DIRECT DIODE LASER PROCESSING DEVICE AND OUTPUT MONITORING METHOD FOR SAME

Title:

DIRECT DIODE LASER PROCESSING DEVICE AND OUTPUT MONITORING METHOD FOR SAME

Document Type and Number:

WIPO Patent Application WO/2016/060095

Kind Code:

A1

Abstract:

The present invention is provided with: a laser oscillator (11) that has a plurality of laser diodes that oscillate multi-wavelength laser light; a transmission fiber (12) that transmits the multi-wavelength laser light that is oscillated by the laser oscillator (11); a laser processing machine (13) that concentrates the multi-wavelength laser light that is transmitted by the transmission fiber and processes a workpiece (W); a detection mechanism (7) that samples a portion of the multi-wavelength laser light and that detects the optical intensity of the sampled laser light at each wavelength; a monitoring unit that monitors reduction in the output of the multi-wavelength laser light on the basis of variation in the optical intensity of the multi-wavelength laser light at each wavelength; and a control module that controls the plurality of laser diodes on the basis of monitoring results from the monitoring unit (73). As a result, the present invention suitably monitors reduction in the output of the multi-wavelength laser light.

Inventors:

OGATA MINORU (JP)

Application Number:

PCT/JP2015/078861

Publication Date:

April 21, 2016

Filing Date:

October 13, 2015

Export Citation:

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Assignee:

AMADA HOLDINGS CO LTD (JP)

International Classes:

B23K26/00; H01S5/0683

Foreign References:

JP2001511895A	2001-08-14
JP2004114090A	2004-04-15
US20140096376A1	2014-04-10
JP2014116419A	2014-06-26
FR2997238A1	2014-04-25

Other References: