Sifotonics Technologies Co., Ltd.

Oracle International Corporation

Chinese Academy of Sciences

Zvision Technologies Co., Ltd.

Tuo Shi

Dong Pan

Pengfei Cai

Mengyuan Huang

Yongbo Shao

Ching-yin Hong

Tzung-I Su

Su Li

Wang Chen

Liangbo Wang

Nai Zhang

Wenhua Li

Vivek Nama

Yizhou Jiang

Natalie You

Eran Cedar

Shipeng Yan

Changhua Chen

Vivek S Shah

Quan Yuan

Muhan Zou

Ning Zhang

Jiayao Liu

Wei Wang

Ming Liu

Qi Liu

Hangbing Lv

Yanhe Ma

Bin Cheng

Zuheng Wu

Jibin Sun

Jiao Liu

Xumeng Zhang

Ping Zheng

Jiuzhou Chen

Tzung I Su

Bingbing Xia

Chengliang Yan

Wenjuan Zhou

Xuan Guo

Provided arethat produces L-lysine, a method for constructing the L-lysine producing strain, and a method for producing L-lysine from the strain. The lysine yield and glucose conversion of the L-lysine producing strain are improved, thereby reducing the production cost.

Method for producing lysine from microorganism and for constructing microorganism

Disclosed are an artificial sensory nervous circuit and a manufacturing method thereof. The artificial sensory nervous circuit includes a sensor (S), a first memristor (RS), and a neuron circuit, where the first memristor (RS) has a unidirectional resistance characteristic. The sensor (S) is configured to sensing an external signal and generating an excitation signal according to the external signal. The first memristor (RS) is configured to generating a response signal according to the excitation signal. The neuron circuit is configured to perform charging and discharging according to the response signal so as to output a pulse signal. With the artificial sensory nervous circuit and the manufacturing method thereof, sensitivity and habituation characteristics of biological perception are realized by using a simple circuit.

Artificial sensory nervous circuit and manufacturing method thereof

Laser radar

A light detection and ranging (LIDAR) includes: a light-emitting unit, a light receiving unit and a control unit. In the light emitting unit, first light from a first light source, after being reflected by a first surface of a first mirror, reaches the scan unit. In the light emitting unit, second light from a second light source, after being reflected by a second mirror and transmitted through the first mirror via a second surface of the first mirror, reaches the scan unit, using an overlapping path with the first light. Light intensity of the second light transmitted through the first mirror is lower than that of the first light reflected by the first mirror. The control unit enables only the first light source, and in response to determining that measurements from the light receiving unit are saturated, automatically switches off the first light source and enable the second light source.

Light detection and ranging system

The present disclosure provides a detailed description of techniques used in systems, methods, and in computer program products for bi-directional social media broker services that connect multiple social media sites using a common management framework. The claimed embodiments address the problem of efficiently scaling and managing bidirectional interaction with multiple social media publishing channels. More specifically, the claimed embodiments are directed to approaches for a computing platform having multiple message broker modules that enable bi-directional communication of messages between a common resource manager and a plurality of social media sites. The message broker modules can receive messages in a unified message format from the common resource manager, queue the messages for asynchronous processing, translate the messages from the unified message format to a site-specific format, and deliver the translated messages to multiple social media sites.

Bi-directional multi-channel social media brokering

Various embodiments of a photonic integrated circuit (PIC) are described herein. A PIC, functioning as a coherent receiver, may include optical components such as an optical coupler, a directional coupler, a beam splitter, a polarizing beam rotator-splitter, a variable optical attenuator, a monitor photodiode, 90-degree hybrid mixer, and a waveguide photodiode. The PIC may also include electrical components such as an electrode, a capacitor, a resistor and a Zener diode.

Silicon photonic integrated circuit with electrostatic discharge protection

Silicon photonic integrated circuit with electrostatic discharge protection mechanism for static electric shocks

Various embodiments of a compensated photonic device structure and fabrication method thereof are described herein. In one aspect, a photonic device may include a substrate and a functional layer disposed on the substrate. The substrate may be made of a first material and the functional layer may be made of a second material that is different from the first material. The photonic device may also include a compensation region formed at an interface region between the substrate and the functional layer. The compensation region may be doped with compensation dopants such that a first carrier concentration around the interface region of function layer is reduced and a second carrier concentration in a bulk region of functional layer is reduced.

Compensated photonic device structure and fabrication method thereof

An imprinting method for forming an integrated optical coupling device on wafer level may include: providing a substrate, with a reflection coating disposed thereon; providing an imprinting mold, with void regions shaped according to a designed lens profile; forming a molding material on the substrate; pressing the imprinting mold on the molding material on the substrate; curing the molding material into a cured molding material; removing the imprinting mold; depositing an anti-reflection film on the cured molding material; and dicing to form an integrated optical coupling device.

Integrated lens-array-on-substrate for optical coupling system and fabrication method thereof

Various embodiments of an integrated polarization rotator-splitter/combiner apparatus are described. An integrated polarization rotator-splitter apparatus may include an input waveguide section, a polarization rotator section, a polarization splitter section and an outgoing waveguide section, which can also be reversely connected as a polarization rotator-combiner.

Polarization rotator-splitter/combiner based on silicon rib-type waveguides

An optical coupler structure may include a substrate, a waveguide section and an anchored cantilever section. The substrate may include a main body and a sub-pillar structure formed on the main body. The waveguide section may be disposed on the substrate, and may include a core waveguide of a first material surrounded by a cladding layer of a second material. The anchored cantilever section may be disposed on the sub-pillar structure on the substrate, which may be configured to support the cantilever section and separate the cantilever section from the main body of the substrate. The anchored cantilever section may include a multi-stage inverse taper core waveguide and a cladding layer, of the second material, which surrounds the multi-stage inverse taper core waveguide.

Optical coupler having anchored cantilever structure with multi-stage inverse taper core waveguide and fabrication method thereof

A compact and highly efficient coupling structure for coupling between DFB-LD and Si PIC edge coupler with suppressed return loss may include a DFB-LD, a Si PIC comprising at least one input edge coupler and at least one output edge coupler, a silica cover lid disposed on the Si PIC and aligned edge to edge with the Si PIC, a single-mode fiber aligned to the at least one output edge coupler of the Si PIC, a lens disposed between the DFB-LD and the at least one input edge coupler of the Si PIC, and an isolator bonded to a facet of the at least one input edge coupler with a first volume of an index matching fluid. The lens may be configured to minimize a mismatch between an output spot size of the DFB-LD and a spot size of the at least one input edge coupler of the Si PIC.

Low return loss silicon photonics package structure

A ring optical modulator includes a SOI substrate, including at least first and second top silicon layers, and a silicon-based ring resonator formed on the SOI substrate. The silicon-based ring resonator includes first and second top silicon layers, a thin dielectric gate layer disposed between the top silicon layers, first and second electric contacts, and first rib-type waveguide and ring-shape rib-type waveguide formed on the second top silicon layer. The thin dielectric layer includes a first side in contact with the first top silicon layer and a second side in contact with the second top silicon layer. With electric signals applied on the electric contacts, free carriers accumulate, deplete or invert within the top silicon layers on the first and second sides of the thin dielectric gate layer beneath the ring-shape rib-type waveguide, simultaneously, and a refractive index of the ring-shape rib-type waveguide confining optical fields is modulated.

Rib-type waveguide silicon modulators and optical devices

Growing community of inventors

Beijing, China

Tuo Shi