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Laser optical fibre coupler

A fiber coupler and laser technology, applied in the field of optical coupling, can solve problems such as the inability to ensure that the laser beam coincides with the central axis of the optical fiber, large coupling loss, and difficult operation

Inactive Publication Date: 2004-08-18
YANSHAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0002] At present, in the prior art, the hollow-core fiber coupler is mainly composed of a focusing lens, etc., and its adjustment method can only be completed by adjusting the lens and laser tube. The adjustment method of this coupler is not only difficult to operate, but also cannot guarantee The laser beam coincides with the central axis of the optical fiber, which is subject to certain restrictions in actual use
Professor Miyagi and others in Japan specially designed a tapered coupler to couple laser light into a small-aperture hollow-core fiber. Although it is more convenient to adjust, it is only suitable for thin fibers and has a large coupling loss.

Method used

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  • Laser optical fibre coupler
  • Laser optical fibre coupler

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Embodiment Construction

[0007] Accompanying drawing 1 is an embodiment (see Fig. 1) disclosed by the present invention, in the present embodiment, fixed base 10 is coupled with laser output end, and adjustable base 9 makes laser beam from mechanical axis through two degrees of freedom adjustment The central position enters the laser channel in parallel, and the laser beam enters the laser output handle 5 in parallel through the reflector 7, and the positioning is completed by the pressure piece 6 after three-degree-of-freedom adjustment, and the laser beam 11 is realized by the focusing lens 3 in the inner wall of the laser focuser 2 Coincident with fiber 1.

[0008] The invention can transmit any laser power, and can be coupled with an optical fiber with any aperture, and the inner surface is uniform and smooth after polishing, without transmission loss.

[0009] The manufacturing method of the invention is simple, durable, low in cost, strong in practicability, more flexible, convenient to use and ...

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Abstract

This invention relates to an otpcial coupler technical field with the main characteristics of connecting the fixed base plate with a laser output, a modulatable base plate by the modulation of two degrees of freedom enables a laser beam with the central place through a reflection mirror to pass through to the laser output handle by parallel incidence to be aligned with the lower part of central position of the laser output handle, then to modulate the laser handle with three degrees of freedom to make the laser beam to coincide with the mechanical shaft of laser output handle and to fix it with pressure sheet to realize the complete coupler of the laser beam and otpical fiber by the focusing lens of inside wall of the laser focusing device.

Description

technical field [0001] The invention relates to the field of optical coupling technology. Background technique [0002] At present, in the prior art, the hollow-core fiber coupler is mainly composed of a focusing lens, etc., and its adjustment method can only be completed by adjusting the lens and laser tube. The adjustment method of this coupler is not only difficult to operate, but also cannot guarantee The laser beam coincides with the central axis of the optical fiber, which is subject to certain restrictions in practical use. Professor Miyagi and others in Japan specially designed a tapered coupler to couple laser light into a small-aperture hollow-core fiber. Although it is convenient to adjust, it is only suitable for thin fibers and has a large coupling loss. Contents of the invention [0003] The purpose of the present invention is to provide a five-degree-of-freedom random compensation transmission laser fiber coupler, which can compensate any commercial CO 2 T...

Claims

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Application Information

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IPC IPC(8): G02B6/26G02B6/32H01S3/00
Inventor 侯峙云周桂耀侯蓝田
Owner YANSHAN UNIV
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