Large-beam-aperture high-power isolator structure
An isolator and high-power technology, applied in the optical field, can solve problems such as poor heat dissipation and unstable magnetic field, and achieve the effects of improving heat dissipation, saving magnet materials, and improving magnetic field distribution
Pending Publication Date: 2021-06-04
桂林光隆光学科技有限公司
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Problems solved by technology
[0003] The purpose of the present invention is to provide a large-beam-aperture high-power isolator structure, which aims to solve the technical problems of the high-power isolator in the prior art that the magnetic field is not stable enough and the heat dissipation is poor
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[0022] Embodiments of the present invention are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals designate the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary and are intended to explain the present invention and should not be construed as limiting the present invention.
[0023] In describing the present invention, it should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", The orientation or positional relationship indicated by "horizontal", "top", "bottom", "inner", "outer", etc. are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than Nothing indicating or implying that a referenced device or element...
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The invention discloses a large-beam-aperture high-power isolator structure. An isolator core reflection assembly is detachably connected with a light path and is located in the light path, a first magnet group is detachably connected with a dustproof cover and is located at the top of the dustproof cover, the second magnet group is detachably connected with the second accommodating cavity and is located below the first accommodating cavity, and the isolator core reflection assembly and the optical path form a Faraday rotator optical path Z-shaped refraction structure, so that the size of the TGG optical rotation crystal is reduced, and the cost is saved. By adopting the magnet group, the least magnets generate the strongest and most uniform magnetic field, and magnet materials are saved. The magnet groups are assembled in an up-and-down array mode, the fixing structure is firm, stable and reliable, the magnetizers are used for guiding a magnetic field and optimizing magnetic field distribution, the structural space is reasonably utilized, the phenomena of magnetic field weakening and demagnetization caused by high temperature are avoided, and the stability of the isolator is improved. The designed core structure scheme is beneficial to assembly of optical components, is stable and reliable, and can effectively dissipate heat and control temperature.
Description
technical field [0001] The invention relates to the field of optical technology, in particular to a structure of a high-power isolator with a large beam aperture. Background technique [0002] In the optical transmission system, different degrees of reverse transmission of light caused by the end face of the optical element will cause unstable operation of the laser device, greatly shorten the life of the device, and even cause its permanent damage. In order to avoid the impact of reverse light on the device, an optical isolator is often inserted in the optical transmission system. In recent years, the development of high-power fiber lasers and their extensive expansion in industrial marking, welding, cutting and other applications have put forward higher requirements for high-power optical isolators, a key component. In the case of increasing power requirements, the laser beam itself will become thicker, so large beam aperture and high power optical isolation is an importa...
Claims
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IPC IPC(8): G02F1/09
CPCG02F1/093
Inventor 叶勇廖伦翔刘奎黄程鹏
Owner 桂林光隆光学科技有限公司