3-18
IM AQ6370E-02EN
6.
Tap
Cancel
to cancel alignment adjustment partway through the process.
Note
• After alignment has been executed, wavelength calibration is also performed automatically inside the
instrument.
• The alignment adjustment has no effect if the process is stopped. The instrument remains in the state
prior to execution of the alignment adjustment.
Adjusting Alignment Using an External Light Source (when the
built-in light source specification is -L0)
Alignment adjustment can be performed on the AQ6370E using a light source that you provide.
The external light source must meet the following conditions.
Wavelength range : 1520 nm to 1560 nm, -20 dBm or higher
Level stability : 0.1 dBp-p or less
Wavelength stability: ±0.01 nm or less
A stable single-wavelength light source such as a DFB-LD or a reference light source built into the
AQ6370E/AQ6370D
Connecting the External Light Source
1.
Turn the power to the instrument ON.
Turn ON the
MAIN POWER
switch and press the
POWER
switch.
For instructions on turning the power ON and OFF, see section 3.4.
2.
Use a 9.5/125 μm SM optical fiber to connect the instrument’s optical input connector with the
optical output connector.
Light source
SM optical fiber (9.5/125 µm)
AQ6370E
3.5 Alignment Adjustment
