公开(公告)号：US06393182B1

公开(公告)日：2002-05-21

申请号：US09712908

申请日：2000-11-16

申请人： Shinji Sakano

发明人： Shinji Sakano

IPC分类号： G02B626

CPC分类号： G02B6/262 ,  G02B6/3818

摘要： An optical transmission system having a transmitter which generates an optical signal and amplifies the optical signal, a receiver which receives a transmitted optical signal, and an optical fiber which receives and transmits amplified optical signal from the transmitter to the receiver. The optical fiber is a single-mode optical fiber and has an end face to be optically coupled through physical contact with another optical fiber. A transparent film made of a material having a melting temperature higher than a melting temperature of a material of the single-mode optical fiber is formed on the end face of the single-mode optical fiber.

摘要翻译： 一种光传输系统，具有产生光信号并放大光信号的发射机，接收发射光信号的接收机和从发射机接收并发射放大光信号的光纤。 光纤是单模光纤，并且具有通过与另一光纤的物理接触来光学耦合的端面。 在单模光纤的端面上形成由熔融温度高于单模光纤的熔融温度的材料制成的透明膜。

公开(公告)号：US06262835B1

公开(公告)日：2001-07-17

申请号：US09572373

申请日：2000-05-18

申请人： Junya Kosaka ,  Shinji Sakano

发明人： Junya Kosaka ,  Shinji Sakano

IPC分类号： H01S300

CPC分类号： H04B10/2912 ,  H01S3/10015 ,  H01S3/1301 ,  H04B10/291 ,  H04B10/2931

摘要： An optical amplifier controlling method and optical amplifier system which are simple in composition, maintain the S/N ratio of an optical signal output, have high control responsiveness, suppress the generation of a light surge, and amplify the optical signal, and a system using the method and amplifier system. The optical amplifier system includes an optical amplifier unit which is supplied with energy by pumping light and amplifies with the supplied energy an optical signal inputted to the amplifier unit. The optical amplifier system includes a gain control unit for controlling the gain of the amplifier system depending on the strength of the optical signal inputted to the amplifier system such that the amplifier has a maximum gain at a predetermined value of the strength of the optical signal inputted in the optical amplifier system and an area of a positive gain of not more than the maximum gain for a strength of the optical signal of not more than the predetermined value.

摘要翻译： 一种组成简单，维持光信号输出的S / N比的光放大器控制方法和光放大器系统具有高控制响应性，抑制光浪涌的产生和放大光信号，以及使用 该方法和放大器系统。 光放大器系统包括光放大器单元，其通过泵浦光而被供能，并以所供能的能量放大输入到放大器单元的光信号。 光放大器系统包括增益控制单元，用于根据输入到放大器系统的光信号的强度来控制放大器系统的增益，使得放大器在输入的光信号的强度的预定值处具有最大增益 在光放大器系统中，对于光信号强度不大于预定值的正增益不大于最大增益的区域。

公开(公告)号：US4983540A

公开(公告)日：1991-01-08

申请号：US273012

申请日：1988-11-18

申请人： Hiroshi Yamaguchi ,  Keiya Saito ,  Fumikazu Itoh ,  Koji Ishida ,  Shinji Sakano ,  Masao Tamura ,  Shoji Shukuri ,  Tohru Ishitani ,  Tsuneo Ichiguchi

发明人： Hiroshi Yamaguchi ,  Keiya Saito ,  Fumikazu Itoh ,  Koji Ishida ,  Shinji Sakano ,  Masao Tamura ,  Shoji Shukuri ,  Tohru Ishitani ,  Tsuneo Ichiguchi

IPC分类号： H01L21/20 ,  G01Q30/16 ,  G01Q60/44 ,  H01J37/08 ,  H01J37/305 ,  H01L21/203 ,  H01L21/205 ,  H01L21/263 ,  H01L21/265 ,  H01L21/302 ,  H01L21/3065 ,  H01L21/31 ,  H01L21/338 ,  H01L21/822 ,  H01L21/8252 ,  H01L29/06 ,  H01L29/15 ,  H01L29/778 ,  H01L29/812

CPC分类号： H01J37/3056 ,  B82Y10/00 ,  H01J37/08 ,  H01L21/2633 ,  H01L21/26546 ,  H01L21/8221 ,  H01L21/8252 ,  H01L29/151 ,  Y10S148/046 ,  Y10S148/051 ,  Y10S148/084 ,  Y10S148/16 ,  Y10S438/962

摘要： An ion beam (113) focused into a diameter of at most 0.1 .mu.m bombards substantially perpendicularly to the superlattice layers of a one-dimensional superlattice structure and is scanned rectilinearly in a direction of the superlattice layers so as to form at least two parallel grooves (108, 109, 110, 111) or at least two parallel impurity-implanted parts (2109) as potential barrier layers, whereby a device of two-dimensional superlattice structure can be manufactured. At least two parallel grooves (114, 115, 116, 117) or impurity-implanted parts are further formed orthogonally to the potential barrier layers of the two-dimensional superlattice structure, whereby a device of three-dimensional superlattice structure can be manufactured. In addition, deposition parts (2403, 2404, 2405) may well be provided by further depositing an insulator into the grooves (108, 109, 110, 111, 114, 115, 116, 117) which are formed by the scanning of the ion beam. Owing to these expedients, the portions of the two-dimensional and three-dimensional superlattice structures can be manufactured with ease and at high precision.

公开(公告)号：US4887877A

公开(公告)日：1989-12-19

申请号：US285367

申请日：1988-12-15

申请人： Hiroaki Inoue ,  Shinji Sakano ,  Hitoshi Nakamura ,  Toshio Katsuyama ,  Hiroyoshi Matsumura

发明人： Hiroaki Inoue ,  Shinji Sakano ,  Hitoshi Nakamura ,  Toshio Katsuyama ,  Hiroyoshi Matsumura

IPC分类号： G02F1/313 ,  G02F3/00

CPC分类号： G02F3/00 ,  G02F1/3138

摘要： An optical device and an optical integrated circuit which incorporate an optical switch and have a novel function. Light sources are respectively coupled to two input ends of an X-type 2.times.2 optical switch, and light receivers are respectively coupled to two output ends of the optical switch, thereby obtaining an optical device which is capable of performing both AND and OR logics. A light source is coupled to one input end of an optical switch, and a light receiver is provided at one output end from which the light emitted from the light source emerges when no electric power is supplied to the optical switch, whereby it is possible to construct a system in which, even when one terminal has a power failure, there is no hindrance to other terminals. If an optical switch is arranged such as to use driving electric power as a modulating signal, the optical switch can serve as a modulator in which the output from one output end can be employed to monitor a modulated optical signal. In addition, if the optical switch is formed into, e.g., a carrier injection type optical switch using a semiconductor, the above-described devices can be fabricated as integrated circuit.

摘要翻译： 一种光学装置和光学集成电路，其包括光学开关并具有新颖的功能。 光源分别耦合到X型2x2光开关的两个输入端，并且光接收器分别耦合到光开关的两个输出端，从而获得能够执行AND和OR逻辑的光学装置。 光源耦合到光开关的一个输入端，并且在一个输出端提供光接收器，当光源没有电力供应到光开关时，从该光源发射的光会从该光源发射出来，因此可以 构建一个系统，其中即使一个终端具有电源故障，也不会妨碍其他终端。 如果光开关被布置为使用驱动电力作为调制信号，则光开关可以用作调制器，其中可以采用来自一个输出端的输出来监视调制的光信号。 此外，如果光开关形成为例如使用半导体的载流子注入型光开关，则可以将上述器件制造为集成电路。