CN216721323U - Double-rate self-adaptive photoelectric transceiving module - Google Patents
Double-rate self-adaptive photoelectric transceiving module Download PDFInfo
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- CN216721323U CN216721323U CN202123265339.9U CN202123265339U CN216721323U CN 216721323 U CN216721323 U CN 216721323U CN 202123265339 U CN202123265339 U CN 202123265339U CN 216721323 U CN216721323 U CN 216721323U
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Abstract
A double-rate self-adaptive photoelectric transceiver module relates to the technical field of optical communication. The utility model comprises the following steps: the device comprises an electric signal transceiving device, a first clock data recovery unit, a second clock data recovery unit, a first speed judgment selection unit, a second speed judgment selection unit, a transmitting driving unit, a transmitting optical device, a receiving optical device and an optical signal amplification unit. The clock recovery device has the advantages that when the signal sent by the electric signal transceiving device is smaller than 10.3125Gbps, the rate judging and selecting unit sends a 10.3125Gbps rate signal to the clock recovery unit, and when the signal sent by the electric signal transceiving device is larger than 10.3125Gbps, the rate judging and selecting unit sends a 25.78Gbps rate signal to the clock recovery unit. The utility model provides a double-rate self-adaptive photoelectric transceiver module in order to overcome the defect that the conventional photoelectric conversion device cannot transmit signals with different intensities according to the speed of an electric signal.
Description
Technical Field
The utility model relates to the technical field of optical communication, in particular to a double-rate self-adaptive photoelectric transceiver module.
Background
In optical fiber communication, an electrical signal must be converted into an optical signal so as to propagate on an optical fiber. In an optical fiber communication system, information is carried by light waves emitted by an LED or LD, which are carrier waves, and the process of loading information onto the light waves is modulation. An optical modulator is a device that performs conversion from an electrical signal to an optical signal. Modulation schemes are generally classified into two broad categories, namely analog modulation and digital modulation. Analog modulation has two types, one is intensity modulation (D-IM) of the light source directly with analog baseband signals; another method uses continuous or pulsed Radio Frequency (RF) waves as subcarriers, where an analog baseband signal modulates its amplitude, frequency, or phase, etc., and then the modulated subcarriers are used to intensity modulate the light source. The advantages of analog modulation are simple equipment, narrow occupied bandwidth, poor anti-interference performance and noise accumulation during relay. Digital modulation is the main modulation mode of optical fiber communication, after sampling and quantizing an analog signal, an optical carrier is modulated on and off by binary digital signals '1' or '0', and Pulse Coding (PCM) is performed. The digital modulation has the advantages of strong anti-interference capability, and no accumulation of noise and dispersion influence during relay, so that long-distance transmission can be realized.
The existing photoelectric conversion device cannot transmit signals with different intensities according to the speed of the electric signals, so the utility model provides a double-speed self-adaptive photoelectric transceiver module.
SUMMERY OF THE UTILITY MODEL
The photoelectric conversion device aims to solve the problem that the existing photoelectric conversion device cannot transmit signals with different intensities according to the speed of an electric signal. The utility model provides a double-rate self-adaptive photoelectric transceiving module.
The technical scheme of the utility model comprises the following steps: the optical signal receiving and transmitting device comprises an electric signal receiving and transmitting device, a first clock data recovery unit, a second clock data recovery unit, a first speed judgment selection unit, a second speed judgment selection unit, a transmitting driving unit, a transmitting optical device, a receiving optical device and an optical signal amplification unit, wherein an electric signal output end of the electric signal receiving and transmitting device is connected with an electric signal input end of the first clock data recovery unit, an electric signal input end of the first clock data recovery unit is connected with an electric signal input end of the first speed judgment selection unit, an electric signal output end of the first clock data recovery unit is connected with an electric signal input end of the transmitting driving unit, the transmitting driving unit is used for converting received electric signals into optical signals, an optical signal output end of the transmitting driving unit is connected with an optical signal input end of the transmitting optical device, and an optical signal output end of the transmitting optical device is connected with an optical signal input end of the receiving optical device, the optical signal output end of the receiving optical device is connected with the optical signal input end of the receiving amplifying device, the receiving amplifying device is used for converting the received optical signal into an electric signal, the electric signal output end of the receiving amplifying device is connected with the electric signal input end of the second clock data recovery unit, the electric signal input/output end of the second clock data recovery unit is connected with the electric signal input/output end of the second speed determination selection unit, and the electric signal output end of the second clock data recovery unit is connected with the electric signal input end of the electric signal transceiver.
It is preferable that the first rate decision selection unit and the second rate decision selection unit each internally set a rate threshold of 10.3125Gbps and 25.78 Gbps.
Preferably, the emission driving unit is an OLTD2500 chip.
Preferably, the optical signal amplifying unit is an OLRD2600 chip.
Preferably, the light emitting device is of the OLTOSCACW 31-25GE type.
Preferably, the light receiving means is of the type OLROSACW31-25 GE.
According to the double-rate self-adaptive photoelectric transceiver module, the first rate judging and selecting unit and the second rate judging and selecting unit are arranged, when the signal sent by the electric signal transceiver is smaller than 10.3125Gbps, the rate judging and selecting unit sends a 10.3125Gbps rate signal to the clock recovery unit, and when the signal sent by the electric signal transceiver is larger than 10.3125Gbps, the rate judging and selecting unit sends a 25.78Gbps rate signal to the clock recovery unit, so that the problem that the existing photoelectric conversion device cannot transmit signals with different intensities according to the rate of the electric signals is solved.
Drawings
FIG. 1 is a schematic diagram of a dual rate adaptive opto-electronic transceiver module;
FIG. 2 is a schematic diagram of a dual-rate adaptive opto-electronic transceiver module for converting electrical signals to optical signals;
fig. 3 is a schematic diagram of a dual-rate adaptive photoelectric transceiver module for converting optical signals into electrical signals.
Detailed Description
The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
The first embodiment is as follows:
as shown in fig. 1 to fig. 3, the dual-rate adaptive optoelectronic transceiver module according to this embodiment includes: the optical signal receiving and transmitting device comprises an electric signal receiving and transmitting device, a first clock data recovery unit, a second clock data recovery unit, a first speed judgment selection unit, a second speed judgment selection unit, a transmitting driving unit, a transmitting optical device, a receiving optical device and an optical signal amplification unit, wherein an electric signal output end of the electric signal receiving and transmitting device is connected with an electric signal input end of the first clock data recovery unit, an electric signal input end of the first clock data recovery unit is connected with an electric signal input end of the first speed judgment selection unit, an electric signal output end of the first clock data recovery unit is connected with an electric signal input end of the transmitting driving unit, the transmitting driving unit is used for converting received electric signals into optical signals, an optical signal output end of the transmitting driving unit is connected with an optical signal input end of the transmitting optical device, and an optical signal output end of the transmitting optical device is connected with an optical signal input end of the receiving optical device, the optical signal output end of the receiving optical device is connected with the optical signal input end of the receiving amplifying device, the receiving amplifying device is used for converting the received optical signal into an electric signal, the electric signal output end of the receiving amplifying device is connected with the electric signal input end of the second clock data recovery unit, the electric signal input/output end of the second clock data recovery unit is connected with the electric signal input/output end of the second speed determination selection unit, and the electric signal output end of the second clock data recovery unit is connected with the electric signal input end of the electric signal transceiver.
In this embodiment, the electrical signal is converted into an optical signal by the first clock data recovery unit, the first rate determination selection unit, and the transmission drive unit, and the optical signal is converted into an electrical signal by the transmission optical device, the reception optical device, the optical signal amplification unit, the second clock data recovery unit, and the second rate determination selection unit. Wherein the first rate judging and selecting unit and the second rate judging and selecting unit internally set rate thresholds of 10.3125Gbps and 25.78Gbps, when the sent or received signal is less than 10.3125Gbps, the rate judging and selecting unit feeds back a 10.3125Gbps rate signal to the clock recovery unit, when the signal sent by the electric signal transceiving device is more than 10.3125Gbps, the first rate judging and selecting unit feeds back a 25.78Gbps rate signal to the first clock recovery unit,
example two: as shown in fig. 1 to 3, in the dual-rate adaptive optoelectronic transceiver module according to this embodiment, the first rate determination selection unit and the second rate determination selection unit have rate thresholds of 10.3125Gbps and 25.78Gbps, where the transmission driving unit is an OLTD2500 chip, and the optical signal amplification unit is an olld 2600 chip. In this embodiment, the OLTD2500 chip has a compact and durable structure, and is a key component of the low-power optical transmitter module. And is capable of handling complete digital to analog conversion including CML input, laser driver, drive control and monitoring. Standard silicon technology and a small number of additional components allow for a cost effective and compact assembly. OLTD2500 can be used with OLTD 2600.
Example three: as shown in fig. 1 to 3, in the dual-rate adaptive optoelectronic transceiver module according to this embodiment, the light emitting device is of an oltoacw model 31-25GE, and the light receiving device is of an oltoacw model 31-25 GE.
The OLROSACW31-25GE type light emitting device has strong flexibility, a 19' 1U standard frame is adopted, a high-performance 1+1 plug-in dual power supply is arranged in the frame, a microprocessor is arranged in the frame to monitor the working states of an external modulator and a laser, working parameters are displayed by a panel LCD window, SNMP network management is performed, and a network management monitoring function can be realized.
The radio frequency circuit of the OLROSACW31-25GE type light receiving device adopts an optional gallium arsenide module, so that the performance index and reliability of the product are ensured; eight sections of the light power level indicator lamp are displayed step by step, so that engineering personnel can know the received light power in time conveniently, and the engineering personnel can carry out network debugging conveniently;
the working principle is as follows: firstly, the electric signal transceiver sends an electric signal to a first clock data recovery unit, the first clock data recovery unit sends the received electric signal to a first speed determination selection unit, the first speed determination unit is internally provided with speed thresholds of 10.3125Gbps and 25.78Gbps, when the received signal is less than 10.3125Gbps, the speed determination selection unit feeds back the 10.3125Gbps speed signal to the clock recovery unit, when the received signal is more than 10.3125Gbps, the first speed determination selection unit feeds back the 25.78Gbps speed signal to the first clock recovery unit, the first clock recovery unit sends the electric signal to a transmission driving unit, the transmission driving unit converts the received electric signal into an optical signal and sends the optical signal to a transmission optical device, the transmission optical device sends the optical signal to a receiving optical device, the receiving optical device sends the optical signal to a receiving amplification device, the receiving amplification device is used for amplifying and converting the received optical signal into the electric signal, and sending the electrical signal to a second clock data recovery unit, wherein the second clock data recovery unit sends the received electrical signal to a second speed judgment selection unit, the second speed judgment unit internally sets speed thresholds of 10.3125Gbps and 25.78Gbps, when the speed of the received electrical signal is less than 10.3125Gbps, the second speed judgment selection unit feeds back a 10.3125Gbps speed signal to the second clock recovery unit, and when the received electrical signal is greater than 10.3125Gbps, the second speed judgment selection unit feeds back a 25.78Gbps speed signal to the second clock recovery unit and sends the electrical signal to an electrical signal transceiver.
It is to be understood that the present invention has been described with reference to certain embodiments, and that various changes in the features and embodiments, or equivalent substitutions may be made therein by those skilled in the art without departing from the spirit and scope of the utility model. In addition, many modifications may be made to adapt a particular situation or material to the teachings of the utility model without departing from the essential scope thereof. Therefore, it is intended that the utility model not be limited to the particular embodiment disclosed, but that the utility model will include all embodiments falling within the scope of the appended claims.
Claims (6)
1. A dual-rate adaptive photoelectric transceiver module, comprising: the optical signal receiving and transmitting device comprises an electric signal receiving and transmitting device, a first clock data recovery unit, a second clock data recovery unit, a first speed judgment selection unit, a second speed judgment selection unit, a transmitting driving unit, a transmitting optical device, a receiving optical device and an optical signal amplification unit, wherein an electric signal output end of the electric signal receiving and transmitting device is connected with an electric signal input end of the first clock data recovery unit, an electric signal input end of the first clock data recovery unit is connected with an electric signal input end of the first speed judgment selection unit, an electric signal output end of the first clock data recovery unit is connected with an electric signal input end of the transmitting driving unit, the transmitting driving unit is used for converting received electric signals into optical signals, an optical signal output end of the transmitting driving unit is connected with an optical signal input end of the transmitting optical device, and an optical signal output end of the transmitting optical device is connected with an optical signal input end of the receiving optical device, the optical signal output end of the receiving optical device is connected with the optical signal input end of the receiving amplifying device, the receiving amplifying device is used for converting the received optical signal into an electric signal, the electric signal output end of the receiving amplifying device is connected with the electric signal input end of the second clock data recovery unit, the electric signal input/output end of the second clock data recovery unit is connected with the electric signal input/output end of the second speed determination selection unit, and the electric signal output end of the second clock data recovery unit is connected with the electric signal input end of the electric signal transceiver.
2. The dual-rate adaptive optoelectronic transceiver module as claimed in claim 1, wherein the first rate decision selection unit and the second rate decision selection unit are each provided with a rate threshold of 10.3125Gbps and 25.78 Gbps.
3. The dual-rate adaptive opto-electronic transceiver module as claimed in claim 1, wherein the transmission driving unit is an OLTD2500 chip.
4. The module as claimed in claim 1, wherein the optical signal amplifying unit is an OLRD2600 chip.
5. A dual rate adaptive opto-electronic transceiver module as defined in claim 1 wherein said transmitting optical means is of the type oltoacw 31-25 GE.
6. The dual-rate adaptive opto-electronic transceiver module as claimed in claim 1 wherein said receiving optics is of the type OLROSACW31-25 GE.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117424643A (en) * | 2023-12-18 | 2024-01-19 | 科谱半导体(天津)有限公司 | Optical communication method, system, storage medium and device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117424643A (en) * | 2023-12-18 | 2024-01-19 | 科谱半导体(天津)有限公司 | Optical communication method, system, storage medium and device |
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