8results about How to "High peak power" patented technology

The invention discloses a non-contact welding method for diamond and quartz glass. The non-contact welding method comprises the steps that a diamond composite sheet and a quartz glass sheet are subjected to ultrasonic cleaning and blow-drying; naturally stacking the quartz glass sheets on the diamond compact to form non-contact assembly; transmitting femtosecond laser, focusing the femtosecond laser on the interface of the quartz glass sheet and the diamond compact, and welding along the outer edge of the quartz glass sheet to form a welding sample; the welding sample is placed in an annealing furnace to be subjected to annealing treatment; carrying out welding strength test on the annealed welding sample to obtain shear strength; in the whole welding process, femtosecond laser welding has extremely high peak power and extremely short energy deposition time, a heat affected zone can be controlled at the micro-nano scale, and generation of thermal stress and cracks is effectively restrained; an efficient and reliable method is provided for micro-nano connection of superhard heterogeneous materials, and high-strength welding of the diamond sheet and the quartz glass sheet under the non-clamping and non-contact conditions is achieved.

The utility model relates to vehicle peak power energy storage technical field, and disclose vehicle peak power energy storage system based on diode isolation and sodium electricity compensation, include: sodium battery, DC-DC converter, monitoring unit, DC bus, D1 diode and D2 diode, sodium battery links with DC-DC converter, DC-DC converter connects monitoring unit, DC-DC converter and sodium battery all are connected with DC bus, D1 diode is located between sodium battery and DC bus, D2 diode is located between DC-DC converter and DC bus, monitoring unit can perceive vehicle power demand change, cooperates DC-DC converter control, makes sodium battery timely access circuit to supplement lithium battery power output gap, satisfies the peak power demand under the vehicle specific scene, diode can realize sodium battery branch and the effective isolation of relevant circuit, guarantees system operation safety, the mixed passage design formed by diode and DC-DC converter realizes the technical effect of no loop current safety.

The application relates to the technical field of laser processing, and particularly provides a laser pulse shaping device, a laser device and a laser pulse shaping method.The device comprises a first connecting piece, a second connecting piece and a light blocking piece; the first connecting piece is configured to connect a pre-amplification device and output first light; the first light comprises first laser pulses and continuous light; the second connecting piece is arranged at intervals from the first connecting piece; the second connecting piece is configured to connect a main amplification device and input second laser pulses to the main amplification device; the pulse width of the second laser pulses is smaller than that of the first laser pulses; the light blocking piece is arranged between the first connecting piece and the second connecting piece; the light blocking piece is provided with a light blocking part, the light blocking piece can rotate at a target frequency and a target time delay relative to the first light, the light blocking part blocks the continuous light and shapes the first laser pulses to obtain the second laser pulses. The application shapes and blocks the continuous light of the laser through the light blocking piece, effectively improves the peak power, and improves the processing quality and efficiency.

Disclosed herein are an electronic device and a method of operating the electronic device, according to various embodiments. The electronic device includes: a communication circuit configured to transmit and / or receive a plurality of packets to an external electronic device; and a processor, wherein the processor may determine whether to operate in a time average specific absorption rate (TAS) mode of the communication circuit upon detecting that an external object is in contact with or in proximity to the electronic device, and increase a latency between at least some packets of the plurality of packets based on a value associated with quality of a signal transmitted by the external electronic device satisfying a specified condition while the communication circuit is operating in the TAS mode, and wherein the processor may be configured to control the communication circuit to increase a strength of a signal that includes a plurality of packets having the increased latency. Various other embodiments are possible.

The application provides a tunable pulse train laser and a design method thereof, the laser comprising a pumping light fiber coupling focusing system, a cavity mirror, a laser crystal, a passive Q-switching crystal, an active Q-switching system and a laser output mirror arranged in sequence according to an optical path; the tunable pulse train laser is configured to: in a working state, through the equivalent length control of the passive Q-switching crystal and the modulation control of the active Q-switching system, the number of pulse trains is controlled under the same main frequency, or the same pulse train is output under different main frequencies. The application uses the active Q-switching system and the passive Q-switching crystal in cooperation, uses the active Q-switching and the passive Q-switching in combination to obtain the output of the main frequency plus the pulse train, is favorable for the multiple processing at the same point in the fine machining, and the single pulse energy is constant, thereby providing a pulse train laser scheme which is lower in cost, more ingenious and simple in structure, good in regulation flexibility, and higher in stability and reliability of the laser.

This invention discloses a peak power control method and related apparatus based on ultrashort, ultra-intense lasers. The method includes: constructing an electron spectrum separation system to obtain the spatial distribution of the electron spectrum; controlling the gas density gradient in real time; adjusting the gas electron density using different parameters according to the spatial distribution of the electron spectrum; establishing a quantitative mapping model of back pressure-electron density-microwave intensity; adjusting different target structures to obtain the control law of the target structure on the electron return path; and obtaining a microwave parameter control strategy by comprehensively considering the synergistic effect of gas type, back pressure gradient, and target structure to control the peak power. This invention, by controlling key parameters such as gas type and pressure gradient, combined with microwave time-frequency diagnostics and synchronous measurement of the electron spectrum, reveals the electron return dynamics of microwave radiation sources, filling the technological gap in high power and spectral flexibility of traditional technologies, and laying the foundation for the development of novel controllable microwave radiation sources.

The invention relates to the technical field of solid lasers, and discloses an orthogonal polarization output cavity dumping laser based on a corner cube prism. The laser comprises a pump source, a first polarizer, a second polarizer, a Ho:YLF crystal, an RTP crystal, a third polarizer, a first half-wave plate, a first corner cube prism, a first right-angle prism, a second corner cube prism, a second right-angle prism and a second half-wave plate; two corner cube prisms and two right-angle prisms constitute a ring resonant cavity, the two corner cube prisms are arranged in the same manner, linear polarized light with a special polarization azimuth passes through the two corner cube prisms in four different reflection orders respectively, so as to achieve a polarization-maintaining effect, and cavity dumping laser output can be achieved by coordinating with the voltage rise and fall time of the RTP crystal, and the two polarizers are respectively used as output mirrors of vertical polarized light and horizontal polarized light, so as to obtain orthogonal polarization synchronous output pulse laser with high peak power, large energy and high stability.

The application belongs to the technical field of laser drilling, and provides a 5G ceramic medium filter femtosecond laser drilling device and method, which comprises a femtosecond laser, and a pulse energy adjusting and controlling system, a laser pulse shaping system and a laser rotary drilling system arranged on the light beam path of the femtosecond laser. The femtosecond laser is used as a drilling light beam, has the advantages of high peak power, short action time, low material processing threshold and micron-level focused light spot, etc., can avoid the melting of the 5G ceramic medium filter material, instantaneously change the material on the 5G ceramic medium filter into plasma and emit it away, realize drilling in a very short time when heat has no time to transfer between electrons and lattices in the 5G ceramic medium filter material, and avoid the generation of thermal effects.