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1.发明公开Adjustable dispersion compensator with few mode fibers and switchable mode converters 有权可调式色散补偿器，具有少量模式光纤和可切换模式转换器
公开(公告)号：EP1396742A2
公开(公告)日：2004-03-10
申请号：EP03019933.5
申请日：2003-09-02
CPC分类号： G02B6/29377 , G02B6/14 , G02B6/29395 , H04B10/25133
摘要： The specification describes dispersion compensators that are adjustable based on selection of mode propagation properties of two or more modes. The fundamental device structure comprises two or more sections of optical fiber that support the fundamental mode as well as well as one or more higher-order-modes (HOM). The HOM fibers are connected to each other by means of a spatial mode-converter (MC) that is switchable. The MC may be fabricated with, for example, long-period fiber-gratings (LPG), coupled waveguide devices, free-space phase-retardation elements, micro-electro-mechanical devices, or acousto-optic couplers. The MC is assembled such that it transforms any incoming spatial mode into one of any other guided modes in the HOM fiber. Switching is achieved by strain, temperature, the electro-optic or nonlinear optic effect, or any other physical effect that changes the refractive index of the optical material used to construct the MC.
摘要翻译： 该规范描述了基于两种或更多种模式的模式传播特性选择可调的色散补偿器。 基础设备结构包括支持基本模式以及一个或多个高阶模式（HOM）的两段或更多段光纤。 HOM光纤通过可切换的空间模式转换器（MC）相互连接。 MC可以用例如长周期光纤光栅（LPG），耦合波导装置，自由空间相位延迟元件，微电子机械装置或声光耦合器来制造。 MC被组装成使得它将任何进入的空间模式转换成HOM光纤中的任何其他导向模式之一。 切换是通过应变，温度，电光或非线性光学效应或任何其他改变用于构建MC的光学材料的折射率的物理效应来实现的。
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公开(公告)号：EP1858128B1
公开(公告)日：2012-11-21
申请号：EP06010258.9
申请日：2006-05-18
CPC分类号： G02B6/03666 , G02B6/02019 , G02B6/02023 , G02B6/03611 , G02B6/0365 , H01S3/06729 , H01S3/094007 , H01S3/094053
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公开(公告)号：EP1858128A1
公开(公告)日：2007-11-21
申请号：EP06010258.9
申请日：2006-05-18
CPC分类号： G02B6/03666 , G02B6/02019 , G02B6/02023 , G02B6/03611 , G02B6/0365 , H01S3/06729 , H01S3/094007 , H01S3/094053
摘要： The specification describes an optical fiber device wherein a lower order mode (LOM) i.e. LP 01 is converted to a higher order mode (HOM) i.e. LP 02 prior to entering the gain section. The gain section is a few mode fiber that supports the HOM. The output from the gain section, i.e. the HOM, may be utilized as is, or converted back to the LOM. With suitable design of the few mode fiber in the gain section of the device, the effective area, Aeff, may be greater than 1600 μm 2 The large mode separation in the gain section reduces mode coupling, allowing greater design freedom and reducing the bend sensitivity of the optical fiber. The fiber designs suitable for the gain section of the devices comprise a core, inner cladding and a trench (down doped region). The inner cladding and the trench regions govern the properties of the higher order mode (LP 02 ).
摘要翻译： 说明书描述到光纤设备worin低阶模式（LOM），即 LP 01被转换为高阶模（HOM），即 LP 02在进入增益部分。 增益部分是几个模光纤支持HOM一样。 从增益部分，即输出 的HOM中，可以按原样使用，或者转换回LOM。 与在该装置的增益区段的少数时尚纤维的合适的设计中，有效面积而且，Aeff，可以大于1600¼m2中的增益部分中的大模分离减少模式耦合，从而允许更大的设计自由度和降低弯曲敏感性 的光纤。 适合于设备的增益区段的光纤设计包括芯，内包层和一个沟槽（向下掺杂区域）。 内包层和沟槽区管理高阶模（LP 02）的性质。
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4.发明授权Adjustable dispersion compensator with few mode fibers and switchable mode converters 有权使用少模光纤和具有可切换模式转换器的可调谐色散补偿器
公开(公告)号：EP1396742B1
公开(公告)日：2007-06-06
申请号：EP03019933.5
申请日：2003-09-02
CPC分类号： G02B6/29377 , G02B6/14 , G02B6/29395 , H04B10/25133
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5.发明公开Polarization insensitive microbend fiber gratings and devices using the same 有权Polarisationsunempfindliche optische Faser
公开(公告)号：EP1628148A1
公开(公告)日：2006-02-22
申请号：EP05013278.6
申请日：2005-06-20
CPC分类号： G02B6/02071 , G02B6/02109 , G02B6/03644
摘要： A microbend-induced fiber grating is formed from a section of optical fiber configured to exhibit "splitting" between the resonant wavelengths supported by the TE and TM components of the LP 1m mode and the resonant wavelength supported by the odd/even HE 2m components of the LP 1m mode. Since only the TE and TM components are polarization dependent, by splitting and shifting the resonant wavelengths for these modes away from a system-desired wavelength(s) supported by the odd/even HE modes, a polarization insensitive microbend-induced fiber grating can be formed. A fiber core configuration including a central core region, trench and ring is formed to exhibit a large radial gradient in core refractive index profile, with a significantly steep transition between the ring index and the trench index, to provide the desired splitting between the (undesired, polarization sensitive) TE/TM modes and the HE mode.
摘要翻译： 微弯引起的光纤光栅由一部分光纤形成，该部分被配置为在由LP1m模式的TE和TM分量支持的谐振波长之间显示“分裂”，并且由奇偶/偶数HE 2m分量支持的谐振波长 LP 1m模式。 由于只有TE和TM分量是偏振相关的，通过将这些模式的谐振波长分裂和移位远离由奇/偶HE模支持的系统期望的波长，偏振不敏感微弯折感光纤光栅可以是 形成。 形成包括中心芯区域，沟槽和环的纤维芯构型以在纤芯折射率分布中表现出大的径向梯度，在环索引和沟槽指数之间具有显着陡峭的转变，从而在（不期望的） ，极化敏感）TE / TM模式和HE模式。
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公开(公告)号：EP1628148B1
公开(公告)日：2009-04-01
申请号：EP05013278.6
申请日：2005-06-20
CPC分类号： G02B6/02071 , G02B6/02109 , G02B6/03644
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7.发明公开Adjustable dispersion compensator with few mode fibers and switchable mode converters 有权使用少模光纤和具有可切换模式转换器的可调谐色散补偿器
公开(公告)号：EP1396742A3
公开(公告)日：2004-06-02
申请号：EP03019933.5
申请日：2003-09-02
CPC分类号： G02B6/29377 , G02B6/14 , G02B6/29395 , H04B10/25133
摘要： The specification describes dispersion compensators that are adjustable based on selection of mode propagation properties of two or more modes. The fundamental device structure comprises two or more sections of optical fiber that support the fundamental mode as well as well as one or more higher-order-modes (HOM). The HOM fibers are connected to each other by means of a spatial mode-converter (MC) that is switchable. The MC may be fabricated with, for example, long-period fiber-gratings (LPG), coupled waveguide devices, free-space phase-retardation elements, micro-electro-mechanical devices, or acousto-optic couplers. The MC is assembled such that it transforms any incoming spatial mode into one of any other guided modes in the HOM fiber. Switching is achieved by strain, temperature, the electro-optic or nonlinear optic effect, or any other physical effect that changes the refractive index of the optical material used to construct the MC.
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