Agilent Technologies 86121A, User Manual, Page: 197 / 240

7
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6 Specifications—NORMAL Update Mode
Specifications—NORMAL Update Mode
Each laser line is assumed to have a linewidth (includ-
ing modulation sidebands) of less than 5 GHz.
All specifications apply when the instrument is in the
following modes:
•
NORMAL
update mode unless noted. Refer to “To change
the measurement speed” on page 3-8 .
• Configured to measure narrowband devices. Specifica-
tions do not apply when the instrument is configured to
measure broadband devices. Refer to “To measure
broadband devices and chirped lasers” on page 3-4 .
Wavelength
Range 1270–1650 nm
Absolute accuracy
(lines separated by
≥
15 GHz)
±
2 ppm
(
±
0.003 nm at 1550 nm and 1310 nm)
Differential accuracy (characteristic)
±
1 ppm
Minimum resolvable separation
a
(characteristic)
10 GHz
(0.08 nm at 1550 nm, 0.06 nm at 1300 nm)
Display resolution 0.001 nm
a. Signals of equal amplitude. For lines that are separated by less than15 GHz, wavelength accuracy is
reduced.