13 results about "Optical data transmission" patented technology

The invention relates to an optoelectronic device, in particular a combined micro-LED (2) and a micro-detector (5), comprising a first semiconductor layer (3a) with a first section (7a) and a laterally offset second section (7b), a second semiconductor layer (3b) arranged on a first section (7a), and an active region (4) arranged between the first section (7a) and the second semiconductor layer (3b). The optoelectronic device further comprises an upper contact element (8) arranged on the second semiconductor layer (3b) and a lower contact element (6) electrically coupled to the first section (7a).The first and second semiconductor layers are doped with different conductivities, and the first section (7a), the active region (4), and the second semiconductor layer (3b) form a semiconductor layer stack configured to emit light of at least one first wavelength when a supply voltage is applied to the upper and lower contact elements (8, 6). Furthermore, the second section (7b) is configured to accommodate a detector element (5) and / or is substantially transparent to light of the first wavelength.

The utility model discloses an optical calibration unit and an optical data transmitter, relates to the technical field of optical communication, the optical calibration unit comprises a collimation light source and a calibration prism, the calibration prism comprises a hollow cylinder used for accommodating the collimation light source and an optical processing surface, the optical processing surface is located at one end of the hollow cylinder, and the collimation light source is arranged in the hollow cylinder. The optical processing surface comprises a first optical surface, a second optical surface and a third optical surface, the first optical surface is hollow, an angle alpha 1 is formed between the second optical surface and the optical calibration unit mounting surface, an angle alpha 2 is formed between the third optical surface and the optical calibration unit mounting surface, and alpha 1 is smaller than alpha 2; a light beam emitted by the collimation light source is divided into three beams by the calibration prism, the first light beam is horizontally emitted from the first optical surface, the second light beam is refracted on the second optical surface and emitted at an angle beta 1, the third light beam is refracted on the third optical surface and emitted at an angle beta 2, and beta 1gt; beta2.

In an optical data transmission system, a beam modulator is configured to embed a data set into an input beam. The multimode optical waveguide network has an in-coupling region for receiving an input beam. The multimode optical waveguide network is configured to direct an input beam to an out-coupling region of the multimode optical waveguide network. The spatial coherence detector is configured to measure the phase and amplitude of the output light field at a plurality of positions. The output light field is at least partially defined by the input light beam, thus exhibiting a distortion effect caused by the light beam passing through the multimode waveguide network. Signal processing is applied to the output of the spatial coherence detector to compensate for distortion effects to restore the data set embedded in the input beam from the output of the spatial coherence detector.

Aspects of the present disclosure include systems, methods, and device for optical modulation and optical data transmission. An optical modulator system may include a micro-ring for optical data transmission, a p-n phase shifter for modulating the optical data transmission, a capacitive phase shifter for tuning the optical data transmission. A wavelength locking mechanism can include a feedback loop to monitor an output wavelength of the micro-ring modulator and provide real-time adjustments to at least one of the p-n phase shifter and the capacitive phase shifter to keep the optical data transmission at a desired wavelength. A tunable modulator may comprise: a capacitive phase shifter region, the capacitor phase shifter region comprising a capacitor wherein a dielectric and a waveguide may be disposed between the first plate of the capacitor and the second plate of the capacitor, such that at least one of accumulation or depletion of charge on the capacitor effects a change in the refractive index of the waveguide.

The invention relates to an optical data transmission unit (10) comprising at least one optical data transmission element (12) for transmitting and / or receiving optical signals (30), in particular serial optical signals, a signal input (22) for receiving electrical signals, and a signal output (32) for transmitting electrical signals, wherein the signal input (22) and the signal output (32) are designed for serial electrical linking with individual controlling of the at least one optical data transmission element (12). The invention further relates to an arrangement (50) of a plurality of optical data transmission units (10), to a system (100) for optical communication, having at least one arrangement (50), and to a method for operating a system (100) for optical communication.

The invention relates to an actuator (1) for automation technology for actuating a fitting such as a gate valve or a valve in a pipeline, comprising: a motor (10) such as an electric motor or a fluid motor such as a pneumatic motor or hydraulic motor; a gearbox (20); an output (30) with an output shaft (31); an electronic operating circuit (40) for operating the motor; a communication device (50) for wired communication with electronic devices of a network (100), characterized by the fact that the communication device (50) is configured to check a state and / or a property of a connecting line (101) of the network (100) for electrical or optical data transmission or to provide measured values ​​of related measured quantities.

The invention relates to an optical data transmission unit (10) comprising at least one optical data transmission element (12) for sending and / or receiving optical signals (30), in particular serial optical signals, a signal input (22) for receiving electrical signals and a signal output (32) for sending electrical signals, wherein the signal input (22) and signal output (32) are configured for serial electrical linking with individual control of the at least one optical data transmission element (12). The invention further relates to an arrangement (50) of a plurality of optical data transmission units (10), a system (100) for optical communication with at least one arrangement (50) and a method for operating a system (100) for optical communication.

For example, this provides a simultaneous data transfer and distance measurement method that enables highly accurate distance measurement even at high data transfer speeds of at least 1 gigabit per second (1 Gbit / s). [Solution] The present invention relates to a method for simultaneously transmitting data and measuring distance between a first device and a second device, wherein the first device and the second device each have a transmitting device configured for optical data transmission, a receiving device configured for optical data reception, and a control unit coupled to and / or at least partially integrated with the transmitting device and the receiving device, and a data signal is transmitted from the first device to the second device. The method is characterized in that a received clock signal is generated from the data signal to indicate the clock information of the data signal, the phase position of the received clock signal is identified, and the distance between the first device and the second device is identified from the phase position.

The invention provides a plug-in modular paraxial optical coherence tomography device and an application method. The plug-in modular paraxial optical coherence tomography device is low in cost, easy to install, good in compatibility and capable of achieving general connection with an operating microscope and high-precision imaging. Comprising an OCT imaging module which is connected with an objective lens interface on a microscope and used for being connected with the microscope in a matched mode and achieving OCT imaging; the control driving module is connected with the OCT imaging module and is used for realizing imaging optical axis correction and optical data transmission; wherein the OCT imaging module comprises a shell and a connecting cover plate which is detachably assembled with the shell, the connecting cover plate is detachably connected with the objective lens interface, an optical module is arranged in the shell, the optical module is connected with the control driving module, and the control driving module is connected with the optical module. And an adapter for connecting an objective lens is arranged on the shell at the optical imaging tail end of the optical module.

The invention relates to an optoelectronic device, in particular a µ-LED and / or a µ-detector, comprising a first semiconductor layer stack comprising a first layer, a second layer, and a first active region between the first and second layers, wherein the first and second layers have different conductivity types; a second semiconductor layer stack arranged on top of the first semiconductor layer stack comprising a third layer, a fourth layer, and a second active region between the third and fourth layers, wherein the third and fourth layers have different conductivity types; an optical layer between the first semiconductor layer stack and the second semiconductor layer stack; a lower contact element in electrical contact with the first layer; and a middle contact element in electrical contact with the second and third layers.and an essentially transparent upper contact element that is in electrical contact with the fourth layer. The first active region has a smaller band gap than the second active region, and the optical layer has a higher transparency for light with an energy smaller than the second band gap and, in particular, greater than or equal to the first band gap, than for light with an energy equal to or greater than the second band gap.

The invention provides a method for monitoring an optical data transmission link in which first diagnostic data from at least one first optical transmission unit (101-107) of a data transmission link (100) are acquired at predetermined time intervals, and upon detection of an anomaly in the acquired first diagnostic data, second diagnostic data from at least two second optical transmission units (101-107) of the data transmission link (100) are repeatedly acquired during a predetermined diagnostic period, whereby a fault analysis is performed depending on the acquired second diagnostic data. Furthermore, the invention provides a system designed for carrying out the method.

The invention relates to a vertical emitting semiconductor laser device (1), in particular a VCSEL, comprising an upper Bragg mirror (2) and a lower Bragg mirror (3), an active region (4) for generating laser radiation (5) being arranged between the upper Bragg mirror (2) and the lower Bragg mirror (3); wherein the vertical emission semiconductor laser device (1) has an upper outcoupling surface (20) for the laser radiation (5), the upper outcoupling surface (20) having both a mode-selective microstructure (21) and a polarization-selective microstructure (22). The invention also relates to the use of a surface relief on the VCSEL outcoupling surface, to a communication system, and to a method for producing a corresponding vertical emission semiconductor laser device.

The invention relates to an optoelectronic device, in particular a combined micro-LED and a micro-detector, comprising a substrate and a semiconductor layer stack arranged on the substrate. The semiconductor layer stack comprises a first layer, a second layer, a third layer, a first active region between the first and second layers, and a second active region between the second and third layers. The first and second layers are doped with a first conductivity type, and the third layer is doped with a second conductivity type that differs from the first conductivity type. Furthermore, the second layer has a higher doping concentration of the first conductivity type than the first layer, and the first active region has a smaller band gap than the second active region.