Novel high-repetition-frequency short-pulse LD laser and operation process thereof

Abstract

The invention provides a novel high-repetition-frequency short-pulse LD laser and an operation process thereof. The laser comprises the components of a positive high-voltage power supply, a negative high-voltage power supply, two pulse signals, two high-speed analog switches which are controlled by the two pulse signals, two clamping diodes, two energy storage elements, two decoupling capacitors, two charging current-limiting resistors, a discharging current-limiting resistor and a laser diode, wherein the voltage of the positive high-voltage power supply is equal with that of the negative high-voltage power supply. The operation process is characterized in that supposing the frequencies of the control signals are f, and the phase difference between the two signals is pi, the two energy storage elements alternatively discharge in a manner that the discharging interval is T / 2 under the function of the control signals, so that the laser diode transmits the laser pulse with frequency of 2f. The novel high-repetition-frequency short-pulse LD laser and the operation process have advantages of realizing frequency doubling under a precondition that the pulse power is unchanged, and preventing an influence between the charging circuit and the discharging circuit through a plurality of switches, the positive high-voltage power supply, the negative high-voltage power supply and the clamping diode. Compared with a traditional technical solution, the novel high-repetition-frequency short-pulse LD laser and the operation process thereof have advantages of approximately unchanged performance indexes of required elements, and easy realization.

Description

technical field [0001] The invention belongs to the technical field of laser emission, and in particular relates to a novel high-repetition-frequency short-pulse LD laser and its working process. Background technique [0002] Semiconductor Laser (Semiconductor Laser), also known as Laser Diode (Laser Diode), referred to as LD, is a general term for devices such as optical oscillation and optical amplification that use electronic transitions in semiconductors to cause stimulated emission of photons to generate optical oscillations and optical amplification. [0003] Compared with other types of lasers, semiconductor lasers have the following advantages: high conversion efficiency; wide frequency range; convenient modulation; low driving power supply voltage. [0004] Semiconductor lasers are widely used in many fields. Semiconductor lasers are widely used in military fields such as laser communication, laser guidance and tracking, laser radar, laser ranging, laser weapon sim...

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Problems solved by technology

[0006] Aiming at the problem that the frequency and power of the traditional laser pulse circuit are difficult to increase at the same time, and the pulse width is not easy to further reduce, the purpose of the present invention is to provide a new type of high repetition frequency short pulse LD laser and its working process. The present invention is based on the traditional RC charging circuit In the above, two power supplies are used to supply power under two signals, and high-speed analog switches, such as high-speed switch mos tubes, etc. are used. Under the premise of ensuring the power of the original solution remains unchanged, the frequency can be doubled and the pulse can be reduced. width and rise time, which improves the performance of the laser pulse emission circuit

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