Impedance adaptive laser diode driving circuit

A technology of laser diodes and driving circuits, applied in circuits, lasers, laser parts, etc., can solve the problems of laser diode damage, no overcurrent power-off and over-temperature power-off protection functions, and achieve the effect of efficient work
CN109546528AInactive Publication Date: 2019-03-29JILIN UNIV
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
JILIN UNIV
Publication Date
2019-03-29
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention relates to an impedance adaptive laser diode driving circuit and belongs to the technical field of electronic equipment. The impedance adaptive laser diode driving circuit comprises a current setting module (1), a amplitude-limiting setting module (2), a power output module (3), a load determining module (4), a delay compensation module (5), a voltage following module (6) and a power-off protection module (8). The impedance adaptive laser diode driving circuit can actively adapt to the change of a load in operation, and has high efficiency, a wide load adaptation range, high safety and high reliability.
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Description

technical field

[0001] The invention belongs to the technical field of electronic equipment. In particular, it relates to an impedance adaptive laser diode drive circuit. Background technique

[0002] Fiber lasers are widely used in national defense, military industry, high-precision industrial processing and other fields due to their high efficiency, good heat dissipation, good beam quality, simple structure, small size, and light weight. The basic components of a fiber laser are a pump source, a fiber gain medium, and an optical resonator. Among them, the pump source is the most basic component of the entire fiber laser system, which has an important impact on the overall performance of the fiber laser system. The pump source is mainly composed of a high-power semiconductor laser diode and a drive and control circuit. Since the semiconductor laser diode is a device with high power density and extremely high quantum efficiency, its ability to withstand electrical shock is...

Claims

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