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3
C H A P T E R
The LDM-4616 features pin configuration headers (terminal blocks) for each socket
within the mount. These headers allow various laser pin-outs to be used. It is extremely
important that you verify that the configuration of each header is correct for the specific
laser used in that socket. Incorrect wiring of these headers may result in failure or
damage to the laser devices. Before installing your lasers, refer to the instructions above
for details on how to correctly configure your mount.
Laser diodes are extremely susceptible to damage caused by electrostatic discharge and
surge currents. To avoid early failure or damage to the device, workers and work
benches must be grounded at all times when handling or working with laser diodes.
Refer to ILX Lightwave Application Note #3, "Protecting Your Laser Diode", for more
information.
Inserting Your Laser
To mount a butterfly-packaged laser diode in the mount, using the following steps
(refer to Figure 3.8).
1
2
3
4
Some laser packages have leads that reside high above the bottom of the
package (i.e. 7.6 mm is a common "high" dimension). If the leads on your laser sit
much above the socket contacts, call ILX Lightwave to get a set of spacers that
raise the socket contacts.
To install the spacers, remove the two screws on each side of the socket contact
strip with a 5/64" hex socket wrench (supplied in the shipping kit). Pull the contact
strip straight up being careful not to bend the connector pins on the bottom. Place
on spacer under the contact strip. Carefully align the pins on the bottom of the
contact strip with the holes in the mount and push the contact strip straight down.
Replace the screws on either side of the contact strip. Repeat this procedure for
the contact strip on the other side of the socket and insert your laser as described
above.
18
LDM-4616
O P E R A T I O N
Front Panel Fiber Optic Mating Adapters
Turn the laser hold down clamps outward so they do not interfere with inserting the laser
package.
Open both lead clamps by releasing the latches and lifting the contact arms.
Holding the laser package by the corners, carefully lower the laser onto the heat sink,
while aligning the laser leads withthe appropriate contacts. Insure that the laser
package is not backwards.
The pigtails point toward the center of the mount: the laser pigtails in the two left modules
point right and the laser pigtails on the two right modules point left. Insure that each laser
goes in a socket that was configured for the proper pin-out.
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