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Properties
of Laser Diodes
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Optical
Pumping
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Rate
Equcation Model
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Static & Dynamic
Behaviour
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Output
Power
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Resonator
Properties
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Stability
Criterion
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Laser
Spiking
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PDF data sheet ...
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Optical
pumping in conjunction with Nd:YAG lasers is of
particular interest because these have become widely
accepted for industrial use, along with the CO2
laser. The laseractive material which, in the case
of the Nd:YAG laser, is excited by optical pumping,
consists of Neodymium ions that are accommodated
in a transpa-rent YAG host crystal (Yttrium Aluminium
Garnet).
Whereas up to a few years ago Nd:YAG lasers were always excited using
discharge lamps, optical pumping with laser diodes is becoming more
and more signifi-cant. This is because laser diodes are available econo-mically
and they emit narrow band light at high optical powers, which matches
the energy levels of the Nd:YAG crystal.
The advantage over the discharge lamp is that the emission of laser
diodes is nearly completely absorbed by the Nd:YAG, whereas the very
wide spectral emission of discharge lamps is absorbed to only a small
extent.
A theoretical analysis of the Nd:YAG laser is performed, and a rate
equation model derived. The steady state solution is presented, and
the dynamic situation considered to investigate spiking.
The kit con-tains all components necessary to assemble a diode pumped
Nd:YAG laser a 500 mW diode with driver and Peltier controller, collimating
and focusing optics, Nd:YAG crystal, laser mirrors, a photodiode detector
and all necessary mounts etc.
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