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    • 3. 发明申请
    • WAVELENGTH INSENSITIVE EXPANDED BEAM WITH GRIN FIBER
    • 波长不透明的光纤束
    • WO2013153032A1
    • 2013-10-17
    • PCT/EP2013/057310
    • 2013-04-08
    • TYCO ELECTRONICS NEDERLAND BV
    • FLORIS, Sander, JohannesDUIS, Jeroen AntoniusRIETVELD, Jan, WillemSMINK, Rutger Wilhelmus
    • G02B6/32
    • G02B6/32Y10T29/49826
    • A GRIN fiber lens connection system particularly suited for high-power laser applications is disclosed. In one aspect, a GRIN fiber lens expanded beam system that is efficient over a wide spectral region, e.g., a range of about 200 nm, 300 nm or 400 nm, is disclosed for coupling one optical fiber (such as a single-mode fiber) to another. For example, a GRIN fiber lens expanded beam system is efficient over a range of wavelengths from about 400 nm to about 800 nm, from about 190 nm to about 390 nm, or from about 1270 nm to about 1650 nm. A method for designing such a coupling system is also disclosed. In another example, the cores of the GRIN fiber lenses are substantially devoid of germanium, and the cladding is doped with an element, such as fluorine, that lowers the refractive index of the cladding.
    • 公开了特别适用于大功率激光应用的GRIN光纤透镜连接系统。 在一个方面,公开了一种在宽光谱区域(例如约200nm,300nm或400nm的范围内)有效的GRIN光纤透镜扩展光束系统,用于耦合一个光纤(例如单模光纤 )到另一个 例如,GRIN光纤透镜扩展光束系统在约400nm至约800nm,约190nm至约390nm,或约1270nm至约1650nm的波长范围内是有效的。 还公开了一种用于设计这种耦合系统的方法。 在另一示例中,GRIN光纤透镜的芯基本上没有锗,并且包层掺杂有诸如氟的元件,其降低了包层的折射率。
    • 4. 发明申请
    • MULTI-MODE MULTI-FIBER CONNECTION WITH EXPANDED BEAM
    • 多模多光纤连接与扩展光束
    • WO2013153037A1
    • 2013-10-17
    • PCT/EP2013/057321
    • 2013-04-08
    • TYCO ELECTRONICS NEDERLAND BV
    • FLORIS, Sander, JohannesBOLHAAR, Antonius, Bernardus, GerardusRIETVELD, Jan, Willem
    • G02B6/26
    • G02B6/38G02B6/262G02B6/32G02B6/3885Y10T29/49826Y10T29/49904
    • A method and system using GRIN fibers with a large core radius (such as twice that of the optical fibers which the GRIN fibers are used to interconnect) to expand incident beam are disclosed. In certain examples, the GRIN fibers expand the incident beams to near-collimation. In certain examples, the beam expansion reduces the connection's sensitivity (i.e., power attenuation) to lateral displacement between the optical fibers at the cost of increased sensitivity to angular misalignment between the fibers. With certain fiber connection hardware that provides precision angular alignment, beam expansion provides improved connection performance. In certain examples, a multi-fiber connector module (such as MPO), with MT-style ferrules, is used to interconnect multiple fiber pairs, each with GRIN fiber endings. In certain examples, the near-collimation of the incident beams allows efficient transmission between fibers without the need for physical contact between the fibers.
    • 公开了一种使用具有大的芯半径的GRIN光纤(例如GRIN光纤用于互连的光纤的两倍)以扩展入射光束的方法和系统。 在某些实例中,GRIN纤维将入射光束扩展到接近准直。 在某些示例中,光束膨胀以连接的灵敏度(即功率衰减)降低光纤之间的横向位移,其代价是增加对光纤之间的角度偏移的灵敏度。 使用提供精确角度对准的某些光纤连接硬件,光束扩展提供了改进的连接性能。 在某些实例中,使用带MT型套圈的多光纤连接器模块(如MPO)来互连多个光纤对,每个光纤对具有GRIN光纤端点。 在某些实例中,入射光束的近准直允许光纤之间的有效传输,而不需要光纤之间的物理接触。