6-8
Specifications and Regulatory Information
Specifications—FAST Update Mode
Specifications—FAST Update Mode
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:
• FAST update mode unless noted. Refer to “Measurement rate” on
page 2-13.
• Configured to measure narrowband devices. Specifications do not apply
when the instrument is configured to measure broadband devices. Refer
to “Measuring broadband devices and chirped lasers” on page 2-9.
Wavelength
Range 1270–1650
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
a. Signals of equal amplitude. For lines that are separated by less than 30 GHz, wavelength accuracy is reduced.
