公开(公告)号：US5566259A

公开(公告)日：1996-10-15

申请号：US354706

申请日：1994-12-13

Applicant: Jing-Jong Pan ,  Ming Shih ,  Jingyu Xu

Inventor： Jing-Jong Pan ,  Ming Shih ,  Jingyu Xu

IPC: G02B6/26 ,  G02B6/34 ,  G02F1/09 ,  G02B6/27

CPC classification number: G02F1/093 ,  G02B6/2746 ,  G02B6/278

Abstract: The present invention provides for a two-stage optical isolator with reduced polarization mode dispersion. Each stage has two birefringent polarizers separated by a Faraday rotator. The polarizers in each stage are oriented with respect to each other to operate conventionally as an optical isolator for light in a backward direction. However, the polarizers in each stage are oriented with respect to the polarizers in the other stage so that a polarization mode along one direction, say, the ordinary direction, of light in the first stage travelling toward the second stage is aligned along the opposite, extraordinary, direction in the second stage and vice versa. In this manner the component of any polarization travels the same optical distance through the optical isolator to substantially reduce polarization mode dispersion.

Abstract translation: 本发明提供具有减小的偏振模色散的两级光隔离器。 每个阶段都有两个由法拉第旋转器分离的双折射偏振器。 每个阶段的偏振器相对于彼此定向，作为用于在向后方向上的光的光学隔离器传统地操作。 然而，各级的偏振器相对于其他级的偏振片取向，使得朝向第二级行进的第一级中的一个方向（例如普通方向）的偏振模态沿着相反方向排列， 非凡，第二阶段的方向，反之亦然。 以这种方式，任何偏振的分量通过光隔离器传播相同的光学距离，以显着降低偏振模色散。

公开(公告)号：US4511813A

公开(公告)日：1985-04-16

申请号：US532520

申请日：1983-09-15

Applicant: Jing-Jong Pan

Inventor： Jing-Jong Pan

IPC: H03F3/60 ,  H03F3/193 ,  H03G3/30

CPC classification number: H03F3/604 ,  H03F3/601 ,  H03F2200/198

Abstract: A dual-gate MESFET forms the basic building block for a variety of signal coupling applications for use in adaptive microwave communication systems. By controlled biasing of its electrodes, a dual-gate MESFET may be operated as an active signal combiner/divider device. As such, it is capable of providing controlled signal transfer functions, so that it may be used in a variety of adaptive system applications including controlled switching devices, channelized power dividers, active channel fitters, phase shifters, complex weighting devices, etc.

Abstract translation: 双门MESFET形成用于自适应微波通信系统中的各种信号耦合应用的基本构建块。 通过其电极的受控偏置，双栅极MESFET可以作为有源信号组合器/分配器器件来操作。 因此，它能够提供受控的信号传递功能，使得其可以用于各种自适应系统应用中，包括受控开关装置，信道化功率分配器，有源信道装配器，移相器，复合加权装置等。

公开(公告)号：US20050280888A1

公开(公告)日：2005-12-22

申请号：US11161059

申请日：2005-07-21

Applicant: Jing-Jong Pan ,  Xiangdong Qiu ,  Kejian Guan ,  Mingjie Zhang

Inventor： Jing-Jong Pan ,  Xiangdong Qiu ,  Kejian Guan ,  Mingjie Zhang

IPC: G02B6/26 ,  G02B6/32 ,  G02B6/34 ,  G02B6/42 ,  H01S3/067 ,  H01S3/094 ,  H01S3/0941 ,  H01S3/13 ,  H01S3/131 ,  H01S5/022 ,  H01S3/00

CPC classification number: G02B6/4201 ,  G02B6/2746 ,  G02B6/29361 ,  G02B6/29389 ,  G02B6/327 ,  G02B6/4204 ,  G02B6/4206 ,  G02B6/4208 ,  G02B6/4209 ,  G02B6/4215 ,  G02B6/424 ,  G02B6/4263 ,  G02B6/4269 ,  G02B6/4286 ,  H01S3/005 ,  H01S3/0064 ,  H01S3/0078 ,  H01S3/06704 ,  H01S3/06754 ,  H01S3/06766 ,  H01S3/094003 ,  H01S3/094053 ,  H01S3/09415 ,  H01S3/1301 ,  H01S3/1305 ,  H01S3/1312 ,  H01S3/1608 ,  H01S5/0064 ,  H01S5/02212 ,  H01S5/02284 ,  H01S5/02296 ,  H01S5/0683

Abstract: An EDFA with integrated input and output modules is presented. The integrated input module has a packaged pump laser diode mounted to the metal EDFA package to provide a heat sink for the pump laser diode which sends the pump laser light over a optical fiber section connected to the amplifying erbium-doped optical fiber section. The fiber section is formed from an optical fiber which better matches the transmission modes in the erbium-doped optical fiber section and has an end subsection of the single mode fiber for a larger numerical aperture. Collimating lenses also increase the coupling efficiency of the laser diode to the erbium-doped fiber section. The integrated output module has a photodiode with a tap filter to monitor the output power of the EDFA, an optical isolator to prevent interference in the erbium-doped optical fiber section. With a twin optical isolator, the integrated input and output modules can be arranged in different ways and combinations with the erbium-doped optical fiber section. The resulting EDFAs can be manufactured relatively inexpensively into an very small packages compared to current EDFA packages.

Abstract translation: 介绍了具有集成输入和输出模块的EDFA。 集成输入模块具有安装在金属EDFA封装上的封装泵激光二极管，为泵激光二极管提供散热器，泵浦激光二极管将泵浦激光发射到与放大掺铒光纤部分连接的光纤部分上。 光纤部分由光纤形成，该光纤更好地匹配掺铒光纤部分的传输模式，并且具有用于更大数值孔径的单模光纤的端部部分。 准直透镜还增加了激光二极管与掺铒光纤部分的耦合效率。 集成输出模块具有带有抽头滤波器的光电二极管，用于监视EDFA的输出功率，光隔离器可防止铒掺杂光纤部分的干扰。 使用双光隔离器，集成输入和输出模块可以以掺铒光纤部分的不同方式和组合进行布置。 与目前的EDFA封装相比，所得到的EDFA可以相对廉价地制造成非常小的封装。

公开(公告)号：US06606446B1

公开(公告)日：2003-08-12

申请号：US08884880

申请日：1997-06-30

Applicant: Ronggui Shen ,  Jingyu Xu ,  Jing-Jong Pan

Inventor： Ronggui Shen ,  Jingyu Xu ,  Jing-Jong Pan

IPC: G02B600

CPC classification number: G02B3/0087 ,  G02B6/241 ,  G02B6/262 ,  G02B6/266 ,  G02B6/32

Abstract: An improved optic attenuator controllably filters an optical signal after the signal has been expanded and collimated. The optical signals are preferably expanded and refocused by a single GRIN lens, the signal passing through a variable filter between the GRIN lens and a reflector, and again between the reflector and the GRIN lens. Both the input and output fibers can be held within a single sleeve in alignment with the GRIN lens. The amount of attenuation can be indicated by a potentiometer.

Abstract translation: 改进的光衰减器在信号被扩展和准直之后可控地滤波光信号。 光信号优选地被单个GRIN透镜扩展和重新聚焦，信号通过GRIN透镜和反射器之间的可变滤光器，并且再次在反射器和GRIN透镜之间。 输入和输出光纤都可以保持在与GRIN镜头对准的单个套筒内。 衰减量可以由电位器来表示。

公开(公告)号：US06249625B1

公开(公告)日：2001-06-19

申请号：US09342456

申请日：1999-06-28

Applicant: Jing-Jong Pan

Inventor： Jing-Jong Pan

IPC: G02B626

CPC classification number: G02B6/2937 ,  G02B6/02042 ,  G02B6/2856 ,  G02B6/29383

Abstract: The present invention provides for a joined optical fiber subassembly having first, second and third sections. The first section has a plurality of separate optical fibers with each optical fiber having a core and cladding. The second section, which adjoins the first section, has the optical fibers joined so that a single cladding encloses the cores of the optical fibers. The third section, which adjoins the second section, has the single cladding enclosing the cores of the optical fibers. With the joined optical fiber subassembly as a constituent element, a subunit which can be used in many fiberoptic devices can be created.

Abstract translation: 本发明提供一种具有第一，第二和第三部分的连接的光纤子组件。 第一部分具有多个单独的光纤，每个光纤具有芯和包层。 与第一部分相邻的第二部分具有连接的光纤，使得单个包层包围光纤的芯。 与第二部分相邻的第三部分具有包围光纤芯的单个包层。 以加入的光纤子组件作为组成元件，可以创建可用于许多光纤设备中的子单元。

公开(公告)号：US06240220B1

公开(公告)日：2001-05-29

申请号：US09124102

申请日：1998-07-29

Applicant: Jing-Jong Pan ,  Feng-Qing Zhou

Inventor： Jing-Jong Pan ,  Feng-Qing Zhou

IPC: G02B600

CPC classification number: G02B6/29395 ,  G02B6/022 ,  G02B6/29317

Abstract: A fiber optic package and methods for varying the tension within a fiber Bragg grating or other fiber-based optical device subjects a fiber (having the fiber Bragg grating written therein) to a controlled strain. The resulting strain in the fiber produces a desired and predetermined change in the grating wavelength.

Abstract translation: 用于改变光纤布拉格光栅或其他基于光纤的光学装置中的张力的光纤封装和方法使得光纤（其中写入光纤布拉格光栅）受控于应变。 纤维中产生的应变产生光栅波长所需和预定的变化。

公开(公告)号：US06195479B1

公开(公告)日：2001-02-27

申请号：US09340863

申请日：1999-06-28

Applicant: Jing-Jong Pan

Inventor： Jing-Jong Pan

IPC: G02B626

CPC classification number: G02B6/2726 ,  G02B6/266 ,  G02B6/2773 ,  G02F1/1326 ,  G02F1/31 ,  G02F2201/17

Abstract: A polarization-insensitive fiberoptic reflective variable aftenuator and on-off switch is provided. The device has a sleeve holding a pair of optical fibers, a first, second and third birefringent crystals, a collimating GRIN lens, a liquid crystal cell and a mirror element. The first birefringent crystal is fixed over an end facet of one of the optical fiber pair, and the second and third birefringent crystals are fixed over an end facet of the other of the optical fiber pair. The GRIN lens has a first end face proximate the first, second and third birefringent crystals and the liquid crystal cell is located between the mirror element and a second end face of the GRIN lens. Responsive to preselected voltages applied to its electrical terminals, the liquid crystal cell is in a first state or a second state. The end facets of the pair of optical fibers, the first, second and third birefringent crystals, the GRIN lens, the liquid crystal cell, and the mirror element are arranged and oriented with respect to each other so that light from one optical fiber passes through, and back from, the first, second and third birefringent crystals, the GRIN lens, the liquid crystal cell and the mirror element into the other optical fiber when the liquid crystal cell is in the On state, and light from one optical fiber passes through, and back from, the first, second and third birefringent crystals, the GRIN lens, the liquid crystal cell and the mirror element , but not into the other second optical fiber when the liquid crystal cell is in the Off state. Light signal traveling between the first and second optical fibers can be attenuated by voltages intermediate the voltage corresponding to the On and Off states.

Abstract translation: 提供了偏振不敏感光纤反射式可变光源和开 - 关开关。 该装置具有保持一对光纤的套筒，第一，第二和第三双折射晶体，准直的GRIN透镜，液晶单元和反射镜元件。 第一双折射晶体固定在光纤对之一的端面上，第二和第三双折射晶体固定在另一个光纤对的端面上。 GRIN透镜具有靠近第一，第二和第三双折射晶体的第一端面，并且液晶单元位于镜元件和GRIN透镜的第二端面之间。 响应于施加到其电端子的预选电压，液晶单元处于第一状态或第二状态。 一对光纤的端面，第一，第二和第三双折射晶体，GRIN透镜，液晶单元和反射镜元件相对于彼此布置和取向，使得来自一根光纤的光通过 ，并且当液晶单元处于“开”状态时，从第一，第二和第三双折射晶体，GRIN透镜，液晶单元和反射镜元件返回到另一光纤中，并且来自一个光纤的光通过 从第一，第二和第三双折射晶体，GRIN透镜，液晶单元和反射镜元件返回，而当液晶单元处于关闭状态时不再进入其它第二光纤。 在第一和第二光纤之间行进的光信号可以通过对应于On和Off状态的电压之间的电压来衰减。

公开(公告)号：US6018534A

公开(公告)日：2000-01-25

申请号：US114712

申请日：1998-07-13

Applicant: Jing-Jong Pan ,  Yuan Shi

Inventor： Jing-Jong Pan ,  Yuan Shi

IPC: H01S3/06 ,  H01S3/067 ,  H01S3/08 ,  H01S3/30

CPC classification number: H01S3/0675

Abstract: A fiber Bragg grating DFB-DBR interactive laser is provided by an optical fiber section which is doped with at least one gain-inducing material. At each end of the section there is a fiber Bragg grating which operates as part of a fiber DBR laser. Between these two gratings there is a third fiber Bragg grating which has a 90.degree. phase shift region. The third fiber Bragg grating effectively operates as part of a fiber DFB laser. Each of the fiber Bragg gratings has a narrow reflective linewidth centered about the same wavelength so that the optical fiber section operates as a fiber Bragg grating DFB-DBR interactive laser upon sufficient pumping energy. The resulting fiber Bragg grating DFB-DBR interactive laser can be appropriately connected to pumping laser sources and WDM couplers to create fiber laser sources which are particularly adaptable to fiberoptic networks, particularly WDM and DWDM networks.

Abstract translation: 光纤布拉格光栅DFB-DBR交互式激光器由掺杂有至少一种增益诱导材料的光纤部分提供。 在该部分的每一端都有一个光纤布拉格光栅，其作为光纤DBR激光器的一部分。 在这两个光栅之间，有一个具有90°相移区域的第三个光纤布拉格光栅。 第三光纤布拉格光栅有效地作为光纤DFB激光器的一部分。 每个光纤布拉格光栅具有以相同波长为中心的窄反射线宽，使得光纤部分在足够的泵浦能量下作为光纤布拉格光栅DFB-DBR交互式激光器工作。 所得到的光纤布拉格光栅DFB-DBR交互式激光器可以适当地连接到泵浦激光源和WDM耦合器，以创建特别适用于光纤网络，特别是WDM和DWDM网络的光纤激光源。

公开(公告)号：US5889904A

公开(公告)日：1999-03-30

申请号：US797375

申请日：1997-02-07

Applicant: Jing-Jong Pan ,  Ming Shih ,  Jingyu Xu

Inventor： Jing-Jong Pan ,  Ming Shih ,  Jingyu Xu

IPC: G02B6/32 ,  G02B6/00 ,  G02B6/26 ,  G02B6/28 ,  G02B6/293 ,  G02B6/34 ,  G02B6/42 ,  H04B10/02 ,  H04J14/00 ,  H04J14/02

CPC classification number: G02B6/2746 ,  G02B6/2848 ,  G02B6/29311 ,  G02B6/29362 ,  G02B6/2937 ,  G02B6/2938 ,  G02B6/4246 ,  H04J14/02 ,  G02B6/327 ,  Y10S372/703

Abstract: A fiberoptic coupler capable of many functions is presented. The basic fiberoptic coupler has a first sleeve, a second sleeve, a first collimating GRIN or conventional lens, and a second collimating GRIN or conventional lens. The first sleeve holds end sections of two or more input optical fibers along the longitudinal axis of the sleeve. The second sleeve holds an end section of at least one output optical fiber. The end face of the second sleeve faces the first sleeve end face. The first collimating GRIN or conventional lens in front of the first sleeve end face collimates light signals from the input optical fibers and the second collimating GRIN or conventional lens in front of the second sleeve end face focusses light signals from at least one of the input optical fibers into the single output fiber, or at least one of the output optical fibers. With only one output fiber the coupler operates as a combiner. If more than one output fiber is held by the second sleeve, the input and output fibers can be arranged so that a light signal from one input fiber is sent to one output fiber. For added functionality, optical elements, such as isolators and wavelength-dependent filters, can be inserted between the first and second collimating lenses.

Abstract translation: 提出了一种具有很多功能的光纤耦合器。 基本光纤耦合器具有第​​一套筒，第二套筒，第一准直GRIN或常规透镜以及第二准直GRIN或常规透镜。 第一套筒沿着套筒的纵轴保持两个或更多个输入光纤的端部。 第二套筒保持至少一根输出光纤的端部。 第二套筒的端面面向第一套筒端面。 在第一套筒端面前面的第一准直GRIN或常规透镜准直来自输入光纤的光信号，并且第二套筒端面前面的第二准直GRIN或常规透镜聚焦来自至少一个输入光学器件的光信号 纤维进入单个输出光纤，或至少一个输出光纤。 只有一个输出光纤，耦合器作为组合器工作。 如果多个输出光纤被第二套筒保持，则输入和输出光纤可被布置成使得来自一个输入光纤的光信号被发送到一个输出光纤。 为了增加功能，可以在第一和第二准直透镜之间插入诸如隔离器和波长依赖滤光器之类的光学元件。

公开(公告)号：US5815614A

公开(公告)日：1998-09-29

申请号：US779133

申请日：1997-01-06

Applicant: Jing-Jong Pan

Inventor： Jing-Jong Pan

IPC: G02B6/26 ,  G02B6/32 ,  G02B6/35

CPC classification number: G02B6/3582 ,  G02B6/262 ,  G02B6/32 ,  G02B6/3504 ,  G02B6/3524 ,  G02B6/3526 ,  G02B6/327 ,  G02B6/355 ,  G02B6/3558 ,  G02B6/3594

Abstract: An improved optical switch having a first optical fiber and a plurality of N optical fibers. The first optical fiber forms an optical path with any one of the N optical fibers by an alignment of a longitudinal axis of an end of the first optical fiber with a longitudinal axis of an end of the one of N optical fibers. A switch in optical path is performed by a relative movement of the first optical fiber with respect to the N optical fibers for a realignment of the longitudinal axis of the end of the first optical fiber with a longitudinal axis of an end of another one of the N optical fibers.

Abstract translation: 一种具有第一光纤和多个N根光纤的改进的光开关。 第一光纤通过第一光纤的端部的纵向轴线与N根光纤之一的纵向轴线的对准来与N个光纤中的任何一个形成光路。 通过第一光纤相对于N个光纤的相对运动来执行光路中的开关，用于使第一光纤端部的纵向轴线与另一个光纤端部的端部的纵向轴线重新对准 N光纤。