-
31.发明授权公开(公告)号：US06504647B1
公开(公告)日：2003-01-07
申请号：US09633785
申请日：2000-08-07
申请人： Masayuki Shigematsu
发明人： Masayuki Shigematsu
IPC分类号： H04B1017
CPC分类号： H04B10/291
摘要： An optical fiber amplifier has an optical amplification portion, pumping light source, and optical circulator portion. The optical amplification portion has a signal input port, signal output port, and two erbium-doped optical fibers. These optical fibers are connected in series between the signal input port and the signal output port. The pumping light source is optically coupled to the optical fibers through an optical coupler to supply pumping light to the optical fibers. The optical circulator portion supplies backward ASE light obtained from the signal input port of the optical amplification portion to the signal output port thereof. With this arrangement, not only forward ASE light but also backward ASE light can be supplied to the optical amplification portion. There is no additional optical fiber, which is not pumped by light for the light source, to use both ASE light components for optical amplification.
摘要翻译： 光纤放大器具有光放大部分，泵浦光源和光环行器部分。 光放大部分具有信号输入端口，信号输出端口和两个掺铒光纤。 这些光纤串联在信号输入端口和信号输出端口之间。 泵浦光源通过光耦合器光耦合到光纤，以向光纤提供泵浦光。 光环行器部分将从光放大部分的信号输入端口获得的ASE光向其信号输出端提供。 利用这种布置，不仅可以向前向ASE光而且向后的ASE光提供给光放大部分。 没有其他光纤不被光源泵浦，用于光放大的ASE光分量。
-
公开(公告)号：US06415078B1
公开(公告)日：2002-07-02
申请号：US08633522
申请日：1996-04-17
IPC分类号： G02B634
CPC分类号： G02B6/3861 , G02B6/02171 , G02B6/02209 , G02B6/3845 , G02B6/4203 , G02B6/4204 , G02B6/4207 , G02B6/4225 , G02B6/4237 , G02B6/4238 , H01S5/02284 , H01S5/147
摘要： In a method of manufacturing a laser light source according to the present invention, an optical fiber having a diffraction grating is produced in which a plurality of refractive index changing portions are formed along the direction of an optical axis of the optical fiber. Then, the optical fiber having the diffraction grating is inserted into a ferrule, the optical fiber is bonded thereat, and the end surface of the ferrule is ground. Further, a laser oscillating device is prepared, and the laser oscillating device is coupled with the optical fiber having the diffraction grating and being inserted in the ferrule.
摘要翻译： 在根据本发明的激光光源的制造方法中，制造了具有衍射光栅的光纤，其中沿着光纤的光轴方向形成有多个折射率变化部。 然后，将具有衍射光栅的光纤插入到套圈中，将光纤接合在其上，并且将套圈的端面研磨。 此外，制备激光振荡装置，并且激光振荡装置与具有衍射光栅的光纤耦合并插入到套圈中。
-
公开(公告)号：US06259554B1
公开(公告)日：2001-07-10
申请号：US09402063
申请日：1999-09-28
IPC分类号： H01S300
CPC分类号： H04B10/2972 , H04B10/03 , H04B10/0775 , H04B10/0777 , H04B10/2918 , H04B2210/078 , H04B2210/08
摘要： A repeater station 10 detects whether or not an abnormality exists in each of signal light and monitor light having arrived from a terminal station 1 or a repeater station 20, and controls, according to the result of detection, operations of optical amplifiers 11 and 12 and the monitor light. In the case where both of the signal light and monitor light arriving from the terminal station 1 via the optical transmission line for the downstream direction are abnormal, the optical amplifier 11 for the downstream direction stops its amplifying operation by itself, whereas a monitor control apparatus 13 stops the amplifying operation of the other optical amplifier for the upstream direction and also stops transmitting the monitor light to the terminal station 1 in the upstream direction.
摘要翻译： 中继站10检测在从终端站1或中继站20到达的信号光和监视光中的每一个中是否存在异常，并且根据检测结果控制光放大器11和12的操作和 显示器灯。 在从终端站1经由用于下游方向的光传输线路到达的信号光和监视光都是异常的情况下，用于下游方向的光放大器11自身停止其放大操作，而监视器控制装置 13停止上游侧的另一光放大器的放大动作，并且在上游方向上停止向终端站1发送监视光。
-
34.发明授权
公开(公告)号：US6067392A
公开(公告)日：2000-05-23
申请号：US860697
申请日：1997-06-16
申请人： Toshinori Wakami , Masayuki Shigematsu , Yoshiaki Terasawa , Akira Inoue , Masakazu Shigehara , Toru Iwashima
发明人： Toshinori Wakami , Masayuki Shigematsu , Yoshiaki Terasawa , Akira Inoue , Masakazu Shigehara , Toru Iwashima
CPC分类号： H01S3/0675 , G02B6/0218 , G02B6/0219 , G02B6/3845
摘要： A diffraction grating portion (12) is formed in an optical fiber (10), having a diameter of 125 .mu.m and serving to transmit light, along its optical axis. The optical fiber is concentrically surrounded by a lower coating portion (14) having an outer diameter of 300 .mu.m and consisting of a silicone resin. The lower coating portion is concentrically surrounded by a coating portion (16) having an outer diameter of 900 .mu.m and consisting of a liquid crystal polymer, e.g., polyester amide. The coating portion is further surrounded by an outermost coating portion (18) having an outer diameter of 1 mm and consisting of a UV curing resin colored for identification. Both the optical fiber (10) and the lower coating portion (14) have positive thermal expansion coefficients. In contrast to this, the coating portion (16) consisting of the liquid crystal polymer has a negative thermal expansion coefficient.
摘要翻译： PCT No.PCT / JP96 / 03000 Sec。 371日期：1997年6月16日 102（e）日期1996年6月16日PCT提交1996年10月16日PCT公布。 公开号WO97 / 14983 日期1997年04月24日衍射光栅部分（12）形成在光纤（10）中，其直径为125μm，用于沿其光轴透射光。 光纤由外部为300μm的下部涂层部分（14）同心围绕，由硅树脂构成。 下涂层部分由外径为900μm的涂层部分（16）同心地围绕，并由液晶聚合物例如聚酯酰胺组成。 涂层部分进一步被外径为1mm的最外涂层部分（18）包围，并由用于识别的紫外线固化树脂组成。 光纤（10）和下涂层部分（14）均具有正的热膨胀系数。 与此相反，由液晶聚合物构成的涂布部分（16）具有负的热膨胀系数。
-
公开(公告)号：US5640269A
公开(公告)日：1997-06-17
申请号：US622149
申请日：1996-03-27
IPC分类号： G02B6/00 , G02B6/02 , H01S3/06 , H01S3/067 , H01S3/094 , H01S3/0941 , H01S3/10 , H01S3/16 , H01S3/17 , H04J14/02 , H01S3/00
CPC分类号： H04B10/2912 , H01S3/06754 , H04B10/291 , H04B10/2935 , H04B10/294 , H04J14/0221 , H01S2301/04 , H01S3/1608 , H04B2210/003
摘要： An optical fiber amplifier comprises a composite optical fiber for receiving signal light and excitation light, amplifying the signal light and emitting the amplified signal light, comprising at least two kinds of optical fibers serially coupled each having a glass composition selected from at least two kinds of rare-earth-doped glass compositions, and excitation means for generating excitation light and supplying it to the composite optical fiber. Then, an optical fiber amplifier which reduces the wavelength dependency of gain in various wavelength ranges in wavelength division multiplexing transmission or in optical analog transmission, and which maintains an energy efficiency for amplification, an optical fiber amplifier which makes a wavelength at a gain peak to a predetermined one in accordance with intensities of various input lights, and an optical amplifier repeater comprising this optical fiber amplifier are provided.
摘要翻译： 光纤放大器包括用于接收信号光和激发光的复合光纤，放大信号光并发射放大的信号光，包括至少两种串联耦合的光纤，每个光纤具有选自以下的至少两种 稀土掺杂的玻璃组合物，以及用于产生激发光并将其提供给复合光纤的激励装置。 然后，在波分多路复用传输或光模拟传输中降低各种波长范围的增益的波长依赖性并且保持放大的能量效率的光纤放大器使波长为增益峰值的光纤放大器 提供根据各种输入光的强度的预定值，以及包括该光纤放大器的光放大器中继器。
-
36.发明授权
公开(公告)号：US5430822A
公开(公告)日：1995-07-04
申请号：US127338
申请日：1993-09-28
IPC分类号： G02B6/00 , G02B6/02 , G02B6/34 , H04B10/25 , H04B10/2507 , H04B10/2525 , G02B6/26
CPC分类号： G02B6/29377 , H04B10/2525 , G02B6/29376 , H04B2210/252
摘要： An optical communication system that compensate for the dispersion of an optical fiber serving as a transmission path is provided. In its simplest form a dispersion compensating fiber having a sufficient length to compensate for the chromatic dispersion of the optical fiber is divided into portions, each portion having a length selected so as to maintain a linear characteristic of a relative intensity noise of the dispersion compensating fiber, and the divided portions of the dispersion compensating fiber are inserted in the path of the optical fiber while they are optically separated.
摘要翻译： 提供补偿作为传输路径的光纤的色散的光通信系统。 在其最简单的形式中，具有足够长度以补偿光纤的色散的色散补偿光纤被分成部分，每个部分具有选择的长度，以便保持色散补偿光纤的相对强度噪声的线性特性 并且色散补偿光纤的分割部分在光学分离的同时插入光纤的路径中。
-
公开(公告)号：US5214524A
公开(公告)日：1993-05-25
申请号：US896793
申请日：1992-06-09
IPC分类号： H04B10/152 , H04B10/155
CPC分类号： H04B10/504 , H04B10/5059 , H04B10/541 , H04B10/58
摘要： An optical communication system of the optical feed forward type in which a main optical signal and a distortion signal are transmitted by a common optical fiber line from the transmission part to the reception part.
摘要翻译： 一种光学前馈型的光通信系统，其中主光信号和失真信号通过公共光纤线路从发射部分传输到接收部分。
-
公开(公告)号：US4848872A
公开(公告)日：1989-07-18
申请号：US217998
申请日：1988-07-12
IPC分类号： G01R31/317 , G01M11/00 , G01R31/28 , G02B6/00 , G02B6/24 , G02B6/28 , G02B6/42 , G02B26/02 , G02F1/13 , G02F2/00
CPC分类号： G01M11/088 , G01M11/33 , G01M11/35 , G02B6/4286 , G02B6/4289
摘要： An optical core collator is disclosed wherein a light is modulated at a near end portion of an optical fiber by repeating applying a bending to and removing the applied bending from said optical fiber with a mechanical means, and the thus modulated light is detected with a photosensor at a far end portion of said optical fiber while applying a bending to said optical fiber with another mechanical means, thereby the cores of said optical fiber can be collated.
摘要翻译： 公开了一种光学核心校准器，其中通过用机械装置（3A，4A）重复施加弯曲并从所述光纤（1）去除所施加的弯曲，其中光在光纤（1）的近端部分被调制， ，并且用所述光纤（1）的远端部分的光电传感器（5B）检测由此调制的光，同时用另一机械装置（3B，4B）向所述光纤施加弯曲，由此所述光学 纤维可以整理。
-
公开(公告)号：US4840482A
公开(公告)日：1989-06-20
申请号：US182022
申请日：1988-04-15
申请人： Masayuki Shigematsu , Shuzo Suzuki
发明人： Masayuki Shigematsu , Shuzo Suzuki
IPC分类号： G02B6/00 , G02B6/28 , H04B10/00 , H04B10/03 , H04B10/079 , H04B10/2507
摘要： A method of identifying an aimed coated fiber in an optical transmission network. Identification of the aimed coated fiber in the optical transmission network is accomplished between its upstream and downstream ends during transmission of an optical signal without disrupting the capabilities of an optical communication network or causing deterioration of the optical signal being transmitted.
-
-
-
-
-
-
-
-
搜索结果
39 条记录 (耗时 0.031 秒)