US Patent 7593443 Solid laser apparatus excited by a semiconductor laser

Patent 7593443 was granted and assigned to Shimadzu Corp. on September, 2009 by the United States Patent and Trademark Office.

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Is a

Patent

Patent attributes

Current Assignee

Shimadzu Corp.

Patent Jurisdiction

United States Patent and Trademark Office

Patent Number

7593443

Date of Patent

September 22, 2009

Patent Application Number

11989260

Date Filed

July 26, 2005

Patent Primary Examiner

‌

Armando Rodriguez

Patent abstract

Single mode oscillation at a wavelength of about 1064.4 nm is enabled with no use of an etalon installed in an optical resonator by providing one of two ends of a Nd:YAG element, which acts as one end of the optical resonator, with an HR coating arranged for the wavelength of about 1064.4 nm and determining the thickness along the direction of transmission of light of the Nd:YAG element so that the peak of reflection appears at the wavelength of about 1064.4 nm but not at a wavelength of about 1062.8 nm.