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1. 发明授权

US4941726A Tapered fiber amplifier 失效
标题翻译：锥形光纤放大器
公开(公告)号：US4941726A
公开(公告)日：1990-07-17
申请号：US239158
申请日：1988-08-31
申请人： Stephen D. Russell , Timothy C. Stamnitz
发明人： Stephen D. Russell , Timothy C. Stamnitz
IPC分类号： G02B6/255 , G02B6/28 , H01S3/30
CPC分类号： H01S3/302 , G02B6/2552 , G02B6/2821 , G02B6/2835
摘要： A tapered optical fiber amplifier is designed to provide for long-distance, un-repeatered fiber optic communications. Two single-mode fiber portions are tapered to efficiently intensify and couple an information signal from a laser diode and a pump signal at a shorter wavelength into a fused, tapered single-mode fiber optic coupler. The concentrated information signal and concentrated pump signal are combined via the coupler which is coupled to a several-kilometer length of a relatively small core diametered single-mode fiber to create a nonlinear optical effect (stimulated Raman scattering) (SRS). The SRS causes Raman shift of the pump signal to amplify the information signal, resulting in amplified signals that are efficiently coupled out of the relatively small core diametered optical fiber with another single-mode optical fiber taper portion. The tapered fiber portions launch the signal and pump light into the small core diametered single-mode fiber length, thereby generating SRS to result in a signal amplification and an efficient extraction of the amplified signal via the tapered output fiber portion or pigtail.
摘要翻译：锥形光纤放大器设计用于提供长距离，不重复的光纤通信。两个单模光纤部分是锥形的，以有效地将来自激光二极管的信息信号和较短波长的泵浦信号耦合到融合的锥形单模光纤耦合器中。集中的信息信号和集中的泵浦信号通过耦合器组合，该耦合器耦合到几公里长的相对小的芯径直径的单模光纤以产生非线性光学效应（受激拉曼散射）（SRS）。 SRS引起泵浦信号的拉曼移位以放大信息信号，从而产生被相对较小的核心直径光纤与另一个单模光纤锥形部分有效耦合的放大信号。锥形纤维部分发射信号并将光泵送到小芯径直径单模光纤长度中，从而产生SRS以产生信号放大和通过锥形输出光纤部分或尾纤有效提取放大信号。

2. 发明授权

US4913507A Mode field conditioner 失效
标题翻译：模式场调节器
公开(公告)号：US4913507A
公开(公告)日：1990-04-03
申请号：US242466
申请日：1988-09-08
申请人： Timothy C. Stamnitz , Stephen D. Russell
发明人： Timothy C. Stamnitz , Stephen D. Russell
IPC分类号： G02B6/26 , G02B6/42
CPC分类号： G02B6/4203 , G02B6/262
摘要： The "mode field conditioner" (MFC) includes a radially contracted region in a cylindrical dielectric waveguide wherein, optical power density undergoes transition from low to high values in order to stimulate or enhance certain nonlinear optical effects or combinations of nonlinear optical effects; i.e., frequency conversions, phase transitions, polarization changes, the magnitude of which changes are proportional to the precise degree of light concentration that takes place. An intrinsic transition from linear fiber optic links to nonlinear optical transmission lines or networks can be made by an appropriate concatenation or arrangement of one or more of the suitably designed mode field conditioners. The mode field of the transmitted light may be decreased corresponding to increase power density, a phase-shift may be induced via self-phase modulation, frequency conversion may occur via stimulated Raman scattering or stimulated four-photon mixing, temporal and/or spatial pulse shaping may occur via a combination of nonlinear effects, or a rotation in the polarization or a change from linear to circular polarization or vice versa.
摘要翻译： “模场调理器”（MFC）包括在圆柱形介质波导中的径向收缩区域，其中光功率密度经历从低值转换到高值，以便刺激或增强某些非线性光学效应或非线性光学效应的组合; 即频率转换，相变，极化变化，其变化幅度与发生的精确的光浓度成比例。从线性光纤链路到非线性光传输线路或网络的内在转变可以通过适当的级联或布置一个或多个适当设计的模式场调节器来进行。透射光的模场可能会随着功率密度的增加而减小，可以通过自相位调制感应出相移，可以通过受激拉曼散射或受激四光子混合，时间和/或空间脉冲进行频率转换成形可以通过非线性效应或极化中的旋转或从线性到圆偏振的变化或反之亦然而发生。

3. 发明授权

US4867518A All-fiber SFPM amplifier 失效
标题翻译：全光纤SFPM放大器
公开(公告)号：US4867518A
公开(公告)日：1989-09-19
申请号：US239156
申请日：1988-08-31
申请人： Timothy C. Stamnitz , Stephen D. Russell
发明人： Timothy C. Stamnitz , Stephen D. Russell
IPC分类号： G02B6/26 , G02B6/28 , G02B6/34 , H01S3/30
CPC分类号： G02B6/29332 , G02B6/262 , G02B6/2821 , G02B6/2835 , H01S3/302
摘要： An "integrated fiber" device provides optical signal amplification to: (1) provide for increased distances between undersea repeaters and/or optical regeneration nodes in fiber optic transmission systems, or (2) support an increased number of multiple users on an optical data bus network or multiple parallel signal processing channels in an optical processor/computer. In the latter case a greater number of divisions of the signal can occur before the divided signal amplitude falls below the threshold needed for processing or detection. A combination of fiber components is incorporated that include: two optically tapered portions for conditioning of two input laser beams to a wavelength selective single-mode coupler used to combine the concentrated information signal and concentrated pump wave, and one of whose output ports is then optically coupled to a predetermined length of single-mode fiber. The fibers optogeometric parameters are especially designed for intrinsic phase-matching to effect pump wave frequency conversion and signal amplification by the nonlinear optical process of stimulated four-photon mixing. The amplified signal light is coupled out of the especially designed SFPM fiber by a mode-field conditioning device enabling beam expansion, such that the output core diameter of the mode-field conditioner equals the core diameter of the single-mode fiber used in the transmission link. An important aspect of this invention is that it can be configured for field and/or undersea installation.
摘要翻译： “集成光纤”设备提供光信号放大，以：（1）提供光纤传输系统中海底中继器和/或光再生节点之间的距离增加，或（2）在光数据总线上支持增加数量的多个用户光学处理器/计算机中的网络或多个并行信号处理信道。在后一种情况下，在分频信号幅度低于处理或检测所需的阈值之前，可能会发生更大数量的信号划分。包括光纤组件的组合，其包括：用于将两个输入激光束调谐到用于组合集中信息信号和集中泵浦波的波长选择性单模耦合器的两个光学锥形部分，并且其输出端口之一然后是光学耦合到预定长度的单模光纤。纤维光学参数特别设计用于本征相位匹配，通过受激四光子混合的非线性光学过程来实现泵浦波频率转换和信号放大。放大的信号光通过能够进行光束扩展的模场调节装置耦合到特别设计的SFPM光纤之外，使得模场调理器的输出核心直径等于在传输中使用的单模光纤的纤芯直径链接。本发明的一个重要方面是其可以被配置用于现场和/或海底安装。

4. 发明授权

US4952012A Electro-opto-mechanical cable for fiber optic transmission systems 失效
标题翻译：用于光纤传输系统的光电机械电缆
公开(公告)号：US4952012A
公开(公告)日：1990-08-28
申请号：US272571
申请日：1988-11-17
申请人： Timothy C. Stamnitz
发明人： Timothy C. Stamnitz
IPC分类号： G02B6/44
CPC分类号： G02B6/4416 , G02B6/4427 , G02B6/443 , G02B6/4436
摘要： An electro-opto-mechanical cable includes at least one thinwall steel alloy tube containing at least one single mode fiber and a void filling gel to assure the capability for transmitting low-noise optical phase data. A dielectric annulus and an electrically conductive layer disposed therein helps further assure watertight integrity and power or electrical signal transfer. An optional double-layer contrahelical or three or four layer, torque balanced, steel wire strength member provides additional protection as well as capability to be towed, deployed and recovered from the seafloor at abysmal depths. The steel armor and cable core interface eliminates all intersticial spaces associated with the armor wires to produce a firm, hard cable that experiences minimal residual strain (creep) due to extensive load cycling. A pressure extruded outer jacket aids in assuring the protection of the individual steel wires from point loadings and from strength degradation due to corrosion. Further, the integral steel armor and jacketing structure provides protection for the electro-optic core from abrasion against rock or coral at cable suspension points during sustained cable strumming.
摘要翻译：电光机械电缆包括至少一个含有至少一个单模光纤和空隙填充凝胶的薄壁钢合金管，以确保传输低噪声光相位数据的能力。电介质环和布置在其中的导电层有助于进一步确保水密完整性和功率或电信号传输。可选的双层反向或三层或四层扭矩平衡钢丝强度构件提供额外的保护，以及在深海深处从海底拖拉，部署和回收的能力。钢铠装和电缆芯接口消除了与铠装线相关联的所有间隙，以产生坚固的硬电缆，由于大量的负载循环，其经受最小的残余应变（蠕变）。压力挤压的外护套有助于确保单个钢丝丝免受点载荷的保护和由于腐蚀引起的强度退化。此外，整体钢盔甲和护套结构可保护电光芯在持续的电缆平整过程中不会对电缆悬挂点处的岩石或珊瑚造成磨损。

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