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公开(公告)号:US08731358B2
公开(公告)日:2014-05-20
申请号:US12812757
申请日:2008-01-17
申请人: Claude Pare , Pierre Laperle , Huimin Zheng , Andre Croteau
发明人: Claude Pare , Pierre Laperle , Huimin Zheng , Andre Croteau
CPC分类号: G02B6/02023 , G02B6/03644 , G02B6/03661 , H01S3/06729
摘要: Multi-cladding optical fibers to be used in the context of fiber amplifiers and fiber lasers are described herein. Embodiments of optical fibers include a rare-earth doped core into which the signal field is to be amplified. The doped core is surrounded by multiple claddings that guide the pump field to be absorbed by the reactive core material. The first cladding has a depressed refractive index to improve high-order mode bending losses without incurring significant fundamental mode bending losses.
摘要翻译: 本文描述了在光纤放大器和光纤激光器的上下文中使用的多包层光纤。 光纤的实施例包括要放大信号场的稀土掺杂核。 掺杂的核心由多个包层引导,引导泵浦场被活性芯材料吸收。 第一包层具有低折射率,以改善高阶模弯曲损耗,而不会引起明显的基模弯曲损耗。
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公开(公告)号:US20050191017A1
公开(公告)日:2005-09-01
申请号:US11088946
申请日:2005-03-25
申请人: Andre Croteau , Yves Taillon , Jocelyn Lauzon
发明人: Andre Croteau , Yves Taillon , Jocelyn Lauzon
CPC分类号: G02B6/03661 , G02B6/03605 , G02B6/03638
摘要: The invention provides a multi-clad fiber, with three claddings or more, where at least one intermediate cladding is inserted between an inner core and an outer core of the multi-clad fiber, for enlarging the cross-section of the fiber core or for increasing the dopant density in the core. The invention also provides an intermediate cladding having a multi-layer structure to better confine the pump power in a suitable pumping region of the fiber.
摘要翻译: 本发明提供一种具有三个包层或更多层的多包层光纤,其中至少一个中间包层插入在多包层光纤的内芯和外芯之间,以扩大光纤芯的横截面或用于 增加芯中的掺杂剂密度。 本发明还提供了具有多层结构的中间包层,以更好地将泵浦功率限制在纤维的合适的泵送区域中。
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