YASKAWA AQ6370B - Page 23

2-3
IM 735302-01E
Functions
1
2
3
4
5
6
7
8
9
10
11
App
Index
Higher resolution can be obtained since the wavelength resolution is being determined
by the spectral line width of the tunable laser source. Also, since the tunable laser source
scarcely outputs any other components than the measuring wavelength, and as the noise
light which comes out faintly is being totally cut except for the section corresponding to
the resolution range of this equipment, an extremely high optical dynamic range can be
acquired.
This instrument can execute synchronous sweep with the following tunable laser
sources.
• AQ4321 Series Tunable Laser Source
• AQ2200-136 Tunable Laser Source
One-Action Keys <<See section 5.4 to 5.6 for the operating procedure>>
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.
One-Action Key Name Description
PEAK→REFLEVEL Setsthepeaklevelofthemeasuredwaveformoftheactivetrace
as the reference level.
MARKER→REFLEVEL Setsthemovingmarkerlevelasthereferencelevel.
PEAK→CENTER  Setsthepeakwavelengthorthepeakfrequencyoftheactive
trace measurement waveform to center wavelength or center
frequency.
MEANWL→CENTER SetsTHRESH3dBcenterwavelengthorcenterfrequencyofthe
active trace measured waveform to center wavelength or center
frequency.
VIEW→MEAS   SetsthecurrentlydisplayedZOOMscale
as the measurement
scale (CENTER, START, STOP, SPAN) for the next sweep.
MARKER→CENTER Setsthewavelengthofthemovingmarkertocenterwavelengthor
center frequency.
Δλ→SPAN    Setsthe
sweep width as six times the RMS 20 dB width of the
active trace measurement waveform.
MKRL1-L2→SPAN Setsspacingbetweenlinemarkers1and2forsweepwidth.
PEAK→ZOOMCTR Sets the peak wavelength of the active trace measurement
waveform to center wavelength or center frequency of zoom
display.
MARKER→ZOOMCTR Setsthewavelengthofthemovingmarkertocenterwavelengthor
center frequency of zoom display.
MKRL1-L2→ZOOMSPAN Sets spacing between line markers 1 and 2 for sweep width of
zoom display.
Switching between Vacuum Wavelength and Air Wavelength
<<See section 5.2 for the operating procedure>>
This function switches the measured wavelength to either a vacuum wavelength or an air
wavelength.
Measurement can be performed in either air or vacuum wavelength mode.
Switching between Wavelength and Frequency
<<See section 5.2 for the operating procedure>>
This function switches the horizontal axis display to wavelength or frequency.
You can display either the wavelengths or frequencies of marker values and analysis
results.
2.2 Measurement