Modulation; Table 1 - Laser Connector Pinouts; Table 2 - Mopa Laser Connector Pinouts - Newport 8000 User Manual

Chapter 3
For MOPA modules, a 15-pin male D-connector is used for the MOPA cable and a 9-
pin male connector is used for the TEC jumper cable, as shown below.
MOPA Connector
Pin
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
3.3.1

Modulation

A BNC connector is provided for an external modulation signal. See section 3.5.3.2
for a description of modulation bandwidth.
Each 100 mV change in the modulation input is equal to 1% of the maximum drive
current of the module. For example, 100 mV input on a 6560 module (6 A driver)
would equate to 60 mA of drive current. However, regardless of the input voltage,
the current cannot exceed the current limit.
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Laser Diode Driver Module Operation
1,2 Interlock
3 Chassis Ground
4,5 Laser Cathode
6 Photodiode Cathode (+)
7 Photodiode Anode (-)
8,9 Laser Anode

Table 1 - Laser Connector Pinouts

Description Pin
TE- 1,2
Analog Ground 5
OSC-/LAS- 6,7
OSC+ 8
+12V Fan 9
LAS+
N/C
TE+
Interlock+
Therm-
Therm+
MPD+
MDP-
LED+
LED-

Table 2 - MOPA Laser Connector Pinouts

Do not connect or disconnect a signal to the modulation
TEC Strap Connector
Description
TE+
Ground
TE-
Therm+
Therm-
CAUTION
input with the laser on.
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