104results 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.

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 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.

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).

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 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.

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 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.

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).

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.

A device and method for resonant pumping of optical gain medium, comprising an electrical pump, an ultracoherent microlaser, and a plasma microresonator. The ultracoherent microlaser can comprise an orthogonal laser supported by a whispering-gallery disk resonator. The electrical pump can electrically pump plasma to trigger a semiconductor laser with 1centimeter coherence to orthogonally resonantly enhance an ultracoherent laser. For a disk thickness near 1 micron, a factor of 20,000x in resonantly enhancing pump efficiency is achievable. The plasma microresonator can also comprise microbubble cavities, argon plasma, and walls thinner than an optical wavelength.

The electrodeless laser driven light source includes a laser source generating a CW sustain light and a pump laser generating a pump. An optical beam combiner combines the CW sustain light and the pump such that the CW sustain light and the pump propagate collinearly. The Q-switched laser crystal generates pulsed light in response to the pump. The gas-filled valve is configured such that the pulsed light ignites a pulsed plasma in a breakdown region of the gas valve and the sustain light sustains a CW plasma in a CW plasma region of the gas valve, thereby emitting high brightness light from the gas valve, and the gas-filled valve is disposed between an output of the pump laser and a pump input of the Q-switched laser crystal such that the CW plasma absorbs the pump light and extinguishes the pulsed light generated by the Q-switched laser crystal.

Apparatus and methods for producing ultrashort optical pulses (1-110) are described. A high-power, solid-state, passively mode- locked laser (1-110) can be manufactured in a compact module that can be incorporated into a portable instrument for biological or chemical analyses. The pulsed laser may produce sub-100-ps optical pulses at a repetition rate commensurate with electronic data- acquisition rates. The optical pulses may excite samples in reaction chambers of the instrument, and be used to generate a reference clock for operating signal-acquisition and signal-processing electronics of the instrument.

A laser medium unit includes a laser gain medium that is formed in a plate shape, that has a first surface and a second surface, and that generates emission light upon irradiation with excitation light from the first surface; and a light guiding and cooling member connected to the first surface to guide the excitation light toward the first surface and to cool the laser gain medium. The first surface consists of a first region to which the light guiding and cooling member is thermally connected, and a second region other than the first region. An entirety of the second region is thermally isolated from the light guiding and cooling member.

The invention discloses a light path system of a solid laser, which comprises a shell, a main shell, a heat dissipation plate, a light-emitting component, a Q-switching component, a PCB (Printed Circuit Board), a baffle plate, a connecting terminal and a heat dissipation fan, and is characterized in that the shell is provided with a cavity with openings in two sides; the main shell is provided with a containing cavity and a light outlet hole, and the light outlet hole is communicated with the containing cavity; the heat dissipation plate is connected with the main shell so as to cover the accommodating cavity; the light-emitting assembly is located in the containing cavity, the Q-switching assembly is located in the containing cavity, and the Q-switching assembly is used for receiving laser of the light-emitting assembly and emitting the laser from the light-emitting hole after Q-switching treatment; the PCB is fixedly connected with the main shell, and the PCB and the heat dissipation plate are located on the two sides of the main shell respectively; the baffle plate is provided with a through hole, and the connecting terminal passes through the through hole. The heat dissipation fan is connected with the heat dissipation plate, and the heat dissipation fan, the heat dissipation plate, the main shell and the PCB are fixedly arranged in sequence. As the heat dissipation fan, the heat dissipation plate, the main shell, the PCB and the baffle are all located in the cavity, the baffle blocks the opening in one side, the Q-switching assembly carries out Q-switching processing, and the output characteristic of the optical path system is improved.

An intracavity frequency-doubling laser device includes a first mirror and a second mirror defining a resonance cavity, a gain media to produce a first lasing light in response to an external pump beam received from outside the cavity, a nonlinear frequency-doubling optical element to generate a second lasing light in response to the first lasing light, a birefringent waveplate to control phase properties of the first and second lasing lights, and a fused quartz element positioned at the exit of the resonance cavity. The second mirror is formed as a relatively thick film on the fused quartz and is controlled to create an output beam of the second lasing light with great accuracy. The four components within the resonance cavity are positioned back-to-back and held in place using an optical glue (forming a compact, miniaturized laser device).

The utility model provides a distance measuring module, a laser and a laser processing device, the distance measuring module comprises a housing, a circuit board, a thimble and a detection mechanism, the housing is provided with an accommodating cavity, and a first opening and a second opening communicated with the accommodating cavity; the circuit board covers the first opening; the ejector pin penetrates through the second opening in a lifting mode, is partially located in the containing cavity and is provided with a starting position and a triggering position located above the starting position; the detection mechanism is arranged in the containing cavity and comprises a trigger part and an induction part, the trigger part is connected with the ejector pin, and the induction part is arranged on the surface, facing the containing cavity, of the circuit board and electrically connected with the circuit board; when the ejector pin is located at the triggering position, the triggering piece triggers the induction piece. According to the technical scheme, the distance measuring module capable of accurately measuring distance is provided.

The invention relates to a plate assembly (3) for an optically active plate, having a mount (5) and a holder (17), wherein the holder (17) is designed to hold an optically active plate (7) on the mount (5), wherein the mount (5) has an overflow surface (11) which surrounds the optically active plate (7) when the optically active plate (7) is held on the mount (5), and wherein the mount (5) and the holder (17) are designed to hold the optically active plate (7) such that an active surface (9) of the optically active plate (7) is flush with the overflow surface (11) and exposed, wherein the holder (17) is designed to act on a radially outer edge region (19) of the optically active plate (7), and / or wherein the holder (17) comprises a holder surface (21) which is free of interference contours and is flush with the overflow surface (11).

The present application provides a kind of lighting device. According to an embodiment, the lighting device includes: light guide plate with upper surface, lower surface and light entrance surface;First light emitting part configured to radiate light in the first wavelength range;Second light emitting part configured to radiate light in the second wavelength range;And the third light emitting part configured to radiate light in the third wavelength range, the upper surface includes the first surface connected with the light entrance surface, the second surface parallel to the first surface between the first surface and the lower surface in the thickness direction, the third surface parallel to the second surface between the second surface and the lower surface in the thickness direction, and the fourth surface, the first surface, the second surface, the third surface and the fourth surface are arranged in the first direction in this order, the width of the first surface is smaller than the width of the second surface, the width of the second surface is smaller than the width of the third surface, the angle between the light entrance surface and the first surface is acute, the first light emitting part, the second light emitting part and the third light emitting part are opposite to the light entrance surface, and are arranged in the first direction in this order.

A laser array includes a plurality of laser diodes disposed on the surface of an intrinsic substrate and electrically connected to each other. Respective laser diodes on the surface of the intrinsic substrate have different orientations relative to each other. The respective laser diodes are configured to provide coherent light emission in different directions, and the laser array is configured to emit an incoherent output beam comprising the coherent light emission from the respective laser diodes. The output beam may include incoherent light having a non-uniform intensity distribution over the field of view of the laser array. Related devices and fabrication methods are also discussed.