32results about How to "High laser output" patented technology

The invention relates to a truss foldable sealing kilowatt CO2 laser, wherein two sides of two trusses both have six quartz discharge tubes connected via mirrors, while first end is output window, another end is mounted with resonance chamber mirror; the fifth quartz of first side has discharge end connected to the discharge end of sixth quartz via mirror, while the discharge end of fifth quartz at another side is connected to discharge tube of sixth quartz via mirror; another ends of two quartz discharge tubes are connected via mirror; therefore, it can form truss solid foldable structure formed by twelve quartz discharge tubes, while the angle between two nearby quartz discharge tubes is 9-12degree; one end of gas storage tube is through to the first end of first quartz discharge tube, while its last end is mounted with gate. The invention has high stability and compact structure, to obtain high power.

The invention provides a space-borne high-energy dual-wavelength all-solid-state pulsed laser, which includes an active Q-switched oscillator, a pre-power amplifier, a main power amplifier, and a frequency doubling module in sequence. The active Q-switched oscillator is a U-shaped resonant cavity, including a first Paul prism, first optical wedge, first wave plate, slab crystal, first polarizing beam splitter, second polarizing beam splitting prism, electro-optic Q switch, second wave plate, second optical wedge, second Paul prism and set in The pumping diode array on the slab crystal, the pre-power amplifier and the main power amplifier all include beam shaping mirror groups. The invention can realize pulsed laser output with high energy, high stability and high reliability, reduce the volume and weight of the laser, and is suitable for multi-platform applications, especially space-borne platforms, which can be used as space-borne aerosol detection lidar and space-borne ranging LiDAR and other detection light sources.

The invention discloses a double-cavity excimer laser device complete-device frame system. A double-cavity excimer laser device comprises a main oscillation discharging cavity, a power amplification cavity and an optical system relevant to the two cavities. The double-cavity excimer laser device complete-device frame system comprises an installation base (1), a foundational frame (2), an optical system frame (3) and a discharging cavity frame (4), wherein the installation base (1) is a base of the complete-device frame system and used for bearing all components of the complete-device frame system, the foundational frame (2) is directly and fixedly installed on the installation base (1), the optical system frame (3) is used for installation of the optical system and separated from the discharging cavity frame (4), and the discharging cavity frame (4) is installed on the installation base (1) and used for bearing the main oscillation discharging cavity and the power amplification cavity. The double-cavity excimer laser device complete-device frame system can reduce influences of the discharging cavity on the optical system.

The invention discloses a gas discharge laser light source, belongs to the technical field of gas laser, and solves the technical problem that in the existing high-voltage pulse power supply, external conditions limit the development requirements of larger energy and higher repetition frequency in a laser light source system. The gas discharge laser light source system comprises a discharge cavity, a light condensation module and a line-width reduction module, wherein the discharge cavity comprises an inner ring and an outer ring; the outer ring is fixed and provided with a plurality of high-voltage power supplies and electrodes; each high-voltage power supply corresponds to each electrode mounted on the outer ring; the inner ring is drive by a motor to rotate; a plurality of electrodes are mounted on the inner ring; the electrodes mounted on the inner ring and the electrodes mounted on the outer ring form positive and negative electrodes. As the number and the positions of the high-voltage power supplies of the outer ring of the discharge cavity and the electrodes, the number and the positions of the electrodes of the inner ring in the discharge cavity, the inner ring rotating speed and high-voltage power supply discharge time sequence of the outer ring of the discharge cavity are changed, the laser output with larger energy and higher repetition frequency becomes possible.

The invention provides a multi-degree-of-freedom optical mirror frame for optical path adjustment, which includes pitch and yaw devices, up and down moving devices, left and right moving devices and forward and backward moving devices. The adjusting mirror frame provided by the present invention has the characteristic of modularization, and its key structure can be intercepted to produce an adjusting mirror frame suitable for a reflecting mirror or a transmitting mirror. Overcoming the shortcomings of the manual optical adjustment frame provided by the traditional technology, the reset mechanism is improved, and the reset spring is no longer used but the screw is fixed. After the optical path adjustment is completed, the moving plate and the fixed plate of the main part of the frame are connected by screws. Together, this increases the long-term stability of the frame for engineered applications of the laser. The solution is low in cost and easy to implement. The adjustment mirror frame can be used to debug and maintain the laser light path, quickly and conveniently collimate the laser, and obtain high-precision laser output.

The invention discloses a direct liquid-cooled high-power laser gain device for a fuel injection pump, and relates to the technical field of high-energy lasers. The gain device includes: a gain medium for obtaining laser gain, an inner frame of the device, a laser cooling liquid, a cooling liquid inlet, a cooling liquid outlet, a device outer frame, a fuel nozzle and an ignition plug for injecting fuel and realizing combustion, and a high-speed airflow inlet , Exhaust gas outlet, combustion chamber for fuel combustion. Compared with the prior art, the present invention focuses on the separate design of the inner and outer frames of the device. At the same time, the controllable combustion of fuel in the open combustion chamber can be realized by designing the appropriate injection volume, injection angle, and ignition time, ensuring the uniformity of optical pumping. sex and intensity. On the other hand, the present invention uses direct liquid cooling to cool the laser gain medium to ensure effective thermal management, not only can achieve continuous high-power laser output, but also has good output laser beam quality, and at the same time, the device is compact and small, meeting various requirements. Application scenarios.

The invention discloses a gain device and a laser based on a micro-nano-structure semiconductor thin film. The micro-nano-structure semiconductor thin film includes a window layer (223), a microstructure layer (221) and a multi-quantum well layer (222) from top to bottom; The multi-quantum well layer (222) includes at least two barrier layers, and a well layer is included between different barrier layers; the barrier layer and the well layer are respectively prepared from different semiconductor materials; the gain device It includes a prism window (21) and the semiconductor film (22) with micro-nano structure; the laser includes at least one active mirror (2), and the active mirror (2) includes the gain device, a substrate (23), a heat sink ( 24) and focusing lens (25). The laser provided by the invention can realize output with high efficiency and high beam quality under high power conditions.

The invention relates to an all fiber Q-switch, which comprises a fiber, a V-shaped groove, a long-period grating pressed template, piezoelectric ceramics, a semiconductor chilling plate, a thermistor and a metal shell, wherein the fiber passes through the metal shell, and one section of the fiber is a bare fiber; the long-period grating pressed template, the bare fiber and the V-shaped groove are arranged from top to bottom in the metal shell to form a sandwich-like structure; optical cement is coated on the outer surface of the bare fiber; the piezoelectric ceramics is arranged between the inner top of the metal shell and the long-period grating pressed template; the semiconductor chilling plate closely attaches to the outer bottom of the metal shell; and the lateral surface of the V-shaped groove is closely provided with the thermistor for inducing the temperature of the V-shaped groove. The all fiber Q-switch has the characteristic of zero insertion loss. When the all fiber Q-switch is applied to a Q-switched fiber laser, the all fiber Q-switch can improve the output power and efficiency of the laser under the same conditions.

The invention discloses a surface emitting laser and an image forming device. The surface emitting laser oscillating at a wavelength Lambda comprises an upper reflector, a lower reflector, an active layer and a spacer layer. The spacer layer has a laminated structure comprising a first semiconductor sublayer with a composition of Al<x>Ga<1-x>As (x is more than 0 and equal to or less than 1) and asecond semiconductor sublayer with a composition of Al<y>Ga<1-y>As (y is more than 0 and less than 1, and x is more than y).

A polygonal crystal for a solid laser comprises a laser crystal 1 and bonded crystals 2 located at both ends of the laser crystal 1, wherein the laser crystal 1 and the bonded crystals 2 have regularly pentagonal cross sections; the laser crystal 1 uses one of a neodymium-doped yttrium lithium fluoride crystal, a thulium-doped yttrium lithium fluoride crystal, a thulium-holmium-codoped yttrium lithium fluoride crystal, and a holmium-doped yttrium lithium fluoride crystal; the bonded crystals 2 are yttrium lithium fluoride crystals. The polygonal crystal and an all-solid-state laser of the invention use the regularly pentagonal laser crystal and the bonded crystals made of the yttrium lithium fluoride material, suppress the generation of self-oscillation in the crystal to the utmost extentby using side pumping, and realize high-energy high-efficiency laser output.

Characters of structure of the whole solid laser in 455nm pulse includes parts along light forwarding direction: pulse adjusted Q laser, frequency-doubling crystal, system for shaping and coupling pump light beam, laser cavity of titanium gem, frequency-doubling crystal for titanium gem laser. Seed laser outputted from seed laser injection system of outer cavity injects to resonant cavity of titanium gem laser. Through frequency-doubling crystal, output of the 532nm laser is obtained from 1064nm laser outputted from pulse adjusted Q laser. Through system for shaping and coupling pump light beam, the 532nm laser enters to the resonant cavity of titanium gem laser. Seed laser injection system controls line width of laser outputted from titanium gem laser. Through frequency-doubling crystal, output of 455nm pulse laser is obtained from 910nm laser of titanium gem laser system. Features are: compact structure, small size, high efficiency, long service life and stable operation.

The invention provides an astigmatism self-compensation solid laser, which comprises a pump source, a resonant cavity and a gain medium, wherein the gain medium has thermal lens astigmatism; the resonant cavity is an astigmatic cavity; and the gain medium is arranged in the resonant cavity in a way that the direction, with relatively poorer thermal effects, of the gain medium is in the meridian plane of the resonant cavity and the direction with relatively better thermal effects is in the sagittal plane of the resonant cavity. The solid laser can be obtained by compensating the astigmatism ofthe resonant cavity and the thermal lens astigmatism without inserting an additional astigmatism compensation element, and is high in output power, conversion efficiency, beam quality and stability, simple, convenient and reliable.

The invention discloses an anti-return light all-fiber device, which comprises an energy transmission fiber, a cladding light filter and a beam splitting fiber, the cladding light filter is prepared on the energy transmission fiber, and the beam splitting The optical fiber is coupled on the cladding of the energy-transmitting optical fiber; along the output laser direction of the energy-transmitting optical fiber, the cladding optical filter and the splitting optical fiber are arranged in sequence; the splitting optical fiber is used to guide the energy-transmitting optical fiber Acting on the target object, the return light reflected by the target object; the cladding optical filter filters the return light by destroying the beam full emission condition of the cladding of the energy-transmitting optical fiber. Introduce the splitting fiber and cladding filter into the energy-transmitting fiber output by the laser, use the splitting fiber to guide most of the return light power out, and combine the cladding light filter to do further return light stripping, the cladding The light filtering device further effectively filters the unexported return light, so that the optical fiber device of the present invention has the ability to resist high-power return light.