Lambda beam user manual
4.2. SERIAL COMMUNICATION
Table 4.4: commands for temperature settings
Command/
Query
Parameter value
Return code
Return value
T?
-
COMMAND_SUCCESS
VALUE_NOT_AVAILABLE
Current temperature in °C
TD?
-
COMMAND_SUCCESS
Default temperature in °C
T0=
Temperature offset in °C
(vallue between
LTN
and
LTP
)
COMMAND_SUCCESS
VALUE_INVALID
FUNCTION_NOT_SUPPORTED
-
T0?
-
COMMAND_SUCCESS
Temperature offset in °C
LTN?
-
COMMAND_SUCCESS
Lowest operating
temperature in °C
LTP?
-
COMMAND_SUCCESS
Highest operating
temperature in °C
The command
TO=
expects a temperature offset for the default temperature (
TD?
) to
be decreased or increased. The temperature can be adjusted with a resolution of
0
.
1
∘
C
.
The highest and lowest possible temperature value can be queried with
LTP?
and
LTN?
, respectively.
Selection of modulation mode
The following commands are used to change the mode of modulation. The mode se-
lection via
takes priority over the manual switch on the laser controller. The actual
position of the manual switch can be determined with the
SP?
query.
Table 4.5: commands for selection of modulation mode
Command/
Query
Parameter value
Return code
Return value
M=
A = external analog
T = external
C = internal
M = combined analog &
COMMAND_SUCCESS
VALUE_INVALID
FUNCTION_NOT_SUPPORTED
-
M
-
COMMAND_SUCCESS
A = external analog
T = external
C = internal
M = combined analog &
CW mode
The Lambda beam series can be operated in
mode at constant power between
0
%
and
100
%
of the maximum output power. There is no need to supply an external control
voltage.
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