5-24
IM AQ6373-01EN
Explanation
Wavelength Sweep Width
The available setting range is 0, and 0.5 to 850.0 nm. If you press the COARSE key you
can use the rotary knob or arrow keys to change the numerical value in 1-2-5 steps. The
value changes in 1 nm steps if you do not press the COARSE key.
Start Wavelength
The setting range is 1.000 to 1200.000 nm. The value changes in 1 nm steps if you press
the COARSE key. If you do not press it, the value changes in 0.1 nm steps.
Note that the wavelength at which measurement starts is 350 nm or higher.
Stop Wavelength
The setting range is 350.000 to 1625.000 nm. The value changes in 1 nm steps if you
press the COARSE key. If you do not press it, the value changes in 0.1 nm steps.
Note that the wavelength at which measurement ends is 1200 nm or lower.
Note
• Setting the sweep width changes the start wavelength and stop wavelength. The center
wavelength/frequency does not change.
• Changing the center wavelength changes the start wavelength and stop wavelength. The
sweep width does not change. When the start or stop wavelength is set, one wavelength
becomes fixed, and this changes the value of the sweep width. In addition, the center
wavelength value is also changed at the same time.
One-Action Keys
This is the general name for a key that uses data from the active trace waveform (the
currently displayed waveform) to set measurement conditions.
Setting conditions requires that a waveform is displayed for the active trace.
Δλ→SPAN
Sets the sweep width as six times the spectrum width (threshold 20 dB ) of the active
trace measurement waveform with the RMS method.
MKR L1-L2 →SPAN
Sets spacing between line markers 1 and 2 for sweep width.
The setting range is 0.5 to 850 nm (in 0.1 nm steps).
Frequency Sweep Width
The allowed settings are 0 and the range of 0.05 to 610.000 THz.
If you press the COARSE key you can use the rotary knob or arrow keys to change the
numerical value in 1-2-5 steps. The value changes in 0.1 THz steps if you do not press
the COARSE key.
Start Frequency
The setting range is 1.0000 to 856.5000 THz. The value changes in 0.1 THz steps if you
press the COARSE key. If you do not press it, the value changes in 0.01 THz steps.
Note that the frequency at which measurement starts is 250 THz or higher.
Stop Frequency
The setting range is 250.0000 to 999.9000 THz. The value changes in 0.1 THz steps if
you press the COARSE key. If you do not press it, the value changes in 0.01 THz steps.
Note that the frequency at which measurement ends is 856.5 THz or lower.
5.6 Sweep Width Settings