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Chapter 4
To install the module into the 6000, follow these steps:
1.
2.
To remove the module from the 6000, follow these steps:
1.
2.
3.
4.1.3
Laser Diode Protection Requirements
Laser diodes are extremely sensitive to electrostatic discharge and current spikes
(transients). Damage can result in reduced output power, shift in threshold current,
changes in beam divergence, and ultimately failure to lase (LED-like output only).
Newport precision current sources and controllers offer the most advanced laser
protection features available, including power line filters, clamping current limits,
and slow-start-up circuits.
However, no instrument can protect against all conditions, especially ESD at the
laser. In order to optimize immunity from radiated or conducted electromagnetic
energy, e.g. static discharge, the following guidelines for the laser diode must be
adhered to:
♦
♦
♦
Turn the 6000 power off. Installing a module with the 6000 on can damage the
module and the 6000.
Place the module into the open bay on the back of the 6000 and slide the module
into place. There are tracks at the top and bottom of the bay which guide the
module into place. Screw the module locking screws into the back panel to
secure the module.
Turn the 6000 power off. Removing a module with the 6000 on can damage the
module and the 6000.
Unfasten the module locking screws which secure the module to the 6000 back
panel.
Grasp the module by the handle which extends from the bottom of the back
panel. Gently, but firmly, pull the module out.
ESD is the primary cause of premature laser failure. As a minimum, use anti-
static wrist straps (grounded with 1 MΩ resistor), anti-static floor coverings,
grounded soldering irons, and grounded work areas. Ionized air blowers are also
recommended.
Laser diode leads should be shorted whenever the laser is transported or stored.
Select a driver module with the lowest possible current rating that still exceeds
the laser's maximum operating current. For example, a laser with a maximum
operating current of 150 mA should be driven by the 6505 500mA laser driver
module.
Laser Diode Driver Module Operation
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