公开(公告)号：US06275511B1

公开(公告)日：2001-08-14

申请号：US09114309

申请日：1998-07-13

Applicant: Jing-Jong Pan ,  Yuan Shi

Inventor： Jing-Jong Pan ,  Yuan Shi

IPC: H01S330

CPC classification number: G02B6/2932 ,  G02B6/2938 ,  G02B6/4204 ,  G02B6/4208 ,  H01S5/0078 ,  H01S5/02216 ,  H01S5/02248 ,  H01S5/02284 ,  H01S5/1092 ,  H01S5/1215 ,  H01S5/1218 ,  H01S5/146

Abstract: Overlapping multiple fiber Bragg gratings for reflecting light in a plurality of wavelength each with a selected narrow linewidth are described. Each fiber Bragg grating has a selected period so as to reflect light in a wavelength with a selected narrow linewidth. The overlapping multiple fiber Bragg gratings can be used in various applications, including a multiwavelength laser source. One embodiment of a multiwavelength laser source includes a laser diode having first and second facets from which output light is emitted and an optical fiber section having an end located near the second facet to receive output light from the laser diode. The optical fiber section includes overlapping multiple fiber Bragg gratings for reflecting output light in the wavelengths with selected narrow linewidths back into the laser diode through its second facet. The output light emitted from the first facet has very narrow linewidths about the selected linewidths.

Abstract translation: 描述了重叠多个光纤布拉格光栅，用于反射多个波长的光，每个具有选定的窄线宽。 每个光纤布拉格光栅具有选定的周期，以反射具有选定的窄线宽的波长的光。 重叠的多光纤布拉格光栅可用于各种应用，包括多波长激光源。 多波长激光源的一个实施例包括具有从其输出光的第一和第二小面的激光二极管和具有靠近第二面的端部的光纤部分，以接收来自激光二极管的输出光。 光纤部分包括重叠的多个光纤布拉格光栅，用于将具有选定窄线宽度的波长的输出光反射回通过其第二面的激光二极管。 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：US6148129A

公开(公告)日：2000-11-14

申请号：US960948

申请日：1997-10-30

Applicant: Jing-Jong Pan ,  Donna Yu

Inventor： Jing-Jong Pan ,  Donna Yu

IPC: G02B6/28 ,  G02B6/26

CPC classification number: G02B6/2835

Abstract: The present invention provides for a fiber optic coupler of first and second optic fibers formed by a length of the two fibers. The first optic fiber along the length has a different core diameter than that of the second optic fiber. At the both ends of the length the first and second optic fibers are twisted about each other with a central portion in which said first and second optic fibers are fused substantially parallel to each other. The resulting coupler is such that an input light signal is split into output light signals in a predetermined power ratio on the two optic fibers with the coupled power ratio relatively insensitive for a predetermined range of signal wavelengths.

Abstract translation: 本发明提供了由两根纤维的长度形成的第一和第二光纤的光纤耦合器。 沿着长度的第一光纤具有与第二光纤不同的芯直径。 在长度的两端，第一和第二光纤被彼此扭转，中心部分使第一和第二光纤基本上彼此平行地熔合。 所得到的耦合器使得输入光信号以对于预定范围的信号波长相对不敏感的两个光纤以预定功率比分割成输出光信号。

公开(公告)号：US06058131A

公开(公告)日：2000-05-02

申请号：US971311

申请日：1997-11-17

Applicant: Jing-Jong Pan

Inventor： Jing-Jong Pan

IPC: H01S5/0687 ,  H01S3/08

CPC classification number: H01S5/0687

Abstract: A laser source with an extremely stable output is provided. A laser diode has an output intensity centered at a peak wavelength which is responsive to a control signal. First and second fiber Bragg gratings are coupled to the laser diode. The first fiber Bragg grating having a reflectivity centered about a first wavelength and the second fiber Bragg grating having a reflectivity centered about a second wavelength different from the first wavelength. Each of the first and second fiber Bragg gratings generates a feedback signal responsive to the reflectivity of the fiber Bragg grating and the output intensity of the laser diode. A controller connected to the laser diode generates the control signal responsive to the feedback signals from the first and second fiber Bragg gratings so that the peak wavelength of the laser diode is maintained at a fixed wavelength between the first and second wavelengths.

Abstract translation: 提供了具有极其稳定的输出的激光源。 激光二极管具有以响应于控制信号的峰值波长为中心的输出强度。 第一和第二光纤布拉格光栅耦合到激光二极管。 具有以第一波长为中心的反射率的第一光纤布拉格光栅和具有以不同于第一波长的第二波长为中心的反射率的第二光纤布拉格光栅。 第一和第二光纤布拉格光栅中的每一个响应于光纤布拉格光栅的反射率和激光二极管的输出强度产生反馈信号。 连接到激光二极管的控制器响应于来自第一和第二光纤布拉格光栅的反馈信号产生控制信号，使得激光二极管的峰值波长保持在第一和第二波长之间的固定波长。

公开(公告)号：US6049645A

公开(公告)日：2000-04-11

申请号：US986760

申请日：1997-12-08

Applicant: Jing-Jong Pan ,  Ming Shih ,  Weiti Wu ,  Yu-Li Ko ,  Donna S. Yu

Inventor： Jing-Jong Pan ,  Ming Shih ,  Weiti Wu ,  Yu-Li Ko ,  Donna S. Yu

IPC: G02B6/287 ,  G02B6/28 ,  G02B6/26

CPC classification number: G02B6/2856 ,  G02B2006/2865 ,  G02B6/3636

Abstract: The present invention provides fiber optic couplers for use with at least three optic fibers. The optic fibers arranged in a linear array, that is, the optic fibers are coupled side by side. The fibers along either end of the linear-array are coupled only to a single fiber, while the remaining fibers are generally coupled between only two adjacent fibers. Generally, at least one of the fibers has a propagation constant different that the other fibers. Such variations in the propagation constant are used to vary the coupling coefficients among the fibers of the linear-array, thereby providing a repeatable mechanism, to vary coupled power ratios among the fibers of the coupler. Theoretical calculations and empirical experience have shown that varying the propagation constant of fibers among a linear-array, generally by pre-pulling the fibers by varying amounts, allows repeatable manufacturing of 1.times.3, 1.times.4, 4.thrfore.3, 1.times.N and even N.times.N fiber couplers having even coupled power ratios.

Abstract translation: 本发明提供了用于至少三个光纤的光纤耦合器。 布置成线性阵列的光纤，即光纤并排耦合。 沿着线性阵列的任一端的纤维仅耦合到单个纤维，而剩余的纤维通常仅在两个相邻纤维之间耦合。 通常，纤维中的至少一种具有与其它纤维不同的传播常数。 传播常数的这种变化用于改变线阵列的光纤之间的耦合系数，从而提供可重复的机构，以改变耦合器的光纤之间的耦合功率比。 理论计算和实践经验表明，通常通过以不同的量预拉伸纤维来改变线性阵列之间的纤维的传播常数允许1x3,1x4,4的可重复制造，因此具有3,1×N和甚至N×N个光纤耦合器的光纤耦合器具有 偶耦合功率比。

公开(公告)号：US06023542A

公开(公告)日：2000-02-08

申请号：US946773

申请日：1997-10-08

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, ca 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：US6014485A

公开(公告)日：2000-01-11

申请号：US114436

申请日：1998-07-13

Applicant: Jing-Jong Pan

Inventor： Jing-Jong Pan

IPC: G02B6/00 ,  G02B6/293 ,  G02B6/34 ,  G02B6/32

CPC classification number: G02B6/2937 ,  G02B6/0218 ,  G02B6/29389 ,  G02B6/0208 ,  G02B6/29317

Abstract: Optical filters, filter systems, and methods for filtering optical signals transmitted along optical fibers provide enhanced filter performance by combining the capabilities of different types of filters particularly for dense wavelength division multiplexed systems. More specifically, the spectral skirt or transition wavelength range between a pass band wavelength range and a blocked wavelength range of a thin film pass band or dichroic filter is enhanced by arranging the thin film filter in series with one or more Fiber Bragg Gratings. The Fiber Bragg Gratings will generally reflect a portion of the signal within the spectral skirt or transition wavelength range of the thin film filter. Although short Fiber Bragg Gratings generally block a quite narrow range of signals, the steep spectral skirt of the grating, when combined with the broader wavelength response of a thin film bandpass or dichroic filter, results in a composite filter structure which exhibits the beneficial characteristics of each of its components.

Abstract translation: 光滤波器，滤波器系统和用于滤波沿光纤传输的光信号的方法通过组合不同类型的滤波器的能力，特别是用于密集波分复用系统来提供增强的滤波器性能。 更具体地，通过将​​薄膜滤光器与一个或多个光纤布拉格光栅串联布置来增强薄膜通带或二向色滤光片的通带波长范围和阻挡波长范围之间的光谱裙边或过渡波长范围。 光纤布拉格光栅通常将反射薄膜滤光片的光谱裙边或过渡波长范围内的一部分信号。 虽然短纤维布拉格光栅通常阻挡相当窄的信号范围，但是当与薄膜带通或二向色滤光器的较宽波长响应结合时，光栅的陡峭频谱边缘导致复合滤波器结构，其表现出有利的特性 每个组件。

公开(公告)号：US5999669A

公开(公告)日：1999-12-07

申请号：US174719

申请日：1998-10-19

Applicant: Jing-Jong Pan ,  Yonglin Huang

Inventor： Jing-Jong Pan ,  Yonglin Huang

IPC: G02B6/35 ,  G02B6/26

CPC classification number: G02B6/352 ,  G02B6/3546 ,  G02B6/3548 ,  G02B6/3572 ,  G02B6/3588

Abstract: Optic switches manipulate an optical signal that has been expanded by a collimating lens. Switching is effected by introducing a prism between collimating lenses to redirect the optical signal to an alternative lens. The prism preferably has a cross-section defining a parallelogram, so that the optical signal is reflected twice within the prism to minimize cross-sectional distortion and avoid spectral effects. A circuit provides feedback on the actual position of the relay and prism for fault detection and diagnosis.

公开(公告)号：US5748350A

公开(公告)日：1998-05-05

申请号：US667998

申请日：1996-06-19

Applicant: Jing-Jong Pan ,  Simon X. F. Cao ,  Yuan Shi ,  Donna S. Yu

Inventor： Jing-Jong Pan ,  Simon X. F. Cao ,  Yuan Shi ,  Donna S. Yu

IPC: G02B6/34 ,  H04J14/02

CPC classification number: G02B6/2932 ,  G02B6/2938 ,  H04J14/02 ,  H04J14/0208 ,  H04J14/0209 ,  H04J14/0213 ,  H04J14/0216 ,  H04J14/0224

Abstract: Multiplexer and demultiplexer devices for Dense WDM networks are described. The devices use an optical circulator, a plurality of bandpass wavelength division units and fiber Bragg gratings arranged in the optical fibers interconnecting the optical circulator and the bandpass wavelength division units. The optical circulator is connected to a network optical fiber and the bandpass wavelength division units are connected to a plurality of input/output optical fibers. Each fiber Bragg grating has a narrow wavelength reflection band about a predetermined wavelength and is arranged so that optical signals at wavelengths differing from predetermined wavelengths of the first optical fibers connected to a bandpass wavelength division unit are blocked and reflected. Depending upon the direction of the optical circulator, the device may be a multiplexer or a demultiplexer. Alternatively, a 3dB optical coupler may be used in place of the optical circulator with a corresponding rearrangement of the fiber Bragg gratings.

Abstract translation: 描述了用于密集WDM网络的多路复用器和解复用器设备。 器件使用光环行器，多个带通波长分割单元和布置在光纤中的互连光环行器和带通波长分割单元的光纤布拉格光栅。 光循环器连接到网络光纤，并且带通波长分割单元连接到多个输入/输出光纤。 每个光纤布拉格光栅具有围绕预定波长的窄波长反射带，并被布置成使得与连接到带通波长分割单元的第一光纤的预定波长不同的波长的光信号被阻挡和反射。 根据光循环器的方向，该装置可以是多路复用器或解复用器。 或者，可以使用3dB光耦合器代替光循环器，其中纤维布拉格光栅的相应重排。

公开(公告)号：US5726801A

公开(公告)日：1998-03-10

申请号：US361604

申请日：1994-12-21

Applicant: Jing-Jong Pan

Inventor： Jing-Jong Pan

IPC: G02B6/26 ,  G02B6/42 ,  G02B5/30 ,  G02B27/28

CPC classification number: G02B6/4209 ,  G02B6/2746 ,  G02B6/4208 ,  Y10S372/703

Abstract: The present invention provides for a reduced isolator assembly having only two elements for a linearly polarized light source. The first element may be a birefringent crystal or a linear polarizer, such as a linear polarizer sheet, a laminated thin-film polarizer, or a polarizing beam splitter. The second element is a quarter-wave plate. The isolator blocks the light reflected back toward the polarized light source.

Abstract translation: 本发明提供一种仅具有用于线性偏振光源的两个元件的简化隔离器组件。 第一元件可以是双折射晶体或线性偏振器，例如线性偏振片，层叠薄膜偏振器或偏振分束器。 第二个元素是四分之一波片。 隔离器阻挡反射回偏振光源的光。

公开(公告)号：US5652814A

公开(公告)日：1997-07-29

申请号：US623441

申请日：1996-03-28

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。