{"product_id":"raman-fiber-lasers-and-amplifiers-based-on-multimode-graded-index-fibers-and-their-application-to-beam-cleanup-9781288395439","title":"Raman Fiber Lasers and Amplifiers Based on Multimode Graded-Index Fibers and Their Application to Beam Cleanup","description":"\u003cp\u003e • Author(s): Nathan B. Terry\u003cbr\u003e • Publisher: Biblioscholar\u003cbr\u003e • Publisher Imprint: Biblioscholar\u003cbr\u003e • BISAC: General\u003c\/p\u003e\u003cp\u003eRaman fiber lasers (RFLs) and Raman fiber amplifiers (RFAs) in multimode fibers were explored. The RFL based ona graded-index fiber was shown to be very efficient relative to RFLs based on singlemode fibers. Several configurations of the RFL were examined; the beam quality of the Stokes beam depended on the reflectivity of the output coupler and the Stokes power. When used as a beamcombiner, the RFL was a highly efficient brightness converter. RFL configurations which used dichroic mirrors were shown to be potentially useful for RFLs based on very large fibers. The forward- and backward-seeded geometries of an RFA based on a graded-index fiber were examined. The beam quality of the output was observed to depend on the beam quality of the input. A numerical model explains this behavior in terms of mode competition and explains why beam cleanup occurs in graded-index fibers but not in step-index fibers. The spectrum of the forward-seeded geometry was superior to the spectrum of the backward-seeded geometry.The RFA was used as a beam combiner.\u003c\/p\u003e","brand":"Biblioscholar","offers":[{"title":"Paperback","offer_id":47598642561175,"sku":"9781288395439","price":5139.0,"currency_code":"INR","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/3471\/1191\/files\/9781288395439.webp?v=1775001491","url":"https:\/\/atlanticbooks.com\/products\/raman-fiber-lasers-and-amplifiers-based-on-multimode-graded-index-fibers-and-their-application-to-beam-cleanup-9781288395439","provider":"Atlantic Books","version":"1.0","type":"link"}