CN116073899A - Optical fiber jumper interface monitoring device and optical communication test equipment - Google Patents

Abstract

The application relates to an optical fiber jumper interface monitoring device and optical communication test equipment. The monitoring device comprises a light source, a circulator and an optical power measuring module, wherein a first port, a second port and a third port are sequentially formed in the annular signal direction of the circulator; the optical signal generated by the light source is incident to a first port of the circulator, a second port of the circulator is connected with a second end of the optical fiber jumper, and a third port of the circulator is connected with the optical power measuring module; the optical power measuring module is used for receiving and measuring the optical power value of the optical signal output by the third port of the circulator, and the optical power value is used for determining whether the first end of the optical fiber jumper is connected with equipment or not. Therefore, when the optical path communication is abnormal, whether the abnormality is caused by the fact that the connection is not in place or not can be checked, the timeliness of fault checking is improved, unnecessary waste caused by the fact that the optical components are not in place replaced due to connection is avoided, and time cost and labor cost caused by the fact that the optical path is built again due to replacement of the components are saved.

Description

Optical fiber jumper interface monitoring device and optical communication test equipment

Technical Field

The application relates to the technical field of optical communication, in particular to an optical fiber jumper interface monitoring device and optical communication test equipment.

Background

Optical fiber jumpers (also known as optical fiber connectors) are a type of patch cord used for routing links from equipment to optical fibers, and are generally used for connection between an optical transceiver and a terminal box, and are mainly applied to the fields of optical fiber communication systems, optical fiber access networks, optical fiber data transmission, local area networks and the like.

Before the optical fiber jumper leaves the factory, both ends of the optical fiber jumper can be connected to the insertion loss return loss tester, and the insertion loss and return loss of the optical fiber jumper are detected in batches by using the insertion loss return loss tester. However, in practical applications, when one end of the optical fiber jumper is connected to a device (such as a terminal box), the optical path docking effect of the one end of the optical fiber jumper cannot be tested by the insertion loss return loss tester. Once the abnormal optical path communication caused by the fact that the optical fiber jumper is not in place in the butt joint of the equipment occurs, people can hardly observe and judge the abnormal optical path communication through naked eyes, and the problem that an optical path is built again through replacing new optical components is solved, so that the non-monitoring property of the connection of the optical fiber jumper and the equipment brings unnecessary waste to the construction and the fault elimination of the optical path.

Disclosure of Invention

Based on the above, it is necessary to provide an optical fiber jumper interface monitoring device and an optical communication testing device for the problem that the connection between the optical fiber jumper and the device cannot be monitored.

An optical fiber jumper interface monitoring apparatus, a first end of the optical fiber jumper being connected to a device, the apparatus comprising: the device comprises a light source, a circulator and an optical power measurement module, wherein a first port, a second port and a third port are sequentially formed in the annular signal direction of the circulator; the optical signal generated by the light source is incident to a first port of the circulator, the second port of the circulator is connected with a second end of the optical fiber jumper, and the third port is connected with the optical power measuring module; the optical power measuring module is used for receiving and measuring an optical power value of an optical signal output by the third port of the circulator, and the optical power value is used for determining whether the first end of the optical fiber jumper is connected with equipment or not.

When one end of the optical fiber jumper is connected with the equipment, an optical signal sent by the light source is input through a first port of the circulator and is output to the optical fiber jumper through a second port of the circulator, if the optical fiber jumper is not connected in place with the equipment at the second port of the circulator, the optical power returns to a third port due to the characteristic of the circulator; if the optical fiber jumper is connected in place with the equipment, no optical signal is returned from the third port; the optical power measuring module can measure the optical power value of the optical signal output by the third port of the circulator, and can judge whether the optical fiber jumper at the second port is connected with the equipment or not through the optical power value.

Therefore, whether the interface of the first end of the optical fiber jumper is connected in place with equipment or not is monitored, when the optical path communication is abnormal, whether the abnormality caused by the fact that the connection is not in place or not can be checked, timeliness of fault checking is improved, unnecessary waste caused by the fact that optical components are not connected in place is avoided, and time cost and labor cost caused by the fact that the optical path is built again by replacing the components are saved.

In one embodiment, the device further comprises an optical path adapter through which the second port of the circulator is connected to the second end of the fiber optic jumper.

Because the port of the circulator is adapted to a limited type of the optical fiber jumper, in order to expand the type of the optical fiber jumper monitored by the monitoring device, the second port of the circulator needs to be improved and designed, and the workload is high. In this embodiment, by arranging the optical path adapter between the second port of the circulator and the second end of the optical fiber jumper, the improved design of the second port of the circulator can be omitted, and meanwhile, the monitoring device can monitor whether each type of optical fiber jumper is connected in place or not, so that the adaptation range is wider.

In one embodiment, the optical power measurement module is an optical power meter. The monitoring device adopts the existing optical power meter, so that the monitoring device is fast in building speed and simple and convenient to operate.

In one embodiment, the device further includes an upper computer connected to the optical power meter, where the upper computer receives an optical power value output by the optical power meter, and determines that the first end of the optical fiber jumper is not connected in place with the device when the optical power value is greater than a preset threshold value.

Through connecting the optical power meter with the host computer, read the optical power value by the host computer after, judge automatically whether be connected in place between first end and the equipment of optic fibre wire jumper, degree of automation is higher, can release more human cost.

In one embodiment, the optical power measurement module comprises a photoelectric conversion module and an amplification processing module which are connected; the photoelectric conversion module is connected with the third port of the circulator and is used for receiving the optical signal output by the third port of the circulator and converting the optical signal into a corresponding electric signal; the amplifying processing module is used for amplifying the electric signal and determining the optical power value of the optical signal according to the amplified electric signal.

The photoelectric conversion module and the amplification processing module are arranged, so that the collection of optical signals and the measurement of optical power values can be realized, and the photoelectric conversion module and the amplification processing module are lower in cost, so that compared with the existing optical power meter, the photoelectric conversion module and the amplification processing module are lower in cost.

In one embodiment, the amplification processing module is further configured to determine that the first end of the optical fiber jumper is not connected in place with the device when the optical power value is greater than a preset threshold.

In one embodiment, the apparatus further comprises: the alarm module is connected with the optical power measurement module; the alarm module is used for sending out an alarm signal under the condition that the first end of the optical fiber jumper is not connected with equipment in place. Thereby reminding operators of timely troubleshooting.

In one embodiment, the optical fiber jumper is a single mode fiber or a multi-film fiber.

In one embodiment, the wavelength band of the light source matches the type of the fiber optic jumper.

An optical communication test device comprises the optical fiber jumper interface monitoring device.

When one end of the optical fiber jumper is connected with the equipment, an optical signal emitted by the light source is input through the first port of the circulator and is output to the optical fiber jumper through the second port of the circulator, and if the optical fiber jumper is not connected in place with the equipment, the optical power returns to the third port due to the characteristic of the circulator; if the optical fiber jumper is connected in place with the equipment, no optical signal is returned from the third port; the optical power measuring module can measure the optical power value of the optical signal output by the third port of the circulator, and can judge whether the optical fiber jumper at the second port is connected with the equipment or not through the optical power value. Therefore, whether the interface of the first end of the optical fiber jumper is connected in place with equipment or not is monitored, when the optical path communication is abnormal, whether the abnormality caused by the fact that the optical path communication is not in place or not can be checked, timeliness of fault checking is improved, unnecessary waste caused by the fact that optical components are not connected in place is avoided, and time cost and labor cost caused by the fact that the optical path is built again by replacing the components are saved.

Drawings

FIG. 1 is a block diagram of a fiber optic jumper interface monitoring device in one embodiment;

FIG. 2 is a schematic diagram of the signal transmission direction of the circulator;

FIG. 3 is a schematic diagram of a forward transmission path of the circulator;

FIG. 4 is a schematic diagram of a reverse transmission path of the circulator;

FIG. 5 is a schematic diagram of optical signal transmission when an optical fiber jumper is not connected in place in one embodiment;

FIG. 6 is a flow chart of a monitoring method using a fiber optic jumper interface monitoring device according to an embodiment.

Detailed Description

In order to make the objects, technical solutions and advantages of the present application more apparent, the present application will be further described in detail with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the present application.

In one embodiment, as shown in fig. 1, there is provided an optical fiber jumper interface monitoring device 10, where a first end of an optical fiber jumper 20 to be monitored is connected to a device 30, where the monitoring device 10 includes a light source 101, a circulator 102, and an optical power measurement module 103, and a first port (shown as a port 1), a second port (shown as a port 2), and a third port (shown as a port 3) are sequentially opened in an annular signal direction of the circulator 102; the optical signal generated by the optical source 101 is incident to a first port of the circulator 102, a second port of the circulator 102 is connected with a second end of the optical fiber jumper 20, and a third port is connected with the optical power measuring module 103; the optical power measurement module 103 is configured to receive and measure an optical power value of an optical signal output by the third port of the circulator 102, where the optical power value is used to determine whether the first end of the optical fiber jumper 20 is connected in place with the device 30.

The circulator 102 is a multi-port optical device having non-reciprocal characteristics, and when an optical signal is input from any one port, the optical signal is output from the next port in a predetermined order with little loss. As shown in fig. 2, when an optical signal is input from any one port, the optical signal can be output from the next port with little loss in the numerical order shown, and the loss of the port to all other ports is large, so that the port is not communicated with the other ports. Specifically, an optical signal is input from port 1, and an optical signal can only be output from port 2, and similarly, an optical signal input from port 2 can only be output from port 3. The non-reciprocity of the circulator makes the circulator an important device in two-way communication, can complete the separation task of forward/reverse transmission, and has wide application in the fields of single-fiber two-way communication, up/down voice channel, wave combination/wave division, dispersion compensation and the like in optical communication.

The implementation of the circulator 102 is largely divided into two broad categories, transmissive and reflective, and the principle of the circulator is explained below in connection with a transmissive circulator. Referring to fig. 3-4, in the circulator, in the process of light passing through the port 1 to the port 2, the polarization state and the position of the light beam are changed as shown in fig. 3, the light input by the port 1 passes through the birefringent crystal 1 and then becomes two light beams with mutually perpendicular polarization directions, the polarization directions of the two light beams pass through the faraday rotator and then rotate 45 degrees to the right, the polarization directions of the two light beams pass through the half-wave plate and then rotate 45 degrees to the right (the polarization states and the fast axis form 22.5 degrees), the polarization directions of the two light beams become mutually perpendicular after passing through the half-wave plate, the two light beams are respectively along the z direction and the y direction, and finally one light beam is synthesized by the birefringent crystal 2 and is output by the port 2.

In this circulator, the change of polarization and position of the light beam during the light passing from port 2 to port 3 is shown in fig. 4. The light input by the port 2 is changed into two beams of light with mutually perpendicular polarization directions after passing through the birefringent crystal 2, the polarization directions are deflected to the left by 45 degrees after passing through the half-wave plate, the polarization states of the beams are deflected to the right by 45 degrees after passing through the Faraday rotator, the polarization directions are changed back to the original incident state, the two beams of light are separated again by the birefringent crystal 1, and the two beams of light are output from the port 3 through the triangular prism and the PBS prism. Wherein: the Faraday rotator has non-reciprocity, and the rotation directions of the polarization states are consistent during forward transmission and reverse transmission; the wave plate has reciprocity, and the rotation directions of the polarization states are opposite in the forward transmission and the reverse transmission.

The optical fiber jumper 20 may be a single-mode optical fiber or a multi-film optical fiber. The wave band of the light source 101 needs to be matched with the type of the optical fiber jumper 20, and in actual test, the wave band of the optical signal output by the light source 101 can be selected according to the type of the optical fiber jumper 20 to be monitored and the wave band of the transmitted optical signal. For example, when the optical fiber jumper 20 is a single mode optical fiber, a light source having a wavelength band of 1310nm (Nanometer) or 1550nm may be selected according to the wavelength band in which an optical signal is transmitted.

The specific type of the device 30 connected to the optical fiber patch cord 20 is not limited, and when the device 30 forms an optical path through the optical fiber patch cord 20, the first end of the optical fiber patch cord 20 is connected to the device 30, specifically, an interface of the optical fiber patch cord 20 is connected to a plug connector of the device 30, and when the interface of the optical fiber patch cord 20 is connected to the device 30 in place, the optical path is conducted; this optical path is not conductive when the interface of the fiber optic jumper 20 is not connected in place with the device 30.

At present, when the optical path is not conducted, since the other end of the device 30 is fixed or the other end of the device 30 is in a packaging form such as a waveguide which cannot be directly and manually docked with other adapters, the insertion loss return loss tester cannot connect the two ends of the optical path, and cannot detect whether the optical fiber jumper 20 is connected with the device 30 in place only through the first end, which is not connected with the optical fiber jumper 20. In this case, it is common practice to plug for several times, and determine the interface of the optical fiber jumper 20 and the docking state of the device 30 according to the state of the device 30, if the plug for several times is still invalid, a new optical component (such as the optical fiber jumper 20, the device 30 or the optical fiber jumper adapter) will be replaced, and the optical path will be built again until the optical path is turned on. The non-monitoring of the connection between the optical fiber jumper 20 and the equipment 30 brings a lot of uncertainties to the construction and the fault removal of the optical path, and unnecessary waste is caused by the fact that the optical components are replaced due to the fact that the connection between the interfaces of the optical fiber jumper 20 and the equipment 30 is not in place.

In this embodiment, when one end of the optical fiber jumper 20 is connected to the device 30, the optical signal sent by the optical source 101 is input through the first port of the circulator 102 and output to the optical fiber jumper 20 through the second port. If the interface between the fiber optic jumper 20 and the device 30 is not in place at the second port, the optical power will return to the third port due to the characteristics of the circulator 102, as shown in FIG. 5; if the optical fiber jumper 20 is connected in place with the device 30, then no optical signal is returned at the third port; the optical power measurement module 103 can measure the optical power value of the optical signal output by the third port of the circulator 102, so that whether the optical fiber jumper 20 at the second port is connected with the device 30 or not can be judged by monitoring the optical power value of the third port by the optical power measurement module 103.

It can be understood that in practical application, because of different types of selection, the number of ports of the circulator 102 may be greater than 3, and when the monitoring optical path is connected, it is ensured that the signal transmission direction of the circulator 102 is as follows: the port input connected to the light source 101, the port output connected to the optical fiber jumper 20, the port input connected to the optical fiber jumper 20, and the port output connected to the optical power measurement module 103 may be used.

The optical fiber jumper interface monitoring device 10 includes a light source 101, an circulator 102, and an optical power measurement module 103, wherein a first port (shown as a port 1), a second port (shown as a port 2) and a third port (shown as a port 3) are sequentially provided in the annular signal direction of the circulator 102; the optical signal generated by the optical source 101 is incident to a first port of the circulator 102, a second port of the circulator 102 is connected with a second end of the optical fiber jumper 20, and a third port is connected with the optical power measuring module 103; the optical power measurement module 103 is configured to receive and measure an optical power value of an optical signal output by the third port of the circulator 102, where the optical power value is used to determine whether the first end of the optical fiber jumper 20 is connected in place with the device 30. When the interface between the optical fiber jumper 20 and the device 30 is not connected in place, the optical signal emitted by the optical source 101 returns to the third port due to the characteristics of the circulator 102; if the optical fiber jumper 20 is connected in place with the device 30, then no optical signal is returned at the third port; therefore, the optical power value of the third port of the circulator 102 is monitored through the optical power measuring module 103, whether the optical fiber jumper 20 at the second port is connected with the equipment 30 or not can be judged, the monitoring of the interface of the optical fiber jumper 20 is realized, when the optical path communication is abnormal, whether the abnormality caused by the fact that the connection is not in place or not can be checked, the timeliness of fault checking is improved, unnecessary waste caused by the fact that the optical components are not connected in place is avoided, and the time cost and the labor cost caused by the fact that the optical path is rebuilt by replacing the components are saved. In addition, when the monitoring device 10 is used, only one end of the optical path to be tested is required to be connected, and two ends of the optical path to be tested are not required to be connected at the same time, so that the actual adaptation scene is wider.

In one embodiment, the monitoring device 10 further includes an optical path adapter through which the second port of the circulator 102 is connected to the second end of the fiber optic jumper 20.

The optical fiber patch cord 20 includes an optical fiber cord body and a connector, according to the different connector forms, the optical fiber patch cord 20 may include an FC patch cord, an SC patch cord, an ST patch cord, an LC patch cord, an MT patch cord, and the like, the connectors of the various types of patch cords are different, and the port adaptation of the circulator 102 is limited, so that in order to expand the type of the optical fiber patch cord 20 monitored by the monitoring device 10, the second port of the circulator 102 needs to be designed in an improved manner, and the workload is high.

In this embodiment, by providing an optical path adapter between the second port of the circulator 102 and the second end of the optical fiber jumper 20, the improved design of the second port of the circulator 102 can be omitted, and meanwhile, the monitoring device 10 can monitor whether the optical fiber jumpers 20 of various types are connected in place or not, so that the adaptation range is wider.

In actual testing, if the optical fiber jumper 20 to be tested is originally connected with the optical path adapter at the second end, the optical path adapter connected with the optical fiber jumper can be directly connected to the second port of the circulator 102.

In one embodiment, the optical power measurement module 103 is an optical power meter.

The optical power meter is an instrument for measuring the optical power, can be used for directly measuring the optical power and also can be used for relatively measuring the optical attenuation, and is a necessary basic testing instrument for departments of research, development, production, construction, maintenance and the like in an optical fiber communication system. In this embodiment, by adopting the existing optical power meter for measurement, the accuracy of optical power measurement can be ensured, and the monitoring device 10 is fast in construction speed and simple and convenient to operate.

In one embodiment, the monitoring apparatus 10 further includes a host computer connected to the optical power meter, the host computer receiving the optical power value output by the optical power meter, and determining whether the optical fiber jumper 20 is connected in place between the first end and the device 30 according to the optical power value.

Through connecting the optical power meter with the host computer, read the optical power value by the host computer after, judge automatically whether be connected in place between optical fiber jumper 20's the first end and the equipment 30, degree of automation is higher, can release more human cost.

Further, the upper computer determines that the first end of the optical fiber jumper 20 is not connected in place with the device 30 when the optical power value is greater than the preset threshold value.

When the optical fiber jumper 20 is connected in place with the equipment 30, the third port of the circulator 102 has almost no optical signal return, at the moment, the optical power value is very tiny and is lower than a preset threshold value, and the upper computer can determine that the optical fiber jumper 20 is connected in place based on the optical power value; when the third port of the circulator 102 outputs the optical signal sent by the optical source 101 with less loss, the optical power value will be larger and higher than the preset threshold, and the upper computer can determine that the interface of the optical fiber jumper 20 is not connected in place. The magnitude of the preset threshold value may be preset in the upper computer by an operator according to test data or experience, or may be set in combination with the power of the light signal output by the light source 100 during each monitoring.

In one embodiment, the optical power measurement module 103 includes a photoelectric conversion module and an amplification processing module connected; the photoelectric conversion module is connected with the third port of the circulator 102 and is used for receiving the optical signal output by the third port of the circulator 102 and converting the optical signal into a corresponding electrical signal; the amplifying processing module is used for amplifying the electric signal and determining the optical power value of the optical signal according to the amplified electric signal.

When the butt joint between the optical fiber jumper 20 and the device 30 is not connected in place, due to the characteristic of the circulator 102, the optical signal sent by the light source 101 returns to the third port, at this time, the optical-to-electrical conversion module receives the optical signal, converts the optical signal into a corresponding electrical signal, and outputs the electrical signal to the amplification processing module, and the amplification processing module amplifies the electrical signal, and determines the optical power value of the optical signal according to the amplified electrical signal, where the optical power value is larger. If the optical fiber jumper 20 is connected to the device 30, no optical signal is returned from the third port, and no optical signal (or a tiny optical signal) is received by the photoelectric conversion module, and no electrical signal (or a tiny electrical signal) is output to the amplification processing module, where the amplification processing module determines that the optical power value of the optical signal is zero or smaller. Therefore, the optical power value monitored by the optical power measuring module 103 can determine whether the optical fiber jumper 20 at the second port is connected with the equipment 30 in place, so that the monitoring of the interface of the optical fiber jumper 20 is realized.

In this embodiment, by setting the photoelectric conversion module and the amplification processing module, the collection of the optical signal and the measurement of the optical power value can be realized, and compared with the direct use of the optical power meter, the cost can be obviously reduced. The structures of the electric conversion module and the amplifying processing module are not limited, and the functions can be realized and the monitoring needs can be met.

In one embodiment, the amplification processing module is further configured to determine whether a connection is in place between the first end of the optical fiber jumper 20 and the device 30 based on the optical power value. Therefore, the optical power measuring module 103 for measuring the optical power value monitors the interface connection state of the optical fiber jumper 20, and the degree of automation of the optical power measuring module 103 is improved.

Specifically, the amplification processing module determines that the first end of the optical fiber jumper 20 is not connected in place with the device 30 when the optical power value is greater than a preset threshold. The amplifying processing module can be pre-stored with a preset threshold value, and the amplifying processing module can also comprise an interaction unit, and an operator inputs the preset threshold value through the interaction unit.

In one embodiment, the monitoring device 10 further comprises an alarm module connected to the optical power measurement module 103; the alarm module is used for sending out an alarm signal to remind operators to remove faults in time under the condition that the first end of the optical fiber patch cord 20 is not connected in place with the equipment 30.

Specifically, when the optical power measurement module 103 outputs an optical power value, the alarm module may receive the optical power value and issue an alarm signal if it is determined that the optical power value is not connected in place between the first end of the optical fiber jumper 20 and the device 30.

When the optical power measurement module 103 outputs a first disconnection signal corresponding to the unconnected in-place between the first end of the optical fiber jumper 20 and the device 30, the alarm module is configured to receive the first disconnection signal and send an alarm signal according to the first disconnection signal.

In one embodiment, the alarm module may be further connected to an upper computer, where the alarm module is configured to receive the second disconnection signal and send an alarm signal when the upper computer outputs the second disconnection signal corresponding to the unconnected position between the first end of the optical fiber jumper 20 and the device 30.

Further, when the number of the monitoring devices 10 is large, the alarm modules in each monitoring device 10 can be connected to the upper computer respectively, so that the upper computer can know the connection state of each optical fiber jumper 20 in time, and the centralized management of operators is facilitated.

It can be understood that the alarm module can be a separate module or integrated in the amplifying processing module or the upper computer, and those skilled in the art can be set in combination with actual needs. Through setting up alarm module, can in time prompt operating personnel.

According to the optical fiber jumper interface monitoring device 10, the optical power value of the optical signal of the third port of the circulator 102 is measured through the optical power measuring module 103, whether the connection between the first end of the optical fiber jumper 20 and the equipment 30 is in place or not can be judged according to the optical power value, whether the connection between the optical fiber jumper 20 and the equipment 30 is in place or not is monitored is realized, when the optical path communication is abnormal, whether the abnormality caused by the fact that the connection is not in place or not can be detected, timeliness of fault detection is improved, unnecessary waste caused by the fact that optical components are not in place replaced is avoided, and time cost and labor cost caused by the fact that the optical path is built again due to the fact that the components are replaced are saved.

In one embodiment, as shown in FIG. 6, the monitoring method applied to the fiber optic jumper interface monitoring device 10 described above includes steps 200-400.

Step 200, connecting the second end of the optical fiber jumper with the second port of the circulator, connecting the first port of the circulator with the light source, and connecting the third port of the circulator with the optical power measuring module.

The optical fiber jumper wire can be a single-mode optical fiber or a multi-film optical fiber. The specific type of the device 30 connected with the optical fiber jumper is not limited, and when the device 30 forms an optical path through the optical fiber jumper, the interface of the optical fiber jumper can be specifically connected with the plug connector of the device 30, and when the interface of the optical fiber jumper is connected with the device 30 in place, the optical path is conducted (assuming that all components have no faults); the optical path is not conductive when the interface of the fiber optic jumper is not connected in place with the device 30.

It will be appreciated that when the interface of the second end of the optical fiber jumper is not matched with the second port of the circulator, the connection of the second end of the optical fiber jumper with the second port of the circulator may specifically include: and connecting the second end of the optical fiber jumper with one end of the optical path adapter, and connecting the other end of the optical path adapter with the second port of the circulator. If the second end of the optical fiber jumper to be tested is originally connected with the optical path adapter, the optical path adapter connected with the optical path adapter can be directly connected with the second port of the circulator.

Step 300, controlling the light source to emit an optical signal to a first port of the circulator.

The wave band of the optical signal sent by the light source needs to be matched with the type of the optical fiber jumper, and the wave band of the optical signal output by the light source needs to be selected according to the type of the optical fiber jumper to be monitored and the wave band of the transmission light during actual test. The power of the light signal emitted by the light source can be set according to the test requirement, and the limitation is not needed.

Step 400, the optical power measurement module receives and measures an optical power value of an optical signal of the third port of the circulator, and determines whether the connection between the first end of the optical fiber jumper and the device 30 is in place according to the optical power value.

When one end of the optical fiber jumper is connected with the equipment 30, the optical signal emitted by the light source is input through the first port of the circulator and output through the second port. If the optical fiber jumper is not connected in place with the device 30 at the second port, the optical power returns to the third port due to the circulator characteristics; if a fiber jumper is connected in place with the device 30, then no optical signal is returned at the third port; therefore, the optical power value of the third port is monitored by the optical power measuring module, and whether the optical fiber jumper at the second port is connected with the equipment 30 or not can be judged.

By the monitoring method, whether the connection between the first end of the optical fiber jumper and the equipment 30 is in place or not can be judged according to the optical power value, whether the connection between the optical fiber jumper and the equipment 30 is in place or not is monitored, when the optical path communication is abnormal, whether the connection is not in place or not can be checked out, timeliness of fault checking is improved, unnecessary waste caused by the fact that the optical components are not in place replaced is avoided, and time cost and labor cost caused by the fact that the optical path is rebuilt by replacing the components are saved.

In one embodiment, an optical communication testing device 30 is provided, which includes an optical fiber jumper interface monitoring device 10, and the structure of the optical fiber jumper interface monitoring device 10 can be set with reference to the above embodiments, which is not described herein.

In one embodiment, the number of the monitoring devices 10 in the optical communication test apparatus 30 is plural, and each monitoring device 10 is configured to correspondingly monitor whether one optical fiber patch cord is connected in place.

Further, the optical communication test device 30 may only include an upper computer, where the optical power meters in the plurality of monitoring devices 10 are all connected to the upper computer, and the upper computer manages the connection states of the plurality of optical fiber jumpers, so as to facilitate centralized checking of operators.

The technical features of the above-described embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above-described embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description.

The above examples merely represent a few embodiments of the present application, which are described in more detail and are not to be construed as limiting the scope of the invention. It should be noted that it would be apparent to those skilled in the art that various modifications and improvements could be made without departing from the spirit of the present application, which would be within the scope of the present application. Accordingly, the scope of protection of the present application is to be determined by the claims appended hereto.

Claims (10)

1. An optical fiber jumper interface monitoring device, wherein a first end of the optical fiber jumper is connected to an apparatus, the device comprising: the device comprises a light source, a circulator and an optical power measurement module, wherein a first port, a second port and a third port are sequentially formed in the annular signal direction of the circulator;

the optical signal generated by the light source is incident to a first port of the circulator, the second port of the circulator is connected with a second end of the optical fiber jumper, and the third port is connected with the optical power measuring module;

the optical power measuring module is used for receiving and measuring an optical power value of an optical signal output by the third port of the circulator, and the optical power value is used for determining whether the first end of the optical fiber jumper is connected with equipment or not.

2. The fiber optic jumper interface monitoring device of claim 1, further comprising an optical path adapter through which the second port of the circulator is connected to a second end of the fiber optic jumper.

3. The fiber optic jumper interface monitoring device of claim 1, wherein the optical power measurement module is an optical power meter.

4. The optical fiber jumper interface monitoring device according to claim 3, further comprising a host computer connected to the optical power meter, wherein the host computer receives the optical power value output by the optical power meter and determines that the first end of the optical fiber jumper is not connected in place with the equipment when the optical power value is greater than a preset threshold.

5. The optical fiber jumper interface monitoring device according to claim 1, wherein the optical power measurement module comprises a photoelectric conversion module and an amplification processing module which are connected;

the photoelectric conversion module is connected with the third port of the circulator and is used for receiving the optical signal output by the third port of the circulator and converting the optical signal into a corresponding electric signal;

the amplifying processing module is used for amplifying the electric signal and determining the optical power value of the optical signal according to the amplified electric signal.

6. The fiber optic jumper interface monitoring device according to claim 5, wherein the amplification processing module is further configured to determine that the first end of the fiber optic jumper is not connected in place with the equipment when the optical power value is greater than a predetermined threshold.

7. The fiber optic jumper interface monitoring device of any of claims 1 to 6, further comprising: the alarm module is connected with the optical power measurement module;

the alarm module is used for sending out an alarm signal under the condition that the first end of the optical fiber jumper is not connected with equipment in place.

8. The fiber optic jumper interface monitoring device of any of claims 1 to 6, wherein the fiber optic jumper is a single mode fiber or a multi-film fiber.

9. The fiber optic jumper interface monitoring device according to claim 7, wherein the wavelength band of the light source matches the type of the fiber optic jumper.

10. An optical communications testing device comprising an optical fiber jumper interface monitoring apparatus according to any of claims 1 to 9.

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