公开(公告)号：US5796889A

公开(公告)日：1998-08-18

申请号：US614864

申请日：1996-03-13

Applicant: Jingyu Xu ,  Jing-Jong Pan

Inventor： Jingyu Xu ,  Jing-Jong Pan

IPC: G02B6/34 ,  G02B6/38 ,  G02B6/28

CPC classification number: G02B6/2938 ,  G02B6/2937 ,  G02B6/3833 ,  Y10S372/703

Abstract: A compact, high-performance WDM coupler which couples at least three optical fibers is presented. The coupler has the ends of first, second and third optical fibers near a first face of a collimating lens. A wavelength-dependent filter, such as a long-pass filter, a short-pass filter or a band-pass filter, is located near the opposite face of the collimating lens. The wavelength-dependent filter and the ends of the first and second optical fibers are arranged with respect to each other so that light from the first optical fiber and reflected by the wavelength-dependent filter passes into the second optical fiber. Light which passes through the wavelength-dependent filter remains collimated by the collimated lens. Reflecting elements or a second collimating lens in focus with the end(s) of one or more optical fibers can placed next to the wavelength-dependent filter and on the other side of the collimating lens to create variations of the WDM coupler for many applications.

Abstract translation: 提出了耦合至少三根光纤的紧凑型高性能WDM耦合器。 耦合器在准直透镜的第一面附近具有第一，第二和第三光纤的端部。 诸如长通滤波器，短通滤波器或带通滤波器的波长依赖滤波器位于准直透镜的相对面附近。 波长相关滤光器和第一和第二光纤的端部相对于彼此布置，使得来自第一光纤并由波长相关滤光器反射的光通过第二光纤。 通过波长相关滤光片的光线保持准直透镜准直。 与一个或多个光纤的端部对焦的反射元件或第二准直透镜可以放置在靠近波长的滤光器的旁边并且在准直透镜的另一侧上，以便为许多应用产生WDM耦合器的变化。

公开(公告)号：US5742712A

公开(公告)日：1998-04-21

申请号：US727075

申请日：1996-10-08

Applicant: Jing-Jong Pan ,  Jing-Yu Xu ,  Charlene Jia-Ling Yang

Inventor： Jing-Jong Pan ,  Jing-Yu Xu ,  Charlene Jia-Ling Yang

IPC: G02B6/32 ,  G02B6/35 ,  G02B6/38 ,  G02B6/26

CPC classification number: G02B6/3514 ,  G02B6/32 ,  G02B6/3833 ,  G02B6/327 ,  G02B6/3556

Abstract: The present invention provides improved optic switches in which the optic fibers and optical pathways need not move. Advantageously, the switches of the present invention generally rely on a combination of a moveable reflective element and at least one fixed collimating lens. The collimating lens typically expands the light signal from a single mode fiber to a substantially larger optic path. When the reflective element is disposed out of this large optic path, the light signals continue on to a first output fiber, often through another collimating lens. However, when the reflective element is disposed within the expanded optic path from the collimating lens, the signal is reflected back through that same collimating lens into an alternative output fiber which is parallel and in close proximity to the input fiber. Conveniently, the reflective element can move across the optic path without changing the position of the input or output fibers relative to each other. Surprisingly, a thin planar reflector which is aligned to reflect one of a pair of signals crossing between two collimating lenses can also reflect the other crossing signal, thereby providing highly efficient multiple signal switching. Hence, by carefully locating a number of optic fibers parallel to each other about the center line of the collimating lens, a wide variety of highly efficient, multiple input and multiple output switching structures can be constructed.

公开(公告)号：US5699377A

公开(公告)日：1997-12-16

申请号：US640417

申请日：1996-04-30

Applicant: Jing-Jong Pan

Inventor： Jing-Jong Pan

IPC: G02B6/42 ,  H01S5/022 ,  H01S5/14 ,  H01S3/08 ,  G02B6/00

CPC classification number: G02B6/0218 ,  G02B6/4208 ,  G02B6/4215 ,  G02B6/424 ,  H01S5/147 ,  G02B6/4265 ,  G02B6/4269 ,  G02B6/4271 ,  G02B6/4286 ,  H01S3/1053 ,  H01S3/1055 ,  H01S5/0064 ,  H01S5/02216 ,  H01S5/02284 ,  H01S5/02415 ,  H01S5/02446

Abstract: A semiconductor laser source having a laser diode and a fiber Bragg grating is described. The laser diode has first and second facets from which output light is emitted. A first end of the fiber Bragg grating is located near the second facet to receive output light from the laser diode. The fiber Bragg grating has a very narrow linewidth about a selected wavelength and reflects output light in the selected narrow linewidth back into the laser diode through its second facet. The output light emitted from the first facet has a very narrow linewidth about the selected linewidth.

Abstract translation: 描述了具有激光二极管和光纤布拉格光栅的半导体激光源。 激光二极管具有从其输出光的第一和第二小平面。 光纤布拉格光栅的第一端位于第二面附近以接收来自激光二极管的输出光。 光纤布拉格光栅具有围绕所选波长的非常窄的线宽，并将所选窄线宽中的输出光通过其第二面反射回激光二极管。 从第一小面发射的输出光线对于所选择的线宽具有非常窄的线宽。

公开(公告)号：USRE35575E

公开(公告)日：1997-07-29

申请号：US355138

申请日：1994-12-13

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 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：US5611009A

公开(公告)日：1997-03-11

申请号：US512752

申请日：1995-08-09

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。

公开(公告)号：US5562839A

公开(公告)日：1996-10-08

申请号：US473694

申请日：1995-06-07

Applicant: Jing-Jong Pan

Inventor： Jing-Jong Pan

IPC: G02B6/245 ,  G02B6/255 ,  G02B6/28 ,  G02B6/32 ,  B44C1/22 ,  C03C15/00

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

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：US5557692A

公开(公告)日：1996-09-17

申请号：US548820

申请日：1995-10-26

Applicant: Jing-Jong Pan ,  Ming Shih

Inventor： Jing-Jong Pan ,  Ming Shih

IPC: G02B5/30 ,  G02B6/26 ,  G02B6/35 ,  G02B27/28 ,  G02F1/01 ,  G02F1/09 ,  G02F1/13 ,  G02F1/1333 ,  G02F1/13363 ,  G02F1/313

CPC classification number: G02B5/3083 ,  G02B27/28 ,  G02B6/2746 ,  G02F1/093 ,  G02F1/1326 ,  G02B6/3552 ,  G02B6/3592 ,  G02B6/3594 ,  G02F1/13363 ,  G02F2203/48 ,  Y10S372/703

Abstract: The present invention provides for a compensating element in the form of a birefringent plate in an optical isolator which uses a first GRIN lens to collimate the light signal from an input optical fiber, a first birefringent polarizer wedge, an optical Faraday rotator, a second birefringent polarizer wedge, and a second GRIN lens to recollimate the light signal to an output optical fiber. Polarization mode dispersion through said optical isolator is substantially reduced by arranging the fast optical axis of the plate to be perpendicular to the fast optical axis of the polarizer on the same side of the Faraday rotator as the plate and selecting the thickness of the plate in a predetermined manner. The present invention also allows for minimization of "walk-off", which also contributes to some polarization mode dispersion through the isolator.

Abstract translation: 本发明提供一种光隔离器中双折射板形式的补偿元件，其使用第一GRIN透镜来校准来自输入光纤的光信号，第一双折射偏振片，光法拉第转子，第二双折射 偏振片和第二GRIN透镜，以将光信号重新聚光到输出光纤。 通过将板的快速光轴布置在与板的法拉第旋转器的同一侧上的偏振器的快速光轴上，并且选择板的厚度，从而大大减少了通过所述光隔离器的偏振模色散 预先确定的方式。 本发明还允许“走走”最小化，这也有助于通过隔离器的一些偏振模式色散。

公开(公告)号：US5546486A

公开(公告)日：1996-08-13

申请号：US205919

申请日：1994-03-03

Applicant: Ming Shih ,  Jingyu Xu ,  Weng-Herng Su ,  Jing-Jong Pan

Inventor： Ming Shih ,  Jingyu Xu ,  Weng-Herng Su ,  Jing-Jong Pan

IPC: G02B6/24 ,  G02B6/26 ,  G02B6/38 ,  G02B6/25

CPC classification number: G02B6/2746 ,  G02B6/241 ,  G02B6/3818

Abstract: An optical fiber having an improved input fiber end for an optical isolator. The end of the fiber has a flat end surface substantially perpendicular to the longitudinal axis of the fiber. An optical barrier layer, formed by a layer of chromium and a layer of gold, covers the end surface of the fiber with an aperture exposing the core and covering the cladding of the fiber. Light transmission into the end is substantially reduced to increase the reflection loss of the optical isolator.

Abstract translation: 一种具有用于光隔离器的改进的输入光纤端的光纤。 纤维的端部具有基本垂直于纤维的纵向轴线的平坦端面。 由铬层和金层形成的光学阻挡层用光罩覆盖纤维的端面，露出芯并覆盖纤维的包层。 光传输到端部被大大减少以增加光隔离器的反射损耗。

公开(公告)号：US5479541A

公开(公告)日：1995-12-26

申请号：US307114

申请日：1994-09-16

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。

公开(公告)号：US5208876A

公开(公告)日：1993-05-04

申请号：US786434

申请日：1991-11-01

Applicant: Jing-Jong Pan

Inventor： Jing-Jong Pan

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

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 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。