6 – 2
Accessories
6.1
Cables
Factory cables, for connecting to laser diodes and thermoelectric
coolers, are avalable from SRS for use with LDC500.
6.1.1
Laser diode cables
Two styles of cable are available to connect the LDC500 Series Laser
Diode Controllers to a laser diode—a flying-lead cable and a double
terminated cable. Both styles have a male DB-9 connector to mate
with the controller. All SRS laser diode cables are specially con-
structed for high flexibility and high bandwidth, and optimized for
use with the LDC500 Series Laser Diode Controllers.
The terminated version of the cable (see Figure 6.1) is available in
two lengths (6 ft and 12ft).
D-sub 9 pin male
D-sub 9 pin male
Interlock
PD Cathode
PD Anode
Shielding
6 ft (1.8m) or 12 ft (3.6m)
Interlock
Chassis GND
LD Anode Sense +
LD Anode
LD Cathode
LD Cathode Sense –
1,2
3
4
5
6
7
8
9
Interlock
Chassis
LD Vsense –
LD Cathode
PD Cathode
PD Anode
LD
LD Anode
1
6
7
8
9
2
3
4
5
1
6
7
8
9
2
3
4
5
Figure 6.1: Laser diode cable with mating connector. SRS part number
O500C3 (6 ft) or O500C5 (12 ft).
This cable can be used with customer-built laser mounts with a fe-
male DB-9 connector. Alternatively, these can be used with some
commercially-available mounts:
•
ILX: Most ILX laser mounts can be directly used, mating the
SRS cable to the 9-pin female socket on the mount. Be certain
the “Interlock” function is satisfied by connecting pins 1 & 2
internally in the laser diode mount.
•
Newport: Mounts from Newport follow a compatible pin as-
signment, but have the reverse gender—the mount has a 9-pin
LDC500 Series Laser Diode Controllers
