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7-6
Specifications and Regulatory Information
Specifications
Specifications
Each laser line is assumed to have a linewidth (including modulation side-
bands) of less than 10 GHz.
All specifications apply when the instrument is in the following modes:
•
NORMAL
update mode unless noted. Refer to “Measurement rate” on page 2-14.
• Configured to measure narrowband devices. Specifications do
not
apply when
the instrument is configured to measure broadband devices. Refer to “Measur-
ing broadband devices and chirped lasers” on page 2-10.
Wavelength
Range 700-1650 nm (182-428 THz)
Absolute accuracy (lines separated by
≥
30 GHz)
±
3 ppm (
±
0.005 nm at 1550 nm,
±
0.004 nm at 1310 nm)
Differential accuracy
(characteristic)
±
2 ppm
Minimum resolvable separation
a
(characteristic)
20 GHz (0.16 nm at 1550 nm, 0.11 nm at 1300 nm)
Display resolution 0.001 nm, normal update mode
0.01 nm, fast update mode
a. Signals of equal amplitude. For lines that are separated by less than 30 GHz, wavelength accuracy is reduced.