JPS59156656A - Method of polishing part of end face of optical-fiber connector plug - Google Patents

Abstract

PURPOSE:To make the end face of an optical fiber slightly sunken from the end face of an optical fiber connector plug, by polishing the end face of the plug in part with the use of a polishing jig which has a flat polishing surface so that the fiber axis part of the plug is polished by the end face which is eccentric from the center thereof. CONSTITUTION:An optical fiber 2 is inserted into the center of an optical fiber connector plug 1 formed by a plastic moulding method and having an outer diameter of 3mm., and is bonded to the body of the plug by means of a bonding agent 3. An abrasive is coated on the polishing surface of a columnar polishing jig 4 made of brass. The connector 1 is abutted against the polishing jig 4 so that the rotating axis 6b of the plug 1 is shifted from the rotating axis 6a of the polishing jig 4 by 0.4mm., and then the plug body and the polishing jig 4 are rotated in the opposite directions to polish a part 7 to be polished by a depth of 3mum. The projected amount of the fiber 2 from the plug 1 part which is polished together with the fiber 2 was measured by a surface roughness tester, which was 1mum. As a result, the optical fiber connector plug in which the end face of the optical fiber is sunken from an unpolished part by 2mum, is obtained.

Description

[Detailed description of the invention]

Regarding polishing methods. Removed by polishing the Y8 side of the original fiber connector plug and butting the original fiber connector plugs against each other. In order to prevent the fiber end ■ from becoming false, connect the plug end [10 to 71 (1) at the fiber end.
Ru0 subordinate rice, metal'! FfL: In a ceramic-faced optical fiber connector two lug, a panning wheel is ladle for the purpose of gating the fiber end. However, in the case of plastic optical fiber connector plugs such as ρ1, the hardness of the fiber (U) remains even after the end face of the plug is polished by puff polishing. Because it is much more sieved than the Rusnack fii 1 product, it sticks out from the 2-aiba edge ■ or the surrounding glasstic #i product 1. If the two plugs are pushed together, the fiber end faces will come into contact with each other and the fiber end faces will be damaged. For this reason, it has been proposed to polish at least a portion of the end face of the fiber to make the end face of the fiber smaller than the end face of the connector plug. This partial end face polishing tool uses a rotary chamber inner body 7 which can be determined by the radius of curvature of the abrasive material. However, with this method, the burr polishing f1. There is a drawback in that the radius of curvature becomes λ due to the increased wear of the abrasive material on the platform 1, making it impossible to polish to a depth of one foot. On the other hand, the center of the polishing jig is made to have a flat surface that does not change its shape due to wear, and the outer diameter of the polishing jig is 3c, which is optically smaller than the diameter of the connector plug. A partial end face polishing method has been proposed in which at least the fiber end face r is rotated as a rotational axis with the axis r abutted against the center %i of the fiber, and one or both sides are rotated with a force of force 7t.
Are you there? In this partial end-face polishing method, the central axis of rotation has almost no rotational energy, and the end of the fiber, which has a minute diameter, cannot be polished sufficiently. It is a 2tR thing that has no purpose in overcoming the 3 long points of this uninvented thing. “Lug end face r”
Does the hammer contact the polishing jig with a flat surface? , by rotating at least one of the plug or the 4vt fiber, all ends of the nine fibers [1

[J's analogy is that the molecule is partially polished.
15 Soup end t [U Yui' In the M method, (I j The rotation axis of the plug when both the tool lugs and the polishing jig are rotated by 1 u; vt III rotation axis and fiber +
M is the same axis number, the plug's rotation axis is 1.
] <For pigeon houses that do not act as shafts, both rotation axes are coaxial → # and the rotating direction and rotation speed are not equal (b) When one of the plug and polishing jig rotates and the plug rotates 1J Fubuino (shaft or rotation axis and lt/'1 state, if the polishing jig is a rotor, the rotation axis of the polishing jig and the fiber axis are not coaxial) The present invention is characterized by a method for polishing the partial end face of an ex-fiber cored tofu lag.Generally, the polishing jig used in the present invention is a cylindrical one made of gold stripes made of brass or copper, or made of ceramic or the like. However, it is not limited to the material, size, and shape of the material, size, and shape of the abrasive M surface or flat surface, and when the conditions of the abrasive type and the abrasive jelly area, which will be described later, are satisfied.01
Diamond paste or DAl*Os is generally used as the abrasive agent used in the invention, but this is not limited to tf. There is no particular limitation on n, which is relatively concave than the shoulder circumference of the grab, but if optical transmission loss due to gaps in the fiber is taken into account, if the fiber core is 50 microns, it will be several ξ.
1) Desired 0-m*it to the enclosure, however, when the protrusion formed by Takashi is made of plastic or grabs each other, the fiber end faces of both plugs are attached to each other. It is possible to take any size r as long as the size is 5 degrees so that no shaft breakage occurs. In addition, since the diameter of the original fiber, which is normally used in non-inventions, is small, the tLv of the fiber axis and the rotation axis are equal (a), or even if the fiber diameter is small, the misfire ψ
Of course, the unexploded 1st man can be achieved based on the IJ'x and π drawings of Iryu Shio. It is an original fiber-shaped tag molded by a molding method and has an outer diameter of 3 mmφ, and at its center is an optical fiber 2 or a mediator. It is a cylindrical polishing jig manufactured by (+Ji N [fn K D abrasive 5
(diamond paste) is applied. Example 1 As shown in Fig. 1, the rotation axis 6b of the connector ply 10 and the rotation axis 6a of the polishing jig (outer diameter 1 mm) are relative to each other by 0.4 mm.
The grug 6, main body and polishing jig r were rotated in the opposite direction to polish to a depth of 3 μm. Figure 2 shows a schematic diagram of the plug end 1'full that was obtained, and Figure 6 shows a cross-sectional view of the plug tip. Measured at H-1, k and C are 1 μm, and as Tcoπgi red, it is 2μ+JJ between the fiber ends or from the unpolished part.Optical fiber coil lid plate r8! ? Ta. Eishing 2 Figure 4 shows Φ [Q relative to the rotating shaft of the machine tool (outer diameter 1ml11) 6ak fiber shaft, 41nllll
116bk for 7 ways on the outer periphery of the end face of the connector grab and abutment grip and parallel to the fiber axis as shown in the diagram.
The rotation axis of the optical fiber connector plug is the plug and 4
Example 1
Similarly, 2 ttm E from the fiber end face or unpolished part.
A former fiber optic tag meeting is held. Samurai et al.
A cross-sectional view of the tip of one lug is shown in Fig. 5 and Fig. 6 is incorrect. Embodiment 5 To avoid any misalignment, use a polishing jig (1 mm in diameter) at the center of the end face of the fiber axis and the protrusion at one point on the outer periphery of the plug end face and parallel to the front of the fiber I. - Recovery of the original fiber connector plug (as a skewer). Rotate the plug and polish it to a depth of 5 μm.
8 As in Example 1, the end of the spring bar [II] is removed from the unpolished part by 2
Figure 8: Optical fiber connector plug ゛γ and 7'r
, Q Samurai et al. γL'f (in Figure 8, between the plug ends,
Example 4 As shown in Figure 10, there is a drop in the ~I surface of the plug tip (Fig. 2).
Rotation III! lf 6 a k 0.4 mm relative to the fiber axis 21, filtered optical fiber connector 7"
Rotate the lug, abutment, and washer polishing jig once to a depth of 6 μm.
Optical fiber connector glove T Samurai k which has been polished and the fiber end face is 2 μm more protruding than the unpolished part as in Example 1.
Figure 11 shows a schematic diagram of the inserted plug end, and Figure 121A shows a cross section of the plug tip. Even after drawing and pulling the fiber more than 500 times, the damage to the fiber end face was less than fx, and the loss variation wJ was within 0.1 dB. As is clear from the above description, n is the rotational energy τ of the fiber end face from the polishing jig.
In order to receive the light efficiently, the fiber end face can be exposed to light by Shigeko Ishido, and even if the amount of light increases, By polishing the end of the fiber connector plug for a short time, the result is that the entry point of the original fiber connector plug and the fiber protruding from the fiber end point 5 are completely eliminated. yxrr, the connection loss is amazing even in the insertion/extraction test! I
11 is a small reliable sieve optical fiber connector or Samurai T
l, ft.

[Brief explanation of the drawing]

1.4.
Figures 7 and 10 are side sectional views showing the polishing situation, Section 2.5.8.
Fig. 11a is a full-circle diagram of the grinding surface, and Figs. 3.6 and 9.12 show the condition of the abrasive body. Explanation of symbols 1 Optical fiber connector plaque 2 Original fiber 5
Contact cutting 4 Polishing jig 5 Polishing ji11
6a 4ν is Maji's rotation axis 6
+1 = - Rotating axis of lid plate 7 Polished part 8 Optical fiber side story -10-

Claims (1)

[Scope of Claims] 1. The connecting end of the optical fiber is attached to the shaft core, and the connector flake end 11uTh: Used on a polishing jig whose polishing surface is a flat curve. In the partial end face polishing method of one lug of an optical fiber connector, (a) When both the plug and the polishing jig rotate and the axis of rotation of one lug becomes the fiber axis, A state in which the two axes are not coaxial, and in a lifting platform where one rotation axis of the plug is not the fiber axis, both rotation axes are the same and the rotation direction and rotation speed are not equal (b). When one of the plug and the polishing jig rotates, the lifting platform on which the plug rotates has a fiber shaft (b) that does not become a rotating axis, and when the polishing jig rotates, the bJ rotating axis of the polishing jig and A method for polishing a partial end face of an optical fiber connector glove, characterized in that the fiber axis is not coaxial with the fiber axis under expiration conditions.