Set the optical output power by the rotary encoder. And as for entry of optical output power,
entry is available by either "mW" or "dBm".
9-4-B. ACC Function
This product operates in two modes, APC (automatic power control) mode and ACC (auto-
matic current control) mode. It operates in APC mode when it is turned on.
When optical output power is changed in normal APC mode, wavelength and side mode sup-
pression ratio change slightly owing to the change in injection current to LD, therefore, so as
to avoid this, use the TSL-210 in ACC mode. To operate it in ACC mode, press the ACC key;
When the key is pressed, the ACC mode LED is lit. In ACC mode, it is not possible to set the
optical output power.
Optical output power value and current value are held until power is shut off unless
their setting is changed. Therefore, when it is toggled to ACC mode, optical output
power is made at the present setting of the injection current value; when it is toggled
to APC mode, optical output power is made at the present setting of the optical output
power value.
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