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Source page: http://commons.wikimedia.org/wiki/File:FiberDiskLasers.jpg
Description 3 fiber disk lasers, fiber lasers with transversal delivery of pump.

the optical fiber with Yb: doped core is coiled and surrounded with the laser diodes (LDs)

which deliver the pump at wavelength of order of 940nm with angle of order of 20 degree, which provides the efficient absorption after to pass few mm across the strip of collied fibers. The yellow parts are cooling systems for the LD; the white boxes are the adjusters necessary to activate each diode. The red and blue wires deliver few kW of electric power. Two black tubes provide the water cooling of the fiber coil and the laser diodes. The output is realized through two ends of the fiber; one of them is barely seen at the left side of the image. The output light at one micron wavelength is distributed among a thousand of transversal modes of the fibers and can be delivered, for example, to the cutting or welding machine without any additional coupler.
Date y. 2000
Source from author
Author Ken-ichi Ueda
(Reusing this file)

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