Fiber laser beam processing apparatus

Details Fiber laser beam processing apparatus Fiber laser beam processing apparatus

2007-01-17

2008-10-14

Nguyen, Dung T (Department: 2828)

Coherent light generators

Optical fiber laser

C372S101000, C372S108000

Reexamination Certificate

active

07436863

ABSTRACT:
A fiber laser beam processing apparatus is configured by a fiber laser oscillator, a laser power source unit, a laser beam injecting unit, a fiber transmission system, a laser beam irradiating unit, a processing table, etc. A portion of a fiber laser beam oscillated and outputted by the fiber laser oscillator is received by a photo diode for monitoring the power through a beam splitter. An output signal of the photo diode is sent to a laser power source unit. The power source unit receives the output signal of the photo diode as a feedback signal and controls a driving current or an excitation current to be supplied to a laser diode of a pumping unit such that the laser output of the fiber laser beam equals a set value.

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patent: 6275250 (2001-08-01), Sanders et al.
patent: 2006/0056470 (2006-03-01), Liu et al.
patent: 2007/0189339 (2007-08-01), Matsuda et al.
patent: 1 650 839 (2006-04-01), None

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