Laser Diode Connections And Shielding; Figure 2.4 Common Laser Cathode - Photodiode Cathode; Figure 2.5 Common Laser Cathode - Photodiode Anode - ILX Lightwave LDX-3500 Series User Manual

I N S T A L L A T I O N A N D O P E R A T I O N
2
C H A P T E R
Introduction to the LDX-3500 Series Front Panel

Laser Diode Connections and Shielding

Before connecting the laser diode to the LDX-3500 Series Precision Current Source, be
sure that the front panel (OUTPUT) ON switch is in the OFF position (ON LED unlit).
Before turning on the LASER output, be sure that the current limit has been correctly set.
The interlock pins (1 and 2) on the LASER connector must be shorted in order to turn on
the LASER output current.
Figures 2.4 - 2.7 show the possible configuration of connecting laser diodes and
photodiodes with the LDX-3500 Series Precision Current Sources.
18
LDX-3500 Series
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OUTPUT
P . D. L. D.

Figure 2.4 Common Laser Cathode - Photodiode Cathode

OUTPUT
P. D. L. D.

Figure 2.5 Common Laser Cathode - Photodiode Anode

3500 Series Precision Current Source
7
+
Bias
+
6
-
8, 9
4, 5
3
Earth Ground
3500 Series Precision Current Source
7
+
Bias
6 +
-
8, 9
4, 5
3
Earth Ground