Is a
Patent attributes
Patent Jurisdiction
Patent Number
Patent Inventor Names
Jonas Hellström0
Gunnar Karlsson0
Håkan Karlsson0
Date of Patent
December 15, 2009
Patent Application Number
11922033
Date Filed
June 13, 2006
Patent Primary Examiner
Patent abstract
A laser arrangement is provided, in which a Lyot filter arrangement is operative to effect single mode operation. The birefringent element of the Lyot filter arrangement has a cavity folding mirror on one side thereof and a polarizing element on another side thereof, such that the free spectral range of the Lyot filter is improved. Preferably, the Lyot filter arrangement and the laser gain material are located in different branches of the folded cavity.
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