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1. 发明申请

US20130051410A1 HIGH CONTRAST GRATING BASED SATURABLE ABSORBER FOR MODE-LOCKED LASERS AND ITS APPLICATIONS IN PASSIVELY MODE-LOCKED VERTICAL-CAVITY SURFACE-EMITTING LASERS 有权
标题翻译：用于模式锁定激光器的基于高对比度光刻的可饱和吸收器及其在常规模式锁定的垂直孔表面激光器中的应用
公开(公告)号：US20130051410A1
公开(公告)日：2013-02-28
申请号：US13593407
申请日：2012-08-23
申请人： Connie Chang-Hasnain , Weijan Yang , Christopher Chase , Forrest G. Sedgwick
发明人： Connie Chang-Hasnain , Weijan Yang , Christopher Chase , Forrest G. Sedgwick
IPC分类号： G02B5/18 , H01S3/113
CPC分类号： G02B5/1809 , H01S5/18319 , H01S5/18361
摘要： A saturable absorber (SA) based on a high-contrast grating (HCG) having a buried layer of quantum structures for absorption, and which is particularly well suited for use in a mode-locked application. The HCG-SA provides three times the bandwidth compared with traditional DBR structures, while exhibiting a lower saturation fluence due to the field enhancement inside the grating. Varying grating bar width over one or two axis provides lensing effects on the optical output, while chirping of the period and duty cycle changes optical phase relationships. Novel VCSEL embodiments with external or internal cavities are described using the HCG-SA.
摘要翻译：基于具有用于吸收的量子结构的掩埋层的高对比度光栅（HCG）的可饱和吸收体（SA），特别适用于锁模应用。与传统的DBR结构相比，HCG-SA提供了三倍的带宽，同时由于光栅内的场增强而呈现较低的饱和能量密度。在一个或两个轴上变化的光栅条宽度对光输出提供透镜效应，而周期和占空比的啁啾会改变光学相位关系。使用HCG-SA描述具有外部或内部空腔的新型VCSEL实施例。

2. 发明申请

US20110150502A1 HIGH-SPEED OPTICAL TRANSMITTERS USING CASCADED OPTICALLY INJECTION-LOCKED LASERS 审中-公开
标题翻译：使用嵌入式光学注射锁定激光器的高速光学发射器
公开(公告)号：US20110150502A1
公开(公告)日：2011-06-23
申请号：US12561947
申请日：2009-09-17
申请人： Xiaoxue Zhao , Erwin K. Lau , Ming C. Wu , Connie Chang-Hasnain , Hyuk-Kee Sung , Devang Parekh
发明人： Xiaoxue Zhao , Erwin K. Lau , Ming C. Wu , Connie Chang-Hasnain , Hyuk-Kee Sung , Devang Parekh
IPC分类号： H04B10/04
CPC分类号： H01S5/4006 , H01S5/06226 , H01S5/065 , H01S5/12 , H01S5/183 , H01S5/426
摘要： Apparatus and method for increasing optical transmission bandwidth in response to chaining, in cascade, one or more slave lasers onto a master laser. Each laser is configured for optical injection locking (OIL) and each slave laser is locked onto the master laser. The first and each subsequent slave laser are detuned to tailor frequency characteristics of apparatus output. The transmitter can be scaled up by cascading additional injection-locked lasers together. The invention supports multiple compatible modulation formats, such as amplitude modulation (AM), phase modulation (PM), and frequency modulation (FM), for tailoring the output to the application of interest, while any type of laser can be used for the master and slave lasers.
摘要翻译：响应于将级联的一个或多个从属激光器链接到主激光器上来增加光传输带宽的装置和方法。每个激光器配置为光学注入锁定（OIL），每个从属激光器锁定在主激光器上。第一个和每个随后的从属激光器失谐以调整装置输出的频率特性。可以通过将附加的注入锁定激光器级联在一起来扩展发射器。本发明支持多种兼容调制格式，例如幅度调制（AM），相位调制（PM）和频率调制（FM），用于将输出定制到感兴趣的应用，而任何类型的激光器都可以用于主机和从属激光器。

3. 发明申请

US20070115553A1 Ultra broadband mirror using subwavelength grating 有权
标题翻译：超宽带镜使用亚波长光栅
公开(公告)号：US20070115553A1
公开(公告)日：2007-05-24
申请号：US11479986
申请日：2006-06-29
申请人： Connie Chang-Hasnain , Carlos Rondina Mateus , Michael Huang
发明人： Connie Chang-Hasnain , Carlos Rondina Mateus , Michael Huang
IPC分类号： G02B5/18
CPC分类号： G02B5/1809 , G02B5/0816 , G02B5/1861 , G02B26/001 , G02B26/0808 , G02B26/0833 , G02B27/42 , G02B27/4255 , G02B27/4261 , H01S5/0655 , H01S5/18319 , H01S5/1835 , H01S5/18355 , H01S5/18366 , H01S5/187
摘要： A sub-wavelength grating structure that has a very broad reflection spectrum and very high reflectivity comprising segments made of high refractive index material disposed on a layer of low refractive index material and a low refractive index material disposed above and between the segments. The index differential between the high and low index materials determines the bandwidth and modulation depth. The larger difference in refractive indices gives rise to wider reflection bands. The reflection is sensitive to parameters such as the grating period, the grating thickness, the duty cycle of the grating, the refractive index and the thickness of the low index layer underneath the grating. The design is scalable for different wavelengths, and facilitates monolithic integration of optoelectronic devices at a wide range of wavelengths from visible to far infrared. The sub-wavelength grating reflectors may be used in a variety of settings such as tunable etalon filters and as a replacement for conventional distributed Bragg reflectors.
摘要翻译：具有非常宽的反射光谱和非常高的反射率的亚波长光栅结构，包括设置在低折射率材料层上的高折射率材料和设置在片段之间和之间的低折射率材料的片段。高和低折射率材料之间的指数差异决定了带宽和调制深度。折射率的较大差异产生更宽的反射带。反射对诸如光栅周期，光栅厚度，光栅的占空比，折射率以及光栅下方的低折射率层的厚度等参数敏感。该设计可针对不同的波长进行扩展，并且可以实现从可见光到远红外线的广泛波长范围内的光电子器件的单片集成。亚波长光栅反射器可以用于各种设置，例如可调谐的标准具滤光器，并且作为常规分布布拉格反射器的替代。

4. 发明申请

US20050167648A1 Variable semiconductor all-optical buffer using slow light based on electromagnetically induced transparency 有权
公开(公告)号：US20050167648A1
公开(公告)日：2005-08-04
申请号：US11091978
申请日：2005-03-28
申请人： Connie Chang-Hasnain , Pei-Cheng Ku
发明人： Connie Chang-Hasnain , Pei-Cheng Ku
IPC分类号： G02F1/35 , H01S5/00 , H01S5/026 , H01S5/10 , H01S5/34 , H01S5/50 , H01L29/06
CPC分类号： B82Y20/00 , G02F1/35 , G02F2202/32 , G11C13/04 , H01S5/0057 , H01S5/026 , H01S5/105 , H01S5/3412 , H01S5/50
摘要： A variable semiconductor all-optical buffer and method of fabrication is provided where buffering is achieved by slowing down the optical signal using a control light source to vary the dispersion characteristic of the medium based on electromagnetically induced transparency (EIT). Photonic bandgap engineering in conjunction with strained quantum wells (QWs) and quantum dots (QDs) achieves room temperature operation of EIT. Photonic crystals are used to sharpen the spectral linewidths in a quantum well structure due to its density of states and in a quantum-dot structure caused by the inhomogeneity of the dot size, typically observed in state-of-the-art QD materials. The configuration facilitates monolithic integration of an optical buffer with an amplifier and control laser to provide advantages over other material systems as candidates for optical buffers.

5. 发明授权

US08526471B2 High contrast grating based saturable absorber for mode-locked lasers and its applications in passively mode-locked vertical-cavity surface-emitting lasers 有权
标题翻译：用于锁模激光器的高对比度光栅基可饱和吸收器及其在被动锁模垂直腔表面发射激光器中的应用
公开(公告)号：US08526471B2
公开(公告)日：2013-09-03
申请号：US13593407
申请日：2012-08-23
申请人： Connie Chang-Hasnain , Weijian Yang , Christopher Chase , Forrest G. Sedgwick
发明人： Connie Chang-Hasnain , Weijian Yang , Christopher Chase , Forrest G. Sedgwick
IPC分类号： H01S3/113 , H01S3/098 , G02B5/18
CPC分类号： G02B5/1809 , H01S5/18319 , H01S5/18361
摘要： A saturable absorber (SA) based on a high-contrast grating (HCG) having a buried layer of quantum structures for absorption, and which is particularly well suited for use in a mode-locked application. The HCG-SA provides three times the bandwidth compared with traditional DBR structures, while exhibiting a lower saturation fluence due to the field enhancement inside the grating. Varying grating bar width over one or two axis provides lensing effects on the optical output, while chirping of the period and duty cycle changes optical phase relationships. Novel VCSEL embodiments with external or internal cavities are described using the HCG-SA.
摘要翻译：基于具有用于吸收的量子结构的掩埋层的高对比度光栅（HCG）的可饱和吸收体（SA），特别适用于锁模应用。与传统的DBR结构相比，HCG-SA提供了三倍的带宽，同时由于光栅内的场增强而呈现较低的饱和能量密度。在一个或两个轴上变化的光栅条宽度对光输出提供透镜效应，而周期和占空比的啁啾会改变光学相位关系。使用HCG-SA描述具有外部或内部空腔的新型VCSEL实施例。

6. 发明授权

US08488646B2 HCG reflection enhancement in diverse refractive index material 有权
$HCG reflection enhancement in diverse refractive index material$
标题翻译：各种折射率材料的HCG反射增强
公开(公告)号：US08488646B2
公开(公告)日：2013-07-16
申请号：US13593375
申请日：2012-08-23
申请人： Connie Chang-Hasnain , Christopher Chase , Igor Karagodsy
发明人： Connie Chang-Hasnain , Christopher Chase , Vadim Karagodsky
IPC分类号： H01S5/00
CPC分类号： G02B5/1809 , H01S5/18319 , H01S5/18361
摘要： Enhanced reflectivity High-Contrast Gratings are described which operate in different medium. An HCG is described with a deep/buried metallization layer separated at a distance of least three to four grating thicknesses from the grating. Reflective bandwidth of the HCG is substantially increased, such as by a factor or five, by inclusion of the deep/buried metallization layer. An HCG is described which provides high reflectivity, even when embedded into materials of a moderate to high index of refraction, such as semiconductor material. Vertical cavity surface emitting laser embodiments are described which utilize these reflectivity enhancements, and preferably utilize HCG reflectors for top and/or bottom mirrors.
摘要翻译：增强的反射率描述了在不同介质中工作的高对比度光栅。 HCG被描述为具有从光栅至少三到四个光栅厚度的距离分开的深/掩埋金属化层。 HCG的反射带宽通过包含深/掩埋金属化层而显着增加，例如通过因子或五。描述了提供高反射率的HCG，即使当嵌入中等至高折射率的材料（例如半导体材料）时也是如此。描述了利用这些反射率增强的垂直腔表面发射激光器实施例，并且优选地使用用于顶部和/或底部反射镜的HCG反射器。

7. 发明授权

US08442374B2 Ultra-low loss hollow core waveguide using high-contrast gratings 有权
标题翻译：超低损耗中空芯波导使用高对比度光栅
公开(公告)号：US08442374B2
公开(公告)日：2013-05-14
申请号：US13109205
申请日：2011-05-17
申请人： Connie Chang-Hasnain , Ye Zhou , Vadim Karagodsky , Forrest G. Sedgwick , Michael Chung-Yi Huang
发明人： Connie Chang-Hasnain , Ye Zhou , Vadim Karagodsky , Forrest G. Sedgwick , Michael Chung-Yi Huang
IPC分类号： G02B6/34 , G02B6/036 , G02B6/10
CPC分类号： G02B6/1223 , B82Y20/00 , G02B6/122
摘要： Optical waveguides using segmented periodically-spaced high contrast gratings bounding a hollow core propagation region on at least two sides. Incident light is received in a hollow waveguide (HW) region (core) between opposing HCG faces which provide lateral confinement in response to glancing reflections of the incident light beam from high refractive index segments of the HCG as it traverses the core. Embodiments are described for planar waveguides (1D) having a planar core between two planar HCGs, as well as 2D waveguides, such as having rectangular segments of the HCG through which light is propagated. Additionally, other configurations of HCG-HW, including those having arbitrary incidence and azimuth, angled HCG segments, propagation in a direction which is transverse, or alternatively parallel, to the segments of the HCG.
摘要翻译：光波导使用在至少两侧上界定中空核心传播区域的分段周期性间隔的高对比度光栅。入射光被接收在相对的HCG面之间的中空波导（HW）区域（核心）中，所述相对的HCG面在响应于穿过核心时来自HCG的高折射率段的入射光束的扫视反射而提供横向约束。对于在两个平面HCG之间具有平面磁芯的平面波导（1D）以及2D波导（例如具有传播光的HCG的矩形部分）来描述实施例。此外，HCG-HW的其他配置，包括具有任意入射和方位，角度HCG段的那些，在横向或可选地平行于HCG的区段的方向上传播。

8. 发明申请

US20070153860A1 Sub-wavelength grating integrated VCSEL 审中-公开
标题翻译：子波长光栅集成VCSEL
公开(公告)号：US20070153860A1
公开(公告)日：2007-07-05
申请号：US11438480
申请日：2006-05-19
申请人： Connie Chang-Hasnain , Michael Huang , Ye Zhou , Carlos Mateus
发明人： Connie Chang-Hasnain , Michael Huang , Ye Zhou , Carlos Mateus
IPC分类号： H01S5/00 , G02B27/42 , G02B5/18
CPC分类号： G02B5/1809 , G02B5/0816 , G02B5/1861 , G02B26/001 , G02B26/0808 , G02B26/0833 , G02B27/42 , G02B27/4255 , G02B27/4261 , H01S5/0655 , H01S5/18319 , H01S5/1835 , H01S5/18355 , H01S5/18366 , H01S5/187
摘要： A vertical cavity surface emitting laser (VCSEL) is described using a sub-wavelength grating (SWG) structure that has a very broad reflection spectrum and very high reflectivity. The grating comprises segments of high and low refractive index materials with an index differential between the high and low index materials. By way of example, a SWG reflective structure is disposed over a low index cavity region and above another reflective layer (either SWG or DBR). In one embodiment, the SWG structure is movable, such as according to MEMS techniques, in relation to the opposing reflector to provide wavelength selective tuning. The SWG-VCSEL design is scalable to form the optical cavities for a range of SWG-VCSELs at different wavelengths, and wavelength ranges.
摘要翻译：使用具有非常宽的反射光谱和非常高的反射率的亚波长光栅（SWG）结构来描述垂直腔表面发射激光器（VCSEL）。光栅包括具有高折射率材料和低折射率材料之间的折射率差的高折射率材料和低折射率材料的片段。作为示例，SWG反射结构设置在低折射率空腔区域上并且在另一反射层（SWG或DBR）上方。在一个实施例中，SWG结构可以例如根据MEMS技术相对于相对的反射器是可移动的，以提供波长选择性调谐。 SWG-VCSEL设计可扩展，以形成不同波长和波长范围的一系列SWG-VCSEL的光学腔。

9. 发明授权

US06686209B2 Reagents for detecting cannabinoids 失效
标题翻译：检测大麻素的试剂
公开(公告)号：US06686209B2
公开(公告)日：2004-02-03
申请号：US09805469
申请日：2001-03-12
申请人： Guohong Wang , Thomas Foley , Connie Chang , Greg Liang , Albert Avila
发明人： Guohong Wang , Thomas Foley , Connie Chang , Greg Liang , Albert Avila
IPC分类号： G01N33533
CPC分类号： G01N33/54306 , G01N27/44726 , G01N33/948 , Y10S436/815
摘要： In this disclosure, novel caanabinol-based tracers suitable for use in immunoassays that detect cannabinoids in a biological sample are disclosed. These cannabinol-based tracers are particularly useful in a continuous flow displacement immunoassay. The disclosure also describes the processes for synthesizing the novel tracers, and the application of these tracers in fluorescence immunoassays for detecting and quantifying cannabinoids in biological samples.
摘要翻译：在本公开中，公开了适用于检测生物样品中的大麻素的免疫测定中的新型卡拉尼醇类示踪剂。这些基于大麻酚的示踪剂在连续流量置换免疫测定中特别有用。本公开还描述了合成新型示踪剂的方法，以及这些示踪剂在荧光免疫测定中的应用，用于检测和定量生物样品中的大麻素。

10. 发明授权

US09093818B2 Nanopillar optical resonator 有权
标题翻译：纳米纤维光学谐振器
公开(公告)号：US09093818B2
公开(公告)日：2015-07-28
申请号：US13184019
申请日：2011-07-15
申请人： Connie Chang-Hasnain , Forrest Sedgwick , Roger Chen , Thai-Truong Du Tran , Kar Wei Ng , Wai Son Ko
发明人： Connie Chang-Hasnain , Forrest Sedgwick , Roger Chen , Thai-Truong Du Tran , Kar Wei Ng , Wai Son Ko
IPC分类号： H01S5/00 , H01S5/10 , H01S5/30 , H01L33/24 , H01L33/30 , H01L33/32 , H01L33/26 , H01L33/00
CPC分类号： H01S5/1042 , H01L33/0066 , H01L33/24 , H01L33/26 , H01L33/30 , H01L33/32 , H01S5/0014 , H01S5/026 , H01S5/041 , H01S5/1075 , H01S5/3013 , H01S5/32333
摘要： Monolithically integrated optical resonators are disclosed. An optical resonator may be a nanopillar optical resonator that is formed directly on a substrate and promotes a helically-propagating cavity mode. The helically-propagating cavity mode may result in significant reflection or, total internal reflection at an interface of the nanopillar optical resonator and the substrate even if refractive indices of the nanopillar optical resonator and the substrate are the same or similar. As a result, strong optical feedback, and thus strong resonance, may be provided in the nanopillar optical resonator.
摘要翻译：公开了单片集成光谐振器。光学谐振器可以是直接形成在衬底上并促进螺旋传播腔模的纳米柱光学谐振器。即使纳米柱光学谐振器和衬底的折射率相同或相似，螺旋传播的腔模式也可能导致在纳米柱光学谐振器和衬底的界面处的显着反射或全内反射。因此，可以在纳米柱光学谐振器中提供强的光学反馈，从而提供强烈的共振。

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