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OWNERS MANUAL | Cobolt 08-01 Series | D0141-K SEPTEMBER 2020
Constant power controls
In constant power mode the laser has a field where the output power can be set
Cobolt 06-DPL laser power controls are connected to a calibrated internal photodiode that delivers a real time
power measurement and controls the drive current via a feedback loop.
Cobolt 06-MLD lasers display the power corresponding to a particular diode current from a calibrated look up
table. The lasers are shipped in constant current mode to achieve optimum performance, it is not recommended
to run these products in constant power mode.
To read the power setting without the Cobolt Monitor software, use the command ‘p?’
. The output power of
the
laser can be set with the command ‘p X.X’ where X.X is the power in
Watts (W)
. For example, to set an 06-
DPL power to 25 mW the command is ‘p 0.025’. The maximum allowed power is set at the factory.
Constant current controls
The laser output power can also be controlled with the current setting in constant current mode. Cobolt 06-
MLD’s are shipped in constant current mode to achieve optimum performance, it is not recommended to run
these products in constant power mode.
To read the current setting without the Cobolt Monitor softw
are, use the command ‘i?’
. The drive current, and
therefore output power, of the
laser can be controlled by setting the current with the command ‘slc XXXX’ where
XXXX is the current in
milliamperes (mA)
. For example, to set the current to 2500 mA the comm
and is ‘slc 2500’.
The emission from the laser can be stopped by sending the command to set the current to zero. For example,
to set the current to
0
mA the command is ‘slc
0
’.
The current control can be used to toggle the laser between different current settings with commands, such as
between the threshold current (low or no current) and the current setting that corresponds to the nominal
output power. There are safety controls in place to prevent the user from exceeding the safe maximum current
for any given laser.
