CN2343598Y

CN2343598Y - High-power water-cooled optical fibre apparatus

Info

Publication number: CN2343598Y
Application number: CN 98242070
Authority: CN
Inventors: 周钢; 孙文
Original assignee: Wuhan Chutian Laser Group Co Ltd
Current assignee: Wuhan Chutian Laser Group Co Ltd
Priority date: 1998-10-09
Filing date: 1998-10-09
Publication date: 1999-10-13
Anticipated expiration: 2008-10-09

Abstract

The utility model relates to a high-power water-cooled optical fiber apparatus, comprising an optical fiber provided with an optical input end and optical output end and an optical coupler which is arranged in the input end of the optical fiber, wherein, the periphery of the optical coupler is provided with a cooling jacket; the interlayer space is arranged between the cooling jacket and the optical coupler; the cooling water passes through the interlayer space; the cooling jacket is provided with a water inlet and a water outlet which are communicated with the interlayer space. Because the utility model adopts the structure, when the optical coupler carries out the high-power coupling, the cooling water in the interlayer is capable of carrying off the heat generated by the coupling of the coupler, consequently avoids the coupler be damaged by overheating and guarantees the coupling efficiency.

Description

High-power water cooled optical fiber device

The utility model relates to a kind of high-power water cooled optical fiber device.

Along with development of fiber technology, the characteristic of Optical Fiber Transmission light has obtained successful application in industrial circle.Utilize optical fiber to carry out light transmission, at first must be delivered into the luminous power that light source sends in the optical fiber and go the i.e. optically-coupled of optical fiber.Fiber coupler of the prior art has a variety of, as Lens Coupling device, light holographic coupler etc.Above-mentioned coupling mechanism can be used for lower-powered optically-coupled, but if powerful light is delivered in the optical fiber, because the temperature of coupling mechanism is higher in the coupling process, and easily makes coupling mechanism impaired, influences coupling efficiency.

The purpose of this utility model provides a kind of high-power water cooled optical fiber device at the problems referred to above exactly, and when carrying out high-power optically-coupled, the coupling mechanism of this device is difficult for impaired because of temperature in it is not high, thereby guarantees coupling efficiency.

The technical solution of the utility model is: a kind of high-power water cooled optical fiber device, comprise optical fiber with light input end and output terminal and the photo-coupler of being located at optic fibre input end, its special character is that the photo-coupler periphery is provided with cooling jacket, have the mezzanine space that is installed in chilled water between cooling jacket and the photo-coupler, cooling jacket is provided with water inlet and the water delivering orifice that communicates with mezzanine space.

Above-mentioned optic fibre input end outer radial periphery also can be provided with the mezzanine space of logical chilled water.

And, also can be on above-mentioned optical fiber sheathed protection tube, have the space of logical protection gas between protection tube and the optical fiber, fiber-optic output is provided with focus head, is provided with the passage with the space UNICOM of above-mentioned logical protection gas in the focus head, this passage communicates with the light exit of focus head.

Described focus head can be connected the Connection Block of fiber-optic output and mirror cover and be located at the shaven head formation that mirror overlaps an end by the mirror cover of establishing focus lamp in it.

Above-mentioned mirror cover periphery also can be provided with the mezzanine space of logical chilled water.

And optic fibre input end and output terminal are respectively equipped with the fixedly Hough chuck of input end and output terminal.

The utility model is owing to be provided with the mezzanine space of logical chilled water in the photo-coupler periphery; chilled water is taken out of from water delivering orifice to the photo-coupler cooling and with the heat that absorbs after entering mezzanine space by water inlet; like this photo-coupler when carrying out high-power coupling in it temperature not high and be difficult for impaired, thereby the protection coupling efficiency.

Below in conjunction with accompanying drawing the utility model is further described.

Fig. 1 is a structural representation of the present utility model;

Fig. 2 is the A-A cut-open view of Fig. 1;

Fig. 3 is the B-B cut-open view of Fig. 2.

Referring to Fig. 1～Fig. 3, the utility model comprises the optical fiber 17 with light input end 8 and output terminal 23, and be located at the photo-coupler 1 of optic fibre input end 8, coupling mechanism 1 in the accompanying drawing is by microscope base 3, the optic fibre input end face 21 of being located at coupling convex lens 5, the coupling concave mirror 6 in the microscope base 3 and being located in the microscope base 3 constitutes, microscope base 3 outer radial periphery are provided with cooling jacket 7, have the mezzanine space 2 of logical chilled water between cooling jacket 7 and the microscope base 3, and cooling jacket 7 is provided with water inlet 4 and the water delivering orifice 9 that communicates with mezzanine space 2.Optic fibre input end 8 outer radial periphery also can be provided with the mezzanine space 12 of logical chilled water, input end 8 heatings when avoiding high-power optically-coupled.Mezzanine space 12 is made of the space 12 between the cover 10 in cooling jacket 11 that is fixedly arranged on optic fibre input end 8 and the cooling, and interlayer overcoat 11 is provided with water inlet 20 and water delivering orifice 13.The output terminal 23 of optical fiber 17 is provided with focus head 25, and focus head 25 is connected the Connection Block 24 of fiber-optic output 23 and mirror cover 28 and is located at shaven head 30 formations that mirror overlaps 28 1 ends by the mirror cover 28 of establishing focus lamp 26 in it.Also can sheathed protection tube 16 on the optical fiber 17, protection tube 16 1 ends are socketed on the adapter sleeve 15 that connects with cooling jacket 11, and protection tube 16 other ends are socketed on the adapter sleeve 36 that connects with Connection Block 24.The space 18 that has logical protection gas between protection tube 16 and adapter sleeve 36 and the optical fiber 17.Be provided with the passage 33 with above-mentioned space 18 UNICOMs in the focus head 25, this passage 33 communicates with the light exit 32 of optically focused head 25.Protection gas import 19 is located on the connected set 15.Lead to the protection gas both can also shield to light work to 17 cooling effects of optical fiber.

Loss focus lamp 26 also can overlap the mezzanine space 34 that 28 peripheries are established logical chilled water at mirror for fear of focus head 25 internal causes are overheated, and mezzanine space 34 overcoats 29 are provided with water inlet 27 and the water delivering orifice 35 that communicates with mezzanine space 34.

The utility model also can be established the Hough

chuck

14,22 of fixedly input end 8 and output terminal 23 respectively to substitute the classic method with cementing agent fixed fiber input end and output terminal at optic fibre input end 8 and output terminal 23.So not only assembling is quick, and when changing optical fiber convenient disassembly.

The high-power light (laser) that light source sends during the utility model work is delivered in the optical fiber 17 through coupling mechanism 1, and is transferred to output terminal 23, acts on the workpiece 31 after being focused on by focus head 25.The heat of generations such as coupling in the said process, transmission, focusing is respectively through water-cooled and air cooling and cool off, thereby avoids coupling mechanism 1, focus head 25, optical fiber 17 because of overheated impaired.

Claims

1, a kind of high-power water cooled optical fiber device, comprise the optical fiber [17] of have light input end [8] and output terminal [23] and be located at the photo-coupler [1] of optic fibre input end [8], it is characterized in that photo-coupler [1] periphery is provided with cooling jacket [7], the mezzanine space [2] that has logical chilled water between cooling jacket [7] and the photo-coupler [1], cooling jacket [7] are provided with water inlet [4] and the water delivering orifice [9] that communicates with mezzanine space [2].

2, device according to claim 1 is characterized in that optic fibre input end [8] outer radial periphery is provided with the mezzanine space [12] of logical chilled water.

3, device according to claim 1 and 2; it is characterized in that being arranged with on the optical fiber [17] protection tube [16]; the space [18] that has logical protection gas between protection tube [16] and the optical fiber [17]; fiber-optic output [23] is provided with the passage [33] that is provided with in focus head [25], the focus head [25] with space [18] UNICOM of above-mentioned logical protection gas, and this passage [33] communicates with the light exit [32] of focus head [25].

4, device according to claim 3 is characterized in that focus head [25] by the mirror cover [28] of establishing focus lamp [26] in it, connects the Connection Block [24] of fiber-optic output [23] and mirror cover [28] and is located at shaven head [30] formation of mirror cover [28] one ends.

5, device according to claim 4 is characterized in that mirror cover [28] periphery is provided with the mezzanine space [34] of logical chilled water.

6, device according to claim 5 is characterized in that optic fibre input end [8] and output terminal [23] are respectively equipped with the fixedly Hough chuck [14,22] of input end [8] and output terminal [23].