9-4 Setting Optical Output Power (APC function)
9-4-A. Setting Optical Output Power (APC function)
It is necessary to operate the machine in APC mode to set optical output power. Optical output
power cannot be set in ACC mode. Be sure that the mode is in APC. (ACC indicator is not lit.
If ACC indicator is lit, press ACC again thereby activating APC.)
If the LED is not lit, toggle the rotary encoder change key (toggle action) to the optical output
power side.
When tuning a wavelength in APC mode, for some wavelength and optical output
power settings, the target optical output power cannot be obtained even if LD injection
current is at the maximum possible value. In such a case, CURR LIMIT LED is lit to
show that this is the case. (Refer to Section 8-4 Optical Output Power Control Function)
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