Improved High-Power Performance in Fiber Laser Systems
Navy SBIR FY2012.1


Sol No.: Navy SBIR FY2012.1
Topic No.: N121-068
Topic Title: Improved High-Power Performance in Fiber Laser Systems
Proposal No.: N121-068-1134
Firm: nLight Photonics
5408 NE 88th Street, Bldg E
Vancouver, Washington 98665
Contact: Manoj Kanskar
Phone: (360) 553-9694
Web Site: www.nlight.net
Abstract: nLight proposes to develop and commercialize an innovative kilo-watt class fiber laser pump combiner which is especially suited for counter-pumping architectures that is indispensable for various coherent combining techniques. The key advantages of this proposed technology over the current state-of-the art are: its superior power-handling capability due to use of all-metal/glass in the package; lack of signal beam distortion while maintaining high polarization extinction ratio; capability to inject pump power at multiple locations along the gain fiber for power-scaling purpose; absence of any passive relay fiber that is notoriously responsible for earlier onset of Stimulated Brillouin Scattering (SBS); an agile technology that allows coupling to various geometry fibers (PM or non-PM) without having to ab intio redesign the coupler while providing higher reliability and lower manufacturing cost. nLight will demonstrate kilowatt-class amplifier using this pump combiner and its proprietary active fiber.
Benefits: This technology will enable nLight to push its products to higher output powers for both CW and pulsed fiber lasers that are targeted for DoD and industrial materials processing applications.

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