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1. 发明授权

US4764934A Superluminescent diode and single mode laser 失效
标题翻译：超发光二极管和单模激光器
公开(公告)号：US4764934A
公开(公告)日：1988-08-16
申请号：US78367
申请日：1987-07-27
申请人： Sze-Keung Kwong , Kam Y. Lau , Nadav Bar-Chaim , Israel Ury
发明人： Sze-Keung Kwong , Kam Y. Lau , Nadav Bar-Chaim , Israel Ury
IPC分类号： H01L33/00 , H01S5/00 , H01S5/042 , H01S5/06 , H01S5/16 , H01S5/227 , H01S3/19
CPC分类号： H01S5/0601 , H01L33/0045 , H01S5/164 , H01S5/0425 , H01S5/0602
摘要： A buried heterostructure window device has an elongated layer of gain medium surrounded by a lower index of refraction medium of guiding light along the length of the gain medium. A window and an antireflective layer are deposited on the output end of the gain layer to minimize reflections. A portion of the gain medium nearer the output end of the device is electrically pumped, leaving an unpumped end of the gain medium remote from the output end. The unpumped portion of the gain medium absorbs light travelling along the length of the gain medium. This inhibits reflection from the end of the gain medium remote from the output end. When the device is pumped with a moderate power level, strong superluminescent output is obtained. When the device is pumped well above the lasing threshold by reason of "burning through" the unpumped absorbing portion of the gain medium, a single mode laser is obtained with side band power at least 20 db below the power of the principal oscillation mode. "Burning through" the unpumped absorbing portion can be inhibited by extracting current carriers from that portion of the medium.

2. 发明授权

US5515469A Fiber optic connector housing 失效
标题翻译：光纤连接器外壳
公开(公告)号：US5515469A
公开(公告)日：1996-05-07
申请号：US282706
申请日：1994-07-29
申请人： Harold A. Zarem , Xian L. Yeh , Henry A. Blauvelt , Israel Ury
发明人： Harold A. Zarem , Xian L. Yeh , Henry A. Blauvelt , Israel Ury
IPC分类号： G02B6/42 , H04B10/12 , H04B10/13 , H04B10/135 , H04B10/14
CPC分类号： G02B6/4202 , G02B6/4204 , H04B10/25753
摘要： A fiber optic RF signal distribution system has a plurality of antenna stations, each station including an RF antenna. A central RF signal distribution hub receives and transmits signals external to the system. A pair of optical fibers connects each antenna station directly to the distribution hub with the connections being in a star configuration. A connectorized laser module permits direct coupling of a distributed feedback semiconductor laser to the end of each optical fiber without an intervening connector. The module accepts an APC connector with the angled end of its optical fiber in an aperture plane in a connector housing. A distributed feedback laser is mounted in the connector housing with a lens for illuminating the aperture plane and hence, the end of the fiber at an acute angle to the axis of the fiber. Furthermore, the illumination is defocused at the aperture plane for loose optical coupling to the fiber and minimized reflection to the DFB laser.
摘要翻译：光纤RF信号分配系统具有多个天线站，每个站包括RF天线。中央RF信号分配集线器接收和发送系统外部的信号。一对光纤将每个天线站直接连接到分配集线器，连接处于星形配置。连接激光模块允许分布式反馈半导体激光器直接耦合到每个光纤的端部，而没有中间连接器。该模块在连接器外壳中的光阑平面中接收一个APC光纤连接器，其光纤的角度端部。分布式反馈激光器安装在连接器壳体中，具有用于照射孔平面的透镜，因此光纤的端部与光纤的轴线成锐角。此外，照明在孔径平面处散焦，以松散地光耦合到光纤并且最小化到DFB激光器的反射。

3. 发明授权

US4833683A Coherent coupling of optical gain elements 失效
标题翻译：光增益元件的相干耦合
公开(公告)号：US4833683A
公开(公告)日：1989-05-23
申请号：US47783
申请日：1987-05-08
申请人： Israel Ury , Amnon Yariv
发明人： Israel Ury , Amnon Yariv
IPC分类号： H01S3/10 , H01S3/23
CPC分类号： H01S3/10076 , H01S3/2383
摘要： Coherent coupling of a plurality of reflection type optical gain elements with a seeding laser is provided by illuminating the optical gain elements with fanned laser light scattered from a photorefractive medium. The reflection type optical gain elements have an anti-reflective end nearer the photorefractive medium and a reflective opposite end. The optical gain elements also illuminate the photorefractive medium. The resultant amplified and coherent light beam has its wavefront cleaned up with a photorefractive oscillator to provide a diffraction limited or nearly diffraction limited beam.
摘要翻译：通过用光折射介质散射的扇形激光照射光学增益元件，提供多个反射型光学增益元件与种子激光器的相干耦合。反射型光学增益元件具有更靠近光折射介质的反射端和反射相对端。光学增益元件还照射光折射介质。所得放大和相干光束的波前用光折变振荡器进行清理，以提供衍射受限或接近衍射的限制光束。

4. 发明授权

US5127072A Laser module with compliant optical fiber coupling 失效
标题翻译：具有柔性光纤耦合的激光模块
公开(公告)号：US5127072A
公开(公告)日：1992-06-30
申请号：US490483
申请日：1990-03-08
申请人： Henry A. Blauvelt , Sze-Keung Kwong , Ching-Jong Lii , Ronald S. Moeller , Israel Ury
发明人： Henry A. Blauvelt , Sze-Keung Kwong , Ching-Jong Lii , Ronald S. Moeller , Israel Ury
IPC分类号： G02B6/42 , H01S5/022
CPC分类号： G02B6/4225 , G02B6/4208 , G02B6/4216 , H01S5/02252 , H01S5/02284
摘要： A small module for converting an electrical signal to a modulated light signal on an optical fiber comprises a housing, a laser mounted on a laser substrate within the housing, a GRIN lens and an optical isolator downstream from the laser, and a precision capillary for holding an optical fiber downstream from the optical isolator. The relative positions of the laser, lens, optical isolator and fiber are adjusted to maximize light output through the fiber. The optical fiber is sealed to the housing at one point and is free to move axially in the capillary for minimizing mechanical stress on the fiber.
摘要翻译：用于将电信号转换为光纤上的调制光信号的小模块包括外壳，安装在外壳内的激光基板上的激光器，GRIN透镜和激光下游的光隔离器，以及用于保持光隔离器下游的光纤。调整激光，透镜，光隔离器和光纤的相对位置，以使通过光纤的光输出最大化。光纤在一个点处被密封到壳体，并且在毛细管中自由地轴向移动以使纤维上的机械应力最小化。

5. 发明授权

US4843611A Superluminescent diode and single mode laser 失效
标题翻译：超发光二极管和单模激光器
公开(公告)号：US4843611A
公开(公告)日：1989-06-27
申请号：US232505
申请日：1988-08-12
申请人： Sze-Keung Kwong , Kam Y. Lau , Nadav Bar-Chaim , Israel Ury
发明人： Sze-Keung Kwong , Kam Y. Lau , Nadav Bar-Chaim , Israel Ury
IPC分类号： H01L33/00 , H01S5/042 , H01S5/06 , H01S5/10 , H01S5/16
CPC分类号： H01L33/0045 , H01S5/0601 , H01S5/10 , H01S5/164 , H01S5/0425 , H01S5/0602
摘要： A buried heterostructure window device has an elongated layer of gain medium surrounded by a lower index of refraction medium for guiding light along the length of the gain medium. A window and an antireflective layer are deposited on the output end of the gain layer to minimize reflections. A portion of the gain medium nearer the output end of the device is electrically pumped, leaving an unpumped end of the gain medium remote from the output end. The unpumped portion of the gain medium absorbs light travelling along the length of the gain medium. This inhibits reflection from the end of the gain medium remote from the output end. When the device is pumped with a moderate power level, strong superluminescent output is obtained. When the device is pumped well above the lasing threshold by reason of "burning through" the unpumped absorbing portion of the gain medium, a single mode laser is obtained with side band power at least 20 db below the power of the principal oscillation mode. "Burning through" the unpumped absorbing portion can be inhibited by extracting current carriers from that portion of the medium.
摘要翻译：掩埋异质结构窗口装置具有由较低折射率介质包围的增益介质的细长层，用于沿着增益介质的长度引导光。窗口和抗反射层沉积在增益层的输出端，以最小化反射。靠近设备的输出端的增益介质的一部分被电泵浦，使增益介质的未抽头端远离输出端。增益介质的未抽出部分吸收沿着增益介质的长度行进的光。这抑制了远离输出端的增益介质末端的反射。当设备在中等功率水平下泵浦时，获得强超发光输出。当器件由于“燃烧”增益介质的未吸收吸收部分而被泵浦在激光阈值之上时，获得单模激光器，其边带功率比主振荡模式的功率低至少20db。通过从介质的该部分提取电流载流子可以抑制“燃烧”未吸收的吸收部分。

6. 发明授权

US5179461A Broadband optical receiver with passiner tuning network 失效
标题翻译：带路由器调谐网络的宽带光接收机
公开(公告)号：US5179461A
公开(公告)日：1993-01-12
申请号：US598547
申请日：1990-10-16
申请人： Henery A. Blauvelt , Israel Ury , David B. Huff , Howard L. Loboda
发明人： Henery A. Blauvelt , Israel Ury , David B. Huff , Howard L. Loboda
IPC分类号： H04B10/158
CPC分类号： H04B10/6973 , H03F1/565
摘要： This optical receiver is capable of receiving broadband R-F modulated signals transmitted over fiber-optic cable. The receiver comprises a photodiode impedance matched to the input of an low noise, low distortion amplifier by an impedance matching transformer. A passive tuning network is placed between the photodiode and the transformer to improve the high frequency performance of the receiver. Distortion of the optical receiver is further reduced by cancelling even power distortion products from out of phase signals generated by the photodiode.
摘要翻译：该光接收机能够接收通过光纤电缆传输的宽带R-F调制信号。接收机包括通过阻抗匹配变压器与低噪声，低失真放大器的输入匹配的光电二极管阻抗。被动调谐网络放置在光电二极管和变压器之间，以提高接收机的高频性能。通过从由光电二极管产生的异相信号中消除均匀的功率失真产物，进一步降低了光接收机的失真。

7. 发明授权

US4802178A High speed fiberoptic laser module 失效
标题翻译：高速光纤激光模组
公开(公告)号：US4802178A
公开(公告)日：1989-01-31
申请号：US849960
申请日：1986-04-10
申请人： Israel Ury
发明人： Israel Ury
IPC分类号： G02B6/42 , H01S5/024 , H01S3/096
CPC分类号： H01S5/02415 , G02B6/4202 , G02B6/4248 , H01S5/02272 , H01S5/02284 , H01S5/02438 , Y10S257/93
摘要： A small module contains means for converting an electrical signal to a correspondingly modulated light signal on an optical fiber. Frequency of the signal can range from D.C up to many gigahertz. A semiconductor laser diode is mounted on a high thermal conductivity substrate on a thermoelectric cooler for controlling laser temperature. The optical fiber output is soldered to the laser substrate with an end in alignment with the laser junction. A laser bias circuit is on a connection substrate adjacent to the laser substrate. A connection substrate also includes a deposited signal lead line connected to the bias circuit by an impedance matching means. Electrical signals from the pin of an external coaxial connector are coupled to the lead line. The laser bias circuit and signal lead line are electrically connected to the laser diode by wires between the connection substrate and the laser substrate. A photodiode in the module in the light path from the laser provides a control signal.
摘要翻译：小模块包含用于将电信号转换为光纤上相应调制的光信号的装置。信号的频率范围可以从直流到几千兆赫。半导体激光二极管安装在用于控制激光温度的热电冷却器上的高导热性基板上。将光纤输出焊接到激光基板上，其端部与激光连接部对准。激光偏置电路位于与激光基板相邻的连接基板上。连接基板还包括通过阻抗匹配装置连接到偏置电路的沉积信号引线。来自外部同轴连接器的引脚的电信号耦合到引线。激光偏置电路和信号引线通过连接基板和激光基板之间的导线与激光二极管电连接。来自激光器的光路中的模块中的光电二极管提供控制信号。

8. 发明授权

US5457557A Low cost optical fiber RF signal distribution system 失效
标题翻译：低成本光纤射频信号分配系统
公开(公告)号：US5457557A
公开(公告)日：1995-10-10
申请号：US184967
申请日：1994-01-21
申请人： Harold A. Zarem , Xian L. Yeh , Henry A. Blauvelt , Israel Ury
发明人： Harold A. Zarem , Xian L. Yeh , Henry A. Blauvelt , Israel Ury
IPC分类号： G02B6/42 , H04B10/12 , H04B10/13 , H04B10/135 , H04B10/14 , H04B10/20 , H04B10/00
CPC分类号： G02B6/4202 , G02B6/4204 , H04B10/25753
摘要： A fiber optic RF signal distribution system has a plurality of antenna stations, each station including an RF antenna. A central RF signal distribution hub receives and transmits signals external to the system. A pair of optical fibers connects each antenna station directly to the distribution hub with the connections being in a star configuration. A connectorized laser module permits direct coupling of a distributed feedback semiconductor laser to the end of each optical fiber without an intervening connector. The module accepts an APC connector with the angled end of its optical fiber in an aperture plane in a connector housing. A distributed feedback laser is mounted in the connector housing with a lens for illuminating the aperture plane and hence, the end of the fiber at an acute angle to the axis of the fiber. Furthermore, the illumination is defocused at the aperture plane for loose optical coupling to the fiber and minimized reflection to the DFB laser.
摘要翻译：光纤RF信号分配系统具有多个天线站，每个站包括RF天线。中央RF信号分配集线器接收和发送系统外部的信号。一对光纤将每个天线站直接连接到分配集线器，连接处于星形配置。连接激光模块允许分布式反馈半导体激光器直接耦合到每个光纤的端部，而没有中间连接器。该模块在连接器外壳中的光阑平面中接收一个APC光纤连接器，其光纤的角度端部。分布式反馈激光器安装在连接器壳体中，具有用于照射孔平面的透镜，因此光纤的端部与光纤的轴线成锐角。此外，照明在孔径平面处散焦，以松散地光耦合到光纤并且最小化到DFB激光器的反射。

9. 发明授权

US5278688A Fault tolerant fiber optic transmission system 失效
标题翻译：容错光纤传输系统
公开(公告)号：US5278688A
公开(公告)日：1994-01-11
申请号：US781072
申请日：1991-10-18
申请人： Henry A. Blauvelt , Israel Ury
发明人： Henry A. Blauvelt , Israel Ury
IPC分类号： H04B10/02 , H04B10/00 , H04J14/02
CPC分类号： H04B10/032 , H04J14/0279 , H04J14/0294
摘要： A fault tolerant fiber optic system has a plurality of lasers modulated by the same signal source. The signals from the lasers are conveyed to an optical coupler by single mode optical fibers. The signals from all of the lasers are mixed in the optical coupler, producing an output signal which is an average of the input signals from the lasers. The optical coupler has a plurality of output single mode fibers which can transmit the averaged signal to a number of optical receivers. By optically combining the signals in phase with each other, the failure of any laser decreases signal strength, but does not disable the system. Surprisingly, the averaging also has the capability of improving the carrier to noise and carrier to distortion ratios for the system, since noise and distortion from the lasers are not correlated and are diminished by a factor of N where N is the number of lasers.
摘要翻译：容错光纤系统具有由相同信号源调制的多个激光器。来自激光器的信号通过单模光纤传送到光耦合器。来自所有激光器的信号在光耦合器中混合，产生作为来自激光器的输入信号的平均值的输出信号。光耦合器具有多个输出单模光纤，其可将平均的信号传输到多个光接收器。通过将相位信号彼此光学组合，任何激光器的故障都会降低信号强度，但不会使系统无效。令人惊讶的是，由于来自激光器的噪声和失真不相关，并且由于N是激光器的数量，因此平均值也具有改善载波与噪声和载波与失真比的能力。

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