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Picosecond laser pulse train optical fiber amplifier with high beam quality

A fiber amplifier, picosecond laser technology, used in lasers, laser parts, phonon exciters, etc., can solve problems such as hidden dangers of product reliability, and achieve the effect of simple operation and high precision

Pending Publication Date: 2020-09-01
广东瀚盈激光科技有限公司
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  • Abstract
  • Description
  • Claims
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Problems solved by technology

This is a very big hidden danger to the reliability of the product

Method used

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  • Picosecond laser pulse train optical fiber amplifier with high beam quality
  • Picosecond laser pulse train optical fiber amplifier with high beam quality
  • Picosecond laser pulse train optical fiber amplifier with high beam quality

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Embodiment Construction

[0027] Such as Figure 1-6 In the embodiment of the present invention shown, the high-power ultrashort pulse fiber laser system has a similar functional module structure, including a laser seed source 27, a seed signal processing module 28, a first high-power optical fiber amplification module 29 and high-power laser shaping and processing module 30, such as figure 1 A schematic diagram of the functional modules of a high-power ultrashort pulse (picosecond pulse or femtosecond pulse) fiber laser system is shown. Generally, the ultrashort pulse laser signal is generated by a seed source. Currently, most seed sources are produced using passive model-locking techniques. Before the signal generated by the seed source is sent to the high-power amplifier for amplification, it needs to undergo some shaping processing. For example, the repetition frequency of the seed source signal is usually above 10MHz. In order to amplify the energy of the pulse, the repetition frequency of the ...

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Abstract

The invention discloses a picosecond laser pulse train optical fiber amplifier with high beam quality. The amplifier comprises a signal pumping synthesizer capable of combining a signal with a pump, the signal pumping synthesizer is provided with a signal input end, and the input end of the signal pumping synthesizer is connected with pumping laser. The output end of the signal pumping synthesizeris connected with the input end of a gain fiber, and the output end of the gain fiber is connected with a light beam collimator. According to the invention, the pump laser and the signal light can becombined and amplified, a high-quality light beam is provided, and in addition, the structure of the light beam collimator ensures the quality of the outputted light beam.

Description

technical field [0001] The invention relates to the field of optical fiber amplifiers, in particular to a picosecond laser pulse train optical fiber amplifier with high beam quality. Background technique [0002] Ultrashort pulse lasers can generate picosecond to sub-picosecond laser pulses, and have a wide range of applications in industrial processing, medical treatment, and many other fields. Among them, the fiber-type ultrafast laser has the advantages of reliability, stability, and small size, so its development has received special attention. So far, people's research and development efforts on this type of laser products have mainly focused on femtosecond or picosecond pulses with high single pulse energy (tens of microjoules to hundreds of microjoules) and low repetition rate (hundreds of thousands of Hz). Laser single pulse. Although the "processing" performance of this pulsed laser is extremely superior, due to the limitations of various nonlinear effects, it is ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01S3/067H01S3/10
CPCH01S3/06733H01S3/06754H01S3/10007
Inventor 黄旭辉
Owner 广东瀚盈激光科技有限公司
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