CN2549489Y

CN2549489Y - Optical fibre collimator

Info

Publication number: CN2549489Y
Application number: CN 02278154
Authority: CN
Inventors: 陈冬兰
Original assignee: Yangtze Optical Fibre and Cable Co Ltd
Current assignee: Yangtze Optical Fibre and Cable Co Ltd
Priority date: 2002-06-27
Filing date: 2002-06-27
Publication date: 2003-05-07
Anticipated expiration: 2012-06-27

Abstract

The utility model relates to an optical fibre collimator which makes the two optical fibers aim and couple with each other during the optical fiber test, including a soleplate. The utility model differs from the prior art that the middle of the soleplate is provided with an aiming base with a longitudinal V-shaped groove, and the two sides of the aiming base are correspondingly provided with a fiber clamping base with a top inclining towards the aiming base, while the inclined top of the fiber clamping base is provided with a longitudinal fiber clamping guide groove which is corresponding to the V-shaped groove. The inclined angle Alpha of the inclined top of the fiber clamping base ranges from 20 to 30 DEGs, the angle of the V-shaped groove is 60 to 90 DEGs, a fiber clamping base of least one side is connected with a longitudinal slide device. The utility model has the advantages of 1, simple operation, rapid aiming high success rate of on-off operation; 2, good coupling property, low power consumption, small reflection and improved accuracy of fiver test; 3, simple structure and reliable performance.

Description

Optical fiber collimator

Technical field

The utility model relates to a kind of optical fiber collimator that test optical fiber makes the coupling of two optical fiber aligns that is used for.

Background technology

Optical fiber need carry out the test of optical characteristics after machine-shaping, and the test of optical fiber must be aimed at the transition optical fiber on the testing tool by testing fiber, this means that two optical fiber will dock end face with one heart and fit, and could guarantee the accuracy of test.Existing optical fiber collimator such as manual adjustments micron collimating apparatus adopt the mode of two fine straight butt joints, and not only the structure of instrument is comparatively complicated, operates cumbersomely, and optical fiber is difficult for aiming at, adjustment often, alignment speed is slow.

Summary of the invention

Problem to be solved in the utility model is to provide a kind of simple in structure, easy to operate at the deficiency that above-mentioned prior art exists, and aims at optical fiber collimator rapidly.

The utility model is to address the above problem the technical scheme that is proposed to be: include base plate 10, difference is that the middle part of base plate installs the aligning seat 6 that its end face offers vertical V-shaped groove, install its end face to aiming at the

fine holder

9,4 that seat tilts in the both sides correspondence of aiming at seat, corresponding V-shaped groove is provided with vertical fine folder guide groove 15 on the sloped top face of fine holder.

Press such scheme, the degree of tilt α of the relative V-shaped groove of described fine holder sloped top face is 20～30 °; The V-shaped groove angle of aiming on the seat is 60～90 °.Have at least the fine holder and a straight skidding device of a side to link.

When the utility model uses, testing fiber and transition optical fiber are fixed the optical fiber that also stretch out one section removal coat forward with fibre clip 5 respectively, with cutter to the cutting of the optical fiber end that stretches out after, they are placed into respectively on the fine holder of both sides, make their located lateral by vertical fine folder guide groove, extended forward optical fiber promptly enters in the V-shaped groove of aiming at seat, utilize the gravity and the elasticity of optical fiber self simultaneously, make after their leading portion bendings forward straight, under the effect of V-shaped groove, aim at coupling rapidly, the optical fiber two ends fit tightly, and promptly finish the rapid alignment coupling of preceding testing fiber of test and transition optical fiber.When aiming at optical fiber first, can change the butt joint distance that two fine holder distances are adjusted two optical fiber by regulating the straight skidding device, make its best, locking then, optical fiber align does not thereafter generally need to adjust again.

The beneficial effects of the utility model are: 1, easy and simple to handle, aim at rapidly the disposable power height that is operable to; 2, coupling performance is good, and power attenuation is low, reflects for a short time, and the accuracy of test optical fiber is improved; 3, features simple structure, usability is reliable.

Description of drawings

Fig. 1 is the front elevation of an embodiment of the utility model.

Fig. 2 is the B-B sectional view among Fig. 1.

Fig. 3 is for aiming at the sectional view of the another kind of V-shaped groove structure of seat.

Fig. 4 is the vertical view of Fig. 1.

Fig. 5 cuts open figure for the A-A office among Fig. 1.

Fig. 6 is the C-C cut-open view among Fig. 1.

Embodiment

Further specify embodiment of the present utility model below in conjunction with accompanying drawing, include a rectangular base plate 10, the middle part is installed on the aligning seat 6 that its top offers vertical V-shaped groove 13 on the base plate, aiming at the seat lower end connects firmly with screw 14 and base plate, V-shaped groove is a groove, 90 ° of its cross section angles, can offer a straight trough in the V-shaped groove bottom, install two rollers arranged side by side 11 in the straight trough, be used for fibre, be installed on its end face to aiming at the fine holder 9 that seat tilts in the both sides correspondence of aiming at seat, 4, the angle of inclination of end face (corresponding to V-shaped groove) is α=25 °, corresponding V-shaped groove is provided with vertical fine folder guide groove 15 on the end face of fine holder, the side of vertically fine folder guide groove is aimed at the center line of V-shaped groove, front end at fine holder end face is provided with backstop step 7, vertically fine folder the following of guide groove can be installed magnetic patch 8 in the fine holder, be used for adhesive to fibre clip 5, fine holder lower end connects firmly with screw 14 and base plate, adjustment for ease of the butt joint distance, the fine holder bottom of one side and a straight skidding device link, the straight skidding device includes holder 16, offer the guide rail phase configuration of vertical guide groove 17 and fine holder 4 bottom surfaces above the holder, two at holder is provided with bearing, is supported with screw mandrel 3, and screw mandrel installs in the screw on the fine holder, the screw mandrel front end is equipped with handwheel 1, be equipped with lock-screw 2 on the bearing,, fine holder 4 longitudinally moved around by rotation hand wheel 1.

The utility model can walk abreast simultaneously on base plate and install 2～3 rows' aligning seat and fine holders, to constitute 2～3 straight devices of independent optical fiber align.

Claims

1, a kind of optical fiber collimator, include base plate (10), the aligning seat (6) that its end face offers vertical V-shaped groove is installed at the middle part that it is characterized in that base plate, install its end face to aiming at fine holder (9), (4) that seat tilts in the both sides correspondence of aiming at seat, corresponding V-shaped groove is provided with vertical fine folder guide groove (15) on the sloped top face of fine holder.

2, by the described optical fiber collimator of claim 1, it is characterized in that the degree of tilt α of the relative V-shaped groove of described fine holder sloped top face is 20～30 °.

3, by claim 1 or 2 described optical fiber collimators, the V-shaped groove angle that it is characterized in that aiming on the seat is 60～90 °.

4, by claim 1 or 2 described optical fiber collimators, it is characterized in that having at least the fine holder of a side and a straight skidding device to link.

5, by claim 1 or 2 described optical fiber collimators, a straight trough is offered in the V-shaped groove bottom that it is characterized in that aiming on the seat, installs two rollers arranged side by side (11) in the straight trough.

6, by claim 1 or 2 described optical fiber collimators, it is characterized in that being provided with backstop step (7) at the front end of fine holder end face, magnetic patch (8) is installed in the below of fine folder guide groove in the fine holder.

7, by the described optical fiber collimator of claim 4, it is characterized in that the straight skidding device includes holder (16), offer the guide rail phase configuration of vertical guide groove (17) and fine holder (4) bottom surface above the holder, two at holder is provided with bearing, be supported with screw mandrel (3), screw mandrel installs in the screw on the fine holder, and the screw mandrel front end is equipped with handwheel (1), is equipped with lock-screw (2) on the bearing.

8,, it is characterized in that parallel simultaneously aligning seat and the fine holder of installing 2～3 rows on base plate, to constitute 2～3 straight devices of independent optical fiber align by claim 1 or 2 described optical fiber collimators.