LIGHT AMPLIFICATION DEVICE AND LASER PROCESSING DEVICE

A light amplifier according to an aspect of the present invention includes: a seed light source (2) configured to generate a pulsing seed light; an excitation light source (3, 7) configured to generate excitation light; a light amplifying fiber (1, 9) configured to amplify the seed light by the exci...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	ISHIZU, Yuichi, TANI, Shuichi, OGAKI, Tatsuo, SAKAMOTO, Tatsunori, YOKOI, Tadamasa, FUKUI, Hiroshi
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	BASIC ELECTRIC ELEMENTS DEVICES USING STIMULATED EMISSION ELECTRICITY
Online-Zugang:	Volltext bestellen
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Beschreibung
Zusammenfassung:	A light amplifier according to an aspect of the present invention includes: a seed light source (2) configured to generate a pulsing seed light; an excitation light source (3, 7) configured to generate excitation light; a light amplifying fiber (1, 9) configured to amplify the seed light by the excitation light and output the amplified light; and a control unit (20) configured to control the seed light source (2) and the excitation light source (3, 7). The control unit (20) has a mode to control the excitation light's power such that as a set value of a pulse width of the amplified light increases, the amplified light's peak energy increases within a threshold value at a minimum set value of the pulse width.