Pump laser overcurrent lockout protection circuit

Abstract

The invention discloses an overcurrent latch-up protective circuit of a pumping laser. The overcurrent latch-up protective circuit comprises a current sampling part A, a sampling current analysis part B, a current adjusting part C, an overcurrent detecting part D and an overcurrent protection part E. The overcurrent latch-up protective circuit of the pumping laser has the advantages that the current sampling part, the sampling current analysis part and the current adjusting part are arranged, so that the current can be adjusted in real time, and the operation of the laser is more stable; and the overcurrent detecting part and the overcurrent protection part are arranged, so that the laser can be protected from being burned down when sudden high-current occurs.

Description

technical field [0001] The invention relates to an overcurrent detection circuit used by a laser, in particular to an overcurrent blocking protection circuit for a pumping laser. Background technique [0002] Diode Pump Solid State Laser (English full name: Diode Pump Solid State Laser) is a new type of laser with the fastest development and wide application in the world in recent years. This type of laser uses a fixed-wavelength semiconductor laser instead of the traditional krypton lamp or xenon lamp to pump the laser crystal, and thus has achieved a new development, which is called the second-generation laser. This is a second-generation new solid-state laser with high efficiency, long life, high beam quality, good stability, and compact structure. It has been used in space communication, optical fiber communication, atmospheric research, environmental science, medical equipment, and optical imaging. Processing, laser printers and other high-tech fields have unique appli...

AI Technical Summary

Problems solved by technology

However, the pump laser is very expensive, and it is easy to burn the laser if it encounters an instantaneous shock and a sudden high current

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