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A green laser pointer is a frequency doubled Nd:YVO 4 diode-pumped solid state laser . [48] Nd:YAG can be also made to lase at its non-principal wavelength. The line at 946 nm is typically employed in "blue laser pointer" DPSS lasers, where it is doubled to 473 nm. [49] [50] [51]
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%.
The AN/PEQ-2 Infrared Target Pointer/Illuminator/Aiming Light (ITPIAL) is a laser sight for use on rifles fitted with a Picatinny rail. It was manufactured by Insight Technology . [ 3 ]
Neodymium-doped yttrium orthovanadate (Nd:YVO 4) laser 1.064 μm laser diode Mostly used for continuous pumping of mode-locked Ti:sapphire or dye lasers, in combination with frequency doubling. Also used pulsed for marking and micromachining. A frequency doubled nd:YVO 4 laser is also the normal way of making a green laser pointer.
The Advanced Target Pointer Illuminator Aiming Laser, ATPIAL AN/PEQ-15 known colloquially as the "PEQ-15" [/ p ɛ k / / f ɪ f t iː n /] produced by L3Harris (originally designed and manufactured by Insight Technology, until their acquisition by L3Harris in 2010); is a multifunction IR Target Pointer & Illuminator, a.k.a. a Laser Aiming Module (LAM) for use as a rifle attachment, using a ...
The Nd:CaWO 4 laser was developed in 1961. [66] Historically, it was the third laser which was put into operation (the first was ruby, the second the U 3+:CaF laser). Over the years the neodymium laser became one of the most used lasers for application purposes. The success of the Nd 3+ ion lies in the structure of its energy levels and in the
Mode locking is a technique in optics by which a laser can be made to produce pulses of light of extremely short duration, on the order of picoseconds (10 −12 s) or femtoseconds (10 −15 s). A laser operated in this way is sometimes referred to as a femtosecond laser, for example, in modern refractive surgery.
Ray optics explanation (focused laser). In addition to keeping the bead in the center of the laser, a focused laser also keeps the bead in a fixed axial position: The momentum change of the focused rays causes a force towards the laser focus, both when the bead is in front (left image) or behind (right image) the laser focus.
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