137 results about "Optical routing" patented technology

The invention relates to the technical field of satellite laser communication, and discloses a laser communication double-end on-orbit calibration system and method, and the system comprises an A end and a B end which are in communication connection and have the same structure; the end B is a second laser communication terminal; the A end is a first laser communication terminal which comprises a main light path, and a transmitting branch, a receiving branch, a tracking branch and a calibration branch which are connected with the main light path; the main light path is composed of an A-end optical antenna, an A-end reflex reflector, an A-end fine tracking galvanometer, an A-end first spectroscope, an A-end second spectroscope, an A-end third spectroscope and an A-end emission galvanometer which are connected in sequence; the transmitting branch is connected with the A-end transmitting galvanometer; the receiving branch is connected with the A-end third spectroscope; the calibration branch is connected with the A-end second spectroscope; and the tracking branch is connected with the A-end first spectroscope. According to the invention, on-orbit receiving and transmitting coaxial calibration is carried out, calibration is carried out without the help of a ground end, and the efficiency is improved.

Methods and systems for routing single photons to selected destinations apply a single photon source optically coupled to a frequency demultiplexer of a photonic network. The frequency demultiplexer comprises plural outputs, each of the outputs is associated with a respective frequency band. A photon from the single photon source is directed to a selected one of the outputs by configuring the single photon source to emit photons having frequencies lying within the one of the frequency bands corresponding to the selected output and controlling the single photon source to emit the photon. The methods and systems may be applied to entangle a quantum state of a quantum system of the single photon source with another quantum system.

Integrated optical waveguides, direct-bonded waveguide interface joints, optical routing and interconnects are provided. An example optical interconnect joins first and second optical conduits. A first direct oxide bond at room temperature joins outer claddings of the two optical conduits and a second direct bond joins the inner light-transmitting cores of the two conduits at an annealing temperature. The two low-temperature bonds allow photonics to coexist in an integrated circuit or microelectronics package without conventional high-temperatures detrimental to microelectronics. Direct-bonded square, rectangular, polygonal, and noncircular optical interfaces provide better matching with rectangular waveguides and better performance. Direct oxide-bonding processes can be applied to create running waveguides, photonic wires, and optical routing in an integrated circuit package or in chip-to-chip optical communications without need for conventional optical couplers. An example wafer-level process fabricates running waveguides, optical routing, and direct-bonded optical interconnects for silicon photonics and optoelectronics packages when two wafers are joined.

The invention discloses an optical path active vibration isolation system used in an in-situ measurement environment and an automatic calibration method, and relates to the technical field of in-situ measurement. The optical path active vibration isolation system comprises a measurement interferometer and a reference interferometer. The measurement interferometer is illuminated by a white light source through a tunable filter, the tunable filter is used for filtering light emitted from the white light source and selecting a set wavelength, so that the camera generates an interferogram generated only by the set wavelength, and light with different wavelengths sequentially passes through the tunable filter, so that the camera captures a series of interferograms with different wavelengths; the absolute optical path difference is calculated in real time by analyzing the interferogram; the reference interferometer and the measurement interferometer share the same optical path, are illuminated by an infrared super light emitting diode, and are used for observing and compensating environmental noise. According to the invention, the problem of noise interference measurement in application scenes such as large-scale manufacturing workshops is solved.

The invention discloses an optical lens for imaging. The optical lens comprises five lenses. The five lenses are sequentially a first lens, a second lens, a third lens, a fourth lens and a fifth lens from the object side to the image side along an optical path. Each of the five lenses has an object-side surface facing the object-side direction and an image-side surface facing the image-side direction. The first lens element has positive refractive power. The second lens element has an image-side surface being concave in a paraxial region thereof. The object-side surface of the third lens element is convex in a paraxial region, and the image-side surface of the third lens element is concave in a paraxial region. The fourth lens element has an object-side surface being convex in a paraxial region thereof and an image-side surface being concave in a paraxial region thereof. When specific conditions are met, the optical lens for imaging can meet the requirements of a mobile focusing function, a telescopic function, miniaturization and high imaging quality at the same time. The invention further discloses an image capturing device with the optical lens for imaging and an electronic device with the image capturing device.

The invention provides an optical fiber sensor system for monitoring temperature, and the system comprises an optical fiber sensor of which the end part is provided with a sensitive layer containing a samarium-doped fluorescent material; the excitation light source is used for exciting the sensitive layer to generate a fluorescence signal; the ultraviolet light source is used for irradiating the sensitive layer to reduce trivalent samarium ions into divalent samarium ions; the optical routing assembly is used for coupling output light of the excitation light source and the ultraviolet light source to the optical fiber sensor and directionally transmitting a fluorescence signal returned by the optical fiber sensor; the band-pass filter is used for receiving the fluorescence signal and transmitting a wave band from 600nm to 700nm; and the signal processing unit is used for analyzing the transmitted fluorescence signal and outputting temperature data.

The invention discloses a photographic optical lens group which comprises six optical elements. The six optical elements are sequentially a first optical element, a second optical element, a third optical element, a fourth optical element, a fifth optical element and a sixth optical element from the object side to the image side along an optical path. Each of the six optical elements has an object-side surface facing the object-side direction and an image-side surface facing the image-side direction. The first optical element has positive refractive power. The first optical element has an object-side surface being convex in a paraxial region thereof. The fourth optical element has positive refractive power. The fourth optical element has an object-side surface being convex in a paraxial region thereof. When specific conditions are met, the photographing optical lens group can simultaneously meet the requirements of a telescopic function, miniaturization and high imaging quality. The invention further discloses an image capturing device with the photographing optical lens group and an electronic device with the image capturing device.

The application provides a dual-wavelength coaxial aiming system capable of automatic collimation, which is used for attitude adjustment and target positioning aiming of a picosecond terminal optical path cone target of inertial confinement fusion (ICF). The system comprises automatic collimation optical paths and aiming optical paths of different working wavelengths; the automatic collimation optical paths comprise a light source, a light splitting prism, a secondary mirror, a reflecting mirror and a CCD detector; the aiming optical paths are composed of a primary mirror, a secondary mirror, a lens group, a light splitting prism and a CCD detector group, and each optical element is coaxial; the system multiplexes the secondary mirror, and realizes automatic collimation and positioning aiming through different wavelength transmission and reflection respectively; the system adopts combination of flint and crown glasses to correct chromatic aberration of different wavelengths; the image planes of the dual-wavelength optical paths are located at the same position; and the system adopts a coaxial two-mirror structure, and is compact in structure and small in size.

The waveguide optical splitter comprises a main optical path extending in the transmission direction of a light source and a plurality of optical fibers arranged in the main optical path and used for transmitting the light source. The main light path is connected with a plurality of light splitting path groups, the main light path is formed by integrating one ends of a plurality of optical fibers, each light splitting path group is formed by grouping the other ends of the optical fibers according to different numbers, and the plurality of light splitting path groups are arranged around the axis of the main light path as the center; the number of the optical fibers in the light splitting path group is gradually increased from inside to outside in the radial direction of the main light path; compared with the prior art, the number of the optical fibers in the plurality of light splitting path groups is different, and the number of the optical fibers in the light splitting paths is gradually increased from inside to outside in the radial direction of the main light path. Therefore, the light intensity of the light source entering the plurality of light splitting path groups in the light splitter is uniformly distributed, the transmission uniformity of the light source is improved, and the transmission effect of the light source is improved.

The invention discloses a camera lens group which comprises seven lenses. The seven lenses are sequentially a first lens, a second lens, a third lens, a fourth lens, a fifth lens, a sixth lens and a seventh lens from the object side to the image side along an optical path. Each of the seven lenses has an object-side surface facing the object-side direction and an image-side surface facing the image-side direction. The first lens element has negative refractive power. The second lens element has an image-side surface being concave in a paraxial region thereof. The third lens element has an image-side surface being convex in a paraxial region thereof. The fourth lens element has negative refractive power. The sixth lens element with positive refractive power has an object-side surface being convex in a paraxial region thereof and an image-side surface being convex in a paraxial region thereof. The seventh lens element has an image-side surface having an inflection point. When specific conditions are met, the camera lens group can meet the requirements of wide viewing angle, miniaturization and high imaging quality at the same time. The invention further discloses an image capturing device with the camera lens group and an electronic device with the image capturing device.

The utility model discloses a counting weighing machine, which comprises a blanking mechanism, a material receiving mechanism, a light source device and a camera device, the blanking mechanism comprises a vibration conveying device, the vibration conveying device is connected with a plurality of vibration conveying discs, the feeding ends of the plurality of vibration conveying discs are gathered at a central position, and the discharging ends of the plurality of vibration conveying discs extend outwards; the light source device comprises a plurality of light source modules, the light source modules are annularly arranged, and the vibration conveying device is located in an annular ring formed by the light source modules. The camera device comprises a plurality of grain counting cameras, and the plurality of grain counting cameras are annularly arranged in a circle and are arranged below the vibration conveying device; a light path is formed between the light source module and the grain counting camera, in the process that materials at the discharging ends of the multiple vibration conveying discs fall to the material collecting mechanism, the materials pass through the light path, and the grain counting camera obtains the discharging number of the materials. According to the utility model, the problems of how to improve the accuracy of the grain counting machine and how to improve the grain counting efficiency of the grain counting machine in the prior art are solved.

Provided is a technology capable of improving uniformity of irradiation intensity at a relative position with respect to surface-emitting faces (122a, 123a). Lighting devices (122, 123) are provided with: a plurality of light sources (122e, 123e) provided with the surface-emitting faces (122a, 123a); and optical path control plates (122b, 123b) that are provided on the surface-emitting faces (122a, 123a) of the plurality of light sources (122e, 123e) and that control the optical paths of irradiation light from the surface-emitting faces (122a, 123a). The irradiation light controlled by the optical path control plates (122b, 123b) is irradiated.

This disclosure discloses a photographic optical system comprising five lenses. The five lenses, arranged sequentially from the object side to the image side along the optical path, are a first lens, a second lens, a third lens, a fourth lens, and a fifth lens. Each of the five lenses has an object-side surface facing the object side and an image-side surface facing the image side. The first lens has positive refractive power. The object-side surface of the second lens is concave near the optical axis. The fifth lens has negative refractive power, and its image-side surface is concave near the optical axis. Under certain conditions, the photographic optical system can simultaneously meet the requirements of miniaturization and high image quality. This disclosure also discloses an image-capturing device having the above-described photographic optical system and an electronic device having the image-capturing device.

Apparatus and methods employing wormhole structures supporting ultra-high density optical routing systems. Microstructures comprising wormhole tunnels are formed in optical looms with wormhole openings arranged in patterns, such as a high-density XY grid. Optical fibers are inserted into respective wormhole tunnels, and sleeves are used to precisely align fiber ends. A rack loom comprising a wormhole backplane is fabricated in a similar manner, with wormhole openings arrayed in the same patterns. The sleeves comprise plug-receptacle sleeve pairs, where when an optical loom (or connector bar of the optical loom) face urged toward the front face of the rack loom, the plug and receptacle sleeves are mated, resulting in precise alignment of the optical fiber ends in the pairs of sleeves. Palpebral structures may also be fabricated to provide a self-cleaning function with optional lubrication. The solutions provide more than an order of magnitude improvement over current fiber connector densities, while substantially reducing costs.

A local equipment (100) for connection to a single fibre optical link (152), comprising: a laser light source (104) for generating a high power continuous wave, cw, downstream optical signal; and monitoring apparatus (106) for determining, based on an amplitude characteristic of a received upstream optical signal, whether the upstream optical signal is from a remote node or is a reflection from within the optical link, wherein the laser light source is operative to control generation of the downstream optical signal dependent what is determined. A remote equipment (200) for connection to the optical link (152) for receiving a downstream optical signal having an optical power, comprising: an optical splitter (204) for forming a return optical signal; an optical to electrical converter (206) configured to provide electrical power to optical signal conditioning apparatus (210) operative to apply an amplitude characteristic to the return optical signal dependent on the received optical power; and an optical routing element (208).

The invention discloses a camera shooting optical lens which comprises six lenses. The six lenses are sequentially a first lens, a second lens, a third lens, a fourth lens, a fifth lens and a sixth lens from the object side to the image side along an optical path. Each of the six lenses has an object-side surface facing the object-side direction and an image-side surface facing the image-side direction. The first lens element has positive refractive power. The image-side surface of the fifth lens element is concave in a paraxial region, and the image-side surface of the fifth lens element has at least one critical point in an off-axis region. The sixth lens element has an object-side surface being convex in a paraxial region, and the sixth lens element has at least one critical point in an off-axis region. When specific conditions are met, the camera shooting optical lens can meet the requirements of wide viewing angle and high imaging quality at the same time. The invention further discloses an image capturing device with the shooting optical lens and an electronic device with the image capturing device.

The utility model provides a laser rainproof device, which comprises a front cover, a rear cover and a body, the body is provided with an accommodating cavity for accommodating a laser emitter, the accommodating cavity is provided with a front opening and a rear opening for entering and exiting the accommodating cavity on the body, the front cover can cover the front opening, and the rear cover can cover the rear opening. The rear cover can cover the rear opening; the front cover is provided with glass so as to form an optical path of the laser transmitter. The laser transmitter is accommodated in the body, the body is provided with the front cover and the rear cover, and the front cover is provided with the glass, so that the light path of the laser transmitter is not blocked. Therefore, the laser rain-proof device can better protect the laser emitter and prevent the laser emitter from being eroded by rainwater in the air. According to the laser rainproof device, the purpose that the laser transmitter can have a better waterproof function in an outdoor environment can be achieved.

Various embodiments disclosed herein describe optomechanical phase shifters. The optomechanical phase shifters may be configured with an asymmetry that improves the performance of the OM phase shifter as a function of wavelength. In some instances, the optomechanical phase shifter includes a section of a waveguide having an asymmetric cross-sectional shape. In other instances an optomechanical phase shifter is incorporated into a controllable optical switch, such that OM phase shifters may be actuated to selectively route light to different outputs of the controllable optical switch.

This invention discloses a distributed optical switching and interconnect chip and system having multiple connected nodes, each node including an optical routing unit with one side having multiple internal input / output ports and the other side having multiple external input / output ports, a laser array and a photodetector array, connected to the internal input and output ports, respectively. The external output ports are connected to the external input ports of other nodes through optical waveguides. The signals received by the photodetectors can be dropped to the node or re-routed to the lasers by an electronic packet switching chip for re-transmission to other nodes. The invention integrates and encapsulates laser arrays, photodetector arrays, optical routing units and interconnection network in one chip. The distributed optical switching chip and system architecture have the advantages of high scalability, low latency and low power consumption, and can be used for multi-chip computing systems and datacenters.

This invention provides an image-capturing optical lens assembly comprising nine lenses. The nine lenses, arranged sequentially from the object side to the image side along the optical path, are a first lens, a second lens, a third lens, a fourth lens, a fifth lens, a sixth lens, a seventh lens, an eighth lens, and a ninth lens. Each of the nine lenses has an object-side surface facing the object side and an image-side surface facing the image side. The total number of lenses in the image-capturing optical lens assembly is nine. The first lens has positive refractive power. The second lens has negative refractive power. The image-side surface of the ninth lens is concave near the optical axis and has at least one inflection point. Under certain conditions, the image-capturing optical lens assembly can simultaneously meet the requirements of a large image sensor, miniaturization, and high image quality.

The invention discloses a regional high-precision laser time-frequency transmission device, which comprises a low-jitter picosecond laser, a laser emission light path, a measurement control and processing module, a single-photon detector, a laser receiving light path, a monitoring camera, a pyramid reflector and a box body. A plurality of sets of devices can form a regional time-frequency transmission network. A clock signal is accessed to the device, the low-jitter picosecond laser outputs a laser pulse time-frequency signal under the trigger of the measurement control and processing module, the laser pulse time-frequency signal is emitted from the laser emission light path and is aimed at a far-end device through the monitoring camera, laser echoes are returned, and laser emitted by the far-end device is received to the single-photon detector through the laser receiving light path. A laser emitting light path and a laser receiving light path form local calibration through a beam splitter, the distance and the time-frequency difference of a far-end device are obtained through data processing, meanwhile, a pyramid reflector can reflect laser of the far-end device, the distance and the time-frequency difference of a local device are obtained, and therefore a regionalized free space laser time-frequency transmission network can be formed.

The invention discloses an optical system lens group. The optical system lens group comprises six lenses. The six lenses are sequentially a first lens, a second lens, a third lens, a fourth lens, a fifth lens and a sixth lens from the object side to the image side along an optical path. Each of the six lenses has an object-side surface facing the object-side direction and an image-side surface facing the image-side direction. The first lens element has negative refractive power. The second lens element has an object-side surface being concave in a paraxial region thereof. The third lens element has positive refractive power. The fourth lens element has positive refractive power. The fifth lens element has an object-side surface being concave in a paraxial region thereof. The sixth lens element has negative refractive power. When specific conditions are met, the optical system lens group can simultaneously meet the requirements of large viewing angle, high imaging quality, miniaturization and image recognition. The invention further discloses an image capturing device with the optical lens assembly and an electronic device with the image capturing device.

Disclosed is an optical modulator for a photonic circuit, comprising at least one optical waveguide for guiding multiple optical signals through a modulation region of the modulator, wherein the optical modulator is configured to simultaneously and non-independently modulate an optical property of the multiple optical signals propagating through the modulating region in response to receiving a control input. Also disclosed is a photonic integrated circuit, a sensor, an optical system and an optical routing network comprising the optical modulator. Additionally disclosed is a method for modulating multiple optical signals in said photonic circuit, and a method for operating a photonic integrated circuit including multiple optical modulating devices.

The invention discloses a photographic optical lens group which comprises four lenses. The four lenses are sequentially a first lens, a second lens, a third lens and a fourth lens from the object side to the image side along an optical path. The four lenses are respectively provided with an object side surface facing the object side direction and an image side surface facing the image side direction. The first lens element has positive refractive power. The third lens element with positive refractive power has an object-side surface being concave in a paraxial region thereof and an image-side surface being convex in a paraxial region thereof. The object-side surface of the third lens element and the image-side surface of the third lens element are aspheric. At least one of the object-side surface and the image-side surface of the third lens element has at least one inflection point. When specific conditions are met, the photographing optical lens group can meet the requirements of miniaturization and high imaging quality at the same time. The invention further discloses an image capturing device with the photographing optical lens group and an electronic device with the image capturing device.

The application belongs to the technical field of optical device detection, and specifically discloses a pyramidal prism angle error detection device. The application comprises a collimator, a diaphragm, an incident polarizer, a polarization controller and a light path single-pass device. After the collimator emits incident light to the pyramidal prism to be detected, three pairs of light paths with different paths are generated through three reflecting surfaces of the pyramidal prism to be detected. Then, the reverse light path in each pair of light paths is eliminated through the control of the diaphragm, the incident polarizer, the polarization controller and the light path single-pass device. Thus, the redundant imaging information caused by the reverse light path is eliminated, and the recognition rate of the crosshair center algorithm in imaging is effectively improved. Meanwhile, the application also proposes an improved scheme for the slit pattern of a reticle, and the crosshair imaging of different light paths can be distinguished according to the imaging color or the inclination angle, so that the recognition rate of the crosshair center algorithm is further improved, and the detection precision of the pyramidal prism angle error is also improved.

A communication system that includes a master communication device, a service communication device, and passive optical routing devices is provided. The master communication device obtains first signal from data source or modem and directs first laser beam carrying the first signal in a downstream path to the service communication device directly or via the plurality of passive optical routing devices. The service communication device demodulates the first signal from the first laser beam, re-modulates the demodulated first signal into a plurality of different radio frequency (RF) signals associated with different communication protocols having different communication ranges, and serves a plurality of end-user devices based on wireless communication capabilities of the plurality of end-user devices and the re-modulation of the demodulated first signal into the plurality of different RF signals.

The invention discloses an image capturing optical system comprising six lenses. The six lenses are sequentially a first lens, a second lens, a third lens, a fourth lens, a fifth lens and a sixth lens from the object side to the image side along an optical path. The second lens element has an image-side surface being concave in a paraxial region thereof. The third lens element has positive refractive power. The fourth lens element with negative refractive power has an image-side surface being convex in a paraxial region thereof. The fifth lens element with positive refractive power has an image-side surface being convex in a paraxial region thereof. The image-side surface of the sixth lens element has at least one inflection point. The image capturing optical system further comprises an aperture, and the aperture is located between the object and the second lens. When specific conditions are met, the imaging optical system can meet the requirements of miniaturization, large viewing angle and high imaging quality at the same time. The invention further discloses an image capturing device with the image capturing optical system and an electronic device with the image capturing device.

An image capturing optical system includes seven lenses. The seven lenses are sequentially arranged along an optical path from an object side to an image side as a first lens, a second lens, a third lens, a fourth lens, a fifth lens, a sixth lens, and a seventh lens. The seven lenses respectively have an object side surface facing an object side direction and an image side surface facing an image side direction. The third lens has a negative refractive power. The fifth lens has a concave object side surface at a vicinity of an optical axis. The sixth lens has a positive refractive power. The seventh lens has a negative refractive power. The seventh lens has a convex object side surface at a vicinity of an optical axis. The seventh lens has a concave image side surface at a vicinity of an optical axis, and the image side surface of the seventh lens has at least one inflection point. When certain conditions are satisfied, the image capturing optical system can simultaneously satisfy the requirements of miniaturization and high imaging quality. The present disclosure also discloses an image capturing device having the image capturing optical system and an electronic device having the image capturing device.

The invention discloses a triggering system for triggering a gas switch based on a linear photoconductive switch, and aims to solve the problems of instability, short service life, low compactness and the like of an existing triggering system. The device is composed of a high-voltage direct-current source, a charging resistor, a charging isolation inductor, a thyristor, a pulse charging source, a gas switch, a photoconductive switch, a current-limiting resistor, a reverse inductor, a control loop and a load. The pulse charging source comprises an energy storage capacitor, a thyristor, a pulse transformer and a pulse forming line. The control loop is composed of a digital delay generator and a trigger light path. The trigger light path is composed of a laser, a beam expander, an iris diaphragm, a beam splitter and an attenuation piece according to the light path of the pulse laser. The positive electrode end of the photoconductive switch is connected with the high-voltage electrode of the gas switch, bias voltage is directly obtained through coupling of the high-voltage electrode of the gas switch in a capacitive voltage dividing mode, a high-voltage bias power source is omitted, compactness and stability are good, the service life is prolonged, and reliability is improved.

An optical transmitter includes a semiconductor optical amplifier (SOA) configured to receive light and amplify the light to generate amplified light. A backup SOA is also configured to receive light and amplify the light to generate backup amplified light. An SOA input switch selectively routes light toward either the SOA or the backup SOA. An output outputs the amplified light generated by the SOA or the backup SOA. Examples can include multiple lanes, each lane having an SOA, and each backup SOA being usable by one lane or two adjacent lanes.