4-19
IM AQ6376-01EN
Mesurement
1
2
3
4
5
6
7
8
9
10
11
App
Index
Explanation
Center Wavelength (Frequency / Wavenumber)
The ranges that can be set are as follows.
Center wavelength:
1500.000 to 3400.000 nm
Center frequency:
88.0000 to 200.0000 THz
Center wavenumber:
2941.000 to 6667.000 cm
-1
You can change the values using the rotary or arrow keys.
The value changes in 1 nm (0.1 THz/1 cm
-1
) steps if you press the COARSE key.
The value changes in 0.1 nm (0.01 THz/0.1 cm
-1
) steps if you do not press the COARSE
key.
Start Wavelength (Frequency / Wavenumber)
The ranges that can be set are as follows.
Start wavelength:
550.000 to 3400.000 nm
Start frequency:
32.0000 to 200.0000 THz
Start wavenumber:
1078.000 to 6667.000 cm
-1
You can change the values using the rotary or arrow keys.
The value changes in 1 nm (0.1 THz/1 cm
-1
) steps if you press the COARSE key.
The value changes in 0.1 nm (0.01 THz/0.1 cm
-1
) steps if you do not press the COARSE
key.
Stop Wavelength (Frequency / Wavenumber)
The ranges that can be set are as follows.
Stop wavelength:
1500.000 to 4350.000 nm
Stop frequency:
88.0000 to 256.0000 THz
Stop wavenumber:
2941.000 to 8530.000 cm
-1
You can change the values using the rotary or arrow keys.
The value changes in 1 nm (0.1 THz/1 cm
-1
) steps if you press the COARSE key.
The value changes in 0.1 nm (0.01 THz/0.1 cm
-1
) steps if you do not press the COARSE
key.
Note
• 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.
• Changing the center wavelength does not change the sweep width.
• The above is the same for Frequency and Wavenumber mode.
AUTO CENTER OFF/ON
This key sets whether the PEAK
→
CENTER soft key functions for each sweep.
When this key is set to ON, the peak is searched in the active trace waveform and set
as the center wavelength automatically for each sweep. The active trace must be set to
WRITE. When ON is selected,
at the bottom of the screen is displayed in reverse
video.
4.5 Center Wavelength (Center Frequency / Center Wavenumber) Setting