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1. 发明授权

US11832364B2 Systems and methods for wavelength locking in optical sensing systems 有权
公开(公告)号：US11832364B2
公开(公告)日：2023-11-28
申请号：US17373167
申请日：2021-07-12
申请人： Apple Inc.
发明人： Alfredo Bismuto , Yi-Kuei Ryan Wu , Thomas Schrans , Andrea Trita , Aaron Zilkie
IPC分类号： H05B47/105 , G02B6/42 , G02B6/293 , G01J1/42 , G01J1/02
CPC分类号： H05B47/105 , G01J1/0238 , G01J1/4228 , G02B6/29301 , G02B6/29328 , G02B6/29343 , G02B6/29395 , G02B6/4215 , G02B6/2935 , G02B6/2938 , G02B6/29358
摘要： Disclosed herein is an integrated photonics device including a frequency stabilization subsystem for monitoring and/or adjusting the wavelength of light emitted by one or more light sources. The device can include one or more selectors that can combine, select, and/or filter light along one or more light paths, which can include light emitted by a plurality of light sources. Example selectors may include, but are not limited to, an arrayed waveguide grating (AWG), a ring resonator, a plurality of distributed Bragg reflectors (DBRs), a plurality of filters, and the like. Output light paths from the selector(s) can be input into one or more detector(s). The detector(s) can receive the light along the light paths and can generate one or more signals as output signal(s) from the frequency stabilization subsystem. A controller can monitor the wavelength and can adjust or generate control signal(s) for the one or more light sources to lock the monitored wavelength to a target wavelength (or within a targeted range of wavelengths).

2. 发明授权

US11656405B2 Optical multi/demultiplexing circuit 有权
公开(公告)号：US11656405B2
公开(公告)日：2023-05-23
申请号：US17631794
申请日：2019-08-01
申请人： Nippon Telegraph and Telephone Corporation
发明人： Manabu Oguma , Osamu Moriwaki , Kenya Suzuki
IPC分类号： G02B6/12 , G02B6/293
CPC分类号： G02B6/12011 , G02B6/12016 , G02B6/12019 , G02B6/29358 , G02B6/29361
摘要： Provided is an optical wavelength multi/demultiplexing circuit with a high rectangular transmission loss spectrum that is able to secure loss flatness of a transmission band, maintain/reduce a guard bandwidth of wavelength channel spacing, and broaden a transmission bandwidth. The circuit uses a multimode waveguide for a connecting part between a field modulation device and an AWG. The field modulation device is constituted by a common input waveguide, an optical branching unit, optical delay lines, a multiplex interference unit, and a mode converter/multiplexer.

3. 发明申请

US20160153113A1 CONDUCTIVITY BASED ON SELECTIVE ETCH FOR GAN DEVICES AND APPLICATIONS THEREOF 审中-公开
标题翻译：基于选择性蚀刻的器件的电导率及其应用
公开(公告)号：US20160153113A1
公开(公告)日：2016-06-02
申请号：US14929015
申请日：2015-10-30
申请人： Yale University
发明人： Yu Zhang , Qian Sun , Jung Han
IPC分类号： C25F3/12 , C25B1/04 , G02B6/293 , G02B5/18 , H01L21/02 , C30B23/02 , H01L21/306 , H01L33/00 , H01L33/32 , C30B33/10 , C30B29/40 , C30B25/18 , C25B1/00 , H01L21/326
CPC分类号： C25F3/12 , C25B1/003 , C25B1/04 , C30B23/025 , C30B25/186 , C30B29/406 , C30B33/10 , G02B1/02 , G02B1/118 , G02B5/1861 , G02B6/29356 , G02B6/29358 , G02B2207/107 , H01L21/02002 , H01L21/02005 , H01L21/0237 , H01L21/02458 , H01L21/02513 , H01L21/0254 , H01L21/0262 , H01L21/02631 , H01L21/02658 , H01L21/306 , H01L21/30612 , H01L21/30625 , H01L21/30635 , H01L21/326 , H01L21/7813 , H01L33/0025 , H01L33/0062 , H01L33/007 , H01L33/0075 , H01L33/0079 , H01L33/16 , H01L33/32 , Y02E60/366 , Y10T428/24997
摘要： This invention relates to methods of generating NP gallium nitride (GaN) across large areas (>1 cm2) with controlled pore diameters, pore density, and porosity. Also disclosed are methods of generating novel optoelectronic devices based on porous GaN. Additionally a layer transfer scheme to separate and create free-standing crystalline GaN thin layers is disclosed that enables a new device manufacturing paradigm involving substrate recycling. Other disclosed embodiments of this invention relate to fabrication of GaN based nanocrystals and the use of NP GaN electrodes for electrolysis, water splitting, or photosynthetic process applications.
摘要翻译：本发明涉及跨越具有受控孔径，孔密度和孔隙率的大面积（> 1cm 2）生成NP氮化镓（GaN）的方法。还公开了产生基于多孔GaN的新型光电子器件的方法。此外，公开了分离和产生独立的结晶GaN薄层的层转移方案，其能够实现涉及衬底回收的新器件制造范例。本发明的其它公开的实施例涉及GaN基纳米晶体的制造和用于电解，水分解或光合过程应用的NP GaN电极的使用。

4. 发明授权

US09244266B2 Tunable optical filter and method of manufacture thereof 有权
标题翻译：可调谐滤光器及其制造方法
公开(公告)号：US09244266B2
公开(公告)日：2016-01-26
申请号：US14559752
申请日：2014-12-03
申请人： Lightwaves 2020, Inc.
发明人： Jing-Jong Pan
IPC分类号： G02F1/03 , G02F1/07 , G02B26/00 , G01J3/26 , G02B6/293 , G02F1/055 , B32B37/14 , B32B37/18 , G02F1/21 , G02B1/11
CPC分类号： G02B26/001 , B32B37/144 , B32B37/18 , B32B2307/202 , B32B2307/416 , B32B2315/02 , B32B2551/00 , G01J3/26 , G02B1/11 , G02B6/29358 , G02F1/055 , G02F1/0551 , G02F1/0553 , G02F1/0556 , G02F2001/213 , G02F2201/38 , G02F2202/28 , G02F2203/055 , G02F2203/21
摘要： A tunable optical filter is formed in the structure of an etalon. A thin electro-optic ceramic substrate is fixed between two end substrates. Each end substrate has an inner parallel surface toward said electro-optic ceramic substrate covered by an electrode layer and a reflecting layer. An adhesive which attaches the electro-optic ceramic substrate to each first and second end substrates has a consistency so as to avoid stress on the electro-optic ceramic substrate. A voltage imposed on the electro-optic ceramic substrate by the electrode layers on the inner parallel surfaces of the first and second end substrates effectively controls an optical distance between the reflective coating layers on the inner parallel surfaces of the first and second end substrates of the etalon structure. The electro-optic ceramic substrate is preferably PMN-PT ((1−x)Pb (Mg⅓ Nb⅔) O3-x—Pb Ti O3) and no more than 160 μm thick.
摘要翻译：在标准具的结构中形成可调谐滤光器。薄的电光陶瓷衬底固定在两个端部衬底之间。每个端部基板具有朝向被电极层和反射层覆盖的所述电光陶瓷基板的内部平行表面。将电光陶瓷衬底附接到每个第一和第二端衬底的粘合剂具有一致性，以避免对电光陶瓷衬底的应力。通过第一和第二端基板的内平行表面上的电极层施加在电光陶瓷基板上的电压有效地控制第一和第二端基板的内平行表面上的反射涂层之间的光学距离标准杆结构。电光陶瓷基板优选为PMN-PT（（1-x）Pb（Mg 1/3 Nb y）O 3-x-Pb Ti O 3），不大于160μm厚。

5. 发明申请

US20150316764A1 VIRTUAL IMAGE PHASE ARRAY 审中-公开
标题翻译：虚拟图像相位阵列
公开(公告)号：US20150316764A1
公开(公告)日：2015-11-05
申请号：US14703944
申请日：2015-05-05
申请人： LightMachinery Inc.
发明人： John H. Hunter , Ian J. MILLER , Shane BOISCLAIR , Edward S. WILLIAMS , Chris WIMPERIS , Vaz ZASTERA
IPC分类号： G02B27/00 , G02B27/42 , G02B1/11
CPC分类号： G02B27/144 , G02B1/11 , G02B6/29358 , G02B27/0087 , G02B27/4205
摘要： A virtual image phase array (VIPA) includes two parallel surfaces, a first highly-reflective surface with a highly-reflective coating, and a second partially-reflective surface. The first highly-reflective surface also requires an input zone with an anti-reflection coating, which abuts the highly-reflective coating, with a transition zone therebetween. Light enters the VIPA through the input zone, and reflects back and forth between the highly and partially reflective surfaces, gradually leaking out through the partially reflective surface. To minimize the transition zone and thereby minimize the input angle of incidence and maximize the number of reflections per unit of length, the substrate coated with the highly-reflective coating is subsequently polished at an acute angle resulting in the transition zone having the same sharp angle.
摘要翻译：虚像相位阵列（VIPA）包括两个平行表面，具有高反射涂层的第一高反射表面和第二部分反射表面。第一高反射表面还需要具有防反射涂层的输入区，该防反射涂层邻接高反射涂层，其间具有过渡区。光通过输入区域进入VIPA，并在高度和部分反射的表面之间来回反射，并逐渐从部分反射的表面渗出。为了使过渡区域最小化，从而最小化入射入射角度并使每单位长度的反射数量最大化，随后用高反射涂层涂覆的基底以锐角抛光，导致具有相同锐角的过渡区域。

6. 发明申请

US20150260914A1 POLARIZATION-INSENSITIVE SILICON-PHOTOTONIC OPTICAL RECEIVER 有权
标题翻译：极化无机硅光电接收器
公开(公告)号：US20150260914A1
公开(公告)日：2015-09-17
申请号：US13588261
申请日：2012-08-17
申请人： Xuezhe Zheng , Ying L. Luo , Ashok V. Krishnamoorthy , Guoliang Li
发明人： Xuezhe Zheng , Ying L. Luo , Ashok V. Krishnamoorthy , Guoliang Li
IPC分类号： G02B6/126 , G02B6/124 , G02B6/12
CPC分类号： G02B6/12023 , G02B6/12007 , G02B6/124 , G02B6/126 , G02B6/29308 , G02B6/29358
摘要： Using silicon photonic components that support a single polarization, the output of an optical receiver is independent of the polarization of an optical signal. In particular, using a polarization-diversity technique, the two orthogonal polarizations in a single-mode optical fiber are split in two and processed independently. For example, the two optical signals are provided by a polarizing splitting grating coupler. Subsequently, a wavelength channel in the two optical signals is selected using a wavelength-selective filter (for example, using a ring resonator or an echelle grating) and combined at an optical detector (such as a photo-detector) to achieve polarization-independent operation.
摘要翻译：使用支持单一极化的硅光子分量，光接收机的输出与光信号的偏振无关。特别地，使用偏振分集技术，将单模光纤中的两个正交偏振分成两部分并独立处理。例如，两个光信号由偏振分光光栅耦合器提供。随后，使用波长选择滤波器（例如，使用环形谐振器或梯形光栅）选择两个光信号中的波长信道，并在光学检测器（例如光电检测器）处组合以实现偏振无关操作。

7. 发明授权

US09083472B2 Optical feed-forward equalizer for MIMO signal processing 有权
标题翻译：用于MIMO信号处理的光前馈均衡器
公开(公告)号：US09083472B2
公开(公告)日：2015-07-14
申请号：US13786638
申请日：2013-03-06
申请人： Roland Ryf
发明人： Roland Ryf
IPC分类号： H04B10/06 , H04B10/69 , H04B10/61 , G02B6/293
CPC分类号： H04B10/6971 , G02B6/29358 , G02B6/29395 , H04B10/615
摘要： A feed-forward equalizer can be used in the host optical receiver to perform at least some of the desired signal processing in the optical domain, e.g., prior to coherently detecting and digitizing the received optical signal(s). In some embodiments, the signal processing implemented in the feed-forward equalizer can at least partially compensate the adverse effects of chromatic dispersion, polarization-mode dispersion, and/or spatial-mode mixing/crosstalk imparted on the received optical signal(s) in the optical transport link. This reduces the signal-processing load of and the signal-processing requirements to the receiver's electrical DSP.
摘要翻译：在主机光接收机中可以使用前馈均衡器来执行光域中的所需信号处理中的至少一些，例如在相干检测和数字化所接收的光信号之前。在一些实施例中，在前馈均衡器中实现的信号处理可以至少部分地补偿在接收的光信号上施加的色散，偏振模色散和/或空间模式混合/串扰的不利影响光传输链路。这将信号处理负载和信号处理要求降低到接收机的电气DSP。

8. 发明授权

US09035408B2 Nanometer-scale level structures and fabrication method for digital etching of nanometer-scale level structures 有权
标题翻译：纳米级水平结构的纳米级水平结构和数字蚀刻制造方法
公开(公告)号：US09035408B2
公开(公告)日：2015-05-19
申请号：US14269292
申请日：2014-05-05
申请人： Andrew J. Boudreau , Michael K. Yetzbacher , Marc Christophersen , Bernard F. Phlips
发明人： Andrew J. Boudreau , Michael K. Yetzbacher , Marc Christophersen , Bernard F. Phlips
IPC分类号： H01L27/146
CPC分类号： H01L27/14629 , G01J3/26 , G02B6/136 , G02B6/29358 , H01L21/31144 , H01L27/14601 , H01L27/14625 , H01L27/14683 , H01L27/14685
摘要： A ramped etalon cavity structure and a method of fabricating same. A bi-layer stack is deposited on a substrate. The bi-layer stack includes a plurality of bi-layers. Each bi-layer of the plurality of bi-layers includes an etch stop layer and a bulk layer. A three dimensional photoresist structure is formed by using gray-tone lithography. The three dimensional photoresist is plasma etched into the bi-layer stack, thereby generating an etched bi-layer stack. The etched bi-layer stack is chemically etched with a first chemical etchant to generate a multiple-step structure on the substrate, wherein the first chemical etchant stops at the etch stop layer.
摘要翻译：斜坡标准孔结构及其制造方法。双层堆叠沉积在基板上。双层堆叠包括多个双层。多个双层的每个双层包括蚀刻停止层和体层。通过使用灰度光刻法形成三维光致抗蚀剂结构。将三维光致抗蚀剂等离子体蚀刻到双层堆叠中，从而产生蚀刻的双层堆叠。蚀刻的双层堆叠用第一化学蚀刻剂化学蚀刻，以在衬底上产生多步结构，其中第一化学蚀刻剂在蚀刻停止层处停止。

9. 发明授权

US08818193B2 Multichannel tunable optical dispersion compensator 有权
标题翻译：多通道可调谐光学色散补偿器
公开(公告)号：US08818193B2
公开(公告)日：2014-08-26
申请号：US12569134
申请日：2009-09-29
申请人： Fan Chen , Yongkang Hu , Zhenli Wen , Dongshen Han , Fahua Lan , Kevin Dapeng Zhang
发明人： Fan Chen , Yongkang Hu , Zhenli Wen , Dongshen Han , Fahua Lan , Kevin Dapeng Zhang
IPC分类号： H04J14/02 , H04B10/00 , H04B10/12 , H04B10/04
CPC分类号： H04B10/25133 , G02B6/272 , G02B6/29358 , G02B6/29394 , G02B6/29395
摘要： An embodiment of the invention includes a tunable optical dispersion compensator (TODC) comprising a first beam displacer on an optical path, wherein the first beam displacer separates an optical signal into a first beam and a second beam, and one or more polarizing beam splitters on the optical path, wherein the one or more polarizing beam splitters keep the first beam and the second beam on the optical path. The TODC also comprises one or more etalons on the optical path, wherein the one or more etalons are tunable to introduce a group delay in the first beam and the second beam, and a reflecting mirror on the optical path, wherein the reflecting mirror returns the optical signal back along the optical path. The TODC further comprises a second beam displacer, wherein the second beam displacer combines the first beam and the second beam into an output optical signal.
摘要翻译：本发明的一个实施例包括一个可调谐光学色散补偿器（TODC），其包括光路上的第一光束置换器，其中第一光束置换器将光信号分离成第一光束和第二光束，以及一个或多个偏振分束器所述光路，其中所述一个或多个偏振分束器将所述第一光束和所述第二光束保持在所述光路上。 TODC还包括光路上的一个或多个标准具，其中一个或多个标准具可调谐以在第一光束和第二光束中引入群延迟，以及在光路上引入反射镜，其中反射镜返回光信号沿光路返回。 TODC还包括第二光束置换器，其中第二光束置换器将第一光束和第二光束组合成输出光信号。

10. 发明申请

US20140192827A1 RESONATOR, VARIABLE WAVELENGTH OPTICAL FILTER, AND VARIABLE WAVELENGTH LASER DIODE 有权
标题翻译：谐振器，可变波长光学滤波器和可变波长激光二极管
公开(公告)号：US20140192827A1
公开(公告)日：2014-07-10
申请号：US14020928
申请日：2013-09-09
申请人： Electronics and Telecommunications Research Institute
发明人： Kwang Ryong OH
IPC分类号： G02B6/10 , H01S5/06
CPC分类号： G02B6/10 , G01J3/10 , G01J3/26 , G02B6/29358 , H01S5/0287 , H01S5/06 , H01S5/101 , H01S5/142
摘要： A variable wavelength diode according to the inventive concept includes a resonator and a plurality of cylindrical lenses. The resonator includes slab waveguides of which resonance lengths are different from each other. The slab waveguides are disposed on a planar light wave circuit (PLC). Thus, the variable wavelength diode realizes a high variation speed and a continuous variation of a beam at the same time.
摘要翻译：根据本发明构思的可变波长二极管包括谐振器和多个柱面透镜。谐振器包括共振长度彼此不同的平板波导。平板波导设置在平面光波电路（PLC）上。因此，可变波长二极管同时实现高变化速度和波束的连续变化。

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