CN103457662A - Optical Fiber Transmission System - Google Patents

Abstract

The invention relates to an optical fiber transmission system comprising an optical signal transmitting source, a first optical fiber, a plurality of second optical fibers and a plurality of signal receiving device. Each signal receiving device comprises an input end, an output end and an optical receiving terminal. The input end of one of the signal receiving devices is connected with the optical signal transmitting source through the first optical fiber. Each second optical fiber is used for connecting the output end of one of two adjacent signal receiving devices and the input end of the other of the two adjacent signal receiving devices. Each signal receiving device further comprises a control module, a third optical fiber, a fourth optical fiber and a photoelectric conversion module, wherein the photoelectric conversion module is connected with the control module through the fourth optical fiber, the control module is connected with the input end and used for receiving optical signals from the first optical fiber or the second optical fibers, and the control module is connected with the optical receiving terminal through the third optical fiber.

Description

Optical Fiber Transmission System

technical field

The invention relates to an optical fiber transmission system, in particular to a serial connection type optical fiber transmission system.

Background technique

At present, the connection mode of the optical fiber transmission system is mainly radial. The radial optical fiber transmission system means that there is a conversion device between the light emitting source and the receiving terminal. The light emitting source transmits the optical signal to the conversion device through the optical fiber. The terminals are respectively connected to the conversion device through a plurality of wires. However, this cannot fully reflect the high bandwidth and long-distance transmission characteristics of the optical fiber.

Contents of the invention

In view of the above, it is necessary to provide an optical fiber transmission system that can fully reflect the high bandwidth and long-distance transmission characteristics of optical fibers.

An optical fiber transmission system includes: an optical signal transmitting source, a first optical fiber, a plurality of second optical fibers and a plurality of signal receiving devices. Each signal receiving device of the plurality of signal receiving devices includes an input terminal, an output terminal and a light receiving terminal. The input end of one of the signal receiving devices of the plurality of signal receiving devices is connected to the optical signal transmitting source through the first optical fiber, and the second optical fiber is used to connect the output of one of the two adjacent signal receiving devices terminal and the input terminal of another signal receiving device. Each signal receiving device also includes a control module, a third optical fiber, a fourth optical fiber and a photoelectric conversion module, the photoelectric conversion module and the control module are connected through the fourth optical fiber, the control module and the input The end connection is used for receiving the optical signal from the first optical fiber or the second optical fiber, and the optical signal includes a first part of the optical signal and a second part of the optical signal. The photoelectric conversion module is connected to the output end, the light receiving terminal is connected to the control module through the third optical fiber, and the control module is used to send the first part of the optical signal to the light receiving terminal through the third optical fiber and send the The second part of the optical signal is sent to the photoelectric conversion module through the fourth optical fiber, and the photoelectric conversion module is used for amplifying and sorting the second part of the optical signal and sending it to the second optical fiber.

Compared with the existing technology, the above optical fiber transmission system splits the optical signal through the control module and the photoelectric conversion module amplifies and reforms the split signal, and can connect more optical receiving terminals in series, reflecting the high bandwidth and long-distance of the optical fiber. Features of distance teleportation.

Description of drawings

Fig. 1 is a schematic diagram of an optical fiber transmission system according to an embodiment of the present invention.

Description of main component symbols

Optical Fiber Transmission System 100 optical signal source 10 first fiber 20 second fiber 30 signal receiving device 40 first signal receiving device 41 second signal receiving device 43 third signal receiving device 45 input 402 output 404 control module 42 third fiber 44 fourth fiber 48 Photoelectric conversion module 46 photoelectric converter 460 wire 461 Electro-optical converter 462 optical receiving terminal 50 photoelectric conversion unit 52

The following specific embodiments will further illustrate the present invention in conjunction with the above-mentioned drawings.

Detailed ways

The optical fiber transmission system of the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments.

Referring to FIG. 1 , an optical fiber transmission system 100 according to an embodiment of the present invention includes: an optical signal transmitting source 10 , a first optical fiber 20 , a plurality of second optical fibers 30 and a plurality of signal receiving devices 40 . In this embodiment, the first three signal receiving devices 40 of the plurality of signal receiving devices 40 are used to illustrate the present invention, that is, the first signal receiving device 41 , the second signal receiving device 43 and the third signal receiving device 45 . In this embodiment, the optical signal emitting source 10 is a laser diode, and in other embodiments, the optical signal emitting source 10 may also be other types of optical signal emitting sources.

The first signal receiving device 41 , the second signal receiving device 43 and the third signal receiving device 45 each include an input terminal 402 , an output terminal 404 and a light receiving terminal 50 .

The input end 402 of the first signal receiving device 41 is connected to the optical signal transmitting source 10 through the first optical fiber 20, and the second optical fiber 30 is used to connect the output of one signal receiving device in two adjacent signal receiving devices 40 terminal and the input terminal of another signal receiving device. In this embodiment, the second optical fiber 30 connects the output end 404 of the first signal receiving device 41 with the input end 402 of the second signal receiving device 43 and connects the output end 404 of the second signal receiving device 43 with the third signal The input terminal 402 of the receiving device 45 .

The first signal receiving device 41 , the second signal receiving device 43 and the third signal receiving device 45 each further include a control module 42 , a third optical fiber 44 , a fourth optical fiber 48 and a photoelectric conversion module 46 . Each photoelectric conversion module 46 includes a photoelectric converter 460 , an electro-optical converter 462 and wires 461 . The photoelectric converter 460 is electrically connected to the electro-optical converter 462 through a wire 461 .

For each signal receiving device 40, the control module 42 is connected to the input end 402, the photoelectric conversion module 46 is connected to the output end 404, and the light receiving terminal 50 is connected to the control module 42 through the third optical fiber 44 , the photoelectric converter 460 in the photoelectric conversion module 46 is connected to the control module 42 through the fourth optical fiber 48 . The light-receiving terminals 50 can all be terminals of the same type, such as DVD players, display terminals or speaker equipment, etc., or terminals of different types, such as a DVD player, a display terminal and/or Or a speaker device, etc.

The optical signals transmitted through the first optical fiber 20 or the second optical fiber 30 both include a first part of the optical signal and a second part of the optical signal. The control module 42 includes a controller and a signal analyzer (not shown). The signal analyzer is connected to the controller. The receiving address of each optical receiving terminal 50 is preset in the signal analyzer. The control module 42 is used for sending the first part of the optical signal to the optical receiving terminal 50 through the third optical fiber 44 and sending the second part of the optical signal to the photoelectric conversion module 46 through the fourth optical fiber 48 . The light receiving terminal 50 includes a photoelectric conversion unit 52 . The photoelectric conversion unit 52 is used for converting the first part of the optical signal into an electrical signal.

When the optical fiber transmission system 100 works, the optical signal sent by the optical signal transmitting source 10 is transmitted to the input end 402 of the first signal receiving device 41 through the first optical fiber 20, and then enters the control module 42 of the first signal receiving device 41 . The optical signal includes address information of the first signal receiving device 41 , the second signal receiving device 43 and the third signal receiving device 45 . The signal analyzer in the control module 42 of the first signal receiving device 41 receives the optical signal and analyzes the address information in the optical signal to compare with the receiving address of the optical receiving terminal 50 of the first signal receiving device 41 , and finally obtain a part of the optical signal that matches the receiving address to form the first part of the optical signal, and the signal analyzer transmits the first part of the optical signal through the third optical fiber 44 into the light that enters the first signal receiving device 41 The receiving terminal 50; and another part of the optical signal that does not match the receiving address forms the second part of the optical signal, the signal analyzer sends an activation signal to the controller, and the controller transmits the second part of the optical signal into the The control module 42 is connected to the photoelectric conversion module 46 .

The photoelectric converter 460 in the photoelectric conversion module 46 converts the received second part of the optical signal into an electrical signal, which is transmitted to the electro-optic converter 462 in the photoelectric conversion module 46 through a wire 461, and the electro-optic converter 462 The electrical signal is converted into an optical signal, and then transmitted to the second optical fiber 30 through the output end 404 of the first signal receiving device 41, thereby completing the amplification and integration of the second part of the optical signal to supplement the signal transmitted to the first The light energy lost by the light receiving terminal 50 of the signal receiving device 41 . The optical signal is reformed by the photoelectric conversion module 46 and transmitted to the next signal receiving device, and so on.

The signal analyzer is also preset with the format information of each optical receiving terminal 50 and receives the optical signal transmitted by the first optical fiber 20 or the second optical fiber 30 and analyzes its format information. The first part of the optical signal is related to the first signal The part of the optical signal that matches the format information of the optical receiving terminal 50 of the receiving device 41 will be transmitted to the optical receiving terminal 50 of the first signal receiving device 41 through the third optical fiber 44; For another part of the optical signal that does not conform to the format information of the optical receiving terminal 50 of the signal receiving device 41, the signal analyzer sends an activation signal to the controller, and the second part of the optical signal is transmitted to the control module through the controller 42 connected to the photoelectric conversion module 46.

The above-mentioned optical fiber transmission system amplifies and reforms the split optical signal through the optical splitting and photoelectric conversion module of the control module, and can connect more optical receiving terminals in series, reflecting the high bandwidth and long-distance transmission characteristics of optical fiber.

In addition, those skilled in the art can also make other changes within the spirit of the present invention. Of course, these changes made according to the spirit of the present invention should be included in the scope of protection claimed by the present invention.

Claims (6)

1. a fiber optic transmission system, it comprises: the light signal emission source, one first optical fiber, a plurality of the second optical fiber and a plurality of signal receiving device, each signal receiving device of the plurality of signal receiving device comprises an input, one output and a light-receiving terminal, the input of one of them signal receiving device of the plurality of signal receiving device is connected with this light signal emission source by this first optical fiber, this second optical fiber is for the output of a signal receiving device that connects adjacent two signal receiving devices and the input of another signal receiving device, it is characterized in that: this each signal receiving device also comprises a control module, one the 3rd optical fiber, one the 4th optical fiber and a photoelectric conversion module, between this photoelectric conversion module and this control module, by the 4th optical fiber, be connected, this control module is connected and comes from for reception the light signal of this first optical fiber or this second optical fiber with this input, this light signal comprises first's light signal and second portion light signal, this photoelectric conversion module is connected with this output, this light-receiving terminal is connected with this control module by the 3rd optical fiber, this control module is for being sent to this first's light signal this light-receiving terminal and this second portion light signal is sent to this photoelectric conversion module by the 4th optical fiber by the 3rd optical fiber, this photoelectric conversion module is sent to this second optical fiber after this second portion optical signal amplification is integrated.

2. fiber optic transmission system as claimed in claim 1, it is characterized in that: this photoelectric conversion module comprises electrical to optical converter, optical-electrical converter and wire, between this electrical to optical converter and this optical-electrical converter, by this wire, be electrically connected to, this optical-electrical converter is connected with this control module by the 4th optical fiber.

3. fiber optic transmission system as claimed in claim 1, it is characterized in that: this each control module comprises controller and signal analyzer, this signal analyzer is connected with this controller, be preset with the receiver address of each light-receiving terminal in this signal analyzer and, for receiving from this light signal of this first optical fiber or the second Optical Fiber Transmission and analyzing the address information of this light signal, the part optical signals that the receiver address that this first's light signal is the light-receiving terminal with corresponding is consistent also enters this corresponding light-receiving terminal by the 3rd Optical Fiber Transmission; The incongruent another part light signal of receiver address that this second portion light signal is the light-receiving terminal corresponding with this, this signal analyzer sends enabling signal to this controller, by this controller, this second portion optical signal transmission is given to this photoelectric conversion module be connected with this control module.

4. fiber optic transmission system as claimed in claim 3, it is characterized in that: also be preset with the format information of each light-receiving terminal in this signal analyzer and for this light signal that receives this first optical fiber or this second Optical Fiber Transmission the format information of analyzing this light signal, a part of light signal that the format information that this first's light signal is the light-receiving terminal with corresponding is consistent, this part optical signals is directly passed through the 3rd Optical Fiber Transmission to this corresponding light-receiving terminal; This second portion light signal is the incongruent another part light signal of the form that prestores of the light-receiving terminal corresponding with this, this signal analyzer sends enabling signal to this controller, by this controller, this second portion optical signal transmission is given to this photoelectric conversion module be connected with this control module.

5. fiber optic transmission system as claimed in claim 1, it is characterized in that: this light-receiving terminal also comprises a photoelectric conversion unit, this photoelectric conversion unit is for being converted to the signal of telecommunication by this first's light signal.

6. fiber optic transmission system as claimed in claim 1, it is characterized in that: this light-receiving terminal is DVD player, display terminal and/or sound-box device.

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