High-energy output type pulse laser

By inserting an optical isolator into the pulse laser and using xenon lamp rotation pump technology, the problems of self-oscillation and low energy utilization are solved, high energy output and stable operation are achieved, and the life of the equipment is extended.

CN119315356APending Publication Date: 2025-01-14张永康
View PDF 0 Cites 0 Cited by

Patent Information

Application Number
CN202411224295.0
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2024-09-03
Publication Date
2025-01-14

AI Technical Summary

Technical Problem

Existing pulsed lasers have self-excitation oscillation at high energy output and high repetition frequency, resulting in a decrease in gain and unstable operation. At the same time, the energy utilization rate is low, the equipment is susceptible to heat accumulation, and the high energy density may lead to air breakdown.

Method used

A high-energy output pulse laser is designed. By inserting a first optical isolator between the high-energy output single longitudinal mode oscillation system and the pre-amplification stage amplification system, the irradiated object after the main amplifier stage amplification system and the laser output A second optical isolator is inserted between them to prevent the optical signal from going retrograde and avoid self-oscillation. At the same time, a xenon lamp is used to rotate around the crystal rod for pumping to improve energy utilization, and a transparent vacuum glass tube is added to the laser amplification system to prevent air from being penetrated.

Benefits of technology

It effectively avoids the self-oscillation phenomenon, improves the energy utilization rate and working stability of the pulse laser, extends the service life of the equipment, and reduces the difficulty of manufacturing and debugging.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN119315356A_ABST
    Figure CN119315356A_ABST
Patent Text Reader

Abstract

The invention discloses a high-energy output type pulse laser, and belongs to the technical field of pulse lasers. The laser comprises a high-energy output single longitudinal mode oscillation system, a first optical isolator, a laser pulse clipping device, a first beam expander, a first total reflective mirror, a second total reflective mirror, a pre-amplification output polaroid, a pre-amplification amplification system, a pre-amplification total reflective mirror, a main amplification total reflective mirror, a second beam expander, a main amplification amplification system and a second optical isolator. A laser beam output by the high-energy output single-longitudinal-mode oscillation system is subjected to optical isolation through a first optical isolator, a laser pulse clipping device and a first beam expander in sequence, and is input into the pre-amplification system through a first total reflection mirror and a second total reflection mirror, and under the action of the pre-amplification total reflection mirror, the laser beam is output to the high-energy output single-longitudinal-mode oscillation system. And pre-amplification laser formed after the energy or power of the laser beam is subjected to secondary amplification treatment by the pre-amplification amplification system sequentially passes through a pre-amplification output polaroid, a main amplification total reflection mirror, a second beam expander, the main amplification amplification system and a second optical isolator. According to the laser, the self-oscillation phenomenon can be avoided, so that the problems that the gains of a pre-amplification-stage amplification system and a main amplification-stage amplification system are reduced and the work of a high-energy output single longitudinal mode oscillation system is unstable are solved.
Need to check novelty before this filing date? Find Prior Art