146results about "Solid state laser constructional details" patented technology

Heterogeneous photonic circuits comprise a gain section optically coupled to a photonics section. The gain section can include at least one gain waveguide which can be formed from a III-V semiconductor material to provide optical gain. The gain waveguide can be coupled to optical components in the photonics section to form an integrated pump module. The photonics section can include a light-generating photonic circuit, which can comprise at least one waveguide doped with a rare-earth ion or transition-metal ion. Output from the integrated pump module and / or the light-generating photonic circuit can be tunable. Tuning can be implemented with feedback control.

A light emitting device is provided including a wavelength conversion structure configured to convert electromagnetic radiation of a first wavelength in to an electromagnetic radiation of a second wavelength; a plurality of light sources, wherein at least one light source is configured to emit an electromagnetic radiation of the first wavelength, wherein the plurality of light sources are arranged on or above the wavelength conversion structure; and an optical metastructure configured as optical cavity comprising a resonance frequency at about the second wavelength.

The invention discloses a green laser assembly, an optical module and application of the green laser assembly in photovoltaic assembly processing, a shell is provided with a first fixed reflector coated with a reflecting film for reflecting 1064nm, a first acousto-optic Q switch and a second acousto-optic Q switch are orthogonally arranged, an Nd: YAG laser uses an Nd: YAG crystal rod with the diameter of 6mm and the length of 166mm, and a second fixed reflector coated with a reflecting film for reflecting 1064nm is arranged on the Nd: YAG crystal rod. The first dichroscope transmits 1064nm and reflects 532nm to improve the conversion efficiency of frequency multiplication, the LBO crystal 16 is placed close to the second dichroscope to improve the power density and the conversion efficiency, and the second dichroscope reflects 1064nm and transmits 532nm. And the light with the wavelength of 532nm transmitted by the second dichroscope is coupled into an input end optical fiber of the optical fiber beam splitter after passing through the optical isolator and the first lens. The short-wavelength green laser is adopted, the photovoltaic welding strip is mainly composed of the copper base material and the tin alloy, the green laser absorptivity is far larger than the near-infrared wavelength (about 1 micron) absorptivity, and the laser absorptivity of the welding strip is remarkably improved.

A mount for a measuring device, for example a laser level, includes a first mounting member having a first mounting surface that defines a first plane and includes at least one first magnet, a second mounting member having a second mounting surface that includes at least one second magnet, and a measuring device support configured to support the measuring device. The second mounting member has a first position at which the second mounting member extends on an opposite side of the first plane from the measuring device support and the first and second mounting surfaces are substantially perpendicular to one another.

A passively, Q-switched laser is described. The laser may operate at an eye-safe lasing wavelength of 1.34 microns and use a gain element of Nd:YVO4 and a saturable absorber element of V:YAG with a space separating the gain element and saturable absorber element. The Q-switched laser is pumped by a grating stabilized laser diode. The laser may be used in laser ranging applications.

A multi-cavity system for intracavity laser pumping, comprising a first laser cavity. The first laser cavity may comprise a first gain chip, configured to generate a first laser beam, and a first end mirror disposed optically in line with the first gain chip, configured to reflect the first laser beam back to the first gain chip. The first laser cavity may further comprise a second gain chip disposed optically in line with the first gain chip. The first laser beam may be configured to excite the second gain chip. The second gain chip may be configured to generate a second laser beam upon excitation by the first laser beam. The system may further comprise a second laser cavity at least partially intersecting with the first laser cavity. The second laser beam may be configured to be directed through the second laser cavity.

The invention discloses a mid-infrared nonlinear crystal, a mid-infrared laser and a preparation method of the mid-infrared nonlinear crystal, a slice crystal is adopted, an included angle theta is formed between an optical axis Z axis of the slice crystal and the surface, the slice crystal is polarized into a periodic polarization structure with the period of lambda through a room temperature electric field polarization technology, and a large surface forms an optical plane through polishing. The problem of how to reduce the thermal lens effect of the intermediate infrared nonlinear crystal is solved, and the damage threshold of the intermediate infrared nonlinear crystal can be improved, so that the laser output power is improved.

The invention discloses a multi-layer dissimilar material thermal bonding method based on SiO2 thin film interlayer assistance. The method comprises the steps that S1, cutting and annealing destressing treatment are conducted on an Nd: YAG substrate and a cooling fin which need to be bonded; s2, finely regulating and controlling the surface shape and the roughness of the crystal bonding surface of the processed Nd: YAG substrate and the radiating fin to ensure that the bonding surface is flat and smooth; s3, the Nd: YAG substrate and the cooling fin which are subjected to grinding and polishing are cleaned; s4, the two sides of the cleaned Nd: YAG substrate are plated with SiO2 thin films; s5, gently attaching the coated Nd: YAG substrate and the cooling fin at room temperature by using Van der Waals force to complete primary optical cement; and S6, carrying out heat treatment on the Nd: YAG substrate and the cooling fin which are subjected to primary optical cement to obtain the multi-layer dissimilar material thermal bonding gain medium. According to the method, bonding is assisted through the SiO2 thin film intermediate layer, and the bonding stress caused by mismatching of thermal expansion coefficients during thermal bonding of multiple layers of dissimilar materials can be eliminated.

In a substrate (1) for holding a plurality of components (6.1, 6.2, 6.3, 6.4, 6.5, 6.6) of an optical laser cavity, where the substrate (1) comprises a plurality of slots (2.1, 2.2, 2.3, 2.4, 2.5, 2.6), where each slot (2.1, 2.2, 2.3, 2.4, 2.5, 2.6) is configured to receive one of the components (6.1, 6.2, 6.3, 6.4, 6.5, 6.6), the substrate (1) comprises a micro-positioning system (4) configured to enable micro-positioning of the component (6.1) after at least one of the components (6.1) is received in its corresponding slot (2.1).

The invention relates to the technical field of optical fiber lasers, and provides a self-cooling optical fiber laser which comprises an optical fiber laser body, a wire is installed at the output end of the optical fiber laser body, one end of the wire is fixedly connected with a transmitting end, and the outer wall of the optical fiber laser body is fixedly connected with an assembling mechanism. The assembling mechanism comprises a U-shaped positioning frame fixedly installed on the outer wall of the optical fiber laser body, the bottom of the U-shaped positioning frame is fixedly connected with a clamping plate, the outer wall of the U-shaped positioning frame is fixedly connected with a lantern ring, and the interior of the lantern ring is movably connected with a positioning bolt. According to the invention, by moving the optical fiber laser main body, the clamping plate is driven to be butted and clamped into the clamping groove formed in the substrate, at the moment, the U-shaped positioning frame and the substrate are butted, the positioning bolt penetrates through the lantern ring and is butted to the upper part of the threaded hole, and the positioning bolt is rotated, so that the effect of conveniently and stably assembling and connecting the optical fiber laser main body and the substrate is achieved.

A heat sink assembly may include a first cooling stack. The first cooling stack may include a silver-diamond composite material. The heat sink assembly may include a second cooling stack. The second cooling stack may include the silver-diamond composite material. The heat sink assembly may include a crystal rod. The crystal rod may be an ytterbium-doped, yttrium-aluminum-garnet laser medium. The crystal rod may be at least partially sandwiched by the first cooling stack and the second cooling stack.

The utility model provides a laser and a laser device, the laser comprises a housing, a laser module and an air tap module, and an accommodating cavity is formed in the housing; at least part of the laser module is arranged in the accommodating cavity, and the laser module is provided with a light outlet; the air nozzle module is arranged on the lower side of the laser module and is provided with an air guide channel, a flow guide cavity and an outlet, the flow guide cavity is communicated with the air guide channel, the air guide channel can guide airflow output by an air source to the flow guide cavity, the airflow is blown out from the outlet after passing through the flow guide cavity, and the air nozzle module is arranged on the lower side of the laser module. A light outlet of the laser module is located in the flow guide cavity, and the outlet coincides with the center line of the light outlet. According to the technical scheme, the influence of dust and other impurities on the laser machining process can be effectively reduced, and interference of the air pipe on the laser device is reduced.

The present invention discloses a laser amplifier based on wavefront aberration correction, which relates to the technical field of lasers. It includes a laser source, a gain medium, a wavefront sensor, an adaptive optical wavefront correction module, and a feedback control system. The laser source is connected to the gain medium through a first optical coupler. The laser beam amplified by the gain medium is output through a second optical coupler. The wavefront sensor is connected to the output end of the gain medium. The feedback control system is connected to the wavefront sensor and the adaptive optical wavefront correction module through a data bus, and automatically generates a correction signal according to the wavefront aberration data. By installing the feedback control system, the present invention realizes the function of real-time adjusting correction parameters based on wavefront aberration, solves the problem that traditional laser amplifiers are difficult to monitor and correct wavefront aberration caused by optical system errors or environmental disturbances in real time, improves the focusing performance and transmission efficiency of the laser beam, and maintains stable and high-quality beam output.

The present invention discloses a laser optical fiber anti-breakage device, comprising a laser, a timer is provided on the top right side of the front face of the laser, an access socket is fixedly connected to the top left side of the front face of the laser, a protective mechanism is provided in the access socket, an access optical fiber is provided in the middle of the protective mechanism, a buffer mechanism 1, a maintenance mechanism and a buffer mechanism 2 are provided in the protective mechanism, and the protective mechanism comprises a threaded access cylinder, a protective shell 1, a protective shell 2, a protective cover and a protective rubber tube; the present invention, by setting a timer, when the time set by the timer is reached, the telescopic rod is controlled to work, so that the movable piston disk in the oil outlet is moved, and the lubricating oil inside the oil outlet can be pushed to flow to the oil coating roller through the bottom of the oil outlet, and when the access optical fiber is pulled, the lubricating oil is applied by rolling with the oil coating roller, so that the friction of the contact surface of the access optical fiber can be reduced, thereby preventing the outer surface from cracking during pulling.

The application provides a laser crystal numerical control water-cooling rotating mechanism, which comprises a box body, a transmission mechanism fixedly installed in the inside of the box body, a numerical control driving device fixedly installed on the outside of the box body and having an output shaft clamped in the inside of the transmission mechanism, and supporting legs arranged at the bottoms of the two sides of the box body, the inside of one side of the box body is respectively communicated with a liquid inlet and a liquid outlet, and the outside of the box body away from the numerical control driving device is fixedly installed with two symmetrically distributed outlet sealing covers, the inside of each outlet sealing cover movably sheaths two end covers which are fixedly sheathed in the inside of the transmission mechanism and symmetrically distributed. The laser crystal numerical control water-cooling rotating mechanism is used in cooperation with the first gear, the second gear and the gear shaft, so that the water-cooling rotating mechanism can drive the crystal to rotate under the driving of the numerical control driving device, the crystal different parts can emit laser in turn, the heat of the crystal can be forcedly taken away by the cooling liquid around the crystal, the crystal is fully cooled in time and space, and the problem of the damage of the laser crystal due to heating is solved.

Fluctuations in optical output are positively suppressed in a laser apparatus that adjusts the temperature of a housing that contains constituent components of a laser to be a predetermined temperature. Constituent components of a laser that include a resonator constituted by the back end surface of a laser diode and a resonator mirror are contained within a housing. The housing is bonded to a Peltier element via an adhesive layer. The Peltier element is driven based on detected temperatures within the housing to adjust the housing to be of a predetermined temperature. An adhesive layer in which a plurality of substantially uniformly shaped spacers that regulate the distance between the housing and the Peltier element are dispersed is employed as the adhesive layer.

A laser device according to various embodiments includes: a housing; an inlet valve disposed in a first direction of the housing and configured to flow cooling water; an outlet valve disposed in a second direction of the housing and configured to discharge cooling water; a laser output unit which is accommodated in the housing and is configured so as to apply a power supply to output a laser beam; and a cooling structure for cooling the laser output unit, the cooling structure may include: a support member for accommodating the laser output unit therein; and a flow path that is formed on the surface of the support member so as to face the inside direction of the support member and that provides a path through which the cooling water flows. According to the utility model, by using the supporting component with the micro-channel, not only can the laser active medium be directly cooled by using cooling water, but also the vibration caused by the flow velocity is inhibited by using the micro-channel.

The application discloses a kind of semiconductor pumping solid optical fiber lasers, it is related to optical fiber laser technical field;It improves to check whether the aging damage of optical fiber is removed laser, more troublesome complex, the impact and vibration generated by outside possibly lead to the damage of internal element of optical fiber laser problem, and the present application includes first shell and the second shell being arranged in first shell side, the first shell is connected with second shell by dismounting mechanism, the inside of the first shell is provided with first installation bucket, the side of the first installation bucket is provided with second installation bucket;The present application is provided with first shell and second shell, so that first shell and second shell can be separated from each other, whether the doped optical fiber inside the transparent connecting ring is aging damaged or not is observed through the gap between first shell and second shell, without dismounting the doped optical fiber for observation, simple and convenient operation, save a certain amount of labor.

The invention discloses a variable light spot lens structure and laser equipment. The variable light spot lens structure comprises a fixing module (10) and a plurality of replacement modules (20), the fixing module (10) comprises a fixing base (11), a light source (12) arranged in the fixing base (11), a fast axis compression mirror arranged on the light emitting side of the light source (12), and a compression unit (13) fixed to the fixing base (11) and located on the light emitting side of the fast axis compression mirror. The multiple replacement modules (20) are arranged on the light emitting side of the fixing module (10) in a replacement mode, and each replacement module (20) comprises an optical head (21) and a shaping unit. The optical head (21) of each replacement module (20) can be detachably connected with the fixing seat (11) of the fixing module (10); light beams emitted by the light source (12) are subjected to fast axis compression of the fast axis compression mirror and compression of the compression unit (13), then enter the replacement module (20), are shaped by a shaping unit of the replacement module (20) and then are emitted; and the sizes of light spots obtained by the light beams emitted by any two replacement modules (20) on the receiving surface are different. The variable light spot lens structure can output various small-size light spots of different specifications, and the application flexibility of the laser module is improved.

The present invention provides a Q-switch structure including a solid-state laser medium and a magneto-optical material. The solid-state laser medium and the magneto-optical material are joined and integrated, a first anti-reflecting film for adhesive is formed on a surface of the solid-state laser medium, and a second anti-reflecting film for adhesive is formed on a surface of the magneto-optical material. The first anti-reflecting film for adhesive on the solid-state laser medium and the second anti-reflecting film for adhesive on the magneto-optical material are bonded via a translucent material having a transparency at a laser oscillation wavelength of laser oscillated from the solid-state laser medium. This provides the Q-switch that contributes to the miniaturization of a laser apparatus and has high beam quality.

The invention relates to a laser amplifier head comprising plates of a laser active medium which are placed inside a housing which has an inlet port and an outlet port, as well as a window that allows a laser beam to pass through the plates, characterized in that it comprises: a cooling means comprising: o a cooling circuit connected to the housing and suited to the circulation of a cooling liquid; o a cooling duct, inside the housing, in contact with the active medium, through which the cooling liquid flows, allowing an exchange of heat between the latter and the plates, o a regulating means able to regulate a temperature of the cooling liquid such that a thermo-optical coefficient dn / dT of the cooling liquid satisfies the following condition: (I) where AT represents the difference in temperature between the cooling liquid and the plates of the active medium, ∑φH represents the sum of the hydraulic diameters of the cooling duct, and λ0 represents the wavelength of the beam in a vacuum.

A transmission unit of a wireless optical charging system with an adjustable output direction attached to a ceiling of an indoor space according to the present disclosure includes: an optical generation unit that generates laser light; a vertical axis rotation unit that rotates along an axis perpendicular to a floor of the indoor space and transmits the laser light; a horizontal axis rotation unit that rotates while attached to the vertical axis rotation unit, is attached to a plurality of cameras, outputs the transmitted laser light, and rotates an output direction of the laser light and a direction of the plurality of cameras along an axis horizontal to the floor of the indoor space; and a control unit that controls the vertical axis rotation unit and the horizontal axis rotation unit according to rotation angles in vertical and horizontal directions calculated using images captured by the plurality of cameras.

The application belongs to the field of high-power solid-state lasers, and particularly relates to a linkage locking sheet-shaped amplifier sealing bottom plate structure convenient to disassemble and assemble. The structure comprises a bottom plate, a driving sliding block mechanism, a pi-shaped sliding frame, a sliding linkage mechanism and a positioning locking mechanism. Through linear movement of the driving sliding block mechanism, the pi-shaped sliding frame is driven to slide, and the locking rods of multiple positioning locking mechanisms are synchronously controlled through the sliding linkage mechanism, so that quick locking and unlocking operations of the sealing bottom plate are realized. The pre-tightening spring in the positioning locking mechanism provides automatic tension, ensuring firm locking effect. The linkage locking mechanism is used to replace the screw fixing mode in the prior art, and only simple sliding operation is needed to quickly complete installation and disassembly of the sealing bottom plate, greatly simplifying the operation process, reducing the maintenance difficulty and effectively improving the work efficiency.

A transmission unit of a wireless optical charging system with an adjustable output direction attached to a ceiling of an indoor space according to the present disclosure includes: an optical generation unit that generates laser light; a vertical axis rotation unit that rotates along an axis perpendicular to a floor of the indoor space and transmits the laser light; a horizontal axis rotation unit that rotates while attached to the vertical axis rotation unit, is attached to a plurality of cameras, outputs the transmitted laser light, and rotates an output direction of the laser light and a direction of the plurality of cameras along an axis horizontal to the floor of the indoor space; and a control unit that controls the vertical axis rotation unit and the horizontal axis rotation unit according to rotation angles in vertical and horizontal directions calculated using images captured by the plurality of cameras.

The invention relates to a pressure chamber (1) with a main flow chamber (5) arranged in the pressure chamber (1) for a media flow, wherein the main flow chamber (5) has a flow chamber inlet section (7) and a flow chamber outlet section (9), wherein the pressure chamber (1) is configured for at least an inlet pressure of the media flow in the flow chamber inlet section (7) of more than 1 bar absolute, wherein the pressure chamber (1) has at least one through-flow arrangement (3) which has a wall (11) with a wall recess (13), wherein a first transparency element (15.1) and a second transparency element (15.2) are arranged in the wall recess (13), wherein a flow channel (17) is formed in the wall (11) which is located between the first transparency element (15.1) and the second transparency element (15.2).1) has a through channel section (19) and in the wall (11) an inflow channel section (21) and an outflow channel section (23) opposite the inflow channel section (21) along the through channel section (19).

An optical system 1 comprises a gain medium 3, a pump mechanism 4 and first and second beams having the same wavelength, taking different paths A, B through the gain medium 3. Beam paths A, B are neit

A variable spot lens structure and a laser device. The variable spot lens structure comprises a fixed module (10) and a plurality of replacement modules (20). The fixed module (10) comprises a fixed base (11), a light source (12) disposed inside the fixed base (11), a fast-axis collimator disposed on a light-emitting side of the light source (12), and a compression unit (13) fixed on the fixed base (11) and located on a light-emitting side of the fast-axis collimator. The plurality of replacement modules (20) are interchangeably disposed on a light-emitting side of the fixed module (10), and each replacement module (20) comprises an optical head (21) and a shaping unit. The optical head (21) of each replacement module (20) is detachably connectable to the fixed base (11) of the fixed module (10). A light beam emitted from the light source (12) is incident on the replacement module (20) after fast-axis compression by the fast-axis collimator and compression by the compression unit (13), and is emitted after being shaped by the shaping unit of the replacement module (20). Spot sizes of light beams emitted through any two different replacement modules (20) on a receiving surface are different. Such a variable spot lens structure can output multiple specifications of small-sized spots, improving the application flexibility of laser modules.

Pumping assembly (EP) intended to emit pump radiation (Rp) capable of pumping a laser medium (ML), said pumping assembly comprising a plurality of light-emitting modules (ME) stacked at least in one direction, each light-emitting module comprising: a plurality of light-emitting diodes (LEDs) configured to emit light-emitting radiation (Ld), a luminescent concentrator (CL) adapted to absorb said light-emitting radiation (Ld), the concentrator having an emitting face (SE) such that an outgoing portion (Ls) of said luminescent radiation can pass through the emitting face (SE), a non-imaging optical element (PC) adapted to collect the outgoing portion and then form an output beam (Fs) having an emission angle along a so-called horizontal plane () reduced relative to an emission angle of the outgoing portion but not reduced along a so-called vertical plane () perpendicular to direction,said optical element (PC) being adapted so that a coupling efficiency of said outgoing portion in the laser medium is maximum, said output beams (FS) of the light emission modules forming said pump radiation (RP). [Fig.3A],

This application relates to an intracavity frequency-doubled yellow laser device. An intracavity frequency-doubled laser device includes: a first and second mirror defining a resonant cavity; a gain medium for generating a first laser beam in response to an external pump beam received from outside the cavity; a nonlinear frequency-doubled optical element for generating a second laser beam in response to the first laser beam; a birefringent waveplate for controlling the phase properties of the first and second laser beams; and a fused silica element located at the exit of the resonant cavity. The second mirror is formed as a relatively thick film on the fused silica and is controlled to generate the output beam of the second laser beam with high precision. The four components within the resonant cavity are positioned back-to-back and fixed in place using optical adhesive (forming a compact, miniaturized laser device).

An optical amplifier system comprising a gain medium and a pump mechanism configured to amplify first and second optical beams as they pass through the gain medium. The optical amplifier system is arranged such that the first and second beams having the same wavelength take different paths through the gain medium, whereby the beams are neither parallel nor coaxial when they exit and / or enter through the first side of the gain medium. The system comprises a prism having a facet positioned on the first side of the gain medium in the path of both beams. The facet is oriented such that it causes total internal reflection of one of these beams within the prism, but is transmissive with respect to the other. In this way, the paths of the two beams can be altered relative to each other, enabling the beams to be brought closer together or separated from each other. The present invention relates in particular to a multipass amplifier resulting from guiding the first and second beams to pass through the gain medium a plurality of times as a single beam.