Amplified InGaAs Detector
Chapter 3: Setup
Page 2
13129-D02
Chapter 3 Setup
CAUTION
Mount the unit in a position that does not block airflow to the fan and heat sink.
Figure 1 Electrical Connections
1. Unpack the detector head.
2. (
Optional
) Install a Thorlabs Ø1/2" diameter TR Post (n
ot included
) into
one of the 8-32 tapped holes (M4 in -EC version) located on the bottom
and side of the head, and mount into a PH Post Holder
(not included
).
3. Connect the 4-pin power supply plug into the power receptacle on the
PDA10DT.
4. Plug the power supply into a 47 to 63 Hz, 100 to 240 VAC outlet.
5. Attach a 50
Ω BNC cable to the output of the PDA. When running cable
lengths longer than 12", we recommend terminating the opposite end of
the coax with a 50
Ω resistor (Thorlabs’ T4119 BNC in-line terminator) for
maximum performance. Connect the remaining end to a measurement
device such as an oscilloscope or high-speed DAQ card.
CAUTION
Many high speed oscilloscopes have input impedances of 50
Ω. In this case, do
not install a 50
Ω terminator. The combined loads will equal 25 Ω which could
allow ~135 mA of output current. This will damage the output driver of the
PDA10DT.
Power Supply
Connection
Power Indicator
LED
Output BNC
Connector
50
Ω
