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1.发明授权
公开(公告)号：US4803429A
公开(公告)日：1989-02-07
申请号：US907667
申请日：1986-09-15
申请人： Kazuo Kyuma , Sze-Keung Kwong , Amnon Yariv
发明人： Kazuo Kyuma , Sze-Keung Kwong , Amnon Yariv
IPC分类号： G01R33/032 , G02F1/35 , G01R33/02
CPC分类号： G01R33/0322 , G02F1/3538
摘要： The tensorial nature of the nonlinear constant or the electro-optic coefficient of the phase conjugate material makes it impossible to perform true phase conjugation of fields with arbitrary polarization states, i.e., to recover the polarization state of the incident light of arbitrary polarization after the phase conjugation. It is demonstrated here that an optical wave propagating through a polarization and mode scrambling medium can regain its original polarization state after phase conjugation followed by reverse propagation through the polarization and mode scrambling medium. Such polarization recovery is achieved even while a magnetic field is applied to the medium, but with power loss proportional to the magnitude of the magnetic field.
摘要翻译： 相位共轭材料的非线性常数或电光系数的张量性质使得不可能执行具有任意偏振态的场的真相相位，即恢复相位之后的任意偏振的入射光的偏振状态 共轭。 这里证明，通过极化和模式加扰介质传播的光波可以在相位共轭之后重新获得其原始偏振态，随后通过偏振和模式加扰介质的反向传播。 即使在向介质施加磁场但是具有与磁场的大小成比例的功率损耗时，也实现了这种极化恢复。
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2.发明授权Real time optical computing and image processing using self-pumped conjugate mirror 失效使用自泵浦共轭镜的实时光学计算和图像处理
公开(公告)号：US4762394A
公开(公告)日：1988-08-09
申请号：US874565
申请日：1986-06-16
申请人： Sze-Keung Kwong , George A. Rakuljic , Victor Leyva , Amnon Yariv
发明人： Sze-Keung Kwong , George A. Rakuljic , Victor Leyva , Amnon Yariv
CPC分类号： G06E3/001 , G02F1/3538
摘要： Real time "exclusive or" operation, image subtraction, intensity inversion, and first- and second-order differentiation is achieved by an interferometer with a phase conjugate mirror for retroreflection of two or more beams derived from a single beam by a beam splitter and recombined interferometrically by the beam splitter.
摘要翻译： 通过具有相位共轭反射镜的干涉仪实现“独占”或“运算，图像减法，强度反转以及一阶和二阶微分”，用于通过分束器从单个光束导出的两个或更多个光束进行回射，并重新组合 通过分束器进行干涉测量。
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公开(公告)号：US5127072A
公开(公告)日：1992-06-30
申请号：US490483
申请日：1990-03-08
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。
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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
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。
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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
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.
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