Time sequence synthesis quasi-continuous optical fiber laser device

A fiber laser and quasi-continuous technology, applied in the laser field, can solve the problems of few reports on the timing synthesis of continuous all-fiber lasers, and the difficulty of pulse timing synthesis, and achieve high timing synthesis efficiency, maintain beam quality, and excellent results

Active Publication Date: 2017-06-13
中科先为激光科技(北京)有限公司
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Problems solved by technology

However, due to the beam transmission in the closed waveguide of the all-fiber laser, it is very difficult to achieve pulse timing synthesis.
At present, there are few reports on the timing synthesis of quasi-CW all-fiber lasers

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  • Time sequence synthesis quasi-continuous optical fiber laser device

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Embodiment Construction

[0021] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be described in further detail below in conjunction with specific embodiments and with reference to the accompanying drawings.

[0022] It should be noted that, in the drawings or descriptions of the specification, similar or identical parts all use the same figure numbers. Implementations not shown or described in the accompanying drawings are forms known to those of ordinary skill in the art. Additionally, while illustrations of parameters including particular values ​​may be provided herein, it should be understood that the parameters need not be exactly equal to the corresponding values, but rather may approximate the corresponding values ​​within acceptable error margins or design constraints. The directional terms mentioned in the embodiments, such as "upper", "lower", "front", "rear", "left", "right", etc., are only referring to the directio...

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Abstract

The invention provides a time sequence synthesis quasi-continuous optical fiber laser device. The device comprises a plurality of identical optical fiber laser device bodies, a laser power supply control pumping monitoring device and a signal beam combiner, wherein the laser power supply control pumping monitoring device is separately connected with the optical fiber laser device bodies, and used for sampling and displaying pumping optical pulse parameters of the optical fiber laser device bodies, and controlling, modulating and triggering corresponding delay for optical fiber laser device bodies without keeping time sequences, so that equal-interval time sequences is kept between the single-way pulse sequences, and time sequence synthesis of laser pulses is achieved; the input end of the signal beam combiner is separately connected with the output ends of the optical fiber laser device bodies, and the output end of the signal beam combiner outputs time sequence synthesized laser. By means of the time sequence synthesis quasi-continuous optical fiber laser device, it can be ensured that output long pulse light beams of the optical fiber laser device bodies keep the time sequences on the time, pulse repetition frequency superposition can be achieved after simple beam combination of the signal beam combiner, the average power is effectively improved, and good light beam quality can be kept.

Description

technical field [0001] The invention relates to the field of laser technology, in particular to a time sequence synthesis quasi-continuous fiber laser. Background technique [0002] High average power all-fiber pulsed lasers have been widely used in fine processing, optical fiber countermeasures, medical treatment, additive manufacturing and other fields in recent years due to their excellent beam quality, high integration, and high conversion efficiency. In the field of pulsed fiber laser technology, the application requirements of quasi-continuous fiber lasers have increased year by year in recent years. The pulse width is long, the pulse duty cycle is generally about 10%, the peak power is more than ten times the continuous power, and the pulse energy is high. For It is very beneficial for applications such as drilling. At present, it is also widely used in precision sheet metal cutting, alumina (polycrystalline Al 2 o 3 ), aluminum nitride (AlN) and other superconduct...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01S3/067H01S3/11
CPCH01S3/067H01S3/11
Inventor 宫武鹏薛宇豪孙伟雷文强陈子伦
Owner 中科先为激光科技(北京)有限公司
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