US Patent 7130320 External cavity laser with rotary tuning element

Patent 7130320 was granted and assigned to Mitutoyo on October, 2006 by the United States Patent and Trademark Office.

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Is a

Patent

Patent attributes

Current Assignee

Mitutoyo

Patent Jurisdiction

United States Patent and Trademark Office

Patent Number

71303200

Patent Inventor Names

Joseph D. Tobiason0

David W. Sesko0

Date of Patent

October 31, 2006

Patent Application Number

107059030

Date Filed

November 13, 2003

Patent Primary Examiner

‌

Armando Rodriguez

Patent abstract

An external cavity laser has a wavelength of the laser output that is tuned by a rotary tuning element mounted on the axle of a motor. The rotary tuning element includes a variable thickness interference film for wavelength selection, and a variable thickness compensation prism to adjust the cavity length appropriately for the selected wavelength, to stable wavelengths and mode-hop-free tuning ranges as the tuning element is rotated.