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Specifications and Regulatory Information
Specifications
Specifications
Agilent Technologies warrants that the following specifications will be met
under the following instrument operating conditions:
Unless otherwise indicated,
• the specified temperature range is 10 ° to 30 ° C
• only over the 1510 to 1580 nm wavelength range
• device and fixtures present at least a 30 dB return loss to the laser source
• normalization is repeated when the temperature changes 4 ° C since the last
normalization or at least once every 24 hours and normalization is performed
at the same sweep mode as the measurement
• wavelength calibration is repeated when the temperature changes 4 ° C from
the last calibration or at least once every 24 hours
• laser sweeps at 5 nm/s (Precision Sweep mode)
• laser warm up of 90 minutes prior to performing measurements
• Acc Unspec notation not present on display
• specifications assume sufficient sensitivity used to eliminate noise
Specification Discussion
Trace Amplitude Accuracy is the observed trace accuracy after performing
normalization with a thru cable. The instrument is most accurate at the top of
the scale, so the specification is split. Amplitude accuracy does not include the
effects of the connector repeatability. A typical connector insertion loss, while
normally small, can change as much as 0.25 dB from connection to connec-
tion. The insertion loss can be reduced by normalizing with two patch cords
connected to a barrel and then inserting the DUT without disconnecting the
patch cords from the instrument. A splice at the DUT connection provides the
best accuracy. The total amplitude accuracy specification includes the RSS
(root sum of the square) combination of:
• polarization dependent loss (PDL) which assumes polarization changes be-
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