Optical fiber coupling device of fiber laser

Abstract

The invention provides an optical fiber coupling device of a fiber laser comprises bottom plate, an optical fiber support base, an optical fiber support lateral moving plate, an angle adjustment screw, a spherical washer, an optical fiber support longitudinal moving plate, an optical fiber support angle adjustment plate, a longitudinal adjustment screw, an optical fiber fixed seat, an optical fiber water-cooling block, an optical fiber water-cooling block water nozzle, a rear end locking nut of a focusing lens barrel, the focusing lens barrel, a guide pin of the focusing lens barrel, a focusing lens barrel seat, a front end locking nut of the focusing lens barrel, a focus lens, a focus lens pressing ring, a focus lens washer, a focusing lens barrel seat water nozzle, a transverse adjustment screw, a limit block of the transverse adjustment screw, a guide rod and an optical fiber water-cooling screw plug. The optical fiber support lateral moving plate is matched with the U-shaped structure of the optical fiber support base, the optical fiber support longitudinal moving plate is matched with the U-shaped structure of optical fiber support lateral moving plate, the optical fiber support angle adjustment plate is matched with the optical fiber support longitudinal moving plate through a spherical surface, and the excircle of the focusing lens barrel is matched with the bore of the focusing lens barrel seat. The optical fiber coupling device has a compact structure, is convenient to operate, and is stable and reliable.

Description

technical field [0001] The invention relates to the field of lasers, in particular to a fiber coupling device for a fiber laser. Background technique [0002] As a representative of the third-generation laser technology, fiber lasers are being used more and more widely. The fiber coupling device is an important part of the fiber laser, which directly affects the coupling efficiency and even affects the power index of the laser. [0003] The traditional optical fiber coupling device is generally an optical adjustment frame, which can realize five-dimensional adjustment of optical fibers, but its disadvantage is that there are elastic elements such as springs on the adjustment frame, which cannot maintain the stability of the optical fiber position for a long time, and this structure is not easy to cool the optical fiber. . Contents of the invention [0004] The technical problem to be solved by the present invention is to provide a fiber laser fiber coupling device, which...

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Problems solved by technology

[0003] The traditional optical fiber coupling device is generally an optical adjustment frame, which can realize five-dimensional adjustment of optical fibers, but its disadvantage is that there are elastic elements such as springs on the adjustment frame, which cannot maintain the stability of the optical fiber position for a long time, and this structure is not easy to cool the optical fiber.

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