LASER SOURCE AND FILTERING METHOD FOR OBTAINING A GOOD OPTICAL QUALITY FROM BEAMS OF ANNULAR SECTION - Patent 1084526

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EP 1 084 526 A1

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(43)	Date of publication:
	21.03.2001 Bulletin 2001/12

(21)	Application number: 99925271.1

(22)	Date of filing: 27.05.1999

(51)	International Patent Classification (IPC)⁷: H01S 3/08

(86)	International application number:
	PCT/IT9900/148

(87)	International publication number:
	WO 9963/633 (09.12.1999 Gazette 1999/49)

(84)	Designated Contracting States:
	BE CH DE ES FR GB LI NL SE

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Priority:

01.06.1998 IT FI980130

(71)	Applicant: Istituto Nazionale di Ottica Applicata
	50125 Arcetri (IT)

(72)	Inventor:
	LAPUCCI, Antonio I-50011 Antella, Bagno a Ripoli (IT)

(74)	Representative: Mannucci, Michele et al
	Ufficio Tecnico Ing.A. Mannucci,Via della Scala 4 50123 Firenze 50123 Firenze (IT)

(54)	LASER SOURCE AND FILTERING METHOD FOR OBTAINING A GOOD OPTICAL QUALITY FROM BEAMS OF ANNULAR SECTION