公开(公告)号：US5317655A

公开(公告)日：1994-05-31

申请号：US20471

申请日：1993-02-22

Applicant: Jing-Jong Pan

Inventor： Jing-Jong Pan

IPC: G02B6/26 ,  G02B6/32 ,  G02B6/38 ,  G02B6/42 ,  G02B27/28 ,  G02F1/09 ,  G02B6/00

CPC classification number: G02B6/2746 ,  G02B6/32 ,  G02B6/4208 ,  G02F1/093 ,  G02B6/3822 ,  G02F2202/20

Abstract: An improved optical isolator of the type having an input optical fiber, a first GRIN lens, a first polarizer, a optical rotator, a second polarizer, a second GRIN lens and an output optical fiber. Lithium niobate and lithium tantalate birefringent crystals are used for lowered costs and high performance. Improvements also include polishing the end of the input optical fiber at a slant and covering the end with a window coated with antireflection material. The surface of the GRIN lens facing the end of the input optical fiber is slant-polished reciprocally and spaced apart with gap which avoids Fabry-Perot interference.

Abstract translation: 具有输入光纤，第一GRIN透镜，第一偏振器，光旋转器，第二偏振器，第二GRIN透镜和输出光纤的类型的改进型光隔离器。 铌酸锂和钽酸锂双折射晶体用于降低成本和高性能。 改进还包括以倾斜抛光输入光纤的端部并且用涂有防反射材料的窗口覆盖端部。 面对输入光纤端面的GRIN透镜的表面相互倾斜抛光并间隔开，避免了法布里 - 珀罗干涉。

公开(公告)号：US5276747A

公开(公告)日：1994-01-04

申请号：US6889

申请日：1993-01-21

Applicant: Jing-Jong Pan

Inventor： Jing-Jong Pan

IPC: G02F1/313 ,  G02B5/30 ,  G02B6/26 ,  G02B6/34 ,  G02B6/42 ,  G02F1/09 ,  G02F1/1333 ,  G02F1/1335 ,  G02B6/32

CPC classification number: G02F1/1335 ,  G02B5/3083 ,  G02B6/266 ,  G02F1/093 ,  G02F1/1326 ,  G02B6/2746 ,  G02B6/278 ,  G02B6/4208 ,  G02F2203/06 ,  G02F2203/48

Abstract: An optical device which controls the strength of an optical signal from an input fiber to an output fiber responsive to a signal on a control terminal. The device has a first GRIN lens associated with the input fiber, a first birefringent polarizer, a liquid crystal cell, a second birefringent polarizer and a second GRIN lens associated with the output fiber. The liquid crystal cell, located between the first and second polarizers and connected to a control terminal, controllably rotates the optical signal from the optical axis of the first polarizer toward the optical axis of the second polarizer responsive to the signal on said control terminal. The operation of the device is independent of the polarization of the optical signal in the input fiber. Furthermore, the device can be operated as an optical switch or an optical attenuator by suitably arranging the axes of the polarizers and liquid crystal cell.

Abstract translation: 一种光学装置，其响应于控制终端上的信号控制来自输入光纤到输出光纤的光信号的强度。 该装置具有与输入光纤相关联的第一GRIN透镜，第一双折射偏振器，液晶单元，第二双折射偏振器和与输出光纤相关联的第二GRIN透镜。 位于第一和第二偏振器之间并连接到控制端子的液晶单元响应于所述控制端子上的信号，可控制地将光信号从第一偏振器的光轴朝向第二偏光器的光轴旋转。 器件的操作与输入光纤中光信号的极化无关。 此外，通过适当地布置偏振器和液晶单元的轴，该装置可以作为光开关或光衰减器来操作。

公开(公告)号：US5016963A

公开(公告)日：1991-05-21

申请号：US390795

申请日：1989-08-08

Applicant: Jing-Jong Pan

Inventor： Jing-Jong Pan

IPC: G02B6/245 ,  G02B6/255 ,  G02B6/28 ,  G02B6/32

CPC classification number: G02B6/2848 ,  G02B6/245 ,  G02B6/2552 ,  G02B6/32

Abstract: A low-cost, high performance 1.times.N fiber optic coupler where N>16 is presented. The coupler has a GRIN lens having an first optic fiber aligned with the optical axis of the lens at one end of the lens. The first optic fiber ends in a microlens. At the other end of the GRIN lens a bundle of tapered second optic fibers is centered on the optical axis of the lens.

Abstract translation: 提供N> 16的低成本，高性能1xN光纤耦合器。 耦合器具有在透镜的一端具有与透镜的光轴对准的第一光纤的GRIN透镜。 第一个光纤以微透镜结束。 在GRIN透镜的另一端，一束锥形第二光纤以透镜的光轴为中心。

公开(公告)号：US4396833A

公开(公告)日：1983-08-02

申请号：US227373

申请日：1981-01-22

Applicant: Jing-Jong Pan

Inventor： Jing-Jong Pan

IPC: H01P1/15 ,  H01J40/14

CPC classification number: H01P1/15

Abstract: An optically controlled integrated circuit device for microwave signalling/switching is configured of a microstrip structure formed on a thin layer of active semiconductor material, such as doped GaAs or silicon, that is disposed atop an insulator substrate. A gap is provided in the conductive strip and radiant energy is directed onto the exposed surface of the active layer therebeneath for the purpose of bridging the gap via a surface-generated charge carrier region.Electrical off-mode isolation in the gap is obtained by a narrow ribbon of conductive material disposed on the surface of the thin active layer at the gap between separated ends of the microstrip. This narrow ribbon is connected to a bias potential (e.g. ground), to create an isolation-enhancing depletion region in that portion of the active layer directly beneath the narrow ribbon. The thus generated depletion region provides input/output isolation in the gap between the separated ends of the microstrip.To turn the switch on, the gap is illuminated with a beam of light, in response to which electron-hole pairs in the semiconductor material of the active layer are generated. This generation of electron-hole pairs increases the carrier concentration, reduces the cross-sectional area of the depletion region and increases current flow in the gap, so that the separated ends of the microstrip are effectively electrically connected. To turn the device off, the beam of light is extinguished, cancelling the photo generated carrier and restoring the isolating depletion region.

Abstract translation: 用于微波信号/切换的光控集成电路装置由形成在诸如掺杂的GaAs或硅的薄层上的微带结构构成，其被布置在绝缘体衬底的顶部。 在导电带中提供间隙，并且辐射能被引导到其下面的有源层的暴露表面上，以便经由表面产生的电荷载体区域桥接间隙。 通过在微带的分离端之间的间隙处设置在薄有源层的表面上的导电材料的窄带获得间隙中的电离模式隔离。 该窄带连接到偏置电位（例如接地），以在窄带的正下方的有源层的该部分中产生隔离增强耗尽区。 由此产生的耗尽区域在微带的分离端之间的间隙中提供输入/输出隔离。 为了打开开关，用光束照射间隙，响应于生成有源层的半导体材料中的电子 - 空穴对。 这一代电子 - 空穴对增加了载流子浓度，减少了耗尽区的横截面积，并且增加了间隙中的电流，使得微带的分离端被有效地电连接。 要关闭设备，光束熄灭，取消照片生成的载体并恢复隔离耗尽区域。

公开(公告)号：US4277764A

公开(公告)日：1981-07-07

申请号：US932305

申请日：1978-08-09

Applicant: Charles D. Rosier ,  Jing-Jong Pan ,  Donald K. Belcher

Inventor： Charles D. Rosier ,  Jing-Jong Pan ,  Donald K. Belcher

IPC: H03F3/60 ,  H03H11/04 ,  H03F3/16 ,  H03F3/191

CPC classification number: H03F3/601

Abstract: A microwave transistor circuit includes a pair of field effect transistors connected in cascade via a standard 50 ohm transmission line having a length equal to one-half the wavelength of the operating frequency range of the circuit. Although the field effect transistors are individually unstable at microwave frequencies, by cascading these transistors the reverse transmission coefficient is sufficiently reduced to render the overall circuit unconditionally stable. In addition, the transmission line is opened to provide physical isolation between the transistors for d.c. bias isolation and a capacitor is connected therein to provide for RF continuity.

Abstract translation: 微波晶体管电路包括通过标准50欧姆传输线级联连接的一对场效应晶体管，其长度等于电路工作频率范围的一半波长。 尽管场效应晶体管在微波频率下单独不稳定，但通过级联这些晶体管，反向传输系数被充分降低，使整个电路无条件稳定。 此外，传输线被打开以提供用于直流的晶体管之间的物理隔离。 偏置隔离和电容器连接在其中以提供RF连续性。

公开(公告)号：US4245193A

公开(公告)日：1981-01-13

申请号：US932303

申请日：1978-08-09

Applicant: Jing-Jong Pan ,  Milton P. Arnold

Inventor： Jing-Jong Pan ,  Milton P. Arnold

IPC: H03B5/32 ,  H03B21/02 ,  H03B3/04 ,  H03B5/30

CPC classification number: H03B5/326 ,  H03B21/02

Abstract: An oscillation control circuit in which the output of an unstabilized oscillator is controlled using a bulk acoustic wave resonator. The circuit includes a high and low frequency loop with the power output of the oscillator being divided and supplied along respective paths to the high and low frequency portions of the loop. The high frequency portion of the loop, which includes the BAW resonator, operates at the output frequency f.sub.0, which is equal to the sum of the oscillator frequency f.sub.1 and the frequency f.sub.2 of the low frequency portion of the loop. A first mixer receives the frequencies f.sub.0 and f.sub.1 and produces an output f.sub.2 in the low frequency portion of the loop, while a second mixer receives the frequencies f.sub.1 and f.sub.2 and produces an output f.sub.0 in the high frequency portion of the loop. In this way, as the oscillator output frequency f.sub.1 varies, the frequency f.sub.2 in the low portion of the frequency loop varies inversely, so that the up-down conversion performed by the system maintains f.sub.0 constant.

Abstract translation: 使用体声波谐振器来控制不稳定振荡​​器的输出的振荡控制电路。 该电路包括高频和低频环路，其中振荡器的功率输出沿相应的路径分配并提供给环路的高频和低频部分。 包括BAW谐振器的环路的高频部分以等于环路低频部分的振荡器频率f1和频率f2之和的输出频率f0工作。 第一混频器接收频率f0和f1，并在环路的低频部分产生输出f2，而第二混频器接收频率f1和f2，并在环路的高频部分产生输出f0。 这样，由于振荡器的输出频率f1变化，所以频率环路的低频部分的频率f2相反地变化，所以由系统执行的上下转换维持f0恒定。

公开(公告)号：US07362504B2

公开(公告)日：2008-04-22

申请号：US11164992

申请日：2005-12-13

Applicant: Jing-Jong Pan ,  Ming Zhou ,  Hong-Xi Zhang ,  Feng-Qing Zhou

Inventor： Jing-Jong Pan ,  Ming Zhou ,  Hong-Xi Zhang ,  Feng-Qing Zhou

IPC: G02B27/28

CPC classification number: G02B6/272 ,  G02B6/2746 ,  G02B6/2766 ,  G02F1/093

Abstract: Miniature optical devices, including circulator array devices, are fabricated using thin film coating technology. A typical optical device includes two refraction elements arranged opposite each other along a propagation axis and coupled on opposite ends to first and second polarization orientation elements with first and second PBS elements are coupled to the first and second polarization orientation elements, respectively. The refraction elements include complementary Wollaston Prism elements or Rochon Prism elements. Each polarization orientation element includes a Faraday rotator element, and in some embodiments, a half-wave plate formed using thin film coating techniques. The Faraday rotator elements are periodically poled in some embodiments using selective poling techniques to create oppositely oriented magnetic domains so that polarization rotations of 45 degrees in both clockwise and counter-clockwise directions can be simultaneously achieved on the same magnetic garnet. Periodically etched half-wave plates are used in some embodiments.

Abstract translation: 微型光学器件，包括循环器阵列器件，使用薄膜涂覆技术制造。 典型的光学器件包括沿着传播轴线彼此相对布置的两个折射元件，并且在相对端上耦合到第一和第二偏振取向元件，其中第一和第二PBS元件分别耦合到第一和第二偏振取向元件。 折射元件包括互补的Wollaston棱镜元件或Rochon棱镜元件。 每个偏振取向元件包括法拉第转子元件，并且在一些实施例中，使用薄膜涂覆技术形成半波片。 在一些实施例中，法拉第转子元件周期性地被极化，使用选择性极化技术来产生相反方向的磁畴，使得可以在相同的磁性石榴石上同时实现顺时针和逆时针方向上的45度的偏振旋转。 在一些实施例中使用周期蚀刻的半波片。

公开(公告)号：US07130121B2

公开(公告)日：2006-10-31

申请号：US11276997

申请日：2006-03-20

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

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

IPC: G02B27/28

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.

公开(公告)号：US20060158718A1

公开(公告)日：2006-07-20

申请号：US11276997

申请日：2006-03-20

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

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

IPC: 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：US07044660B2

公开(公告)日：2006-05-16

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: G02B6/36 ,  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。