公开(公告)号：US20050196092A1

公开(公告)日：2005-09-08

申请号：US11113535

申请日：2005-04-25

Applicant: Akira Enokihara ,  Hiroyuki Furuya

Inventor： Akira Enokihara ,  Hiroyuki Furuya

IPC: G02F1/035 ,  G02F1/225

CPC classification number: G02F1/0356 ,  G02F1/2255 ,  G02F2001/212 ,  G02F2201/307 ,  G02F2202/32

Abstract: An optical modulator according to the present invention includes an optical waveguide 2a to 2d made of a material with an electro-optic effect and a modulating electrode 3 for applying a modulating electric signal to light propagating through the optical waveguide 2a to 2d. The modulator further includes a periodic structure, of which the equivalent refractive index changes periodically in a light propagation direction and which can reduce the group velocity of the light propagating through the optical waveguide 2a, 2b.

Abstract translation: 根据本发明的光调制器包括由具有电光效应的材料制成的光波导2a至2d以及用于将调制电信号施加到通过光波导2a传播的光的调制电极3至2d 。 调制器还包括周期性结构，其中等效折射率在光传播方向上周期性地变化，并且可以降低通过光波导2a，2b传播的光的群速度。

公开(公告)号：US20050157993A1

公开(公告)日：2005-07-21

申请号：US10482304

申请日：2002-07-02

Applicant: Michael Fokine ,  Lars-Erik Nilsson ,  Asa Claesson ,  Walter Margulis ,  Leif Kjellberg ,  Hania Arsalane ,  Pedro Torres

Inventor： Michael Fokine ,  Lars-Erik Nilsson ,  Asa Claesson ,  Walter Margulis ,  Leif Kjellberg ,  Hania Arsalane ,  Pedro Torres

IPC: G02B6/024 ,  C03C17/00 ,  C03C25/10 ,  G02B6/02 ,  G02B6/10 ,  G02B6/26 ,  G02B6/34 ,  G02B6/44 ,  G02F1/01

CPC classification number: G02B6/02204 ,  C03C23/009 ,  C03C25/1063 ,  C03C25/47 ,  G02B6/022 ,  G02B6/105 ,  G02B6/266 ,  G02B6/4416 ,  G02F1/0115 ,  G02F1/0134 ,  G02F1/0147 ,  G02F2201/307

Abstract: PROBLEM TO BE SOLVED: To provide a polarization control element which may be easily produced and miniaturized and has high reliability. SOLUTION: A core region 11 is a region of a circular shape in cross section disposed at the center of an optical fiber 10 and has a refractive index n1. A clad region 12 is a region disposed around this core region 11 and has a refractive index n2 smaller than the refractive index n1 of the core region 11. A pair of conductive parts 13a and 13b are respectively symmetrical with each other with respect to the optical axis center and are disposed within the clad region 12 over a specified range in a longitudinal direction. When current is passed to a pair of the conductive parts 13a and 13b, respectively, a stress is generated therein and a strain is generated in the core region 11 and the clad region 12. The propagation light propagated in the optical fiber 10 is controlled in the polarization state according to this strain.

Abstract translation: 要解决的问题：提供可以容易地制造和小型化并且具有高可靠性的偏振控制元件。 解决方案：芯部区域11是设置在光纤10的中心并具有折射率n 1的截面为圆形的区域。 包层区域12是围绕该芯区域11设置的区域，其折射率n2小于芯区域11的折射率n 1。 一对导电部件13a和13b分别相对于光轴中心彼此对称，并且在纵向方向上在特定范围内设置在包层区域12内。 当电流分别传递到一对导电部分13a和13b时，其中产生应力，并且在芯部区域11和包层区域12中产生应变。 根据该应变，在光纤10中传播的传播光被控制在偏振状态。

公开(公告)号：US06909823B1

公开(公告)日：2005-06-21

申请号：US10040526

申请日：2001-12-28

Applicant: Wayne V. Sorin ,  B. Yoon Kim

Inventor： Wayne V. Sorin ,  B. Yoon Kim

IPC: G02B6/14 ,  G02B6/34 ,  G02F1/125 ,  H04J14/02 ,  G02B6/26

CPC classification number: G02B6/022 ,  G02B6/14 ,  G02B6/29319 ,  G02B6/29322 ,  G02B6/29382 ,  G02B6/29391 ,  G02F1/125 ,  G02F2201/02 ,  G02F2201/307 ,  H04J14/0209 ,  H04J14/021

Abstract: A method and apparatus that microbend a fiber Bragg grating with a transverse acoustic wave. The fiber Bragg grating reflects one or more Nth order sidebands of reflection wavelengths an optical signal in order to couple the band of wavelenghts within from a first mode to a second mode.

Abstract translation: 一种用横向声波微弯曲光纤布拉格光栅的方法和装置。 光纤布拉格光栅将反射波长的一个或多个N阶边带反射成光信号，以将波长的波段从第一模式耦合到第二模式。

公开(公告)号：US20050089257A1

公开(公告)日：2005-04-28

申请号：US10821627

申请日：2004-04-09

Applicant: Carlos Barrios ,  Michal Lipson ,  Vilson Almeida

Inventor： Carlos Barrios ,  Michal Lipson ,  Vilson Almeida

IPC: G02F1/015 ,  G02F1/025 ,  G02F1/035

CPC classification number: G02F1/025 ,  G02F2201/307

Abstract: An electro-optic modulator is formed on a silicon-on-insulator (SOI) rib waveguide. An optical field in the modulator is confined by using an electrically modulated microcavity. The microcavity has reflectors on each side. In one embodiment, a planar Fabry-Perot microcavity is used with deep Si/SiO2 Bragg reflectors. Carriers may be laterally confined in the microcavity region by employing deep etched lateral trenches. The refractive index of the microcavity is varied by using the free-carrier dispersion effect produced by a p-i-n diode formed about the microcavity. In one embodiment, the modulator confines both optical field and charge carriers in a micron-size region.

Abstract translation: 在绝缘体上硅（SOI）肋波导上形成电光调制器。 调制器中的光场通过使用电调制微腔来限制。 微腔在每侧都有反射器。 在一个实施例中，平面Fabry-Perot微腔与深Si / SiO 2布拉格反射器一起使用。 通过采用深蚀刻的横向沟槽，载体可以侧向限制在微腔区域中。 通过使用由围绕微腔形成的p-i-n二极管产生的自由载流子色散效应来改变微腔的折射率。 在一个实施例中，调制器将光场和电荷载流子都限制在微米尺寸区域中。

公开(公告)号：US06853671B2

公开(公告)日：2005-02-08

申请号：US09967445

申请日：2001-09-28

Applicant: Ansheng Liu ,  Mario J. Paniccia ,  Remus Nicolaescu ,  Richard Jones

Inventor： Ansheng Liu ,  Mario J. Paniccia ,  Remus Nicolaescu ,  Richard Jones

IPC: G02B6/12 ,  G02B6/124 ,  G02F1/01 ,  G02F1/025 ,  H01S3/08

CPC classification number: G02B6/124 ,  G02B2006/12097 ,  G02B2006/12135 ,  G02F1/0147 ,  G02F1/025 ,  G02F2201/307

Abstract: A semiconductor-based laser tuning method and apparatus. In one aspect of the present invention, an apparatus according to an embodiment of the present invention includes a gain medium disposed in a semiconductor substrate. A laser cavity is disposed in the semiconductor substrate and is optically coupled to the gain medium. A first reflector defines one end of the laser cavity. The first reflector includes a first tunable Bragg grating disposed in the semiconductor substrate. The first tunable Bragg grating includes a first plurality of silicon and polysilicon interfaces along the semiconductor substrate such that there is a first plurality of perturbations of a refractive index along the Bragg grating. The first tunable Bragg grating selectively reflects light having a tunable center wavelength so as to emit light through stimulated emission having the tunable center wavelength in the laser cavity. A second reflector defines an other end of the laser cavity.

Abstract translation: 一种基于半导体的激光调谐方法和装置。 在本发明的一个方面中，根据本发明实施例的装置包括设置在半导体衬底中的增益介质。 激光腔设置在半导体衬底中并与光学耦合到增益介质。 第一反射器限定激光腔的一端。 第一反射器包括设置在半导体衬底中的第一可调谐布拉格光栅。 第一可调谐布拉格光栅包括沿着半导体衬底的第一多个硅和多晶硅界面，使得沿着布拉格光栅具有第一多个折射率扰动。 第一可调谐布拉格光栅选择性地反射具有可调谐中心波长的光，以便通过激光腔中具有可调中心波长的受激发射发光。 第二反射器限定激光腔的另一端。

公开(公告)号：US06819691B2

公开(公告)日：2004-11-16

申请号：US10059791

申请日：2002-01-28

Applicant: Shanhui Fan

Inventor： Shanhui Fan

IPC: H01S310

CPC classification number: B82Y20/00 ,  G02B6/1225 ,  G02F1/011 ,  G02F2201/307 ,  G02F2203/055 ,  G02F2203/15

Abstract: We disclose a new structure that allows the creation of sharp and asymmetric lineshapes in optical microcavity systems. In this structure, the response function can vary from 0% to 100% in a frequency range that is narrower than the full width of the resonance itself. Therefore, an optical switch, based upon this structure, may require far less frequency shift to operate, compared with conventional microcavity-based structures. This method may also be used to improve the sensitivity of optical sensors based upon microcavity structures.

Abstract translation: 我们公开了一种新的结构，允许在光学微腔系统中创建锐利和不对称的线条形状。 在该结构中，响应函数可以在比共振本身的全宽窄的频率范围内从0％变化到100％。 因此，与传统的基于微腔的结构相比，基于这种结构的光学开关可能需要更少的频率移动来进行操作。 该方法也可用于提高基于微腔结构的光学传感器的灵敏度。

公开(公告)号：US20040208580A1

公开(公告)日：2004-10-21

申请号：US10190252

申请日：2002-07-05

Inventor： Ximin Zhao

IPC: G02B006/28 ,  H04J014/02

CPC classification number: G02B6/02071 ,  G02B6/02057 ,  G02B6/02204 ,  G02F1/0115 ,  G02F2201/307 ,  H04J14/0209 ,  H04J14/021

Abstract: A re-configurable optical add-drop multiplexer (OADM) (800) includes a first optical circulator (10), a second optical circulator (30) and a fiber Bragg grating (FBG) (20). The first optical circulator has a first circulator port (11), a second circulator port (12) and a third circulator port (13). The second optical circulator has the same structure as the first optical circulator. The FBG has a first state where it reflects an optical signal with a particular wavelength and passes all other wavelengths and a second state where all the optical signals pass through it. Signals of the particular wavelength can thus be dropped from the transmitted signals by reflection of the FBG and output from the third circulator port of the first optical circulator, and new signals of the same dropped wavelength can be added into the transmitted signals though a first circulator port (31) of the second optical circulator.

Abstract translation: 可重新配置的光分插复用器（OADM）（800）包括第一光环行器（10），第二光循环器（30）和光纤布拉格光栅（FBG）（20）。 第一光循环器具有第一循环器端口（11），第二循环器端口（12）和第三循环器端口（13）。 第二光循环器具有与第一光循环器相同的结构。 FBG具有第一状态，其中反射具有特定波长的光信号并通过所有其它波长和第二状态，其中所有光信号通过它。 因此，特定波长的信号可以通过FBG的反射和从第一光循环器的第三循环端口的输出而从发射信号中下降，并且可以通过第一循环器将相同下降波长的新信号添加到发射信号中 第二光循环器的端口（31）。

公开(公告)号：US20040179766A1

公开(公告)日：2004-09-16

申请号：US10807808

申请日：2004-03-23

Inventor： Forrest L. Williams ,  Allen H. Tanner ,  David Marceau ,  Dennis F. Elkins

IPC: G02B006/26

CPC classification number: G02B6/022 ,  G02B6/02171 ,  G02F1/0115 ,  G02F1/0134 ,  G02F1/0147 ,  G02F2201/307 ,  H01S5/0612 ,  H01S5/12

Abstract: A tunable fiber optic component providing environmental isolation, thermal tuning, and mechanical tuning and a method of tuning a fiber optic component using application of substantially simultaneous varying of temperature and mechanical strain is disclosed. A method of using a tunable fiber optic component, for example, a distributed feedback fiber laser, to compensate variations in an optical system, and a method of making a tunable fiber optic component are also disclosed.

Abstract translation: 公开了一种提供环境隔离，热调谐和机械调谐的可调谐光纤组件以及使用基本上同时变化的温度和机械应变来调节光纤部件的方法。 还公开了使用可调谐光纤部件（例如分布式反馈光纤激光器）来补偿光学系统中的变化的方法，以及制造可调光纤部件的方法。

公开(公告)号：US20040037563A1

公开(公告)日：2004-02-26

申请号：US10239410

申请日：2003-01-21

Inventor： Torsten Augustsson

IPC: H04J014/02

CPC classification number: G02B6/4215 ,  G02B6/29317 ,  G02B6/29353 ,  G02B6/29383 ,  G02F1/3136 ,  G02F2201/307 ,  G02F2203/055 ,  G02F2203/585 ,  H04J14/0204 ,  H04J14/0205 ,  H04J14/0206 ,  H04J14/0213 ,  H04J14/0219

Abstract: The present invention relates to a device and a method for optical add/drop multiplexing (OADM) and comprises two MMI structures (3, 23) connected by a MI/MZI waveguide structure (13) comprising wavelength selective means (19, 21, 37, 39), in particular phase shifted Bragg gratings or Bragg gratings of lowpass and highpass type in combination, such that the OADM multiplexer transmits a wavelength channel (nulli) selected in advance and reflects all other channels, wherein a drop functionality is achieved. Simultaneously, a further channel (nullj,) may be added to the multiplexer at the same side as the channel selected in advance is output, where said further channel preferably is centered around the same wavelength as the channel selected in advance. The further channel is transmitted through the Bragg gratings and is superimposed with the other channels, wherein an add functionality is achieved.

Abstract translation: 本发明涉及一种用于光分插复用（OADM）的装置和方法，包括通过包括波长选择装置（19,21,37）的MI / MZI波导结构（13）连接的两个MMI结构（3,23） ，39），特别是组合的相移布拉格光栅或低通和高通型布拉格光栅，使得OADM多路复用器传输预先选择的波长信道（lambdai）并且反映所有其他信道，其中实现了丢弃功能。 同时，另外的信道（lambdaj）可以在与预先选择的信道被输出的同一侧被添加到多路复用器，其中所述另外的信道优选地围绕与预先选择的信道相同的波长居中。 另外的通道通过布拉格光栅传输，并与其他通道叠加，其中实现了添加功能。

公开(公告)号：US20040028316A1

公开(公告)日：2004-02-12

申请号：US10215880

申请日：2002-08-09

Applicant: Fujitsu Limited

Inventor： Kishio Yokouchi

IPC: G02B006/26

CPC classification number: G02F1/011 ,  F03G7/06 ,  G02B6/12007 ,  G02B6/29319 ,  G02B6/29322 ,  G02B6/29323 ,  G02F1/0316 ,  G02F1/035 ,  G02F2201/122 ,  G02F2201/307

Abstract: A method and system are disclosed for switching at least part of a light signal out of a first waveguide by a Bragg grating formed from an electro-optic effect in the first waveguide. The Bragg grating is created by turning on a series of electrodes on each side of the first waveguide. The electrodes create electric fields in the core of the first waveguide which raise the refractive index in certain regions of the core. When the electric fields are tilted and evenly spaced apart, at least part of a light signal propagating through the waveguide, at a predetermined wavelength, is reflected out of the first waveguide. The reflected light signal can be switched back into a second waveguide by use of another Bragg grating. When the electric fields are off in the first waveguide the light signal, including the part of the light signal having the predetermined wavelength, continues straight on through the Bragg grating area. Thus a light signal of the predetermined wavelength is either switched to the second waveguide or kept in the first waveguide depending on whether the voltages are turned on or off on the electrodes.

Abstract translation: 公开了一种用于通过由第一波导中的电光效应形成的布拉格光栅将来自第一波导的光信号的至少一部分切换的方法和系统。 通过在第一波导的每一侧上打开一系列电极来产生布拉格光栅。 电极在第一波导的芯中产生电场，从而提高芯的某些区域的折射率。 当电场倾斜并均匀间隔时，以预定波长传播通过波导的光信号的至少一部分被反射出第一波导。 反射光信号可以通过使用另一布拉格光栅切换回第二波导。 当电场在第一波导中关闭时，包括具有预定波长的光信号的一部分的光信号通过布拉格光栅区域直线延伸。 因此，根据电极上的电压是接通还是关断，预定波长的光信号被切换到第二波导或保持在第一波导中。