公开(公告)号：US20050074194A1

公开(公告)日：2005-04-07

申请号：US10678887

申请日：2003-10-02

申请人： Michael Tan ,  Scott Corzine ,  Mihail Sigalas ,  Chaokun Lin ,  Kostadin Djordjev

发明人： Michael Tan ,  Scott Corzine ,  Mihail Sigalas ,  Chaokun Lin ,  Kostadin Djordjev

IPC分类号： G02B6/12 ,  G02F1/015 ,  G02F1/017 ,  G02F1/01 ,  G02B6/26

CPC分类号： B82Y20/00 ,  G02B6/12007 ,  G02B2006/12097 ,  G02F1/01708 ,  G02F2001/0157 ,  G02F2203/15

摘要： A modulator having a waveguide and a microdisk resonator is disclosed. The waveguide has an input port for receiving a light signal of wavelength λ and an output port for transmitting modulated light. The microdisk resonator has a resonance at λ and is coupled to the waveguide between the input and output ports such that at least 10 percent of the light traveling in the waveguide is coupled to the microdisk resonator. The microdisk resonator further includes a material having a first state and a second state, the material absorbing more of the light in the first state than in the second state. The first and second states are selectable by a signal that is applied to the microdisk resonator. In one embodiment, the waveguide and the microdisk resonator occupy different portions of a sheet of material having the various layers used to construct the resonator.

公开(公告)号：US06920253B2

公开(公告)日：2005-07-19

申请号：US10678887

申请日：2003-10-02

申请人： Michael R. Tan ,  Scott W. Corzine ,  Mihail Sigalas ,  Chaokun Lin ,  Kostadin Djordjev

发明人： Michael R. Tan ,  Scott W. Corzine ,  Mihail Sigalas ,  Chaokun Lin ,  Kostadin Djordjev

IPC分类号： G02B6/12 ,  G02F1/015 ,  G02F1/017 ,  G02F1/01 ,  H04B10/12

CPC分类号： B82Y20/00 ,  G02B6/12007 ,  G02B2006/12097 ,  G02F1/01708 ,  G02F2001/0157 ,  G02F2203/15

摘要： A modulator having a waveguide and a microdisk resonator is disclosed. The waveguide has an input port for receiving a light signal of wavelength λ and an output port for transmitting modulated light. The microdisk resonator has a resonance at λ and is coupled to the waveguide between the input and output ports such that at least 10 percent of the light traveling in the waveguide is coupled to the microdisk resonator. The microdisk resonator further includes a material having a first state and a second state, the material absorbing more of the light in the first state than in the second state. The first and second states are selectable by a signal that is applied to the microdisk resonator. In one embodiment, the waveguide and the microdisk resonator occupy different portions of a sheet of material having the various layers used to construct the resonator.

摘要翻译： 公开了一种具有波导和微盘谐振器的调制器。 波导具有用于接收波长λ的光信号的输入端口和用于传输调制光的输出端口。 微型磁盘谐振器在λ处具有共振，并且在输入和输出端口之间耦合到波导，使得在波导中传播的光的至少10％耦合到微型磁盘谐振器。 所述微盘谐振器还包括具有第一状态和第二状态的材料，所述材料在第一状态下比在第二状态下吸收更多的光。 第一和第二状态可以通过施加到微盘谐振器的信号来选择。 在一个实施例中，波导和微盘共振器占据具有用于构造谐振器的各种层的材料片的不同部分。

公开(公告)号：US20060056760A1

公开(公告)日：2006-03-16

申请号：US10944372

申请日：2004-09-16

申请人： Kostadin Djordjev ,  Michael Tan ,  Chao-Kun Lin ,  Scott Corzine

发明人： Kostadin Djordjev ,  Michael Tan ,  Chao-Kun Lin ,  Scott Corzine

IPC分类号： G02B6/26

CPC分类号： G02B6/12007 ,  G02B2006/12078 ,  G02B2006/12126 ,  G02B2006/12142

摘要： A light modulator having a waveguide and a resonator is disclosed. The waveguide routes light of wavelength λ past the resonator. The resonator is coupled to the waveguide such that a portion of the light is input to the resonator, the resonator having a resonance at λ. The resonator includes a gain region in which light of wavelength λ is amplified and an absorption region in which light of wavelength λ is absorbed, the absorption region having first and second states, the first state absorbing less light of wavelength λ than the second state, the state of the absorption region is determined by an electrical signal coupled to the absorption region. The gain region provides a gain that compensates for the light absorption in the first state. In one embodiment, the waveguide and resonator are critically coupled when the absorption region is in the second state.

公开(公告)号：US20060274801A1

公开(公告)日：2006-12-07

申请号：US11143374

申请日：2005-06-01

申请人： Ashish Tandon ,  Kostadin Djordjev ,  Chao-Kun Lin ,  Michael Tan

发明人： Ashish Tandon ,  Kostadin Djordjev ,  Chao-Kun Lin ,  Michael Tan

IPC分类号： H01S5/00

CPC分类号： B82Y20/00 ,  H01S5/34 ,  H01S5/3407

摘要： In accordance with the invention, increased maximum modulation speeds and improved hole distribution are obtained for light emitting devices. Barrier layers of a quantum well structure for a light emitting device are formed with varying barrier energy heights. Quantum well layers of the quantum well structure are formed between the barrier layers.

公开(公告)号：US20060078254A1

公开(公告)日：2006-04-13

申请号：US10961940

申请日：2004-10-08

申请人： Kostadin Djordjev ,  Chao-Kun Lin ,  Michael Tan

发明人： Kostadin Djordjev ,  Chao-Kun Lin ,  Michael Tan

IPC分类号： G02B6/42 ,  G02B6/26

CPC分类号： G02B6/12007

摘要： Embodiments of the invention involve a monolithic vertical configuration for coupling a ring resonator and a bus waveguides. The monolithic vertical coupling arrangement, with the epitaxial grown coupling between the waveguide and the resonator, provides control of the coupling coefficient. The vertical coupling arrangement allows for different material compositions in the waveguide and resonator structures, e.g. active quantum well resonators and transparent waveguides, to facilitate the design of active WDM components.

摘要翻译： 本发明的实施例涉及用于耦合环形谐振器和总线波导的单片垂直配置。 具有波导和谐振器之间的外延生长耦合的单片垂直耦合布置提供了耦合系数的控制。 垂直耦合布置允许波导和谐振器结构中的不同材料组成，例如。 有源量子阱谐振器和透明波导，以方便有源WDM器件的设计。

公开(公告)号：US20060182399A1

公开(公告)日：2006-08-17

申请号：US11060338

申请日：2005-02-17

申请人： Chao-Kun Lin ,  Kostadin Djordjev ,  Michael Tan

发明人： Chao-Kun Lin ,  Kostadin Djordjev ,  Michael Tan

IPC分类号： G02B6/10

CPC分类号： G02B6/122 ,  G02B2006/12104 ,  G02B2006/12119

摘要： In one embodiment, there is disclosed a waveguide medium using total internal reflection to create a relatively sharp (approximately 90°) bend for optical signals traversing the waveguide. A discontinuity of the medium (such as air) is used to create a turning mirror within the waveguide path. By curving the discontinuity, the entire input optical signal is focused into the output portion of the waveguide, thereby compensating for the diffraction loss of the optical signal at the bend. In one embodiment in order to facilitate proper alignment of the masks certain portions of the waveguide on a first mask are extended (widened) beyond their optimum physical size. This extended portion is then used to position an edge of a second mask, such that optical signal scatter caused by the extended portions of the waveguide are compensated for by adjusting the curvature.

摘要翻译： 在一个实施例中，公开了使用全内反射以对穿过波导的光信号产生相对尖锐（大约90°）弯曲的波导介质。 介质（如空气）的不连续性用于在波导路径内产生转向镜。 通过弯曲不连续性，整个输入光信号被聚焦到波导的输出部分，从而补偿弯曲处的光信号的衍射损耗。 在一个实施例中，为了促进掩模的正确对准，第一掩模上的波导的某些部分被延伸（加宽）超过其最佳物理尺寸。 然后，该扩展部分用于定位第二掩模的边缘，使得由波导的延伸部分引起的光信号散射通过调整曲率来补偿。

公开(公告)号：US08446674B2

公开(公告)日：2013-05-21

申请号：US12910694

申请日：2010-10-22

申请人： Jian Liu ,  Kostadin Djordjev ,  Marc Maurice Mignard

发明人： Jian Liu ,  Kostadin Djordjev ,  Marc Maurice Mignard

IPC分类号： G02B1/10

摘要： Various embodiments include an interferometric modulator device configured to provide improved saturation. In some embodiments, saturation is improved by optically matching the impedance of two materials with different refractive indices using a multilayer having a refractive index gradient. In various embodiments, the thickness one or more of the layers in the multilayer are selected to provide increased saturation. Accordingly, in various embodiments the multilayer having a refractive index gradient helps to narrow the resonance of a pixel such that the band of wavelengths that are reflected from the pixel is smaller. In turn, a device including a combination of red, green and blue pixels may expand the spectrum of colors that are reflected by the device in operation. Additionally, there may be better contrast between whites and blacks, as darker blacks with less hue are produced.

公开(公告)号：US20090244686A1

公开(公告)日：2009-10-01

申请号：US12057161

申请日：2008-03-27

申请人： Kostadin Djordjev

发明人： Kostadin Djordjev

IPC分类号： G02B26/00

CPC分类号： G02B26/001 ,  G09G3/2003 ,  G09G3/3466 ,  G09G5/06

摘要： An interferometric modulating device is provided with a spacing layer positioned between the fixed reflector and the electrode. The spacing layer prevents shorting between the movable reflector and the electrode and provides a filtering cavity to improve color saturation.

摘要翻译： 干涉式调制装置设置有位于固定反射器和电极之间的间隔层。 间隔层防止可移动反射器和电极之间的短路，并提供过滤腔以改善色彩饱和度。

公开(公告)号：US08111262B2

公开(公告)日：2012-02-07

申请号：US11750891

申请日：2007-05-18

申请人： Kostadin Djordjev ,  Kasra Khazeni ,  Alok Govil

发明人： Kostadin Djordjev ,  Kasra Khazeni ,  Alok Govil

IPC分类号： G09G5/02

CPC分类号： G02B26/001 ,  G02B27/0012

摘要： Methods are described for selecting reflective layer distances in an interferometric modulator display that result in reduced color sensitivity to temperature and process variation. Colors are selected for interferometric modulator subpixels that correspond to a minimum in the rate that the colors change with respect to reflective layer distance. In some cases, colors are selected that deviate from the minimums in order to obtain a desired target color (e.g., a desired white point).

摘要翻译： 描述了用于在干涉式调制器显示器中选择反射层距离的方法，其导致对温度和工艺变化的颜色敏感性降低。 选择对应于颜色相对于反射层距离变化的速率的最小值的干涉式调制器子像素的颜色。 在某些情况下，选择偏离最小值的颜色以获得期望的目标颜色（例如，期望的白点）。

公开(公告)号：US08068269B2

公开(公告)日：2011-11-29

申请号：US12566510

申请日：2009-09-24

申请人： Kostadin Djordjev

发明人： Kostadin Djordjev

IPC分类号： G02B26/00

CPC分类号： G02B26/001 ,  G09G3/2003 ,  G09G3/3466 ,  G09G5/06

摘要： An interferometric modulating device is provided with a spacing layer positioned between the fixed reflector and the electrode. The spacing layer prevents shorting between the movable reflector and the electrode and provides a filtering cavity to improve color saturation.

摘要翻译： 干涉式调制装置设置有位于固定反射器和电极之间的间隔层。 间隔层防止可移动反射器和电极之间的短路，并提供过滤腔以改善色彩饱和度。