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COMPACT LASER

Photonics Spectra
Mar 2004
Spectra Systems Corp.Request Info
 
Spectra Systems Corp. says that its monolithic, diode-pumped solid-state laser produces high power at low cost with increased efficiency. Suitable for a broad range of applications, the device comprises an Nd:YAG laser with an integrated passive Q-switch, and it produces 4-mJ, 3-ns pulses at 1064 nm at repetition rates of up to 125 Hz. The laser can be structured to use a KTP frequency doubler to produce 532-nm pulses with energies higher than 2 mJ. With a footprint of 20 × 7.5 × 10 cm and a mass of 1.2 kg, the system incorporates a control module and power supply.


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GLOSSARY
diode-pumped solid-state laser
A compact solid-state laser, referred to as DPSSL, created when a laser diode pumps light into either the sides or end of gain crystal. Depending on where the pumping occurs, high-quality and stable output beams can be achieved with end-pumped lasers, and high-power output beams can be realized as with side-pumped lasers. Common in green laser pointers, DPSSLs are also used for a variety of materials processing applications, such as cutting and precision marking, and in optogenetics.
Q-switch
A device used to rapidly change the Q of an optical resonator. It is used in the optical resonator of a laser to prevent lasing action until a high level of inversion (optical gain and energy storage) is achieved in the lasing medium. When the switch rapidly increases the Q of the cavity, a giant pulse is generated.
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