Arroyo Instruments ComboSource 6300 Series - Connecting to the Combosource

6300 Series ComboSource User’s Manual · Page 25
Connecting to the ComboSource
A laser diode is very sensitive to electro-static discharge (ESD), over-voltage,
and over-current conditions. When connecting a laser to the ComboSource,
make sure proper ESD procedures are taken. In addition, it is critical that the
proper current limit and voltage limit be set for the laser diode. Exceeding the
laser diode’s rated current or voltage can damage or destroy the laser diode,
and the ComboSource’s hardware protection features can only protect the laser
diode if these limits are properly set.
The Laser anode and cathode outputs are electrically isolated from ground, as
are the photodiode inputs. In addition, the photodiode inputs are optically
isolated from the laser outputs, ensuring complete electrical isolation of the drive
circuit and photodiode measurement circuit.
A cable is required for both the TEC and Laser outputs. Arroyo Instruments
carries cables specifically designed for these applications, both with a DB
connector on the device end or with a bare wire pigtail for terminating the
connection into a custom mount or device:
Function DB to DB p/n DB to Pigtail p/n
Laser 1220B 1221B
TEC 1260B 1261B
TEC w/ remote sense 1262B 1263B
The 1262B or 1263B cables are only needed if you will be operating the
ComboSource with an RTD sensor and using the 4-wire sensor connection.
Otherwise, the 1260B or 1261B cables are sufficient.
CAUTION
The interlock connections must be kept isolated from all
other connections and from earth ground. Failure to do
so ma
y
dama
g
e the instrument.
NOTE
Connections to the ComboSource and the laser diode
fixture must be secure. Tighten any screws on the DB-9
connectors, and make sure all connections are in good
condition. Poor or intermittent connections can damage
or destroy the laser diode.