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In other words, a green DPSSL using a 2.5 W pump diode would be expected to output around 500-900 mW of 532 nm light. In optimal conditions, Nd:YVO 4 has a conversion efficiency of 60%, [1] while KTP has a conversion efficiency of 80%. [2] In other words, a green DPSSL can theoretically have an overall efficiency of 48%.
Solid state lasing media are typically optically pumped, using either a flashlamp or arc lamp, or by laser diodes. [1] Diode-pumped solid-state lasers tend to be much more efficient and have become much more common as the cost of high-power semiconductor lasers has decreased.
A laser diode (LD, also injection laser diode or ILD or semiconductor laser or diode laser) is a semiconductor device similar to a light-emitting diode in which a diode pumped directly with electrical current can create lasing conditions at the diode's junction.
In comparison, the conventional diode-pumped solid-state lasers (DPSSLs) on the market used diode bars as the pump source, with each bar typically producing 40 W of power. [ 22 ] By the end of 2000, capital spending by telecommunications providers was reduced and IPG revenue from communications applications declined.
Fig.1. An optically pumped disk laser (active mirror). A disk laser or active mirror (Fig.1) is a type of diode pumped solid-state laser characterized by a heat sink and laser output that are realized on opposite sides of a thin layer of active gain medium. [1] Despite their name, disk lasers do not have to be circular; other shapes have also ...
Neodymium ions in various types of ionic crystals, and also in glasses, act as a laser gain medium, typically emitting 1064 nm light from a particular atomic transition in the neodymium ion, after being "pumped" into excitation from an external source. Nd:YAG lasers are optically pumped using a flashtube or laser diodes. These are one of the ...
Other achievements, important particularly for laser applications, concern the development of mode-locked lasers that can be pumped with laser diodes, can generate very high average output powers (tens of watts) in sub-picosecond pulses, or generate pulse trains with extremely high repetition rates of many GHz.
The Mercury laser is a high-average-power laser system developed at Lawrence Livermore National Laboratory as a prototype for systems to drive inertial confinement fusion. Like the National Ignition Facility , it is intended to produce narrow pulses of extremely high power, using diode -pumped solid-state lasers .
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