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Ultrahigh fiber laser system with controllable output beam intensity profile

A laser system, fiber laser technology, applied in the direction of lasers, clad optical fibers, multi-core optical fibers, etc., can solve the problems of complex configuration of combiners, low labor and cost, etc.

Pending Publication Date: 2021-07-23
IPG PHOTONICS CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Synthesizers are complex to configure and thus labor and cost inefficient

Method used

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  • Ultrahigh fiber laser system with controllable output beam intensity profile
  • Ultrahigh fiber laser system with controllable output beam intensity profile
  • Ultrahigh fiber laser system with controllable output beam intensity profile

Examples

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Embodiment Construction

[0029] Reference will now be made in detail to embodiments of the present invention. Wherever possible, the same or similar reference numerals are used in the drawings and the description to refer to the same or similar components or steps. The drawings are in simplified form and not to exact scale. Directional (up / down, etc.) or kinematic (forward / backward, etc.) terms may be used with respect to the figures for convenience and clarity only. The term "coupled" and similar terms do not necessarily imply direct and direct connections, but also include connections through intermediate elements or devices.

[0030] according to figure 1 , figure 2 and image 3In keeping with the inventive concept shown, the disclosed ultra-high power all-fiber laser system 10 may include any number of fiber laser sources 14p-14c limited only by practical considerations. The laser sources 14 are arranged in a configuration having one or more central laser sources 14c and a plurality of perip...

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Abstract

A disclosed ultra-high power all fiber laser system is configured with multiple spaced apart fiber lasers outputting respective laser beams respective paths. The disclosed system is further configured with a tapered fiber-bundle including at least, one central guiding fiber and a plurality of peripheral guiding fibers. The disclosed system further has a multiclad delivery fiber configured with a double-bottle neck cross-section and provided with at least two concentric and radially spaced apart inner and outer cores. The inner core is coupled to the peripheral guiding fibers while the inner core is spliced to the central guiding fiber so that a system output emitted from the inner core of the delivery fiber has a different beam shape from the system output emitted from the outer core.

Description

technical field [0001] The present disclosure relates to ultrahigh all-fiber laser systems. In particular, the present disclosure relates to an ultra-high power all-fiber laser system operable to deliver beams having different intensity profiles simultaneously or sequentially. Background technique [0002] Ultra-high fiber laser systems are known to output high-brightness output light of several kilowatts. Because a typical high-power fiber laser system includes multiple fiber laser modules combined together, a typical high-power fiber laser system has a large footprint and is therefore not easy to handle. However, there is often a need to deliver high power light to remote and inaccessible locations. For this reason, high-power laser systems have longer delivery fibers, which can be detrimental to high-quality light and fiber integrity due to many nonlinear effects. [0003] In optics, the term "nonlinearity" refers to an intensity-dependent phenomenon. Nonlinear effect...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01S3/067H01S3/101H01S5/40
CPCG02B6/02042B23K26/0608H01S3/067H01S3/2383H01S3/005G02B6/04G02B6/26G02B6/4296H01S3/06745H01S3/101H01S5/4012
Inventor 尤金·谢尔巴科夫瓦伦丁·弗明安德雷·阿布拉莫夫米哈伊尔·阿布拉莫夫德米特里·雅戈金
Owner IPG PHOTONICS CORP