CN212781339U - Light attenuation device with stable operation - Google Patents
Light attenuation device with stable operation Download PDFInfo
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- CN212781339U CN212781339U CN202020938880.8U CN202020938880U CN212781339U CN 212781339 U CN212781339 U CN 212781339U CN 202020938880 U CN202020938880 U CN 202020938880U CN 212781339 U CN212781339 U CN 212781339U
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Abstract
The utility model discloses a move stable light decay device, include: the optical splitting module is used for receiving an input optical signal and splitting the input optical signal into a detection optical signal and an attenuation optical signal; the light attenuation module is connected with the light splitting module and used for receiving the attenuation light signals and outputting the attenuation light signals with set power; the photoelectric conversion module is connected with the light splitting module and used for converting the detection light signal into an electric signal; and the control module is respectively connected with the photoelectric conversion module and the light attenuation module and used for receiving the electric signal output by the photoelectric conversion module and outputting an electric signal for controlling the light attenuation consumption of the light attenuation module. The utility model discloses earlier fall into the light signal that is used for input light decay module and the light signal that is used for inputing photoelectric conversion module with input light signal through the beam split module, adjust the luminous power of light decay module output in real time through photoelectric conversion module and control module, prevent that the bit error rate from increasing and influence the ether business break-make.
Description
Technical Field
The utility model belongs to the power equipment field, concretely relates to light decay device that operation is stable.
Background
The optical attenuator is a commonly used optical device in a communication station, and can be inserted into an optical path to attenuate the power of an optical signal according to a set fixed value, so that the optical attenuator is used for adjusting the power of the optical signal transmitted by an optical communication system or a test system to enable the system to achieve a good matching state. And are also commonly used to detect the sensitivity and dynamic range of optical receivers.
At present, a fixed light attenuator is adopted in a communication station, which has the defect that the light attenuator cannot be automatically adjusted, and because the line attenuation changes when the parameters of an optical cable line change, and the light receiving power also changes immediately, the light power is overhigh, the error rate is increased, and the light plate or the light module is damaged when the Ethernet service is switched off; or the optical power is too low, which also results in an increase of the error rate, which affects the on-off of the ethernet service, and the protection switching often occurs in the communication channel. Therefore, the fault must be handled in time, but when the fault is handled, the worker needs to go to the site of the communication station to perform the work of exchanging the optical attenuator, and the time for the worker to go to and go from the site of the communication station is far longer than the time for exchanging the optical attenuator, so that the work efficiency is low.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem that a light attenuation device that the operation is stable that the fault rate is low is provided.
In order to solve the technical problem, the utility model adopts the following technical scheme: an optical attenuation apparatus with stable operation, comprising: the optical splitting module is used for receiving an input optical signal and splitting the input optical signal into a detection optical signal and an attenuation optical signal; the light attenuation module is connected with the light splitting module and used for receiving the attenuation light signals and outputting the attenuation light signals with set power; the photoelectric conversion module is connected with the light splitting module and used for converting the detection light signal into an electric signal; and the control module is respectively connected with the photoelectric conversion module and the light attenuation module and used for receiving the electric signal output by the photoelectric conversion module and outputting an electric signal for controlling the light attenuation consumption of the light attenuation module.
In the above-mentioned optical attenuation apparatus with stable operation, the optical power of the detection optical signal is α, and the optical power of the attenuation optical signal is β, which satisfy
In the above optical attenuation apparatus with stable operation, the control module includes an operational amplifier and a characteristic curve adjusting circuit connected to each other, and the electrical signal output by the photoelectric conversion module is amplified by the operational amplifier and then transmitted to the characteristic curve adjusting circuit.
In the above-mentioned optical attenuation apparatus with stable operation, the operational amplifier is a dual operational amplifier.
In the above optical attenuation apparatus with stable operation, the optical splitting module is a fused biconical type optical splitter.
In the light attenuation device with stable operation, the light attenuation module is a micromotor light attenuator.
In the above light attenuation apparatus with stable operation, the photoelectric conversion module is a semiconductor photodetector.
In the above light attenuation device with stable operation, the device further comprises a communication module and a remote control module, wherein the remote control module is connected with the control module through the communication module.
In the above optical attenuation apparatus with stable operation, the light splitting module is provided with a power detection module for detecting the input optical power.
The utility model has the advantages that:
the utility model divides the input optical signal into the optical signal for inputting the optical attenuation module and the optical signal for inputting the photoelectric conversion module through the light splitting module, adjusts the optical power output by the optical attenuation module through the photoelectric conversion module and the control module in real time, when the optical cable line parameters change, the optical power output by the optical attenuation device changes along with the change of the optical power, the optical attenuation consumption is accurately adjusted in time, the over-high or over-low optical power is prevented, namely, the method prevents the increase of the error rate from influencing the on-off of the Ethernet service, has stable and reliable operation, greatly reduces the failure rate of the optical communication network, does not need workers to go to and fro to a communication station for adjustment, has high adjustment efficiency and simple operation and maintenance, on the basis of not changing and destroying the existing field facilities of the communication station, the light splitting module, the photoelectric conversion module and the control module are added to realize the transformation of the existing communication station, and the communication station has the characteristics of good compatibility, economy, cost and the like.
The features and advantages of the present invention will be disclosed in more detail in the following detailed description and the accompanying drawings.
Drawings
The invention will be further described with reference to the accompanying drawings and specific embodiments:
fig. 1 is a schematic view of an optical attenuation apparatus of the present invention with stable operation.
Reference numerals:
100. a light splitting module; 200. a light attenuation module; 300. a photoelectric conversion module; 410. an operational amplifier; 420. a characteristic curve adjusting circuit.
Detailed Description
The utility model provides a move stable light decay and consume device, include: the optical splitting module is used for receiving an input optical signal and splitting the input optical signal into a detection optical signal and an attenuation optical signal; the light attenuation module is connected with the light splitting module and used for receiving the attenuation light signals and outputting the attenuation light signals with set power; the photoelectric conversion module is connected with the light splitting module and used for converting the detection light signal into an electric signal; and the control module is respectively connected with the photoelectric conversion module and the light attenuation module and used for receiving the electric signal output by the photoelectric conversion module and outputting an electric signal for controlling the light attenuation consumption of the light attenuation module. The utility model divides the input optical signal into the optical signal for inputting the optical attenuation module and the optical signal for inputting the photoelectric conversion module through the light splitting module, adjusts the optical power output by the optical attenuation module through the photoelectric conversion module and the control module in real time, when the optical cable line parameters change, the optical power output by the optical attenuation device changes along with the change of the optical power, the optical attenuation consumption is accurately adjusted in time, the over-high or over-low optical power is prevented, namely, the method prevents the increase of the error rate from influencing the on-off of the Ethernet service, has stable and reliable operation, greatly reduces the failure rate of the optical communication network, does not need workers to go to and fro to a communication station for adjustment, has high adjustment efficiency and simple operation and maintenance, on the basis of not changing and destroying the existing field facilities of the communication station, the light splitting module, the photoelectric conversion module and the control module are added to realize the transformation of the existing communication station, and the communication station has the characteristics of good compatibility, economy, cost and the like.
The technical solutions of the embodiments of the present invention are explained and explained below with reference to the drawings of the embodiments of the present invention, but the embodiments described below are only preferred embodiments of the present invention, and not all embodiments. Based on the embodiments in the embodiment, other embodiments obtained by those skilled in the art without any creative work belong to the protection scope of the present invention.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and to simplify the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, unless otherwise specified, "a plurality" means two or more unless explicitly defined otherwise.
In the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.
In the present disclosure, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact between the first and second features, or may comprise contact between the first and second features not directly. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.
The first embodiment is as follows:
an optical attenuation apparatus with stable operation, as shown in fig. 1, includes: an optical splitting module 100, configured to receive an input optical signal and split the input optical signal into a probe optical signal and an attenuation optical signal; the light attenuation module 200 is connected with the light splitting module 100 and is used for receiving the attenuation light signal and outputting the attenuation light signal with set power; the photoelectric conversion module 300 is connected to the light splitting module 100, and is configured to convert the detection light signal into an electrical signal; and a control module, respectively connected to the photoelectric conversion module 300 and the light attenuation module 200, for receiving the electrical signal output by the photoelectric conversion module 300 and outputting an electrical signal for controlling the light attenuation amount of the light attenuation module 200.
The optical power of the detection optical signal is alpha, the optical power of the attenuation optical signal is beta, and the requirements are met
So that only a few part of optical signals are converted into electric signals, and the additional loss of the optical attenuation device is reduced.
The control module in this embodiment includes an operational amplifier 410 and a characteristic curve adjusting circuit 420 connected to each other, the electrical signal output by the photoelectric conversion module 300 is amplified by the operational amplifier 410 and then transmitted to the characteristic curve adjusting circuit 420, the operational amplifier 410 is a dual operational amplifier 410, which ensures high accuracy, and preferably, an LF353BI-FET dual operational amplifier 410 is used.
The working process is as follows:
after an input optical signal is input to the optical splitter module 100, the input optical signal is split into a detection optical signal and an attenuation optical signal by the optical splitter module 100 and output. The attenuation optical signal is input into the optical attenuation module 200, and the optical attenuation module 200 outputs the attenuation optical signal with set power; meanwhile, the detection optical signal is input to the photoelectric conversion module 300, the photoelectric conversion module 300 converts the detection optical signal into an electrical signal, the electrical signal is processed by the operational amplifier 410, and then the electrical signal is output to the optical attenuation module 200 under the control of the characteristic curve adjusting circuit 420 to adjust the optical attenuation consumption, so as to achieve the effect of stably controlling the optical power by the optical attenuation device. The light attenuation module 200 adjusts the light attenuation amount of a part of the optical signals after the light is split by the light splitting module 100, so that the loss of the light attenuation device is reduced, and the input optical signals are utilized to the maximum extent. The utility model discloses fall into the optical signal who is used for inputing light attenuation module 200 and the optical signal who is used for inputing photoelectric conversion module 300 through beam splitting module 100 earlier, adjust the optical power of light attenuation module 200 output in real time through photoelectric conversion module 300 and control module, when optical cable circuit parameter changes, the optical power of light attenuation device output changes along with it, in time the accurate adjustment light attenuation volume, prevent that optical power is too high or low excessively, prevent that the error rate from increasing and influencing the ethernet break-make, the operation is reliable and stable, greatly reduce the fault rate of optical communication network, need not the staff to come and go the communication station scene and adjust, make the regulation efficiency high, the operation maintenance is simple, on the existing field facilities basis of not changing and destroying the communication station, add beam splitting module 100, photoelectric conversion module 300 and control module, in order to realize the transformation of current communication station, has the characteristics of good compatibility, economy, cost and the like.
The light splitting module 100 in this embodiment is a fused biconical type light splitter, because the fused biconical type light splitter can split a light path into two parts, the light splitting accuracy is high, the price is low, and the cost is reduced. The light attenuation module 200 in this embodiment is a microcomputer light attenuator, which can accurately control the attenuation amount and has the advantages of easy implementation and low price, and preferably, a MOMES chip microcomputer light attenuator is used. The photoelectric conversion module 300 is a semiconductor photodetector, which can accurately convert light energy into electric energy, has a high gain and a low price, and preferably adopts an APD tube with a model of C30919E.
The light attenuation device in the embodiment further comprises a communication module and a remote control module, the remote control module is connected with the control module through the communication module to achieve the function of remotely controlling the light attenuation consumption, and the communication mode of the communication module can be wired communication or wireless communication.
In this embodiment, the optical splitting module 100 is provided with a power detection module for detecting input optical power, and the power detection module is a power meter with a display function for a worker to check in real time.
It is above only the utility model discloses a preferred embodiment, the utility model discloses a scope of protection does not only confine above-mentioned embodiment, the all belongs to the utility model discloses a technical scheme under the thinking all belongs to the utility model discloses a scope of protection. It should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.
Claims (8)
1. An optical attenuation apparatus that operates stably, comprising:
the optical splitting module is used for receiving an input optical signal and splitting the input optical signal into a detection optical signal and an attenuation optical signal;
the light attenuation module is connected with the light splitting module and used for receiving the attenuation light signals and outputting the attenuation light signals with set power;
the photoelectric conversion module is connected with the light splitting module and used for converting the detection light signal into an electric signal;
the control module is respectively connected with the photoelectric conversion module and the light attenuation module and used for receiving the electric signal output by the photoelectric conversion module and outputting an electric signal for controlling the light attenuation consumption of the light attenuation module;
the remote control system is characterized by further comprising a communication module and a remote control module, wherein the remote control module is connected with the control module through the communication module.
2. An operationally stable optical attenuation device according to claim 1, characterized by: the optical power of the detection optical signal is alpha, and the optical power of the decay optical signal is beta, so that the requirements of the detection optical signal and the decay optical signal are met
3. An operationally stable optical attenuation device according to claim 2, characterized by: the control module comprises an operational amplifier and a characteristic curve adjusting circuit which are connected, and the electric signal output by the photoelectric conversion module is amplified by the operational amplifier and then transmitted to the characteristic curve adjusting circuit.
4. An operationally stable optical attenuation device according to claim 3, characterized by: the operational amplifier is a dual operational amplifier.
5. An operationally stable optical attenuation device according to any one of claims 1 to 4, characterized in that: the light splitting module is a fused biconical type light splitter.
6. An operationally stable optical attenuation device according to any one of claims 1 to 4, characterized in that: the light attenuation module is a micromotor light attenuator.
7. An operationally stable optical attenuation device according to any one of claims 1 to 4, characterized in that: the photoelectric conversion module is a semiconductor photodetector.
8. An operationally stable optical attenuation device according to claim 1, characterized by: and the light splitting module is provided with a power detection module for detecting input optical power.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202020938880.8U CN212781339U (en) | 2020-05-28 | 2020-05-28 | Light attenuation device with stable operation |
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| CN202020938880.8U CN212781339U (en) | 2020-05-28 | 2020-05-28 | Light attenuation device with stable operation |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111694099A (en) * | 2020-05-28 | 2020-09-22 | 国网浙江台州市路桥区供电有限公司 | Light attenuation device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111694099A (en) * | 2020-05-28 | 2020-09-22 | 国网浙江台州市路桥区供电有限公司 | Light attenuation device |
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