Device for coherent addition of laser beams
Patent 5121400 Issued on June 9, 1992. Estimated Expiration Date: 
November 30, 2010. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.
November 30, 2010. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent ReferencesPhase coupling multiple lasers Energy scalable laser amplifier External beam combining of multiple lasers Coherent coupling of optical gain elements Apparatus for the efficient wavelength conversion of laser radiation Patent #: 4907238 InventorsAssigneeApplicationNo. 620032 filed on 11/30/1990US Classes:372/32, Frequency372/21, Nonlinear device372/68, Plural active media or active media having plural dopants372/71, End-pumped laser372/97, Plural cavities372/108Specified output coupling deviceExaminersPrimary: Epps, GeorgiaAttorney, Agent or FirmInternational ClassH01S 003/13Foreign Application Priority Data1989-12-01 FRAbstractDevice for coherent addition of laser beams including several optical amplifiers in parallel pumped by a beam coming from a master laser. The beams emitted by these amplifiers are transmitted to a non-linear material and play the role of pump beams. The non-linear material also receives a signal beam derived from the master laser. The various beams of the amplifiers are therefore added in the non-linear material along the direction of the signal beam.Other References
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