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1. 发明授权

US5627925A Non-blocking optical cross-connect structure for telecommunications network 失效
标题翻译：用于电信网络的非阻塞光交叉连接结构
公开(公告)号：US5627925A
公开(公告)日：1997-05-06
申请号：US418335
申请日：1995-04-07
申请人： Rodney C. Alferness , Adel A. M. Saleh
发明人： Rodney C. Alferness , Adel A. M. Saleh
IPC分类号： G02F1/313 , H04B10/02 , H04Q3/52 , H04Q11/00 , G02B6/28
CPC分类号： H04Q11/0005 , H04Q2011/0009 , H04Q2011/0011 , H04Q2011/0015 , H04Q2011/0052
摘要： Wavelength division multiplexing, spatial switching cross-connect structures which may be deployed as intermediate nodes of an all optical network to route any input channel on any source fiber to any destination fiber at any available wavelength to achieve full connectivity between the nodes of the network. The non-blocking cross-connect structure comprises a wavelength division demultiplexer for receiving multiple wavelength channels from each source fiber and for separating received channels into N wavelengths so that the wavelengths are organized according to a corresponding fiber of origin, a nonblocking optical structure for spatially and independently rearranging the received wavelengths so that wavelengths having a common destination fiber are grouped together, and a wavelength division multiplexer for multiplexing together wavelengths having the same destination fiber.
摘要翻译：波分复用，空间交换交叉连接结构，其可以部署为全光网络的中间节点，以将任何源光纤上的任何输入信道路由到任何可用波长的任何目的地光纤，以实现网络节点之间的完全连接。非阻塞交叉连接结构包括用于从每个源光纤接收多个波长信道并用于将接收信道分离为N个波长的波分解复用器，使得根据相应的原始光纤来组织波长，用于空间上的非阻塞光学结构并且独立地重新布置所接收的波长，使得具有公共目的地光纤的波长被分组在一起;以及波分多路复用器，用于将具有相同目的地光纤的波长复用在一起。

2. 发明授权

US4955028A Wavelength tunable composite cavity laser 失效
标题翻译：波长可调谐复合腔激光器
公开(公告)号：US4955028A
公开(公告)日：1990-09-04
申请号：US173488
申请日：1988-03-25
申请人： Rodney C. Alferness , Gadi Eisenstein , Uziel Koren , Ping K. Tien , Rodney S. Tucker , Matthew S. Whalen
发明人： Rodney C. Alferness , Gadi Eisenstein , Uziel Koren , Ping K. Tien , Rodney S. Tucker , Matthew S. Whalen
IPC分类号： G02B6/34 , H01S3/08 , H01S3/1055 , H01S5/14
CPC分类号： G02B6/022 , G02B6/02061 , G02B6/02066 , G02B6/02195 , H01S3/08009 , H01S3/1055 , H01S5/141 , H01S5/146
摘要： Wavelength tunability and single frequency output are achieved in a coherent light source employing an adjustably controllable reflector. The light source includes a gain medium coupled to a single-mode fiber having a partially reduced cladding region at a predetermined distance from the gain medium. A Bragg reflector is either formed on the reduced cladding region of the single-mode fiber or formed on an external element in close proximity to the reduced cladding region. A single resonant optical cavity is formed by placing another reflector on the side of the gain medium opposite the gain medium-to-fiber coupling. Wavelength tuning of the light source is accomplished by controllably adjusting the period or the Bragg reflector element.
摘要翻译：波长可调性和单频输出在采用可调节可控反射器的相干光源中实现。光源包括耦合到单模光纤的增益介质，其具有距离增益介质预定距离的部分减小的包层区域。布拉格反射器或者形成在单模光纤的还原包层区域上，或者形成在紧邻还原包层区域的外部元件上。通过在增益介质的相对于增益介质到光纤耦合的一侧放置另一个反射器来形成单个谐振光学腔。通过可控地调节周期或布拉格反射器元件来实现光源的波长调谐。

3. 发明授权

US4826282A Optical communications laser including a resonator filter 失效
标题翻译：包括谐振滤波器的光通信激光器
公开(公告)号：US4826282A
公开(公告)日：1989-05-02
申请号：US76237
申请日：1987-07-21
申请人： Rodney C. Alferness
发明人： Rodney C. Alferness
IPC分类号： G02B6/122 , G02B6/12 , G02B6/124 , G02F1/225 , H01S5/0625 , H01S5/10 , H01S5/12 , G02B6/10
CPC分类号： H01S5/1028 , G02B6/124 , G02F1/225 , H01S5/1032 , G02B2006/12107 , G02B2006/12109 , H01S5/06256 , H01S5/06258 , H01S5/12 , H01S5/1228 , Y10S359/90
摘要： A structure of first and second grating sections separated by a phase-shift section serves as a narrow-band resonator filter. Such structure may be optically coupled to a semiconductor laser cavity, and the resulting assembly can serve as a tunable narrow-linewidth laser, e.g., in wavelength-multiplexed and coherent-lightwave communications systems.
摘要翻译：由相移部分分开的第一和第二光栅部分的结构用作窄带谐振滤波器。这种结构可以光学地耦合到半导体激光器腔，并且所得到的组件可以用作可调谐窄线宽激光器，例如在波长多路复用和相干光波通信系统中。

4. 发明授权

US4751555A Semiconductor heterointerface optical waveguide 失效
标题翻译：半导体异质界面光波导
公开(公告)号：US4751555A
公开(公告)日：1988-06-14
申请号：US48286
申请日：1987-05-11
申请人： Rodney C. Alferness , Andrew G. Dentai , Charles H. Joyner, Jr.
发明人： Rodney C. Alferness , Andrew G. Dentai , Charles H. Joyner, Jr.
IPC分类号： G02B6/12 , C30B25/02 , C30B29/40 , G02B6/122 , G02F1/025 , H01S5/042 , H01S5/32 , H01S5/323 , H01L29/161
CPC分类号： H01S5/0422 , G02F1/025 , H01S5/32325 , G02F2202/102 , H01S5/3201
摘要： Low loss semiconductor waveguides for supporting propagation of optical signals over a wide range of wavelengths are achieved by growing at least two epitaxial layers of dopant material contiguous along a major surface of each layer to form a heterointerface therebetween. At least one of the epitaxial layers includes a sufficient concentration of semiconductor material to cause strain via lattice mismatch substantially at and near the heterointerface. The strain induces a change in refractive index such that the heterointerface exhibits a substantially higher refractive index than a portion of each epitaxial layer proximate to the heterointerface. The resulting waveguide is capable of supporting propagation of optical signals substantially along the heterointerface. In one example, contiguous epitaxial layers of InP and InGaP form a waveguide for optical signals at wavelengths greater than 0.93 .mu.m. The concentration of Ga in the InGaP epitaxial layer is varied from 10.sup.18 to 10.sup.20 cm.sup.-3 to increase the refractive index difference between the heterointerface and the immediate surrounding layers.

5. 发明授权

US4384760A Polarization transformer 失效
标题翻译：极化变压器
公开(公告)号：US4384760A
公开(公告)日：1983-05-24
申请号：US216309
申请日：1980-12-15
申请人： Rodney C. Alferness
发明人： Rodney C. Alferness
IPC分类号： G02B6/10 , G02B27/28 , G02F1/01 , G02F1/035 , G02F1/05 , H04B10/135 , G02B5/176
CPC分类号： H04B10/25 , G02B6/105 , G02F1/0136 , G02F1/0353 , G02F2001/0142 , G02F2203/07
摘要： A generalized polarization transformer (10) is disclosed that is capable, under electrical control, of transforming the polarization of a signal between two arbitrary states. In its most general form, the transformer comprises a variable input phase shifter (11) for varying the relative phase between an incident pair of orthogonally polarized wave components; a variable mode converter (12) for varying the relative amplitudes of said orthogonally polarized wave components; and a variable output phase shifter (13) for varying the relative phase between the wave components derived from said mode converters. For some applications, the output phase shifter is not required. In an alternative configuration, the input phase shifter and the mode converter are combined in a common constructure.
摘要翻译：公开了一种能够在电气控制下将两个任意状态之间的信号的偏振变换的广义偏振变压器（10）。在其最一般的形式中，变压器包括用于改变入射对的正交偏振波分量之间的相对相位的可变输入移相器（11）用于改变所述正交极化波分量的相对振幅的可变模式转换器（12）; 以及用于改变从所述模式转换器导出的波分量之间的相对相位的可变输出移相器（13）。对于某些应用，不需要输出移相器。在替代配置中，输入移相器和模式转换器组合在共同的结构中。

6. 发明授权

US4273411A Optical wavelength filter 失效
标题翻译：光波长滤波器
公开(公告)号：US4273411A
公开(公告)日：1981-06-16
申请号：US114832
申请日：1980-01-24
申请人： Rodney C. Alferness
发明人： Rodney C. Alferness
IPC分类号： G02F1/035 , G02F1/313 , G02B5/14
CPC分类号： G02F1/3132 , G02F1/0353 , G02F2201/066 , G02F2201/124 , G02F2203/055
摘要： An optical TE.revreaction.TM mode converter, using highly birefringent materials such as lithium niobate, is wavelength sensitive and, as such, can be used as a wavelength filter. However, to extract the filtered (i.e., the mode converted) signal, a separate, high quality polarization selective element is required. This application discloses means for eliminating the need for a separate polarization sensing element by using mode conversion as a means for spatially separating the filtered signal. The filter comprises a pair of mismatched waveguides (11, 12), and phase matching means (14, 15) for producing selective coupling between TE mode wave energy in one of the guides and TM mode wave energy on the other guide.
摘要翻译：使用诸如铌酸锂的高度双折射材料的光学TE - > TM模式转换器是波长敏感的，因此可以用作波长滤波器。然而，为了提取滤波的（即，模式转换的）信号，需要单独的高质量偏振选择元件。本申请公开了通过使用模式转换作为用于空间分离滤波信号的手段来消除对单独偏振感测元件的需要的装置。滤波器包括一对失配的波导（11,12）和相位匹配装置（14,15），用于产生导向件之一中的TE模式波能量与另一个引导件上的TM模式波能量之间的选择性耦合。

7. 发明授权

US4146297A Tunable optical waveguide directional coupler filter 失效
标题翻译：可调光波导定向耦合滤波器
公开(公告)号：US4146297A
公开(公告)日：1979-03-27
申请号：US869515
申请日：1978-01-16
申请人： Rodney C. Alferness , Ronald V. Schmidt
发明人： Rodney C. Alferness , Ronald V. Schmidt
IPC分类号： G02B6/12 , G02F1/035 , G02F1/05 , G02F1/23 , G02F1/25 , G02F1/313 , G02B5/14
CPC分类号： G02F1/3132 , G02F2203/055
摘要： An integrated optical filter composed of coupled nonidentical strip waveguides in LiNbO.sub.3 is disclosed. The device has a broad bandwidth, is tunable over several hundred angstroms, and offers electrical control of the crossover efficiency. Several devices are combined on a single substrate to provide an electrically tunable multiplexer or demultiplexer.
摘要翻译：公开了一种由LiNbO3中的耦合不相干条形波导构成的集成滤光器。该器件具有宽带宽，可调超过几百埃，并提供交叉效率的电气控制。将多个器件组合在单个衬底上以提供电可调谐多路复用器或解复用器。

8. 发明授权

US5243669A Asymmetric, periodically loaded waveguide for polarization rotation 失效
标题翻译：用于偏振旋转的不对称，周期性加载的波导
公开(公告)号：US5243669A
公开(公告)日：1993-09-07
申请号：US864739
申请日：1992-04-07
申请人： Rodney C. Alferness , Thomas L. Koch , Yosi Shani
发明人： Rodney C. Alferness , Thomas L. Koch , Yosi Shani
IPC分类号： G02B6/12 , G02B6/126 , G02F1/01 , G02F1/025 , G02F1/035
CPC分类号： G02F1/025 , G02B6/126 , G02F1/0353 , G02B2006/1204 , G02F2001/0142
摘要： Polarization rotation is achieved in an exemplary embodiment in an optical waveguide by augmenting the waveguide structure with a plurality of spaced-apart sections for loading the refractive index of the waveguide to cause a lateral asymmetry in the refractive index profile of the waveguide viewed in the plane transverse to the waveguide longitudinal axis. Each spaced-apart section induces non-zero coupling between the principal orthogonal polarization modes. Phase matched coupling between the principal orthogonal polarization modes is achieved by spacing the sections periodically by a distance .LAMBDA. equal to .lambda./.DELTA.N where .lambda. is the propagation wavelength in the waveguide and .DELTA.N is the difference between the effective refractive indices for the principal orthogonal polarization modes. Realizations of the waveguide structure are shown using Group III-V semiconductor rib waveguide structures.
摘要翻译：在光波导中的示例性实施例中通过用多个间隔开的部分来增加波导结构来实现极化旋转，以便加载波导的折射率以引起在平面中观察到的波导的折射率分布的横向不对称性横向波导纵向轴线。每个间隔开的部分在主正交偏振模式之间引起非零耦合。主要正交偏振模式之间的相位匹配耦合是通过间隔这些部分周期性地等于λ/ DELTA N的距离LAMBDA来实现的，其中λ是波导中的传播波长，并且DELTA N是主正交的有效折射率之间的差极化模式。使用III-V族半导体肋波导结构示出了波导结构的实现。

9. 发明授权

US4991975A Division multiplexing and demultiplexing means lightwave communication system comprising optical time 失效
标题翻译：分路复用和解复用是指包括光时间的光波通信系统
公开(公告)号：US4991975A
公开(公告)日：1991-02-12
申请号：US275454
申请日：1988-11-22
申请人： Rodney C. Alferness , Gadi Eisenstein , Steven K. Korotky , Rodney S. Tucker
发明人： Rodney C. Alferness , Gadi Eisenstein , Steven K. Korotky , Rodney S. Tucker
IPC分类号： H04J14/08 , H04L7/033
CPC分类号： H04J14/08 , H04L7/0337
摘要： Disclosed is a time division multiplexed optical communication system that is capable of operation at relatively high bit rates and that is relatively stable and immune to crosstalk and noise. The system comprises receiver means wherein the timing signal for demultiplexing is derived from the fully multiplexed optical pulse stream by means that comprise a narrow band receiver and timing means that produce a lower-frequency timing signal from the output of the narrow band receiver. The timing signal is used to drive one or more optical switches. In one embodiment of the invention the receiver means have a binary-tree architecture and the timing signals are substantially sinusoidal. In another embodiment the receiver means have a linear-bus architecture and the timing signals are pulse-like.
摘要翻译：公开了一种时分复用光通信系统，其能够以相对高的比特率操作并且相对稳定并且不受串扰和噪声的影响。该系统包括接收机装置，其中用于解复用的定时信号通过包括窄带接收机和从窄带接收机的输出产生较低频定时信号的定时装置从全复用光脉冲流导出。定时信号用于驱动一个或多个光开关。在本发明的一个实施例中，接收机装置具有二进制树结构，并且定时信号基本上是正弦的。在另一个实施例中，接收器装置具有线性总线架构，并且定时信号是类似脉冲的。

10. 发明授权

US4667331A Composite cavity laser utilizing an intra-cavity electrooptic waveguide device 失效
公开(公告)号：US4667331A
公开(公告)日：1987-05-19
申请号：US572634
申请日：1984-01-20
申请人： Rodney C. Alferness , Gadi Eisenstein , Steven K. Korotky
发明人： Rodney C. Alferness , Gadi Eisenstein , Steven K. Korotky
IPC分类号： H01S3/106 , H01S3/098 , H01S3/107 , H01S3/11 , H01S3/115 , H01S5/14 , H01L3/10
CPC分类号： H01S3/1109 , H01S3/083 , H01S3/107 , H01S5/146 , H01S3/1127
摘要： Optical functions such as Q-switching, mode locking, cavity dumping, and modulation are generated by a simple laser arrangement which includes a gain medium and an electrically controllable, optical waveguide device optically coupled to the gain medium. The gain medium and waveguide device are either interposed between two reflective surfaces or coupled by a waveguide in order to form a single composite cavity laser structure. -

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