Gigabit network optical fiber transmission device

Abstract

The invention discloses a gigabit network optical fiber transmission device, which comprises a plurality of parallel electrical interfaces used for receiving or sending parallel electrical signals; the plurality of parallel / serial signal conversion modules are used for being correspondingly connected with the plurality of parallel electrical interfaces, converting parallel electrical signals into serial electrical signals and converting the serial electrical signals into parallel electrical signals; the optical module comprises an array laser driver, a transmitting array lens series branch, an array laser detector and a receiving array lens series branch; the optical conversion module is used for converting the plurality of serial electric signals into a plurality of optical signals through an array laser driver and converting the plurality of optical signals into a plurality of serial electric signals through an array laser detector; and the MPO interface is respectively connected with the transmitting array lens and the receiving array lens through optical fibers. Wiring is simplified, and space configuration is optimized.

Description

Technical Field

[0001] The present invention relates to the technical field of multi-channel gigabit network optical fiber transmission, and in particular to a gigabit network optical fiber transmission device. Background Art

[0002] Currently, all Gigabit fiber optic transmission boxes on the market are single-channel structures, using LC (Lucent Connector) or SC (Subscriber Connector) fiber optic connectors. Both of these fiber optic connectors are characterized by a single-core fiber.

[0003] A single-channel box for Gigabit fiber transmission, containing all necessary components including power supplies, crystal oscillators, and other chips, was used in a single box. However, the single-channel box was insufficient for transmission, and adding six sets of boxes directly resulted in high costs, excessive assembly volume, and inconvenient management. Summary of the Invention

[0004] The present invention provides a Gigabit optical fiber transmission device, which aims to solve the above problems, designs multi-channel transmission, simplifies wiring, and optimizes space configuration.

[0005] The present invention adopts the following technical solutions:

[0006] In a first aspect, the present invention provides a Gigabit optical fiber transmission device, comprising:

[0007] Multiple electrical interfaces for receiving or sending parallel electrical signals;

[0008] a plurality of parallel / serial signal conversion modules, configured to be connected to the plurality of parallel electrical interfaces, and to convert parallel electrical signals into serial electrical signals, and vice versa;

[0009] An optical module comprising 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; configured to convert a plurality of the serial electrical signals into a plurality of optical signals via the array laser driver, and to convert a plurality of optical signals into a plurality of serial electrical signals via the array laser detector; and

[0010] The MPO interface is used to connect the transmitting array lens and the receiving array lens respectively through optical fibers.

[0011] In a second aspect, a Gigabit optical fiber transmission device includes:

[0012] Multiple electrical interfaces for receiving or sending parallel electrical signals;

[0013] a plurality of parallel / serial signal conversion modules, configured to be connected to the plurality of parallel electrical interfaces, and to convert parallel electrical signals into serial electrical signals, and vice versa;

[0014] 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; is used to convert multiple serial electrical signals into multiple optical signals through the array laser driver, and convert multiple optical signals into multiple serial electrical signals through the array laser detector; and the MPO interface is respectively connected to the transmitting array lens and the receiving array lens through optical fibers.

[0015] Beneficial effects

[0016] 1) The present invention 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 electrical signal and the optical signal are converted into each other through the array laser driver or array laser detector of the optical module, integrating the multi-transmitter / multi-receiver function to complete the optical signal transmission of the multi-channel network, greatly simplifying the wiring.

[0017] 2) The present invention cleverly utilizes the physical structure of the MPO multi-core optical fiber to connect with the array lens of the optical module to realize integrated multi-channel optical signal transmission, using only one MPO cable, thereby simplifying the peripheral cables of the optical fiber transmission device, reducing costs and facilitating management.

[0018] 3) The array optical components of the optical module, as well as the array cross-group amplifier or array limiting amplifier, are miniaturized, greatly optimizing the space configuration.

[0019] 4) The present invention only requires a set of power chips, a clock chip, a box, and an MPO cable, which greatly reduces costs, has a small assembly volume, and is easy to manage. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a structural diagram of a gigabit optical fiber transmission device provided in Example 1 of the present invention. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the present invention will be described clearly and completely below with reference to the accompanying drawings in the embodiments of the present invention.

[0022] See also Figure 1Embodiment 1 of the present invention provides a gigabit fiber optic transmission device, comprising 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 comprises 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 array lens and the receiving array lens are respectively connected to the MPO interface via optical fibers, and the MPO interface is used to connect to an external multi-core MPO fiber optic cable.

[0023] The six RJ45 interfaces are connected to six parallel / serial signal conversion modules. The first serial ports of the six parallel / serial signal conversion modules are connected to the array laser drivers, and the second serial ports of the six parallel / serial signal conversion modules are connected to the array laser detectors. The six RJ45 interfaces are connected to an external network converter.

[0024] The parallel / serial signal conversion module is a universal signal conversion chip. Six RJ45 copper wire interfaces receive signals from the network converter and generate six parallel Gigabit Ethernet signals. These parallel Gigabit Ethernet 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. The optical signals pass through the transmitting array lens and are output through the MPO interface.

[0025] The MPO interface receives 6 optical signals, which pass through the receiving array lens and the array laser detector, converting the optical signals into serial electrical signals (differential signals) and connecting them to the second set of serial port inputs of the parallel / serial signal conversion module. The parallel / serial signal conversion module converts them into 6 parallel signal outputs, and the parallel Gigabit network signals are output by 6 corresponding RJ45 interfaces.

[0026] This embodiment converts six parallel signals into six serial signals, utilizes an array laser driver or array laser detector to convert electrical signals into optical signals, and integrates 6-transmit / 6-receive functionality to achieve optical transmission in a six-way network, significantly simplifying wiring. By cleverly utilizing the physical structure of MPO multi-core optical fibers and connecting them with the optical module's array lens, integrated multi-channel optical signal transmission is achieved using only a single MPO cable, simplifying the peripheral cabling of the optical fiber transmission device, reducing costs and facilitating management. The optical module's array optical components are miniaturized, significantly optimizing spatial configuration.

[0027] Furthermore, the output end of the array laser detector is connected to the input end of the array cross-group amplifier, and the output end of the array cross-group amplifier is respectively connected to the input ends of the six parallel / serial signal conversion modules.

[0028] Furthermore, the output end of the array laser detector is connected to the input end of the array limiting amplifier, and the output end of the array limiting amplifier is connected to the input ends of the six parallel / serial signal conversion modules respectively.

[0029] Preferably, the enable control terminals EN_SWR (pin 15) of the chips of the six parallel / serial signal conversion modules are set to different pull-up orders to avoid current shock caused by simultaneous startup. The pull-up order can be in an RC resistor-capacitor manner or can be controlled by a processor. For example, the enable control terminals EN_SWR of the chips of the six parallel / serial signal conversion modules are powered by an RC resistor-capacitor circuit, and the power supply is sequentially delayed to pull up the enable control terminal EN_SWR, thereby enabling the chips of the six parallel / serial signal conversion modules to work in order; for example, the chips of the six parallel / serial signal conversion modules are connected in series in sequence, and after the previous chip is enabled to work, the next chip is triggered to work.

[0030] A clock chip is connected in parallel to the six parallel / serial signal conversion module chips.

[0031] The design circuit of a power chip and a clock chip further optimizes the space configuration of the optical fiber transmission device.

[0032] Embodiment 2 of the present invention provides a Gigabit optical fiber transmission device, which differs in that the optical module and the MPO interface are combined into a detachable optical module, and the detachable optical module is a small hot-swappable optical module, such as SFP, SFP+, QSFP, etc. The working principle is the same as that of Embodiment 1 and will not be repeated here.

[0033] The above is a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present invention. These improvements and modifications are also considered to be within the scope of protection of the present invention.

Claims

1. A Gigabit optical fiber transmission device, characterized in that: include: Multiple electrical interfaces for receiving or sending parallel electrical signals; a plurality of parallel / serial signal conversion modules, configured to be connected to the plurality of parallel electrical interfaces, and to convert parallel electrical signals into serial electrical signals, and vice versa; An optical module comprising 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; configured to convert a plurality of the serial electrical signals into a plurality of optical signals via the array laser driver, and to convert a plurality of optical signals into a plurality of serial electrical signals via the array laser detector; as well as The MPO interface is used to connect the transmitting array lens and the receiving array lens respectively through optical fibers.

2. The Gigabit optical fiber transmission device according to claim 1, wherein: The output end of the array laser detector is connected to the input end of the array cross-group amplifier, and the output end of the array cross-group amplifier is respectively connected to the serial input ends of the plurality of parallel / serial signal conversion modules.

3. The Gigabit optical fiber transmission device according to claim 1, wherein: The output end of the array laser detector is connected to the input end of the array limiting amplifier, and the output end of the array limiting amplifier is respectively connected to the serial input ends of the plurality of parallel / serial signal conversion modules.

4. The Gigabit optical fiber transmission device according to claim 1, wherein: The power supply is supplied through an RC resistor-capacitor circuit or controlled by a processor to enable the plurality of parallel / serial signal conversion modules to work in sequence.

5. The Gigabit optical fiber transmission device according to claim 1, wherein: The parallel electrical interface is an RJ45 interface.

6. Gigabit optical fiber transmission device, characterized in that: include Multiple electrical interfaces for receiving or sending parallel electrical signals; a plurality of parallel / serial signal conversion modules, configured to be connected to the plurality of parallel electrical interfaces, and to convert parallel electrical signals into serial electrical signals, and vice versa; A detachable optical module comprising 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; configured to convert a plurality of the serial electrical signals via the array laser driver into a plurality of optical signals, and to convert a plurality of optical signals into a plurality of serial electrical signals via the array laser detector; Furthermore, the MPO interfaces are respectively connected to the transmitting array lenses and the receiving array lenses through optical fibers.

7. The Gigabit optical fiber transmission device according to claim 1, wherein: The detachable optical module is a small hot-swappable optical module.

8. The Gigabit optical fiber transmission device according to claim 1, wherein: The output end of the array laser detector is connected to the input end of the array cross-group amplifier, and the output end of the array cross-group amplifier is respectively connected to the serial input ends of the plurality of parallel / serial signal conversion modules.

9. The Gigabit optical fiber transmission device according to claim 1, wherein: The output end of the array laser detector is connected to the input end of the array limiting amplifier, and the output end of the array limiting amplifier is respectively connected to the serial input ends of the plurality of parallel / serial signal conversion modules.

10. The Gigabit optical fiber transmission device according to claim 1, wherein: The power supply is supplied through an RC resistor-capacitor circuit or controlled by a processor to enable the plurality of parallel / serial signal conversion modules to work in sequence.

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