SU1317387A1 - Rotary optical connector - Google Patents

Abstract

The invention relates to an optical instrument making and allows l 4 to reduce the size and increase the reliability of the device. Fibrous fibers 6 and 12 are laid in parallel, and the fibers 8 and 14 along the axis of the housing. The ends inclined to the fiber axis are the sources 5 and 1I and the receivers 7 and 13 of the radiation. The opposite ends of the optical fibers 6 and 12 are made beveled for optical coupling with the ends of the optical fibers 8 and 14 of the receivers. Placing around the receiving fiber several radiating with beveled ends, you can implement a rotating mixer. 3 il. sl 00 00 00 ///////////// .1

Description

ten

15

20

25

11317387

This invention relates to multichannel fiber optic rotatable connectors.

The aim of the invention is to reduce the size and increase the reliability of the connector.

Figure 1 shows the proposed structure, General view; in fig. 2 - a bird's scheme of the operation of the pre-proposed device; Fig. 3 is a schematic diagram in conjunction with the optical wocon.

The proposed device (Fig. 1) consists of a rotating 1 and a non-rotating 2 parts and an underside 3. The rotating part 1 of the device consists of the orbit 4, the radiation source 5, the bird fiber 6, which has a beveled end on the opposite of the radiation source 5 glued by this end into the opening of the housing 4; a radiation receiver 7 and an optical fiber 8 having at the opposite end of the radiation receiver a straight edge and glued with this end into the opening of the housing 4 so that the optical axis of the fiber 8 coincides with the axis 9 of rotation of the rotating part 1.

The non-rotating part 2 consists of a body 10, a light source 11, an optical fiber 12, having an oblique end on the opposite side from the radiation source 11 and glued by this end into the opening of the body 10; the radiation receiver 13, the optical fiber 14, having at the end opposite to the radiation receiver 13, a right-hand end and glued by this end into the opening of the housing 10 so that the optical axis of the fiber coincides with the axis 9 of rotation of the rotating part 1.

Rotating and non-rotating parts may have additional connecting fibers 15. and 16 with a beveled end (Fig. 1 and 3) ..

The device works as follows.

The light energy from the radiation source 5 is introduced into the optical fiber 6, exits from the oblique end of this fiber at an angle of 0 (Fig. 2) and enters the optical fiber 14, through which it is transmitted to the receiver 13.

At the same time, the light energy from the radiation source 11 is introduced into the optical fiber 12, exits from

thirty

KO lo no pr

from take and

Na ya you

gd

with

35

40

45

50

55

d

l w in to p h in in

t gl i and k t p about with s n

The fiber end of this fiber is at an angle of 9 and enters the optical fiber 8, through which it is transmitted to the radiation receiver 7.

When rotating the rotating part 1 with respect to the non-rotating part 2, the mutual position of the fibers 6, 14 and 8, 12 remains unchanged.

For a fiber with a numerical aperture NA of 0.18 with a core refractive index of 1.4694, the maximum bevel angle of the radiator face at which the condition

e, + -9 + id 90 °,

where lift is the aperture angle;

c is the beam deflection angle;

with bevel angle; constitutes

  With sin

sin (90 -arcsinNA)

42

When

 e

with max

distance S between

the ends of the cases are minimal.

Placing around the receiving fiber several radiating with beveled ends makes it possible to realize a rotating mixer. Laying the fibers close together allows the body cross-section to be reduced. The device is highly reliable. It does not contain additional energy converters when rotating the coupling between two fiber-optic taps.

Formula inventions

A rotating optical connector containing two korggus-mounted coaxially with a gap between adjacent ends with the possibility of relative rotation around an axis, a radiation receiver and at least one radiation source mounted on each of the connected ends so that each source is on one end optically coupled to the receiver at the other end, the receivers being installed along the axis of the shells, and the sources outside the axis of the shells ,. characterized by the fact that, in order to reduce overall dimensions and maintain reliability, the indicated sources and receivers are made in the shape of the ends of fiber optics 31173874

In this case, the optical fibers in each source correlation with the receiver receptacles near the end face are arranged with the parallel ends of the optical fibers of the sources, are made to the axis of the housing, and for the optical, they are inclined to the axis of the optical fibers.

cpiiaZ

(rig. 3

Editor T. Parfenova

Compiled by I. Aleksandrov

Tehred L. Oliynyk Proofreader L. Pilipenko

Order 2419/41 Circulation 52 Subscription

VNIIPI USSR State Committee

for inventions and discoveries 113035, Moscow, Zh-35, Raushsk nab., 4/5

Production and printing company, Uzhgorod, st. Project, 4

Claims (1)

Claim A rotating optical connector comprising two housings mounted coaxially with a gap between the mating ends with the possibility of relative rotation around the axis, a radiation receiver and at least one radiation source mounted on each of the mated ends so that each source on one end is optically coupled to the receiver at the other end, and the receivers are installed along the axis of the buildings, and the sources are outside the axis of the buildings. characterized in that, in order to reduce dimensions and increase reliability, these sources and receivers are made in the form of ends of fiber optic fibers, moreover, the fibers in each housing near the end are parallel to the axis of the housing, and for optical pairing of sources with receivers, the ends of the optical fibers of the sources are made inclined to the axis of the optical fibers.