Coherent light generators – Particular component circuitry – Optical pumping
Patent
1984-10-09
1987-07-21
Sikes, William L.
Coherent light generators
Particular component circuitry
Optical pumping
350 9610, 350 9615, 350 9629, 350 9630, 372 4, 372 6, 372 33, 372 71, 219121L, 219121LC, 219121LD, 219121LM, 219121LG, 219121LJ, 219121LK, G02B 632, H01S 330, B23K 900
Patent
active
046813969
ABSTRACT:
A low-divergence 1.06 micrometer wavelength beam from a total-internal-reflection, face-pumped laser (TIR-FPL) is focused onto the end of a quartz optical fiber to a spot having a size smaller than the fiber diameter and with a beam cone angle less than twice the numerical aperture of the fiber. The fiber transmits the energy to emerge at the other end where it is collimated and focused onto material to be processed. A laser average output power level greater than 400 watts can be transmitted through an optical fiber having a diameter less than 600 micrometers.
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Nath, "Handheld Laser Welding of Metals Using Fibre Optics", Optics and Laser Tech., 10/74, pp. 233-235.
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Campbell Donald R.
Davis Jr. James C.
General Electric Company
Healy Brian M.
Sikes William L.
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