A Novel High Repetition Frequency Short Pulse ld Laser and Its Working Process

Abstract

A new type of high-repetition-frequency short-pulse LD laser and its working process. The laser includes two positive and negative high-voltage power supplies of equal size, two pulse signals, two high-speed analog switches controlled by pulse signals, two clamping diodes, Two energy storage elements, two decoupling capacitors, two charging current-limiting resistors, one discharging current-limiting resistor and a laser diode; the working process is as follows: set the frequency of the control signal to be f, and the phase difference between the two signals is π; Under the action of the control signal, the two energy storage elements discharge alternately, with a discharge interval of T / 2, so that the laser tube emits laser pulses with a frequency of 2f. The invention doubles the frequency under the premise that the pulse power remains unchanged; multiple Switches, positive and negative high-voltage power supplies, and clamping diodes avoid the mutual influence between the two charging and discharging circuits; compared with traditional solutions, the performance indicators of the required components are basically unchanged and are easy to implement.

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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