7-3
Specifications and Regulatory Information
Definition of Terms
Definition of Terms
Characteristics
and specifications
The distinction between specifications and
characteristics
is described as fol-
lows:
Specifications
describe warranted performance.
Characteristics
provide useful, but nonwarranted information about the func-
tions and performance of the instrument.
Characteristics are printed in
italics
.
Wavelength Absolute Accuracy (after user cal)
refers to the wavelength accuracy after
the user has performed the internal wavelength calibration using a source of
known wavelength.
Reproducibility
refers to the amount of wavelength drift which can occur
over the specified time while the OSA is swept across a source of known wave-
length.
Tuning Repeatability
refers to the wavelength accuracy of returning to a
wavelength after having tuned to a different wavelength.
Resolution FWHM
refers to the Full-Width-Half-Maximum resolutions that are available.
This indicates the width at half power level of the signal after passing through
the resolution slits.
book.book Page 3 Monday, January 31, 2000 10:34 AM
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