WO2015026010A1

WO2015026010A1 - Optical switch

Info

Publication number: WO2015026010A1
Application number: PCT/KR2013/010938
Authority: WO
Inventors: 최영복; 강창호; 이광훈
Original assignee: (주)파이버피아
Priority date: 2013-08-19
Filing date: 2013-11-28
Publication date: 2015-02-26
Also published as: KR20150020808A; KR101504267B1

Abstract

The present invention relates to an optical switch. The optical switch comprises: a body of a cylindrical shape having a plurality of optical signal output holes formed as through-holes in the outer periphery thereof; a screw disposed in a lengthwise direction of the body within the body and having a rotor; a first motor disposed inside the body and using a source of power transferred from outside to generate motive power that moves the screw linearly; a second motor disposed inside the body and using a source of power transferred from outside to generate motive power that rotates the screw; and a control unit disposed inside the body and determining through which of the optical signal output holes from among the plurality of optical signal output holes to output an optical signal received from outside, wherein the optical signal received from outside is switched between the plurality of optical signal output holes by means of the rotor. Thus, an optical signal can be output through a plurality of channels without optical loss, which has the effect of improving optical communication efficiency.

Description

Optical switch

The present invention relates to an optical switch.

In general, in order to transmit optical signals to a plurality of optical subscribers in an optical transmission system, optical signals received in one optical path are divided into a plurality of channels to transmit optical signals of each channel to each optical subscriber.

However, in the conventional optical signal splitting method, a cascade method has a problem in that optical signal loss occurs in the process of dividing the optical signal, and the optical loss increases as the number of channels increases.

Korean Patent Laid-Open Publication No. 10-0262346, which proposes a mechanical optical switch to overcome the problems of the cascade-type optical switching, includes a linker and a motor to selectively measure several optical elements and a target under a single optical measuring device. can do.

However, such a conventional optical switch has a problem in that the number of channels capable of switching an optical signal is limited so that it cannot be switched to many channels.

An object of the present invention is to switch an optical signal to a plurality of channels.

Another object of the present invention is to improve the switching efficiency of an optical signal.

An optical switch according to an embodiment of the present invention has a cylindrical shape and a body having an optical signal output hole which is a plurality of through-holes formed on the outer periphery, a screw located within the body in the longitudinal direction of the body, the rotor having a rotor A first motor positioned inside the body and generating power to linearly move the screw using power received from the outside; and a power located inside the body and rotating the screw using power received from the outside. A second motor generating a second motor, and a control unit which is located inside the body and determines which optical signal output hole among the plurality of optical signal output holes to output the optical signal received from the outside; An arc is switched to the plurality of optical signal output holes through the rotor.

The optical signal received from the outside is preferably received from the optical loss meter.

According to this feature, the screw and the rotor are moved in accordance with the driving of the first motor and the second motor, respectively, and the optical core wire introduced into the optical switch through the second flange of the plurality of optical signal output holes formed in the It is located corresponding to one optical signal output hole. Accordingly, the optical signal received from the outside can perform accurate optical signal switching located at any point of the plurality of optical signal output holes, and can provide a service to a plurality of optical subscribers using one optical switch. There is an effect.

1 is an exploded perspective view of an optical switch according to an embodiment of the present invention.

2 is a perspective view showing the inside of an optical switch according to an embodiment of the present invention.

DETAILED DESCRIPTION Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings so that those skilled in the art may easily implement the present invention. As those skilled in the art would realize, the described embodiments may be modified in various different ways, all without departing from the spirit or scope of the present invention. In the drawings, parts irrelevant to the description are omitted in order to clearly describe the present invention, and like reference numerals designate like parts throughout the specification.

Next, an optical switch according to an exemplary embodiment of the present invention will be described with reference to the accompanying drawings.

First, referring to Figures 1 and 2, the optical switch according to an embodiment of the present invention will be described in detail.

1 and 2, the optical switch according to an embodiment of the present invention is the amount of the body 10, the body 10 having a plurality of optical signal output holes 11 on the outer periphery of the cylindrical shape First and

second flanges

20 and 21 located at the ends, and first and

second motors

100 and 200, screws 210, control unit 300, and rotor located inside the body 10, respectively. 250 and the like.

1, the lower fixing bracket 213 is provided with a plurality of through holes, and one end thereof has a curved surface corresponding to the outer circumference of the body 10. Has

The plurality of optical signal output holes 11 formed in the body 10 are through-holes through which optical signals output from the body 10 are output. The optical signal output therein can be drawn into the optical core line.

In this case, since the plurality of through holes formed in the lower fixing bracket 213 correspond to the through holes formed along the longitudinal direction of the body 10 at the outer circumference of the body 10, the lower fixing bracket 213 is the body 10. It is fixed to one side of the).

In one example, the lower fixing bracket 213 is coupled to the body 10 by passing through the through holes formed in the lower fixing bracket 213 and the through holes formed along the longitudinal direction of the body 10, respectively. Preferably, the plurality of fixing portions may be screws.

The guide rail 212 is positioned above the lower fixing bracket 213 and linearly moves along the length direction of the guide rail 212 and the lower fixing bracket 213 by the power applied from the outside.

The ball bush block 211 is connected to the upper portion of the guide rail 212, is provided through the screw 210, and is connected to the second motor 200 at one end thereof.

In one example, the screw 210 is moved along the longitudinal direction of the guide rail 212 by the ball bushing block 211 by a linear force applied from the outside, within the angle range set by the rotational force applied from the outside Rotate on

The screw 210 is preferably provided with a ball (ball) at one end.

The second motor 200 generates power by using the power received from the outside, and rotates within an angle range set by the generated power.

The body fixing bracket 2110 is positioned below the second motor 200, is located on the side of the ball bushing block 211, and is fixedly coupled to the lower fixing bracket 213.

At this time, the rotor 250 is connected to one end of the second motor 200 coupled to the body fixing bracket 2110 to rotate in accordance with the rotation of the second motor 200, both sides of the rotor 250 The rotation sensor dog 421 is positioned within the rotation angle within the range set by each.

The ball block 2101 is also located in connection with one end of the screw 210.

The two second sensors 420 are rotation detection sensors for detecting rotation of the rotor 250 and are connected to the rotation sensor bracket 4201.

In addition, the bearing 500 is coupled to the screw 210 for smooth rotation of the screw 210 and is located inside the bearing housing 502.

The bearing housing 502 includes a bearing 500 therein, is coupled to the bearing cap 501, and is fixedly coupled to an upper portion of the lower fixing bracket 213.

In this case, a first sensor 410, which is a linear motion detection sensor for detecting a linear motion of the bearing housing 502, is positioned above the bearing housing 502.

In this case, the first coupling 120 connects the first motor 100 and the screw 210.

The first motor 100 generates power by using the power received from the outside, moves linearly with the generated power, and is connected to the first motor bracket 101 and positioned.

In addition, the controller 300 may be a PCB module and may be connected to the upper portion of the PCB bracket 310. The controller 300 controls the position of the rotor 250 by controlling the first motor 100 and the second motor 200.

The optical switch of the present invention having such a structure includes an OTDR connecting portion and a power connecting portion in the second flange 21 to receive an optical signal from the OTDR connecting portion and receive power from the power connecting portion.

Next, with reference to Figure 2 will be described the operation of the optical switch according to an embodiment of the present invention.

First, the first motor 100, the second motor 200, and the controller 300 are driven by the power received from the outside.

The controller 300 determines which position the optical signal received from the outside is output to the optical signal output hole 11, and outputs a driving signal for driving the first motor 100 and the second motor 200. Transfer to the first and second motors (100, 200), respectively.

The first and

second motors

100 and 200 move linearly and rotationally in accordance with the signals received from the controller 300 to move the rotor 250 to a position corresponding to the optical signal output hole 11. Move it.

In this case, when the optical signal is sequentially output to all the optical signal output holes 11, the controller 300 controls the first and

second motors

100 and 200 to sequentially move the rotor 250. Output an optical signal.

As such, by driving the first and

second motors

100 and 200, the optical signal through the rotor 250 is output to the plurality of optical signal output holes 11, thereby allowing a plurality of channels without optical loss. Since the optical signal can be output, the optical communication efficiency is improved.

Although the embodiments of the present invention have been described in detail above, the scope of the present invention is not limited thereto, and various modifications and improvements of those skilled in the art using the basic concepts of the present invention defined in the following claims are also provided. It belongs to the scope of rights.

Claims

A body having a cylindrical shape and having an optical signal output hole which is a plurality of through holes formed on an outer circumference thereof;

Located in the longitudinal direction of the body in the body, the screw having a rotor,

A first motor located inside the body and generating power to linearly move the screw using power received from the outside;

A second motor located inside the body and generating power for rotating the screw using power received from the outside; and

A control unit located inside the body and determining which optical signal output hole among the plurality of optical signal output holes to output the optical signal received from the outside

Including

The optical switch transmitted from the outside is switched to the plurality of optical signal output hole through the rotor.
In claim 1,

The optical signal transmitted from the outside is received from an optical time domain refloectome (OTDR).