. Specific advanced applications may require longer
cycle times.
6-4
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