Gigabit network optical fiber transmission device

Abstract

The utility model discloses a kind of gigabit network optical fiber transmission devices, it includes: multiple parallel electrical interfaces, for receiving or sending parallel electrical signal;Multiple parallel / serial signal conversion module, for corresponding connection the multiple parallel electrical interfaces, parallel electrical signal is converted into serial electrical signal, and serial electrical signal is converted into parallel electrical signal;Optical module, it includes array laser driver and transmission array lens series connection branch, and array laser detector and receiving array lens series connection branch;For converting multiple serial electrical signals into multiple optical signals by array laser driver, and converting multiple optical signals into multiple serial electrical signals by array laser detector;And MPO interface, for connecting the transmission array lens respectively by optical fiber, and connecting the receiving array lens respectively. The utility model simplifies wiring, optimizes space configuration.

Description

Technical Field

[0001] This utility model relates to the field of multi-channel gigabit fiber optic transmission technology, and in particular to a gigabit fiber optic transmission device. Background Technology

[0002] Currently, most gigabit network fiber optic transmission boxes on the market are single-path structures, using LC (Lucent Connector) or SC (Subscriber Connector) fiber optic connectors. Both types of connectors use a single-core fiber.

[0003] A single-channel gigabit fiber optic transmission box assembles all necessary components, including power supplies and crystal oscillators, into a single unit. However, the transmission capacity of a single-channel box is insufficient for demand; adding six separate boxes would result in excessively high costs, exceed assembly size limits, and cause management difficulties. Utility Model Content

[0004] This invention provides a gigabit fiber optic transmission device that addresses the aforementioned problems by designing multi-path transmission, simplifying cabling, and optimizing space configuration.

[0005] The present invention adopts the following technical solution: In a first aspect, this utility model provides a gigabit network fiber optic transmission device, comprising: Multiple electrical interfaces for receiving or transmitting parallel electrical signals; Multiple parallel / serial signal conversion modules are used to connect to the multiple electrical interfaces to convert parallel electrical signals into serial electrical signals and vice versa. An optical module, comprising an array laser driver and a series branch for transmitting array lenses, and an array laser detector and a series branch for receiving array lenses; used to convert multiple serial electrical signals into multiple optical signals via the array laser driver, and to convert multiple optical signals into multiple serial electrical signals via the array laser detector; and The MPO interface is used to connect the transmitting array lens and the receiving array lens respectively via optical fibers.

[0006] Secondly, a gigabit fiber optic transmission device, which includes: Multiple electrical interfaces for receiving or transmitting parallel electrical signals; Multiple parallel / serial signal conversion modules are used to connect to the multiple electrical interfaces to convert parallel electrical signals into serial electrical signals and vice versa. A detachable optical module includes a series branch of an array laser driver and a transmitting array lens, a series branch of an array laser detector and a receiving array lens, and an MPO interface; used to convert multiple serial electrical signals into multiple optical signals through the array laser driver, and to convert multiple optical signals into multiple serial electrical signals through the array laser detector; and the MPO interface is connected to the transmitting array lens and the receiving array lens respectively via optical fibers. Beneficial effects

[0007] 1) This utility model converts multiple parallel electrical signals into multiple serial electrical signals, and then converts the multiple serial electrical signals into multiple optical signals through the array optical device of the optical module. That is, the array laser driver or array laser detector of the optical module converts electrical signals and optical signals to each other, integrates the function of multiple transmit / receive, completes the optical signal transmission of multiple networks, and greatly simplifies wiring.

[0008] 2) This utility model ingeniously utilizes the physical structure of MPO multi-core optical fiber to connect with the array lens of the optical module to achieve integrated multi-channel optical signal transmission. Only one MPO cable is needed, which simplifies the peripheral cables of the optical fiber transmission device, reduces costs, and facilitates management.

[0009] 3) The array optical devices of the optical module, as well as the array cross-group amplifier or array limiting amplifier, are miniaturized, greatly optimizing the space configuration.

[0010] 4) This utility model requires only one power chip, one clock chip, one box, and one MPO cable, which greatly reduces costs, has a small assembly size, and is easy to manage. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the structure of a gigabit fiber optic transmission device provided in Embodiment 1 of the present invention. Detailed Implementation

[0012] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0013] See Figure 1Embodiment 1 of this utility model provides a gigabit network fiber optic transmission device, including six RJ45 copper wire interfaces, six parallel / serial signal conversion modules, an optical module, an MPO (Multi-fiber Push-On) interface, a power chip, and a clock chip. The optical module includes a series branch of an array laser driver and a transmitting array lens, and a series branch of an array laser detector and a receiving array lens. The transmitting and receiving array lenses are respectively connected to the MPO interface via optical fibers, and the MPO interface is used to connect an external multi-core MPO fiber optic cable.

[0014] The six RJ45 interfaces are connected to six parallel / serial signal conversion modules. The first set of serial ports of the six parallel / serial signal conversion modules are connected to the array laser driver, and the second set of serial ports of the six parallel / serial signal conversion modules are connected to the array laser detector. An external network converter is also connected to each of the six RJ45 interfaces.

[0015] The parallel / serial signal conversion module is a general-purpose signal conversion chip. Six RJ45 copper wire interfaces receive signals from the network converter to obtain six parallel gigabit network signals. These parallel gigabit network signals are converted into serial signals (differential signals) by the parallel / serial signal conversion module and output from the first set of serial ports. The serial signals are then converted into optical signals by the array laser driver, and the optical signals are transmitted and output through the transmitting array lens and MPO interface.

[0016] The MPO interface receives six optical signals. After passing through the receiving array lens, the array laser detector converts the optical signals into serial electrical signals (differential signals) and inputs them into the second set of serial ports of the parallel / serial signal conversion module. The parallel / serial signal conversion module then converts them into six parallel signals for output, and the six corresponding RJ45 interfaces output parallel gigabit network signals.

[0017] This embodiment converts six parallel signals into six serial signals, and uses an array laser driver or array laser detector to convert between electrical and optical signals, integrating six transmit / send functions to complete six-channel network optical transmission, greatly simplifying cabling. It cleverly utilizes the physical structure of the MPO multi-core fiber and connects it to the array lens of the optical module to achieve integrated multi-channel optical signal transmission using only a single MPO cable, simplifying the external cabling of the fiber optic transmission device, reducing costs, and facilitating management. The miniaturization of the array optical devices in the optical module greatly optimizes space configuration.

[0018] Furthermore, the output of the array laser detector is connected to the input of the array cross-group amplifier, and the output of the array cross-group amplifier is connected to the input of the six parallel / serial signal conversion modules respectively.

[0019] Furthermore, the output of the array laser detector is connected to the input of the array limiting amplifier, and the output of the array limiting amplifier is connected to the input of the six parallel / serial signal conversion modules respectively.

[0020] Preferably, the enable control terminals EN_SWR (pin 15) of the six parallel / serial signal conversion modules are configured with different pull-up sequences to avoid current surges caused by simultaneous startup. The pull-up sequence can be achieved using an RC circuit or controlled by the processor. For example, the enable control terminals EN_SWR of the six parallel / serial signal conversion modules can be powered through an RC circuit, with sequential delays to pull up the enable control terminals EN_SWR, thus sequentially enabling the six parallel / serial signal conversion modules to operate. Alternatively, the six parallel / serial signal conversion modules can be connected in series, with the next chip being enabled only after the previous one has been activated.

[0021] A clock chip is connected in parallel to the aforementioned six parallel / serial signal conversion modules.

[0022] The design circuitry, consisting of a power chip and a clock chip, further optimizes the spatial configuration of the fiber optic transmission device.

[0023] Embodiment 2 of this utility model provides a gigabit network fiber optic transmission device, the difference being that the optical module and the MPO interface are combined to form a detachable optical module. The detachable optical module is a small hot-swappable optical module, such as SFP, SFP+, QSFP, etc. The working principle is the same as in Embodiment 1, and will not be repeated here.

[0024] The above description is the preferred embodiment of this utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of this utility model, and these improvements and modifications are also considered to be within the protection scope of this utility model.

Claims

1. A gigabit network optical fiber transmission device, characterized by, include: Multiple electrical interfaces for receiving or transmitting parallel electrical signals; Multiple parallel / serial signal conversion modules are used to connect to the multiple electrical interfaces to convert parallel electrical signals into serial electrical signals and vice versa. An optical module comprising an array laser driver and a series branch for transmitting array lenses, and an array laser detector and a series branch for receiving array lenses; used to convert multiple serial electrical signals into multiple optical signals via the array laser driver, and to convert multiple optical signals into multiple serial electrical signals via the array laser detector. And an MPO interface, used to connect the transmitting array lens and the receiving array lens respectively via optical fiber.

2. The Gigabit Ethernet optical fiber transmission apparatus of claim 1, wherein, The output of the array laser detector is connected to the input of the array cross-group amplifier, and the output of the array cross-group amplifier is connected to the serial input of multiple parallel / serial signal conversion modules.

3. The Gigabit Ethernet optical fiber transmission apparatus of claim 1, wherein, The output of the array laser detector is connected to the input of the array limiting amplifier, and the output of the array limiting amplifier is connected to the serial input of the multiple parallel / serial signal conversion modules.

4. The Gigabit Ethernet optical fiber transmission apparatus of claim 1, wherein, The power supply is provided through an RC circuit or controlled by a processor to sequentially enable the operation of multiple parallel / serial signal conversion modules.

5. The Gigabit Ethernet optical fiber transmission apparatus of claim 1 wherein, The electrical interface is an RJ45 interface.

6. A gigabit network optical fiber transmission device, characterized by, Includes multiple electrical interfaces for receiving or transmitting parallel electrical signals; Multiple parallel / serial signal conversion modules are used to connect to the multiple electrical interfaces to convert parallel electrical signals into serial electrical signals and vice versa. A detachable optical module includes an array laser driver and a serial branch of a transmitting array lens, an array laser detector and a serial branch of a receiving array lens, and an MPO interface; used to convert multiple serial electrical signals into multiple optical signals via the array laser driver, and to convert multiple optical signals into multiple serial electrical signals via the array laser detector. Furthermore, the MPO interface is connected to the transmitting array lens and the receiving array lens respectively via optical fibers.

7. The Gigabit Ethernet optical fiber transmission apparatus of claim 6, wherein, The detachable optical module is a small hot-swappable optical module.

8. The Gigabit Ethernet optical fiber transmission apparatus of claim 6, wherein, The output of the array laser detector is connected to the input of the array cross-group amplifier, and the output of the array cross-group amplifier is connected to the serial input of multiple parallel / serial signal conversion modules.

9. The Gigabit Ethernet optical fiber transmission apparatus of claim 6, wherein, The output of the array laser detector is connected to the input of the array limiting amplifier, and the output of the array limiting amplifier is connected to the serial input of the multiple parallel / serial signal conversion modules.

10. The Gigabit Ethernet optical fiber transmission apparatus of claim 6, wherein, The power supply is provided through an RC circuit or controlled by a processor to sequentially enable the operation of multiple parallel / serial signal conversion modules.

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