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专利名称：OPTIMUM MATCHING OF THE OUTPUT OF
A TWO-DIMENSIONAL LASER ARRAY STACKTO AN OPTICAL FIBER
发明人：SCHLUETER, Holger,SCHNITZLER, Claus申请号：EP04794630.6申请日：20041008公开号：EP1771927A1公开日：20070411
摘要：A light generating apparatus is operably coupled to an optical fiber (10) with acladding (5) and a core (4) defining a core diameter. The optical fiber (10) has a numericalaperture, and the product of the numerical aperture of the fiber and one-half thediameter of the core (4) is less than or substantially equal to 400 millimeter-milliradians.The apparatus includes a plurality (7) of laser diode arrays (6, 23, 55), each arraycomprising at least one light emitting region (1, 24) adapted for emitting light in aindividual beam (21, 11). The plurality of laser diode arrays (6, 23, 55) are arranged suchthat light from the individual beams (21, 11) is combined in a combined beam, and thecombined beam has a first far-field, half-angle divergence in a first direction and a firstwaist dimension in the first direction, and a second far-field, half-angle divergence in asecond direction, substantially perpendicular to the first direction, and a second waistdimension in the second direction. The laser diode arrays (6, 23, 55) are arranged relativeto the optical fiber (10) to couple light output from the laser diode arrays (6, 23, 55) intothe core of the fiber at an end of the fiber. The product of the first far-field, half-angledivergence and the first waist dimension is equal to or smaller than one-half of the
product of the core diameter and a numerical aperture of the fiber (10), and the productof the second far-field, half-angle divergence and the second waist dimension is equal toor smaller than one-half of the product of the core diameter and the numerical aperture.
申请人：Trumpf Photonics, Inc.
地址：2601 U.S. Rte. 130 S Cranbury, NJ 08512 US
国籍：US
代理机构：Müller-Boré & Partner Patentanwälte
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