Optical path tester

Abstract

This application discloses an optical path tester, belonging to the field of optical communication technology, used to improve the efficiency of optical path testing. The optical path tester includes: a controller; a dual-channel light source module connected to the controller; and a dual-channel optical power meter module connected to the controller.

Description

Technical Field

[0001] This application belongs to the field of optical communication technology, specifically relating to an optical path tester. Background Technology

[0002] A stable light source refers to a light source whose output optical power, wavelength, and spectral width are all constant. A stable light source emits light with known power and wavelength into an optical system. Combined with an optical power meter, it is used in optical communication technology for tasks such as fiber optic loss measurement, connection loss measurement, and optical receiver sensitivity testing. Currently available equipment for fiber optic testing typically includes a single stable light source. However, when testing multiple fiber optic cables, the testing personnel must test one cable before returning to test another, meaning only one cable can be tested at a time. This is extremely labor-intensive and results in very low fiber optic testing efficiency. Utility Model Content

[0003] This application provides an optical path tester that can solve the problem that only one optical fiber can be tested at a time, which is extremely labor-intensive and results in low efficiency of optical fiber testing.

[0004] This application provides an optical path tester, which includes: a controller; a dual-channel light source module connected to the controller; and a dual-channel optical power meter module connected to the controller.

[0005] In this embodiment, the optical path tester includes: a controller; a dual-source light source module connected to the controller; and a dual-source optical power meter module connected to the controller. Each source of the dual-source light source module can be used to test one optical fiber, enabling simultaneous testing of two optical fibers. Simultaneously, the dual-source optical power meter module can also simultaneously test two optical fibers, increasing the number of optical fibers that can be tested simultaneously and improving testing efficiency. Attached Figure Description

[0006] Figure 1 This is a schematic diagram of the structure of an optical path tester provided in an embodiment of this application;

[0007] Figure 2 This is a circuit connection diagram of an optical path tester provided in an embodiment of this application;

[0008] Figure 3 This is a schematic diagram of another optical path tester provided in an embodiment of this application;

[0009] Figure 4 This is a schematic diagram of the calibration process of a dual-channel optical power meter provided in an embodiment of this application;

[0010] Figure 5This is a schematic diagram of an optical module status diagnosis process provided in an embodiment of this application;

[0011] Figure 6 This is a schematic diagram of another optical path tester provided in an embodiment of this application;

[0012] Figure 7 This is a schematic diagram illustrating the working principle of a light-transmitting pen provided in an embodiment of this application;

[0013] Figure 8 This is a schematic diagram of another optical path tester provided in an embodiment of this application;

[0014] Figure 9 This is a schematic diagram of another optical path tester provided in an embodiment of this application;

[0015] Figure 10 This is a schematic diagram of another optical path tester provided in an embodiment of this application;

[0016] Figure 11 This is a schematic diagram of the workflow of a communication module provided in an embodiment of this application.

[0017] Explanation of reference numerals in the attached figures:

[0018] Optical path tester-100, controller-200, dual-channel light source module-300, dual-channel optical power meter module-400, first optical module-301, second optical module-302, first switch-303, second switch-304, third optical module-401, fourth optical module-402, power supply-500, light pen-600, optical module test module-700, linear charging management chip-800, communication module-900. Detailed Implementation

[0019] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0020] The terms "first," "second," etc., used in the specification and claims of this application are used to distinguish similar objects and not to describe a specific order or sequence. It should be understood that such use of data can be interchanged where appropriate so that embodiments of this application can be implemented in orders other than those illustrated or described herein, and the objects distinguished by "first," "second," etc., are generally of the same class and the number of objects is not limited; for example, a first object can be one or more. Furthermore, in the specification and claims, "and / or" indicates at least one of the connected objects, and the character " / " generally indicates that the preceding and following objects are in an "or" relationship.

[0021] The optical path tester 100 provided in this application will be described in detail below with reference to the accompanying drawings, through specific embodiments and application scenarios.

[0022] Figure 1 This is a schematic diagram of the structure of an optical path tester 100 provided in an embodiment of this application. The optical path tester 100 includes: a controller 200; a dual-channel light source module 300 connected to the controller 200; and a dual-channel optical power meter module 400 connected to the controller 200.

[0023] In some scenarios, during each equipment commissioning, personnel at both the near and far ends of the optical fiber need to be present to communicate the fiber core status via telephone. In underground parking lots with no signal, or when commissioning multiple fiber cores, one person needs to test one core at a time, returning to test the next, which is labor-intensive. During transmission patching, the far-end equipment is often not yet installed, and the near-end equipment has not yet laid pigtails, making it impossible to test whether the received light at both ends meets the standards. Patch technicians struggle due to the lack of a stable light source, making it impossible to test the received and transmitted light power, resulting in an inability to guarantee that the optical attenuation meets the site opening requirements. Only after adding data do they realize that the optical attenuation is substandard. In such cases, a stable light source is urgently needed to assist in testing. Even if a stable light source is purchased, it is expensive; secondly, it can only emit light from one channel, which is very inconvenient; and thirdly, because the emission power of the optical modules to be plugged into the far-end and near-end equipment is unknown, and the emission power of the light source needs to be adjusted accordingly, the commissioning personnel have no way of knowing, resulting in test results that are often of little reference value. To solve the above problems, this application provides an optical path tester 100 including a dual-channel light source module and a dual-channel optical power meter module.

[0024] like Figure 1As shown in the embodiment of this application, the optical path tester 100 uses a dual-channel light source module 300 as a stable light source and also includes a dual-channel optical power meter module 400. Both the dual-channel light source module 300 and the dual-channel optical power meter module 400 are connected to a controller 200. The controller 200 can control the dual-channel light source module 300 and the dual-channel optical power meter module 400 and transmit data. When adjusting optical fibers using this optical path tester 100, each light source of the dual-channel light source module 300 can adjust one optical fiber, enabling simultaneous adjustment of two optical fibers. The dual-channel optical power meter module 400 is an instrument used to measure optical power; it can be used for direct measurement of optical power as well as relative measurement of optical attenuation. In optical fiber measurement, optical power meters are commonly used instruments for heavy-duty applications. By measuring the absolute power of the transmitter or optical network, a single optical power meter can evaluate the performance of optical terminal equipment. By combining the optical power meter module 400 with the light source module 300, connection loss can be measured, continuity verified, and the transmission quality of the fiber optic link can be evaluated. In this embodiment, a dual-channel optical power meter module 400 is used, which can simultaneously test two optical fibers, increasing the number of fibers that can be tested simultaneously. The dual-channel light source module 300 and the dual-channel optical power meter module 400 greatly improve testing efficiency. Two optical paths can be tested simultaneously using these modules. For example, during optical path patching, both paths can emit light simultaneously at end A, and then the received power can be tested at end Z, enabling both paths to be tested at once, with the optical power values ​​meeting the site opening standards.

[0025] In one implementation, the dual-source light source module 300 includes: a first optical module 301, which is connected to the controller 200 via a first I2C bus; and a second optical module 302, which is connected to the controller 200 via a second I2C bus.

[0026] The dual-path light source module 300 provided in this application embodiment includes a first optical module 301 and a second optical module 302. Both the first optical module 301 and the second optical module 302 can be optical modules. The optical modules can emit light and also receive light. This application embodiment uses two optical modules as a dual-path light source module 300 (stable light source). Figure 2 This diagram illustrates a control connection between a first optical module 301, a second optical module 302, and a controller 200, according to an embodiment of this application. Figure 2 As shown, the first optical module 301 can be connected to the controller 200 via the first I2C bus; the second optical module 302 can be connected to the controller 200 via the second I2C bus. In this embodiment, the controller 200 can be an STM32F103C8T6 microcontroller. Figure 2As shown, the STM32F103C8T6 microcontroller communicates with the dual-channel light source module 300 via the I2C bus interface to enable / de-enable the light module, thus achieving a stable dual-channel light source. Simultaneously, the controller 200 can read basic parameters of the first optical module 301 and the second optical module 302 via the first and second I2C buses, such as luminous and luminous power, bias current, light-emitting component temperature, and supply voltage. These parameters can be displayed in real-time on the OLED screen via the I2C bus between the controller 200 and the OLED screen, enabling parameter visualization of the first optical module 301 and the second optical module 302.

[0027] like Figure 2 As shown, the I2C control bus of the first optical module 301 also includes I2C1_SDA and I2C1_SCL. I2C1_SDA is the data transmission and reception terminal, with one end connected to pin 40 of the controller 200 and the other end connected to pin 6 of the first optical module 301. I2C1_SCL is the clock terminal, with one end connected to pin 39 of the controller 200 and the other end connected to pin 7 of the controller 200.

[0028] The I2C control bus of the second optical module 302 also includes I2C2_SDA and I2C2_SCL. I2C2_SDA is the data transmission and reception terminal, with one end connected to pin 28 of the controller 200 and the other end connected to pin 4 of the second optical module 302. I2C1_SCL is the clock terminal, with one end connected to pin 27 of the controller 200 and the other end connected to pin 5 of the controller 200.

[0029] In one implementation, the optical path tester 100 further includes: a first switch 303, which is connected to a power supply 500, a first optical module 301, and a controller 200; and a second switch 304, which is connected to the power supply 500, a second optical module 302, and a controller 200.

[0030] The first optical module 301 and the second optical module 302 are each connected to a switch; that is, the first optical module 301 is connected to the first switch 303, and the second optical module 302 is connected to the second switch 304. Both the first switch 303 and the second switch 304 are connected to the power supply 500 and the controller 200 to achieve power supply control for the first optical module 301 and the second optical module 302. The implementation principle is as follows: Figure 2As shown, the power control circuit of the first optical module 301 is connected at one end to pin 45 of the controller 200, and at the other end through a current-limiting resistor R35. It controls the power supply to the first optical module 301 by controlling transistor Q7 and MOSFET Q6. The first switch 303 in this embodiment includes the aforementioned transistor Q7. When the SFP1_EN signal is high, the first switch 303 is turned on, and 3.3V is applied to pin 16 of the first optical module 301. When the SFP1_EN signal is low, the first switch 303 is turned off, pin 16 of the first optical module 301 is de-energized, and the power supply to the first optical module 301 is disconnected. This allows for power supply control of the first optical module 301.

[0031] like Figure 2 As shown, the power control circuit of the second optical module 302 is connected at one end to pin 46 of the controller 200, and at the other end through a current-limiting resistor R24. It controls the power supply to the second optical module 302 by controlling transistor Q2 and MOSFET Q1. The second switch 304 in this embodiment includes the aforementioned transistor Q2. When the SFP2_EN signal is high, the second switch 304 is turned on, and 3.3V is applied to pin 16 of the second optical module 302. When the SFP1_EN signal is low, the second switch 304 is turned off, pin 16 of the second optical module 302 is de-energized, and the power supply to the second optical module 302 is disconnected. This allows for power supply control of the second optical module 302.

[0032] In one implementation, the controller 200 is connected to the first enable pin of the first optical module 301; the controller 200 is connected to the second enable pin of the second optical module 302.

[0033] In this embodiment, the controller 200 is also connected to the first enable pin of the first optical module 301, such as... Figure 2 As shown, the first enable pin of the first optical module 301 is pin 3. TX_DISABLE_SFP1 is connected to pin 42 of the controller 200, and then connected to pin 3 of the first optical module 301 through a current-limiting resistor. When TX_DISABLE_SFP1 is high, the first optical module 301's light-emitting function is enabled, and the TX port of the first optical module 301 outputs a stable light source. When TX_DISABLE_SFP1 is low, the first optical module 301's light emission is turned off. This allows for the control of the first optical module 301's light emission.

[0034] In this embodiment, the controller 200 is also connected to the second enable pin of the second optical module 302, such as... Figure 2As shown, the second enable pin of the second optical module 302 is pin 3 at this time. TX_DISABLE_SFP1 is connected to pin 30 of the controller 200, and then connected to pin 3 of the second optical module 302 through a current-limiting resistor. When TX_DISABLE_SFP2 is high, the light emission function of the second optical module 302 is turned on, and the TX port of the second optical module 302 outputs a stable light source. When TX_DISABLE_SFP2 is low, the light emission of the second optical module 302 is turned off. This allows for the control of the light emission of the second optical module 302.

[0035] In this embodiment, the controller 200 is connected to the first enable pin of the first optical module 301 and the second enable pin of the second optical module 302, which enables the emission control of the first optical module 301 and the second optical module 302, thereby enabling the optical path tester 100 to emit two stable light sources.

[0036] In one implementation, the controller 200 is connected to the first fault monitoring pin of the first optical module 301; the controller 200 is connected to the second fault monitoring pin of the second optical module 302.

[0037] In this embodiment, the controller 200 can also be connected to the first fault monitoring pin of the first optical module 301 to realize fault monitoring of the first optical module 301, such as... Figure 2 As shown, the first fault monitoring pin may include pin 3 of the first optical module 301. In this case, pin 41 of the controller 200 is connected to pin 3 of the first optical module 301 through a current-limiting resistor R4, allowing the controller 200 to read the status of pin 3 of the first optical module 301. If the first optical module 301 has a light-emitting fault, pin 3 of the first optical module 301 outputs a high level. When pin 41 of the controller 200 detects this high level, it can display the light-emitting fault of the first optical module 301 on the display screen.

[0038] like Figure 2 As shown, the first fault monitoring pin may also include pin 8 of the first optical module 301. Thus, pin 38 of the controller 200 reads the status of the pins of the first optical module 301 through the current-limiting resistor R8. If the first optical module 301 experiences a light reception abnormality alarm, pin 8 of the first optical module 301 outputs a high level, and pin 38 of the controller 200 detects the high level and can display it on the screen; otherwise, it displays "Light Reception Abnormality: Yes" or "Light Reception Abnormality: No".

[0039] In this embodiment, the controller 200 can also be connected to the second fault monitoring pin of the second optical module 302 to realize fault monitoring of the second optical module 302, such as... Figure 2As shown, the second fault monitoring pin may include pin 3 of the second optical module 302. In this case, pin 32 of the controller 200 is connected to pin 3 of the second optical module 302 through a current-limiting resistor R14, allowing the controller 200 to read the status of pin 3 of the second optical module 302. If the second optical module 302 has a light-emitting fault, pin 3 of the second optical module 302 outputs a high level. When pin 41 of the controller 200 detects the high level, it can display the light-emitting fault of the second optical module 302 on the display screen.

[0040] like Figure 2 As shown, the second fault monitoring pin may also include pin 8 of the second optical module 302. Thus, pin 26 of the controller 200 reads the status of the pins of the second optical module 302 through the current-limiting resistor R8. If the second optical module 302 experiences a light reception abnormality alarm, pin 8 of the second optical module 302 outputs a high level, and pin 38 of the controller 200 detects the high level and can display it on the screen; otherwise, it displays "Light Reception Abnormality: Yes" or "Light Reception Abnormality: No".

[0041] In one implementation, the dual-channel optical power meter module 400 includes: a third optical module 401, which is connected to the controller 200 via a third I2C bus; and a fourth optical module 402, which is connected to the controller 200 via a fourth I2C bus.

[0042] like Figure 3 As shown, in this embodiment, the dual-channel optical power meter module 400 includes: a third optical module 401, which is connected to the controller 200 via a third I2C bus; and a fourth optical module 402, which is connected to the controller 200 via a fourth I2C bus. Since optical modules have both light-receiving and light-emitting functions, the third optical module 401 and the fourth optical module 402 in this embodiment can also be optical modules. The controller 200 can communicate with the third I2C bus interface of the third optical module 401 and with the fourth I2C bus interface of the fourth optical module 402. The controller 200 can read the optical power values ​​received by the third optical module 401 and the fourth optical module 402, correct the measurement results using an adaptive algorithm, and display them in real time on an OLED screen. The process is as follows: Figure 4 As shown, the accurate light received value obtained by the dual-channel optical power meter module 400 is obtained, and then the accurate light received value obtained by the dual-channel optical power meter module 400 is compared with the value preset by the network management system. If the two are different, the calibration coefficient is calculated and the calibration algorithm is applied to calibrate the dual-channel optical power meter module 400 so that the dual-channel optical power meter module 400 outputs the correct light received value.

[0043] In this embodiment, an optical module (dual-channel light source module 300) and a dual-channel optical power meter module 400 are used as a stable light source. A controller 200 communicates with the optical module via its I2C bus interface. The controller 200 dynamically controls the bias current of the optical module to control its luminous power, forming a negative feedback loop automatic power control (APC) circuit to achieve stable luminous power. Simultaneously, a thermistor and a semiconductor cooler are used to form an automatic temperature control (ATC) circuit to control the ambient temperature of the light-emitting device within a certain range. The luminous power value is then displayed in real-time on the OLED screen.

[0044] Furthermore, the optical modules used in this embodiment can be SFP optical modules, serving as a dual-channel light source module 300 and a dual-channel optical power meter module 400 for receiving light. High-precision testing can be achieved, ensuring that the test results are essentially consistent with the data values ​​acquired from the backend. The errors in both emitted and received optical power are less than 0.5 dBm, exhibiting higher accuracy than general light sources and optical power meters. Because both emitted and received optical power are obtained from the internal data of the same type of optical module and calibrated, the testing principle is the same as the principle of remotely reading optical power values ​​from the backend, resulting in higher accuracy and smaller errors. Multiple light sources and optical power meters can be designed as needed.

[0045] In one implementation, since the first optical module 301 and the second optical module 302 of the dual-path light source module 300, and the third optical module 401 and the fourth optical module 402 of the dual-path optical power meter module 400 are all optical modules, this embodiment can also determine the working status of the optical modules by reading their digital diagnostic monitoring (DDM). This means determining the working status of the first optical module 301, the second optical module 302, the third optical module, and the fourth optical module 402.

[0046] Optical modules all support Digital Diagnostic Monitoring (DDM) functionality, which can monitor optical module parameters (such as operating temperature, transmit optical power, and receive optical power) in real time. This allows for fault prediction and location, and determination of the optical module's condition. Based on the SFF-8472 protocol, the optical module's internal code consists of 384 bytes, with the first 128 bits being A0H and the last 128 bits being A2H.

[0047] For example, the optical module's emission and reception power can be read to determine if it is functioning correctly; the bias current of the laser generator in the optical module can be read to determine the degree of aging of the laser generator. If the bias current exceeds the normal range, it indicates that the laser generator is aging or damaged. If the power supply voltage and temperature of the optical module exceed normal values, it indicates an internal fault in the optical module. Specifically, such as... Figure 5As shown, the system first checks the status of the optical module. If the optical module is in normal condition, routine diagnostics are performed and the results are recorded. If the optical module is in abnormal condition, fault diagnostics are performed and the fault information is recorded. Based on the diagnostic results, it can be determined whether the optical module requires maintenance, and maintenance is performed or not based on the result.

[0048] In this embodiment of the application, the quality of the optical module can also be determined by the alarm signal output from the interface pin of the optical module.

[0049] TX-FAULT pin: Used to indicate whether a serious fault has occurred in the optical module. When a fault occurs, a high level on TX-FAULT means that the module can no longer operate, such as due to excessive voltage, laser EOL, etc.

[0050] The RX-LOS pin is used to indicate whether the optical module is receiving a signal correctly. When a correct signal is received, RX-LOS is high.

[0051] If the TX-FAULT pin is high, the display will show "Light emission abnormality: Yes". If the RX-LOS pin is low, the display will show "Light reception abnormality: Yes".

[0052] Since the first optical module 301 and the second optical module 302 of the dual-channel light source module 300, and the third optical module 401 and the fourth optical module 402 of the dual-channel optical power meter module 400 are all optical modules, the diagnostic methods for optical modules described in the embodiments of this application are applicable to the first optical module 301 and the second optical module 302 of the dual-channel light source module 300, and the third optical module 401 and the fourth optical module 402 of the dual-channel optical power meter module 400.

[0053] In one implementation, the optical path tester 100 further includes a light pen 600, which is connected to the controller 200.

[0054] Current equipment testing often requires carrying a light pen, optical power meter, stable light source, multimeter, and flashlight, which is inconvenient to carry and switch between. There is currently no equipment that integrates a red light pen, optical power meter, stable light source, optical module testing, and multimeter.

[0055] like Figure 6As shown in the embodiment of this application, the optical path tester 100 also includes a light pen 600, which is connected to the controller 200 to realize the control and data transmission of the light pen 600. The light pen 600 is also called a red light pen, pen-type red light source, visible light detection pen, fiber optic fault detector, fiber optic fault locator, etc., and is mostly used to detect fiber optic breaks. The light pen emits stable red light driven by a constant current source, which is connected to the optical interface and enters the optical fiber, thereby realizing the detection of fiber optic connectivity and the location of faults such as fiber breakage and bending; fault inspection in the dead zone of optical time domain reflectometer (OTDR); end-to-end fiber identification; and optimization of mechanical splice points. The red light integrated in this embodiment has a power of 40mW, a wavelength of 650nm, and a theoretical distance of 40km. The red light distance of a typical red light pen is 5-10km.

[0056] like Figure 7 As shown, this application utilizes a 650nm red laser tube as a universal red light source (light pen 600). The laser tube's emission is controlled by an STM32F103C8T6 microcontroller's I / O port and a switching transistor. The emission power is dynamically adjusted via PWM pulse width modulation, achieving adjustable power from 0-40mW. The on / off status of the laser light is displayed on an OLED screen. The optical path tester 100 provided in this embodiment may also include a multimeter, a magnetic bracket, and other expansion components. In daily construction work, one hand needs to hold the equipment, and the other the fiber core; in confined, dark spaces, a light is also needed; and remote testing requires a mobile phone call. The magnetic bracket allows the equipment to be attached to racks, cable trays, or cabinet doors, freeing up one hand. The multimeter function includes low-voltage DC measurement capabilities, thus enabling the optical path tester 100 to integrate multiple functions.

[0057] In one implementation, the optical path tester 100 further includes an optical module test module 700, which is connected to the controller 200.

[0058] In some scenarios, the condition of an optical module can only be determined through alarms from the network management system. In actual operation, weak light reception from an optical module is often suspected to be a problem with the optical path. The optical path is addressed first, and only after multiple replacements do the weak light persist, leading to suspicion of an optical module failure – a significant waste of manpower and resources. Fluctuations in the optical module's bias current or wavelength mismatch between the two sides can cause incoordination between the ports, resulting in service interruptions. In field conditions, equipment or transmission problems are often suspected.

[0059] Therefore, in this embodiment of the application, an optical path tester 100 including an optical module test module 700 is provided, such as... Figure 8As shown, the optical path tester 100 also includes an optical module test module 700, which is connected to the controller 200. This optical module test module 700 can be a handheld optical module tester, capable of testing the optical module's receive alarm signal (RX-LOS), emitter alarm signal (TX-FAULT), wavelength, receive and emitter power, temperature, internal power supply voltage, laser bias current, manufacturing date, and manufacturer. This enables the optical module to be tested at any time.

[0060] In one implementation, the optical path tester 100 further includes a linear charging management chip 800, which is connected to the power supply 500 of the optical path tester 100.

[0061] In some scenarios, red light pens and light power meters often run out of power due to accidental touches or prolonged use when kept in bags. When they arrive at the work location, they find that they are out of power, making it inconvenient to buy batteries and lacking suitable chargers (light power meters or red light pens with charging functions often use dedicated charging heads and chargers, with inconsistent charging ports, voltages, and power), which affects work efficiency.

[0062] To address the aforementioned issues, this application provides an optical path tester 100 including a linear charging management chip 800, such as... Figure 9 As shown, the linear charging management chip 800 is connected to the power supply 500 of the optical path tester 100. This case uses the linear charging management chip 800 for linear lithium-ion batteries, which has a complete three-stage charging mode of trickle / constant current / constant voltage, a maximum charging current of 2A, and supports fast charging.

[0063] When operating under high voltage, high energy, or in environments with high temperatures, the temperature control circuit automatically controls the charging current to reduce the chip temperature, prevent thermal failure, increase the reliability of chip operation, and ensure the lifespan of the power supply (lithium battery).

[0064] Employing an 800mA linear power supply chip, it boasts higher operating current and lower power consumption. Under extreme usage conditions (maximum power emission from both optical modules + red light emission), a single charge provides continuous power for 48 hours; under normal usage conditions, a single charge lasts 2-3 months. When powered off, the static leakage current is less than 10μA, eliminating concerns about battery depletion during prolonged periods of inactivity. In this embodiment, the latest Type-C interface can be used, allowing charging with a standard mobile phone charger or power bank. This overcomes the shortcomings of traditional optical power meters, red light pens, and stable light sources that require dedicated charging cables and chargers. In this embodiment, the power supply 500 of the optical path tester 100 also has an external discharge function. In some scenarios, the optical path tester 100 can function as a power bank to charge other tools, facilitating multi-purpose use by maintenance personnel.

[0065] In one implementation, the optical path tester 100 further includes a communication module 900, which is connected to the controller 200, the dual-channel light source module 300, and the dual-channel optical power meter module 400.

[0066] In routine construction work, it's necessary to hold the equipment in one hand and the fiber optic core in the other, and remote testing requires a mobile phone call. To solve this problem, this application also provides an optical path tester 100 including a communication module 900. Figure 10 As shown, the communication module 900 can connect to the controller 200, the dual-channel light source module 300, and the dual-channel optical power meter module 400. This communication module 900 can be a 4G communication module 900, a 5G communication module 900, etc., and has the function of remotely controlling the dual-channel optical power meter module 400, enabling remote control of optical power on / off, reading the remote receiver and receiver power, and remotely shutting down the device. Specifically, as... Figure 11 As shown, the remote device can send remote control commands. After receiving the commands, the communication module 900 can send control signals to the dual-channel optical power meter module 400. The dual-channel optical power meter module 400 can perform corresponding operations, such as shutting down or recording the results. Thus, through the communication module 900, the dual-channel optical power meter module 400 can be remotely controlled, enabling remote control of optical power on / off, reading of remote receiver and receiver power, and remote shutdown of the device. This allows for remote optical path testing of the optical path using the remote optical path tester 100, enabling one person to perform optical path testing on two devices simultaneously.

[0067] The optical path tester 100 provided in this application embodiment is applicable to scenarios such as optical path debugging of wireless professional base station equipment, handling of optical path faults in wireless professional maintenance base stations, optical path patching during transmission professional construction and maintenance, and optical path patching and maintenance for enterprise and home customers. The collaborative working principle between various functional modules is as follows: a dual-path light source module 300 is used as a stable light source, and an optical module is used as a dual-path optical power meter module 400, improving debugging efficiency. Communication between the STM32F103C8T6 microcontroller and the optical module interface enables / disables the optical module from emitting light, achieving a stable light source. Simultaneously, the I2C bus is used to read the basic parameters of the optical module in real time (received and received power, bias current, light-emitting component temperature, supply voltage, etc.), and these parameters are displayed in real time on the OLED screen via the I2C bus between the OLED screen and the microcontroller. The SFP1TX_FAULT and SFP1_LOS pins of the microcontroller are used to monitor optical module faults. The microcontroller can also control the on / off state of the red light pen to detect fiber connectivity and locate faults such as fiber breaks and bends. The 4G communication module 900 enables information exchange and remote control, allowing one person to handle optical path faults with two devices, saving manpower and communication costs.

[0068] The embodiments of this application have been described above with reference to the accompanying drawings. However, this application is not limited to the specific embodiments described above. The specific embodiments described above are merely illustrative and not restrictive. Those skilled in the art can make many other forms under the guidance of this application without departing from the spirit and scope of the claims, and all of these forms are within the protection scope of this application.

Claims

1. An optical path tester characterized by comprising: include: Controller; A dual-channel light source module, wherein the dual-channel light source module is connected to the controller; A dual-channel optical power meter module, wherein the dual-channel optical power meter module is connected to the controller; The dual-source light source module includes: A first optical module is connected to the controller via a first I2C bus; The second optical module is connected to the controller via a second I2C bus; The dual-channel optical power meter module includes: The third optical module is connected to the controller via a third I2C bus; The fourth optical module is connected to the controller via a fourth I2C bus.

2. The optical pathlength tester of claim 1, wherein, The optical path tester also includes: A first switch, which connects to the power supply, the first optical module, and the controller; The second switch is connected to the power supply, the second optical module, and the controller.

3. The optical pathlength tester of claim 1, wherein, The controller is connected to the first enable pin of the first optical module; The controller is connected to the second enable pin of the second optical module.

4. The optical pathlength tester of claim 1, wherein, The controller is connected to the first fault monitoring pin of the first optical module; The controller is connected to the second fault monitoring pin of the second optical module.

5. The optical path test set of claim 1, wherein, The optical path tester also includes: A light-transmitting pen, which is connected to the controller.

6. The optical path test set of claim 1, wherein, The optical path tester also includes: An optical module testing module is connected to the controller.

7. The optical pathlength tester of claim 1, wherein, The optical path tester also includes: A linear charging management chip, which is connected to the power supply of the optical path tester.

8. The optical path test set of claim 1, wherein, The optical path tester also includes a communication module, which is connected to the controller, the dual-channel light source module, and the dual-channel optical power meter module.

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