公开(公告)号：US5016963A

公开(公告)日：1991-05-21

申请号：US390795

申请日：1989-08-08

申请人： Jing-Jong Pan

发明人： Jing-Jong Pan

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

CPC分类号： G02B6/2848 ,  G02B6/245 ,  G02B6/2552 ,  G02B6/32

摘要： 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.

摘要翻译： 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

申请人： Jing-Jong Pan

发明人： Jing-Jong Pan

IPC分类号： H01P1/15 ,  H01J40/14

CPC分类号： H01P1/15

摘要： 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.

摘要翻译： 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

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

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

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

CPC分类号： H03F3/601

摘要： 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.

摘要翻译： 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

申请人： Jing-Jong Pan ,  Milton P. Arnold

发明人： Jing-Jong Pan ,  Milton P. Arnold

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

CPC分类号： H03B5/326 ,  H03B21/02

摘要： 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.

摘要翻译： 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：US07130121B2

公开(公告)日：2006-10-31

申请号：US11276997

申请日：2006-03-20

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

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

IPC分类号： G02B27/28

CPC分类号： 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

摘要： 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

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

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

IPC分类号： H01S3/00

CPC分类号： 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

摘要： 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.

摘要翻译： 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

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

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

IPC分类号： G02B6/36 ,  H01S3/00

CPC分类号： 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

摘要： 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.

摘要翻译： 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：US07035501B2

公开(公告)日：2006-04-25

申请号：US10809253

申请日：2004-03-25

申请人： Jing-Jong Pan ,  Hai-Ming Wu

发明人： Jing-Jong Pan ,  Hai-Ming Wu

IPC分类号： G02B6/42

CPC分类号： G02B6/3582 ,  G02B6/3556

摘要： Cholesteric liquid crystal cell units are used for reflecting or transmitting incident light responsive to control signals. A cholesteric liquid crystal cell unit has a first cholesteric liquid crystal cell and a second cholesteric liquid crystal cell. The second cholesteric liquid crystal cell respectively reflects or transmit lights from the first cholesteric liquid crystal cell responsive to a control signal when the first cholesteric liquid crystal cell reflects circularly polarized light of one state or transmits the incident light. In one embodiment of the cell unit, a π-phase waveplate element is located between the first and second cholesteric liquid crystal cells. With the cholesteric liquid crystal cell units, devices such as optical switches, and WDM add/drop multiplexers, and optical switch systems with arrays of input and output optical fibers between a switching matrix formed by the cholesteric liquid crystal cell units, may be constructed.

公开(公告)号：US06289156B1

公开(公告)日：2001-09-11

申请号：US09543624

申请日：2000-04-05

申请人： Jing-Jong Pan ,  Feng Que Zhou

发明人： Jing-Jong Pan ,  Feng Que Zhou

IPC分类号： G02B626

CPC分类号： G02F1/0955 ,  G02F1/093

摘要： Improved optical devices, systems, and methods for selectively directing optical signals generally based on a Mach-Zehnder interferometer. Through accurate control of the phase relationship, the Mach-Zehnder interferometer allows optical signals to either be cumulatively combined so as to enhance the transmitted signal strength, or destructively combined so as to effectively prevent transmission from an optical signal port. This phase relationship can be controlled using a nonreciprocal device having a pair of retarder plates disposed along one of the two legs of the Mach-Zehnder interferometer so as to provide an optical isolator or circulator.

摘要翻译： 改进的光学装置，系统和方法，用于通常基于马赫 - 曾德干涉仪来选择性地引导光信号。 通过对相位关系的精确控制，马赫 - 策德尔干涉仪允许光信号被累积地组合，以增强发射信号强度，或者破坏性地组合，以便有效地防止从光信号端口的传输。 该相位关系可以使用具有沿Mach-Zehnder干涉仪的两条腿之一布置的一对延迟板的不可逆装置来控制，以便提供光隔离器或循环器。

公开(公告)号：US06212305B1

公开(公告)日：2001-04-03

申请号：US09340864

申请日：1999-06-28

申请人： Jing-Jong Pan

发明人： Jing-Jong Pan

IPC分类号： G02B600

CPC分类号： G02B6/2746 ,  G02B6/02042 ,  G02F1/093

摘要： An optical isolator has a sleeve with a longitudinal channel, a pair of optical fibers in the longitudinal channel, a first, second and third birefringent crystals, a GRIN lens, a Faraday rotator and a mirror element. The first birefringent crystal covers the end facet of one of the pair of optical fibers, and the second and third birefringent crystals cover the end facet of the other of the pair of optical fibers. The GRIN lens has first and second end faces with the first end face proximate the first, second and third birefringent crystals. The Faraday rotator is located between the mirror element and the second end face of the GRIN lens. Light in one direction from a first optical fiber of the pair passes through, and back from, the first, second and third birefringent crystals, the GRIN lens, the Faraday rotator and the mirror element into a second optical fiber of the pair. On the other hand, light in a reverse direction from the second optical fiber passes through, and back from, the first, second and third birefringent crystals, the GRIN lens, the Faraday rotator and the mirror element, but not into the first optical fiber so that an optical isolation function is achieved. Multiple optical isolators may be obtained with multiple pairs of optical fibers fixed in the channel of the ferrule.

摘要翻译： 光隔离器具有纵向通道的套筒，纵向通道中的一对光纤，第一，第二和第三双折射晶体，GRIN透镜，法拉第旋转器和反射镜元件。 第一双折射晶体覆盖一对光纤中的一个的端面，第二和第三双折射晶体覆盖该对光纤中另一个的端面。 GRIN透镜具有第一和第二端面，其第一端面靠近第一，第二和第三双折射晶体。 法拉第旋转器位于镜面元件和GRIN透镜的第二端面之间。 来自该对的第一光纤的一个方向的光从第一，第二和第三双折射晶体，GRIN透镜，法拉第旋光器和镜子元件中穿过并返回成对的第二光纤。 另一方面，与第二光纤相反的光从第一，第二和第三双折射晶体，GRIN透镜，法拉第旋光器和反射镜元件通过并返回到第一光纤中 从而实现光隔离功能。 可以获得固定在套圈通道中的多对光纤的多个光隔离器。