53results about "Solid state laser constructional details" patented technology

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.

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 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.

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).

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.

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.

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.

The system includes an optical resonator, a mount, and a fastener. The optical resonator is comprised of a material with a horizontal plane symmetry. The optical resonator includes a horizontal plane protrusion for mounting. The horizontal plane protrusion includes discrete resonator rotational orientation positions. The mount comprises mounting legs compatible with the horizontal plane symmetry. The mount includes discrete mount rotational orientation positions that correspond to the discrete resonator rotation orientation positions at a plurality of rotational angles. The fastener secures the horizontal plane protrusion of the optical resonator to the mount.

A laser apparatus according to an aspect of the present disclosure comprises: an oscillator that emits laser light (Lp); an amplifier (30a) that amplifies the laser light (Lp) within a chamber (32) including a pair of discharge electrodes (33a); a front-side optical system (35) and a rear-side optical system (36) that are disposed at positions facing each other across the chamber (32), and constitute a ring resonator including a first light path (P1) and a second light path (P2) that cross between the pair of discharge electrodes (33a); and a first plane-parallel substrate (61, 62) disposed on the first light path (P1) or the second light path (P2). The first light path (P1) is a light path through which the front-side optical system (35) emits the laser light (Lp) incident from the oscillator toward the rear-side optical system (36). The second light path (P2) is a light path through which the rear-side optical system (36) emits the laser light (Lp) incident via the first light path (P1) toward the front-side optical system (35). The first plane-parallel substrate (61, 62) translates the first light path (P1) and the second light path (P2) in directiond in which the first and second light paths approach each other on the chamber (32) side.

A laser ranging system comprising a passively, Q-switched laser that emits a series of output pulses to form an output beam is described. A time interval between successive output pulses in the series of output pulses varies to form a distinctive sequence of output pulses. The laser ranging system further comprises a detector and a processor configured to determine a distance to the target based on a time interval between an emitted output pulse in the series of output pulses and a return reflected signal received by the detector.

The laser device of the present invention includes: a rod-shaped laser medium extending along a first direction; a first light source unit comprising a first base and a plurality of excitation light sources mounted on the first base; a second light source unit disposed parallel to the first light source unit in a second direction intersecting the first direction, comprising a second base and a plurality of excitation light sources mounted on the second base; and a support member supporting the laser medium, the first light source unit, and the second light source unit. At least one of the first base and the support member includes a first defining portion defining the position of the first base relative to the support member, and at least one of the second base and the support member includes a second defining portion defining the position of the second base relative to the support member.

The application discloses a side-pumped passive Q-switched laser, and relates to the technical field of lasers.The application comprises a base, a pumping assembly, a gain medium, a laser oscillation assembly, a heat dissipation assembly and an output mirror, wherein the gain medium, the laser oscillation assembly and the output mirror are detachably installed on the base, the pumping assembly is arranged on the side of the gain medium perpendicular to the optical axis direction, and the heat dissipation assembly is installed on the base.The application is provided with the heat dissipation device, and the components in the heat dissipation bellow are air-cooled, which, in cooperation with the side erbium glass passive Q-switched mode, can effectively improve the laser energy and the beam quality, and can fully dissipate the heat of the components on the optical axis, so that the service life of the components is prolonged while the quality of the output laser is ensured.

The invention discloses an integrated high-power multi-mode pumping beam combiner structure and a communication system, and relates to the technology of fiber laser amplification and pumping beam combiners, and the integrated high-power multi-mode pumping beam combiner structure comprises a first passive optical fiber (101); the first packaging area comprises a gain optical fiber, the gain optical fiber is provided with a first fusion welding point and a second fusion welding point, and an area corresponding to the first fusion welding point is used as an area of a mode field adapter (01); an area within a specified distance of the second fusion welding point is used as an implementation area of the first pump beam combiner (021); the first welding point and the fused biconical taper section of the gain optical fiber are fixed in the first packaging area, and the first passive optical fiber (101), the gain optical fiber, the first multimode optical fiber (201) and the second multimode optical fiber (202) are led out of the first packaging area. According to the invention, the beam combiner is directly manufactured on a gain fiber or a matching passive fiber near a fusion point, the fusion loss and mode field mismatch loss are reduced, and the performance of the beam combiner is improved.

Pumping assembly (PE) intended to emit pump radiation (Rp) suitable for 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 electroluminescent radiation (Ld); a luminescent concentrator (CL) adapted to absorb said electroluminescent 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 about a so-called horizontal plane reduced with respect to an emission angle of the outgoing portion but not reduced about a so-called vertical plane perpendicular to the direction.said optical element (PC) being adapted so that a coupling efficiency of said output portion in the laser medium is maximized, said output beams (FS) of the light-emitting modules forming said pump radiation (RP). [Fig.3A]

The invention relates to an optical module (1) comprising an optical element (3) and a housing (2) surrounding its lateral surface (6). A cavity (10) for a cooling medium for cooling the optical element (3) via its lateral surface (6) is formed between the lateral surface (6) of the optical element (3) and the housing (2). The invention also relates to a laser system (14) comprising such an optical module (1). Furthermore, the invention relates to a method for operating a laser system, a method for generating a plasma of a target material, and a manufacturing method for producing microchips or semiconductor intermediates for producing microchips.

The invention relates to a monolithic solid-state laser (10, 110), comprising a laser resonator (12) including a gain medium (14), a holder (22, 122) supporting the laser resonator, and a pusher (30, 130). The laser resonator comprises a self-supported portion (28b, 128), e.g., a cantilever portion or a bridge portion, and the pusher is arranged for applying a transverse load on the self-supported portion (28b, 128).

The application belongs to the field of solid-state lasers, and particularly relates to a high-power solid-state laser temperature control device, which comprises a shell, support columns fixedly connected to the four corners of the bottom end of the shell, a first connecting plate fixedly connected to the four corners of the top end of the shell, a top cover arranged at the bottom end of the shell, a second connecting plate fixedly connected to the four corners of the outside of the top cover, a screw rod penetrating through the inside of the first connecting plate and the second connecting plate, a bolt in threaded connection with the outside of the bottom end of the screw rod, a working device fixedly connected to the inside of the shell, and a fixing mechanism arranged in the inside of the shell. The fixing mechanism comprises a rotating groove arranged on the side, away from the working device, of the inside of the shell, screw rods rotatably connected to the two ends of the inside of the rotating groove, a rotating block arranged on the outside of the shell, the rotating block penetrating through one screw rod of the shell and being fixedly connected, a moving block in threaded connection with the outside of the screw rod, and a moving plate fixedly connected to the outside of the moving block.

A photonic integrated circuit includes a pumping laser diode that is designed to emit pumping radiation The photonic integrated circuit furthermore includes a gain medium which is suitable for absorbing the pumping radiation and emitting laser radiation and a waveguide which is suitable for feeding the pumping radiation to the gain medium The photonic integrated circuit furthermore includes a first and a second resonator mirror of which one is arranged in a light path between the pumping laser diode and the gain medium and another is arranged on a side of the gain medium which faces away from the pumping laser diode An optical resonator is formed between the first and the second resonator mirror

Described herein are isolated ring cavities that have refractive and heat-generating components physically separated and mechanically held by flexure mounts that are adapted to function in combination with the physically separated structure to moderate the thermal expansion effects of the heat generated by the refractive and other heat-generating elements (e.g., gain element) of the optical cavity. The flexure mounts may be configured as thinned portions of connective elements, reducing the effects of thermal expansion of the baseplate and allowing a thermal isolation from the baseplate. Multiple flexure mounts may be arranged to minimize further the effects of thermal expansion of the baseplate.

The laser device of the present invention comprises: a rod-shaped laser medium extending along a first direction; a first base including a first base having a first cut through which the laser medium passes and a first light source unit having a plurality of excitation light sources mounted on the first base; and a support member supporting the laser medium and the first light source unit. At least one of the first base and the support member includes a first defining portion defining the position of the first base relative to the support member.

Disclosed is a laser device including: a rod-shaped laser medium extending in a first direction; a first light source unit including a first base having a first notch through which the laser medium passes and a plurality of excitation light sources attached to the first base; and a holder supporting the laser medium and the first light source unit. At least one of the first base and the holder includes a first regulating part configured to regulate a position of the first base with respect to the holder.