CN211741639U - RJ45 interface active optical cable - Google Patents

Abstract

The utility model discloses an active optical cable with RJ45 interfaces, which comprises an optical cable and RJ45 interfaces connected with the two ends of the optical cable; one RJ45 interface of the RJ45 interfaces at the two ends is a receiving end or a transmitting end; the RJ45 interface all includes a casing, be equipped with circuit substrate, optical assembly on the casing, optical assembly and circuit substrate electric connection, and optical assembly includes optical connector, optic fibre plug-in components.

Description

RJ45 interface active optical cable

Technical Field

The utility model relates to a data transmission technical field specifically is a RJ45 interface active optical cable.

Background

Active Optical cables (aocs) refer to communication cables that convert electrical signals into Optical signals and then convert Optical signals into electrical signals during communication, and Optical transceivers at two ends of the Optical cables provide Optical-to-electrical conversion and Optical transmission functions.

In the big data era, high-density and high-bandwidth applications are increasing, and at the moment, a passive optical cable or a cable system based on a copper wire is very popular. In order to ensure the stability and flexible applicability of transmission, users urgently need a novel product as a main transmission medium of a high-performance computing and data center, under the condition, an active optical cable product is produced, and under the condition of combining with an RJ45 interface, the novel product is used for solving the technical problems of short transmission distance, low transmission rate and high power consumption in the current data transmission field.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

Not enough to prior art, the utility model provides an active optical cable of RJ45 interface has solved the technical problem that the data transmission distance that now uses is short, transmission rate is low, the high-power consumption.

(II) technical scheme

In order to achieve the above object, the utility model provides a following technical scheme: an RJ45 interface active optical cable comprises an optical cable, RJ45 interfaces connected with two ends of the optical cable; any RJ45 interface of the RJ45 interfaces at the two ends is a receiving end or a transmitting end; the RJ45 interfaces respectively comprise a shell, a circuit substrate and an optical assembly are arranged on the shell, the optical assembly is electrically connected with the circuit substrate, and the optical assembly comprises an optical connector, an optical fiber and an optical fiber plug-in; when the circuit board sends an electrical signal to the optical connector via the optical fiber or the plug-in, the electrical signal is processed by the optical connector, converted into an optical signal, and then transmitted via the optical cable.

Preferably, the optical connector comprises an MCU chip, a plurality of light emitting laser wafers, and a photodetector; wherein the plurality of light-emitting laser wafers are provided as a plurality of laser generators.

Preferably, one side of the optical connector is fixedly connected with an optical fiber plug-in unit, and one side of the optical fiber plug-in unit is movably connected with an optical fiber.

Preferably, the bottom of the optical connector is located at the top of one of the light emitting laser wafers, and a sending end inlet is further arranged; and a sending end direction conversion device is fixedly arranged in the optical connector and positioned at the top of the sending end inlet.

Preferably, a sending end outlet is formed in the top of the optical connector and on one side of the sending end direction conversion device.

Preferably, a receiving end inlet is formed on the right side of the optical connector and on the right side of the optical fiber.

Preferably, a receiving end direction switching device is fixedly mounted inside the optical connector and on the right side of the receiving end entrance.

Preferably, the bottom of the optical connector and the bottom of the receiving end direction conversion device are provided with receiving end outlets.

Preferably, the photoelectric detector is fixedly installed at the top of the MCU chip and at the bottom of the outlet of the receiving end.

Preferably, the right side of the optical connector assembly and the right side of the transmitting end outlet are fixedly connected with a transmitting end limiting piece.

Preferably, the transmitting end direction conversion device and the receiving end direction conversion device are both provided with reflecting surfaces, wherein the reflecting angle is 90 degrees.

(III) advantageous effects

The utility model discloses the following technological effect has:

(1) and long transmission distance: the transmission through the optical cable can be 300 meters, 1 kilometer, 10 kilometers or even 20 kilometers, and when data signals are transmitted, photoelectric conversion is carried out on two ends of the optical cable through RJ45 interfaces, and the optical signal transmission is changed, so that ultra-long distance transmission which cannot be met by a copper wire technology is realized; in addition by having the following characteristics compared to electrical communication:

a. the frequency (about 300THz) of the optical fiber communication carrier (near infrared light) is 3 orders of magnitude higher than the frequency (3-300 Hz) of the electric communication carrier, and the transmission capacity is large;

b. the optical fiber transmission signal cable has lower high-frequency transmission loss than the cable, and the unrepeatered transmission distance can reach 10km at the working wavelength of 0.85 mu m;

(2) and engineering wiring is facilitated, and the optical fiber is much thinner than a copper wire and is light. Taking an 8-core LAP unit structure optical fiber as an example, the weight is only about 0.42kg/m and the diameter is about 21mm, while an 8-core standard coaxial cable is about 6.3kg/m and the diameter is about 47 mm;

(3) the installation is easy, additional action is not required, the connection mode with each equipment is completely consistent with the existing copper wire RJ45 network cable, and the copper wire RJ45 network cable can be directly replaced for use.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention;

fig. 2 is an enlarged schematic diagram of a half-section of a portion a of the RJ45 interface according to the present invention;

FIG. 3 is an enlarged view of the portion B of the optical connector in the portion A of the present invention;

FIG. 4 is a schematic diagram of the basic circuit and optical components of the present invention;

fig. 5 is an enlarged schematic view of the transmitting end of the C portion of the circuit substrate and the optical module according to the present invention;

fig. 6 is an enlarged schematic view of the receiving end of the C portion in the circuit board and the optical assembly of the present invention.

The reference numbers in the figures are: the optical fiber connector comprises a shell 1, an optical fiber 2, an optical connector 3, an optical connector 4, a circuit substrate 5, a positioning column 6, a fixing buckle 7, a processing chip 8, a light-emitting laser wafer 9, a photoelectric detector 10, an optical fiber plug 11, an optical fiber 12, a transmitting end inlet 13, a transmitting end direction conversion device 14, a transmitting end outlet 15, a transmitting end limiting part 16, a receiving end limiting part 17, a receiving end inlet 18, a receiving end direction conversion device 19 and a receiving end outlet 20.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

As shown in fig. 1 to 6, the utility model provides a technical solution: an RJ45 interface active optical cable comprises an optical cable and RJ45 interfaces connected with two ends of the optical cable; any one RJ45 interface of the RJ45 interfaces at the two ends is a receiving end and a transmitting end; the RJ45 interfaces respectively comprise a shell 1, wherein a circuit substrate 5 and an optical assembly are arranged on the shell 1, the optical assembly is electrically connected with the circuit substrate 5, and the optical assembly comprises an optical connector 3, an optical connector 4, an optical fiber 2 and an optical fiber plug-in 11; when the circuit board 5 sends an electrical signal to the optical connector 4 via the optical fiber 2 or the plug, the electrical signal is processed by the optical connector 4, converted into an optical signal, and then transmitted via the optical cable.

The optical connector 4 comprises an MCU chip, a plurality of light-emitting laser wafers 9 and a photoelectric detector 10; wherein the plurality of light emitting laser dies 9 are provided as a plurality of laser generators;

at least one of the plurality of light-emitting laser elements 9 is a semiconductor laser, such as a VCSEL vertical cavity surface laser, a DFB distributed feedback laser, and the like, without limitation of wavelength, single mode or multimode, at least one of the photodetectors 10 is provided, corresponding to the wavelength of the laser at the transmitting end, and the distance between the edge of any one of the light-emitting laser elements 9 or the photodetector 10 is less than five hundred micrometers, less than two hundred and five micrometers, or even zero.

One side of the optical connection plug-in 3 is fixedly connected with an optical fiber plug-in 11, and one side of the optical fiber plug-in 11 is movably connected with an optical fiber 2;

the optical fibers 2 adopt multi-mode and multi-core transmission, and the optical fibers 2 of the internal mechanisms of the transmitting end substrate and the receiving end substrate are mutually symmetrical.

The bottom of the optical connector 4 is positioned at the top of one of the light-emitting laser wafers 9, and a sending end inlet 13 is further arranged; a sender direction switching device 14 is fixedly mounted inside the optical connector 4 and on the top of the sender inlet 13.

A sending end outlet 15 is formed at the top of the optical connector 4 and on one side of the sending end direction conversion device 14.

The top of the right end of the optical fiber 12 is movably connected with a receiving end limiting part 17, and a receiving end inlet 18 is arranged on the right side of the optical connector 4 and on the right side of the optical fiber.

A receiving-end direction switching device 19 is fixedly mounted inside the optical connector 4 and on the right side of the receiving-end entrance 18.

The bottom of the optical connector 4, which is located at the bottom of the receiving-end direction switching device 19, is provided with a receiving-end outlet 20.

And the photoelectric detector 10 is fixedly arranged at the top of the MCU chip and at the bottom of the receiving end outlet 20.

And a transmitting end limiting piece 16 is fixedly connected to the right side of the optical connector 3 and is positioned at the right side of the transmitting end outlet 15.

The transmitting end direction conversion device 14 and the receiving end direction conversion device 19 are both provided with reflecting surfaces, wherein the reflecting angle is 90 degrees.

Example (b):

the working principle of the invention is as follows:

(1) when the circuit substrate 5 receives the electrical signal, the circuit substrate 5 sends the electrical signal to the light-emitting laser wafer 9, the light-emitting laser wafer 9 converts the electrical signal into an optical signal, and the optical signal is firstly diffracted in a free space (generally, air);

(2) then, the optical signal reaches the optical connector 4, the transmitting-end inlet 13 of the optical connector 4 performs space allocation of energy again on the optical signal (generally, the energy concentrated at the center is approximately evenly distributed in a set area first), if necessary, the energy transmission direction of the optical signal needs to be adjusted, the optical connector 4 changes the direction of most of the energy (generally more than 90%) of the optical signal by 90 degrees through the receiving-end direction conversion device, and a small part of the energy is lost when being transmitted out of the air through the optical connector 4;

(3) finally, the optical connector 4 performs spatial distribution of energy again at the receiving-end outlet 20, so that the outgoing optical signal is free to diffract in free space (generally air) again, and finally reaches the designated optical fiber 12 (also referred to as optical fiber 2), a part of energy (controllable in magnitude) of the optical signal will be coupled into the core of the optical fiber 12 (also referred to as optical fiber 2) and thus transmitted in the optical fiber 12 (also referred to as optical fiber 2), and a part of energy (controllable in magnitude) of the optical signal will be coupled into the cladding of the optical fiber 12 (also referred to as optical fiber 2) and then further lost in the outer surface layer of the optical fiber 12 (also referred to as optical fiber 2) and air;

(4) transmitting an optical signal transmitted from a transmitting end through a receiving end optical fiber 12 (also referred to as an optical fiber 2), wherein the optical signal is diffracted in a free space (generally air) and then reaches an optical connector 4, the optical connector 4 performs energy redistribution on the optical signal at a transmitting end inlet 13 (generally, energy concentrated at the center is generally and evenly distributed in a set area), and if necessary, the energy transmission direction of the optical signal needs to be adjusted;

(5) the optical connector 4 changes the direction of most energy (generally more than 90%) of the optical signal by 90 degrees again, a small part of energy is lost when being transmitted out of the air through the optical connector 4, and finally, the optical connector 4 performs spatial distribution of energy again at the outlet 15 of the transmitting end, so that the emitted optical signal is free to diffract in free space (generally air) again;

(6) and finally reaches the photodetector 10, the photodetector 10 converts a part of the energy (controllable in magnitude) of the optical signal to be detected by the photodetector 10, and converts the optical signal into an electrical signal, which is transmitted through the circuit substrate 5.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims (10)

1. An RJ45 interface active optical cable which characterized in that: the system comprises an optical cable and RJ45 interfaces connected with two ends of the optical cable; one RJ45 interface of the RJ45 interfaces at the two ends is a receiving end or a transmitting end; the RJ45 interfaces respectively comprise a shell, a circuit substrate and an optical assembly are arranged on the shell, the optical assembly is electrically connected with the circuit substrate, and the optical assembly comprises an optical connector, an optical fiber and an optical fiber plug-in; when the circuit board sends an electrical signal to the optical connector via the optical fiber or the plug-in, the electrical signal is processed by the optical connector, converted into an optical signal, and then transmitted via the optical cable.

2. The RJ45 interface active optical cable of claim 1, wherein: the optical connector comprises an MCU chip, a plurality of light-emitting laser wafers and a photoelectric detector; wherein the plurality of light-emitting laser wafers are provided as a plurality of laser generators.

3. The RJ45 interface active optical cable of claim 2, wherein: one side of the optical connector is fixedly connected with an optical fiber plug-in unit, and one side of the optical fiber plug-in unit is movably connected with an optical fiber.

4. An RJ45 interface active optical cable according to claim 3, wherein: the bottom of the optical connector is positioned at the top of one of the light-emitting laser wafers, and a sending end inlet is also arranged; and a sending end direction conversion device is fixedly arranged in the optical connector and positioned at the top of the sending end inlet.

5. The RJ45 interface active optical cable of claim 4, wherein: and a sending end outlet is formed in the top of the optical connector and positioned on one side of the sending end direction conversion device.

6. The RJ45 interface active optical cable of claim 5, wherein: and a receiving end inlet is formed in the right side of the optical connector and positioned on the right side of the optical fiber.

7. The RJ45 interface active optical cable of claim 6, wherein: and a receiving end direction conversion device is fixedly arranged in the optical connector and positioned at the right side of the receiving end inlet.

8. The RJ45 interface active optical cable of claim 7, wherein: and a receiving end outlet is formed in the bottom of the optical connector and the bottom of the receiving end direction conversion device.

9. The RJ45 interface active optical cable of claim 8, wherein: and the photoelectric detector is fixedly arranged at the top of the MCU chip and at the bottom of the outlet of the receiving end.

10. The RJ45 interface active optical cable of claim 5, wherein: the right side of optical connection connector, and the right side fixedly connected with sending terminal locating part that is located the sending terminal export.

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