CN112611452A - High-rate PON/optical module receiving avalanche diode testing method - Google Patents
High-rate PON/optical module receiving avalanche diode testing method Download PDFInfo
- Publication number
- CN112611452A CN112611452A CN202011444449.9A CN202011444449A CN112611452A CN 112611452 A CN112611452 A CN 112611452A CN 202011444449 A CN202011444449 A CN 202011444449A CN 112611452 A CN112611452 A CN 112611452A
- Authority
- CN
- China
- Prior art keywords
- information
- avalanche
- pulse
- bias voltage
- reverse bias
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 230000003287 optical effect Effects 0.000 title claims abstract description 32
- 238000012360 testing method Methods 0.000 title claims abstract description 8
- 238000001514 detection method Methods 0.000 claims abstract description 55
- 238000000034 method Methods 0.000 claims abstract description 10
- 230000001105 regulatory effect Effects 0.000 claims description 18
- 238000010998 test method Methods 0.000 claims description 5
- 230000008569 process Effects 0.000 abstract description 6
- 230000002159 abnormal effect Effects 0.000 abstract description 3
- 230000035945 sensitivity Effects 0.000 description 6
- 230000008859 change Effects 0.000 description 4
- 230000004044 response Effects 0.000 description 3
- 230000003595 spectral effect Effects 0.000 description 3
- 238000005259 measurement Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
Images
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
- G01J1/00—Photometry, e.g. photographic exposure meter
- G01J1/42—Photometry, e.g. photographic exposure meter using electric radiation detectors
- G01J1/44—Electric circuits
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/26—Testing of individual semiconductor devices
- G01R31/2601—Apparatus or methods therefor
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
- G01J1/00—Photometry, e.g. photographic exposure meter
- G01J1/42—Photometry, e.g. photographic exposure meter using electric radiation detectors
- G01J1/44—Electric circuits
- G01J2001/4446—Type of detector
- G01J2001/446—Photodiode
- G01J2001/4466—Avalanche
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Optical Communication System (AREA)
Abstract
The invention discloses a method for testing a receiving avalanche diode of a high-speed PON/optical module. The invention sets corresponding detection devices for the temperature, reverse bias voltage and pulse required by the normal work of the avalanche diode and the avalanche state of the avalanche diode, and can master the work state of the avalanche diode in real time; meanwhile, the corresponding judgment device is arranged, secondary judgment is carried out in the judgment process, unnecessary loss caused by invalid misoperation of subsequent actions due to accidental errors of the judgment device is avoided, and the adjustment accuracy of temperature, reverse bias voltage, pulse and the like is greatly improved. Whether each adjusting link has a fault or not can be mastered in real time through the matching of the timing device and the alarm device, and an alarm is given when a relevant adjusting fault occurs; and field workers can find abnormal processing in time, so that unnecessary loss in the follow-up process is avoided.
Description
Technical Field
The invention belongs to the technical field of optical power detection, and particularly relates to a method for testing a receiving avalanche diode of a high-rate PON/optical module.
Background
At present, a commonly used optical power meter mainly utilizes the resistance value or current change of a photosensitive or thermosensitive device to realize the measurement of optical power, that is, different currents are output along with the change of optical power when facing light sources with different powers, and the optical power is detected through the currents. The optical power meter has the advantages of flat spectral response curve and low cost, but has very limited sensitivity, and generally can only respond to the magnitude of pw at most. Even the improved light detection device based on the avalanche photodiode APD can only be used for photon counting, and the detected photons are "present" or "absent", and the intensity of the optical signal cannot be directly distinguished, so that how to utilize the APD high sensitivity in the avalanche state to perform power detection and improve the detection accuracy is currently a very important issue.
Therefore, a high-rate PON/optical module receiving avalanche diode test method needs to be designed at present to solve the above problems.
Disclosure of Invention
The invention aims to provide a high-rate PON/optical module receiving avalanche diode testing method, which is used for solving the technical problems in the prior art, such as: the commonly used optical power meter mainly utilizes the resistance value or current change of a photosensitive or thermosensitive device to realize the measurement of optical power, namely, different currents are output along with the change of the optical power when facing light sources with different powers, and the optical power is detected through the currents. The optical power meter has the advantages of flat spectral response curve and low cost, but has very limited sensitivity, and generally can only respond to the magnitude of pw at most. Even the improved light detection device based on the avalanche photodiode APD can only be used for photon counting, and the detected photons are "present" or "absent", and the intensity of the optical signal cannot be directly distinguished, so that how to utilize the APD high sensitivity in the avalanche state to perform power detection and improve the detection accuracy is currently a very important issue.
In order to achieve the purpose, the technical scheme of the invention is as follows:
the high-rate PON/optical module receiving avalanche diode testing method comprises the following steps:
s1: providing a temperature adjusting device for adjusting the temperature of the avalanche diode to the working temperature; providing a temperature detection device, and detecting the temperature of the avalanche diode in real time to obtain real-time temperature information of the avalanche diode; providing a standard temperature storage device for storing standard temperature information when the avalanche diode works normally;
providing a temperature judgment device, performing first temperature judgment on the real-time temperature information and the standard temperature information through a common judgment unit, if the first temperature judgment result is that the real-time temperature information is matched with the standard temperature information, taking the first temperature judgment result as an actual temperature judgment result, setting the temperature regulation device to be in a constant mode, turning off the temperature detection device, and entering step S2; if the first temperature judgment result is that the real-time temperature information is not matched with the standard temperature information; performing second temperature judgment on the real-time temperature information and the standard temperature information through a standby judgment unit, if the second temperature judgment result is that the real-time temperature information is matched with the standard temperature information, setting the temperature regulation device to be in a constant mode by taking the second temperature judgment result as an actual temperature judgment result, turning off the temperature detection device, and entering step S2; if the second temperature judgment result is that the real-time temperature information is not matched with the standard temperature information, the second temperature judgment result is taken as an actual temperature judgment result, and the temperature adjusting device and the temperature detecting device are controlled to be continuously started;
s2: providing a reverse bias voltage regulating device for providing a reverse bias voltage for the avalanche diode; providing a reverse bias voltage detection device, and detecting the reverse bias voltage of the avalanche diode in real time to obtain real-time reverse bias voltage information of the avalanche diode; providing a standard reverse bias voltage storage device for storing standard reverse bias voltage information when the avalanche diode works normally;
providing a reverse bias voltage judgment device, performing first reverse bias voltage judgment on the real-time reverse bias voltage information and the standard reverse bias voltage information through a common judgment unit, setting a reverse bias voltage regulation device to be in a constant mode if the first reverse bias voltage judgment result shows that the real-time reverse bias voltage information is matched with the standard reverse bias voltage information, turning off a reverse bias voltage detection device, and entering step S3; if the first reverse bias voltage judgment result is that the real-time reverse bias voltage information is not matched with the standard reverse bias voltage information; performing secondary reverse bias voltage judgment on the real-time reverse bias voltage information and the standard reverse bias voltage information through a standby judgment unit, setting a reverse bias voltage regulation device to be in a constant mode, turning off a reverse bias voltage detection device if the secondary reverse bias voltage judgment result is that the real-time reverse bias voltage information is matched with the standard reverse bias voltage information, and entering step S3; if the second reverse bias voltage judgment result is that the real-time reverse bias voltage information is not matched with the standard reverse bias voltage information, the second reverse bias voltage judgment result is taken as an actual reverse bias voltage judgment result to control the reverse bias voltage regulating device and the reverse bias voltage detection device to be continuously started;
s3: providing a pulse adjusting device for providing pulses for the avalanche diode; providing a pulse detection device, and detecting the pulse of the avalanche diode in real time to obtain real-time pulse information of the avalanche diode; providing a standard pulse storage device for storing standard pulse information when the avalanche diode works normally;
providing a pulse judgment device, performing first pulse judgment on the real-time pulse information and the standard pulse information through a common judgment unit, if the first pulse judgment result is that the real-time pulse information is matched with the standard pulse information, taking the first pulse judgment result as an actual pulse judgment result, setting a pulse regulation device to be in a constant mode, turning off a pulse detection device, and entering step S4; if the first pulse judgment result is that the real-time pulse information is not matched with the standard pulse information; performing second pulse judgment on the real-time pulse information and the standard pulse information through a standby judgment unit, if the second pulse judgment result is that the real-time pulse information is matched with the standard pulse information, setting a pulse adjusting device to be in a constant mode by taking the second pulse judgment result as an actual pulse judgment result, closing a pulse detection device, and entering step S4; if the second pulse judgment result is that the real-time pulse information is not matched with the standard pulse information, the second pulse judgment result is taken as an actual pulse judgment result, and the pulse adjusting device and the pulse detecting device are controlled to be continuously started;
s4: providing an avalanche state regulating device for providing an avalanche state for the avalanche diode; providing an avalanche state detection device, and detecting the avalanche state of the avalanche diode in real time to obtain real-time avalanche state information of the avalanche diode; providing a standard avalanche state storage device for storing standard avalanche state information when the avalanche diode works normally;
providing an avalanche state judgment device, performing first avalanche state judgment on the real-time avalanche state information and the standard avalanche state information through a common judgment unit, setting an avalanche state regulation device to be in a constant mode, closing an avalanche state detection device and entering step S5, wherein if the first avalanche state judgment result is that the real-time avalanche state information is matched with the standard avalanche state information, the first avalanche state judgment result is taken as an actual avalanche state judgment result; if the first avalanche state judgment result is that the real-time avalanche state information is not matched with the standard avalanche state information; performing second avalanche state judgment on the real-time avalanche state information and the standard avalanche state information through a standby judgment unit, setting an avalanche state regulation device to be in a constant mode by taking the second avalanche state judgment result as an actual avalanche state judgment result if the second avalanche state judgment result is that the real-time avalanche state information is matched with the standard avalanche state information, closing an avalanche state detection device, and entering step S5; if the second avalanche state judgment result is that the real-time avalanche state information is not matched with the standard avalanche state information, the second avalanche state judgment result is taken as an actual avalanche state judgment result, and the avalanche state adjusting device and the avalanche state detecting device are controlled to be continuously started;
s5: and providing a light power detection device for detecting the output end signal of the avalanche diode so as to obtain the light power of the light sources with different power.
Further, on the basis of step S1, providing a timing device, a temperature alarm device and a temperature adjustment time storage device;
when the temperature adjusting device is started, the timing device starts timing at the same time;
the temperature regulation time storage device stores standard temperature regulation time consumed for regulating the temperature of the avalanche diode from an initial state to a standard temperature;
and when the actual temperature adjusting time of the timing device reaches the standard temperature adjusting time and the actual temperature information of the avalanche diode is not matched with the standard temperature information, the temperature alarm device gives out temperature alarm.
Further, on the basis of step S2, providing a timing device, a reverse bias voltage alarm device and a reverse bias voltage adjusting time storage device;
when the reverse bias voltage adjusting device is started, the timing device starts timing at the same time;
the reverse bias voltage adjustment time storage means stores a standard reverse bias voltage adjustment time required to be consumed for adjusting the reverse bias voltage of the avalanche diode from an initial state to a standard reverse bias voltage;
and when the actual reverse bias voltage adjusting time of the timing device reaches the standard reverse bias voltage adjusting time and the actual reverse bias voltage information of the avalanche diode is not matched with the standard reverse bias voltage information, the reverse bias voltage alarm device gives a reverse bias voltage alarm.
Further, on the basis of step S3, providing a timing device, a pulse alarm device and a pulse adjusting time storage device;
when the pulse adjusting device is started, the timing device starts timing at the same time;
the pulse adjusting time storage device stores standard pulse adjusting time consumed for adjusting the avalanche diode pulse from an initial state to a standard pulse;
and when the actual pulse adjusting time of the timing device reaches the standard pulse adjusting time and the actual pulse information of the avalanche diode is not matched with the standard pulse information, the pulse alarm device carries out pulse alarm.
Further, on the basis of step S4, providing a timing device, an avalanche state alarm device and an avalanche state adjustment time storage device;
when the avalanche state adjusting device is started, the timing device also starts timing at the same time;
an avalanche state adjustment time storage means for storing a standard avalanche state adjustment time to be consumed for adjusting an avalanche state of the avalanche diode from an initial state to a standard avalanche state;
and when the actual avalanche state regulating time of the timing device reaches the standard avalanche state regulating time and the actual avalanche state information of the avalanche diode is not matched with the standard avalanche state information, the avalanche state alarm device alarms in the avalanche state.
Compared with the prior art, the invention has the beneficial effects that:
one innovation point of the scheme is that corresponding detection devices are arranged for the temperature, the reverse bias voltage and the pulse required by the normal work of the avalanche diode and the avalanche state of the avalanche diode, so that the working state of the avalanche diode can be mastered in real time; meanwhile, the corresponding judgment device is arranged, secondary judgment is carried out in the judgment process, unnecessary loss caused by invalid misoperation of subsequent actions due to accidental errors of the judgment device is avoided, and the adjustment accuracy of temperature, reverse bias voltage, pulse and the like is greatly improved. Whether each adjusting link has a fault or not can be mastered in real time through the matching of the timing device and the alarm device, and an alarm is given when a relevant adjusting fault occurs; and field workers can find abnormal processing in time, so that unnecessary loss in the follow-up process is avoided.
Drawings
FIG. 1 is a schematic flow chart of the steps of an embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention are clearly and completely described below with reference to fig. 1 of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example (b):
in the prior art, a commonly used optical power meter mainly uses resistance values or current changes of photosensitive or thermosensitive devices to measure optical power, that is, different currents are output along with changes of optical power when facing light sources with different powers, and the optical power is detected through the currents. The optical power meter has the advantages of flat spectral response curve and low cost, but has very limited sensitivity, and generally can only respond to the magnitude of pw at most. Even the improved light detection device based on the avalanche photodiode APD can only be used for photon counting, and the detected photons are "present" or "absent", and the intensity of the optical signal cannot be directly distinguished, so that how to utilize the APD high sensitivity in the avalanche state to perform power detection and improve the detection accuracy is currently a very important issue.
As shown in fig. 1, a method for testing a high-rate PON/optical module receiving avalanche diode is proposed, which includes the following steps:
s1: providing a temperature adjusting device for adjusting the temperature of the avalanche diode to the working temperature; providing a temperature detection device, and detecting the temperature of the avalanche diode in real time to obtain real-time temperature information of the avalanche diode; providing a standard temperature storage device for storing standard temperature information when the avalanche diode works normally;
providing a temperature judgment device, performing first temperature judgment on the real-time temperature information and the standard temperature information through a common judgment unit, if the first temperature judgment result is that the real-time temperature information is matched with the standard temperature information, taking the first temperature judgment result as an actual temperature judgment result, setting the temperature regulation device to be in a constant mode, turning off the temperature detection device, and entering step S2; if the first temperature judgment result is that the real-time temperature information is not matched with the standard temperature information; performing second temperature judgment on the real-time temperature information and the standard temperature information through a standby judgment unit, if the second temperature judgment result is that the real-time temperature information is matched with the standard temperature information, setting the temperature regulation device to be in a constant mode by taking the second temperature judgment result as an actual temperature judgment result, turning off the temperature detection device, and entering step S2; if the second temperature judgment result is that the real-time temperature information is not matched with the standard temperature information, the second temperature judgment result is taken as an actual temperature judgment result, and the temperature adjusting device and the temperature detecting device are controlled to be continuously started;
s2: providing a reverse bias voltage regulating device for providing a reverse bias voltage for the avalanche diode; providing a reverse bias voltage detection device, and detecting the reverse bias voltage of the avalanche diode in real time to obtain real-time reverse bias voltage information of the avalanche diode; providing a standard reverse bias voltage storage device for storing standard reverse bias voltage information when the avalanche diode works normally;
providing a reverse bias voltage judgment device, performing first reverse bias voltage judgment on the real-time reverse bias voltage information and the standard reverse bias voltage information through a common judgment unit, setting a reverse bias voltage regulation device to be in a constant mode if the first reverse bias voltage judgment result shows that the real-time reverse bias voltage information is matched with the standard reverse bias voltage information, turning off a reverse bias voltage detection device, and entering step S3; if the first reverse bias voltage judgment result is that the real-time reverse bias voltage information is not matched with the standard reverse bias voltage information; performing secondary reverse bias voltage judgment on the real-time reverse bias voltage information and the standard reverse bias voltage information through a standby judgment unit, setting a reverse bias voltage regulation device to be in a constant mode, turning off a reverse bias voltage detection device if the secondary reverse bias voltage judgment result is that the real-time reverse bias voltage information is matched with the standard reverse bias voltage information, and entering step S3; if the second reverse bias voltage judgment result is that the real-time reverse bias voltage information is not matched with the standard reverse bias voltage information, the second reverse bias voltage judgment result is taken as an actual reverse bias voltage judgment result to control the reverse bias voltage regulating device and the reverse bias voltage detection device to be continuously started;
s3: providing a pulse adjusting device for providing pulses for the avalanche diode; providing a pulse detection device, and detecting the pulse of the avalanche diode in real time to obtain real-time pulse information of the avalanche diode; providing a standard pulse storage device for storing standard pulse information when the avalanche diode works normally;
providing a pulse judgment device, performing first pulse judgment on the real-time pulse information and the standard pulse information through a common judgment unit, if the first pulse judgment result is that the real-time pulse information is matched with the standard pulse information, taking the first pulse judgment result as an actual pulse judgment result, setting a pulse regulation device to be in a constant mode, turning off a pulse detection device, and entering step S4; if the first pulse judgment result is that the real-time pulse information is not matched with the standard pulse information; performing second pulse judgment on the real-time pulse information and the standard pulse information through a standby judgment unit, if the second pulse judgment result is that the real-time pulse information is matched with the standard pulse information, setting a pulse adjusting device to be in a constant mode by taking the second pulse judgment result as an actual pulse judgment result, closing a pulse detection device, and entering step S4; if the second pulse judgment result is that the real-time pulse information is not matched with the standard pulse information, the second pulse judgment result is taken as an actual pulse judgment result, and the pulse adjusting device and the pulse detecting device are controlled to be continuously started;
s4: providing an avalanche state regulating device for providing an avalanche state for the avalanche diode; providing an avalanche state detection device, and detecting the avalanche state of the avalanche diode in real time to obtain real-time avalanche state information of the avalanche diode; providing a standard avalanche state storage device for storing standard avalanche state information when the avalanche diode works normally;
providing an avalanche state judgment device, performing first avalanche state judgment on the real-time avalanche state information and the standard avalanche state information through a common judgment unit, setting an avalanche state regulation device to be in a constant mode, closing an avalanche state detection device and entering step S5, wherein if the first avalanche state judgment result is that the real-time avalanche state information is matched with the standard avalanche state information, the first avalanche state judgment result is taken as an actual avalanche state judgment result; if the first avalanche state judgment result is that the real-time avalanche state information is not matched with the standard avalanche state information; performing second avalanche state judgment on the real-time avalanche state information and the standard avalanche state information through a standby judgment unit, setting an avalanche state regulation device to be in a constant mode by taking the second avalanche state judgment result as an actual avalanche state judgment result if the second avalanche state judgment result is that the real-time avalanche state information is matched with the standard avalanche state information, closing an avalanche state detection device, and entering step S5; if the second avalanche state judgment result is that the real-time avalanche state information is not matched with the standard avalanche state information, the second avalanche state judgment result is taken as an actual avalanche state judgment result, and the avalanche state adjusting device and the avalanche state detecting device are controlled to be continuously started;
s5: and providing a light power detection device for detecting the output end signal of the avalanche diode so as to obtain the light power of the light sources with different power.
In the scheme, corresponding detection devices are arranged for the temperature, the reverse bias voltage and the pulse required by the normal work of the avalanche diode and the avalanche state of the avalanche diode, so that the working state of the avalanche diode can be mastered in real time; meanwhile, the corresponding judgment device is arranged, secondary judgment is carried out in the judgment process, unnecessary loss caused by invalid misoperation of subsequent actions due to accidental errors of the judgment device is avoided, and the adjustment accuracy of temperature, reverse bias voltage, pulse and the like is greatly improved.
Further, on the basis of step S1, providing a timing device, a temperature alarm device and a temperature adjustment time storage device;
when the temperature adjusting device is started, the timing device starts timing at the same time;
the temperature regulation time storage device stores standard temperature regulation time consumed for regulating the temperature of the avalanche diode from an initial state to a standard temperature;
and when the actual temperature adjusting time of the timing device reaches the standard temperature adjusting time and the actual temperature information of the avalanche diode is not matched with the standard temperature information, the temperature alarm device gives out temperature alarm.
Further, on the basis of step S2, providing a timing device, a reverse bias voltage alarm device and a reverse bias voltage adjusting time storage device;
when the reverse bias voltage adjusting device is started, the timing device starts timing at the same time;
the reverse bias voltage adjustment time storage means stores a standard reverse bias voltage adjustment time required to be consumed for adjusting the reverse bias voltage of the avalanche diode from an initial state to a standard reverse bias voltage;
and when the actual reverse bias voltage adjusting time of the timing device reaches the standard reverse bias voltage adjusting time and the actual reverse bias voltage information of the avalanche diode is not matched with the standard reverse bias voltage information, the reverse bias voltage alarm device gives a reverse bias voltage alarm.
Further, on the basis of step S3, providing a timing device, a pulse alarm device and a pulse adjusting time storage device;
when the pulse adjusting device is started, the timing device starts timing at the same time;
the pulse adjusting time storage device stores standard pulse adjusting time consumed for adjusting the avalanche diode pulse from an initial state to a standard pulse;
and when the actual pulse adjusting time of the timing device reaches the standard pulse adjusting time and the actual pulse information of the avalanche diode is not matched with the standard pulse information, the pulse alarm device carries out pulse alarm.
Further, on the basis of step S4, providing a timing device, an avalanche state alarm device and an avalanche state adjustment time storage device;
when the avalanche state adjusting device is started, the timing device also starts timing at the same time;
an avalanche state adjustment time storage means for storing a standard avalanche state adjustment time to be consumed for adjusting an avalanche state of the avalanche diode from an initial state to a standard avalanche state;
and when the actual avalanche state regulating time of the timing device reaches the standard avalanche state regulating time and the actual avalanche state information of the avalanche diode is not matched with the standard avalanche state information, the avalanche state alarm device alarms in the avalanche state.
In the scheme, whether each adjusting link has a fault or not can be mastered in real time through the cooperation of the timing device and the alarm device, and an alarm is given when a relevant adjusting fault occurs; and field workers can find abnormal processing in time, so that unnecessary loss in the follow-up process is avoided.
The above are preferred embodiments of the present invention, and all changes made according to the technical scheme of the present invention that produce functional effects do not exceed the scope of the technical scheme of the present invention belong to the protection scope of the present invention.
Claims (5)
1. The method for testing the receiving avalanche diode of the high-rate PON/optical module is characterized by comprising the following steps of:
s1: providing a temperature adjusting device for adjusting the temperature of the avalanche diode to the working temperature; providing a temperature detection device, and detecting the temperature of the avalanche diode in real time to obtain real-time temperature information of the avalanche diode; providing a standard temperature storage device for storing standard temperature information when the avalanche diode works normally;
providing a temperature judgment device, performing first temperature judgment on the real-time temperature information and the standard temperature information through a common judgment unit, if the first temperature judgment result is that the real-time temperature information is matched with the standard temperature information, taking the first temperature judgment result as an actual temperature judgment result, setting the temperature regulation device to be in a constant mode, turning off the temperature detection device, and entering step S2; if the first temperature judgment result is that the real-time temperature information is not matched with the standard temperature information; performing second temperature judgment on the real-time temperature information and the standard temperature information through a standby judgment unit, if the second temperature judgment result is that the real-time temperature information is matched with the standard temperature information, setting the temperature regulation device to be in a constant mode by taking the second temperature judgment result as an actual temperature judgment result, turning off the temperature detection device, and entering step S2; if the second temperature judgment result is that the real-time temperature information is not matched with the standard temperature information, the second temperature judgment result is taken as an actual temperature judgment result, and the temperature adjusting device and the temperature detecting device are controlled to be continuously started;
s2: providing a reverse bias voltage regulating device for providing a reverse bias voltage for the avalanche diode; providing a reverse bias voltage detection device, and detecting the reverse bias voltage of the avalanche diode in real time to obtain real-time reverse bias voltage information of the avalanche diode; providing a standard reverse bias voltage storage device for storing standard reverse bias voltage information when the avalanche diode works normally;
providing a reverse bias voltage judgment device, performing first reverse bias voltage judgment on the real-time reverse bias voltage information and the standard reverse bias voltage information through a common judgment unit, setting a reverse bias voltage regulation device to be in a constant mode if the first reverse bias voltage judgment result shows that the real-time reverse bias voltage information is matched with the standard reverse bias voltage information, turning off a reverse bias voltage detection device, and entering step S3; if the first reverse bias voltage judgment result is that the real-time reverse bias voltage information is not matched with the standard reverse bias voltage information; performing secondary reverse bias voltage judgment on the real-time reverse bias voltage information and the standard reverse bias voltage information through a standby judgment unit, setting a reverse bias voltage regulation device to be in a constant mode, turning off a reverse bias voltage detection device if the secondary reverse bias voltage judgment result is that the real-time reverse bias voltage information is matched with the standard reverse bias voltage information, and entering step S3; if the second reverse bias voltage judgment result is that the real-time reverse bias voltage information is not matched with the standard reverse bias voltage information, the second reverse bias voltage judgment result is taken as an actual reverse bias voltage judgment result to control the reverse bias voltage regulating device and the reverse bias voltage detection device to be continuously started;
s3: providing a pulse adjusting device for providing pulses for the avalanche diode; providing a pulse detection device, and detecting the pulse of the avalanche diode in real time to obtain real-time pulse information of the avalanche diode; providing a standard pulse storage device for storing standard pulse information when the avalanche diode works normally;
providing a pulse judgment device, performing first pulse judgment on the real-time pulse information and the standard pulse information through a common judgment unit, if the first pulse judgment result is that the real-time pulse information is matched with the standard pulse information, taking the first pulse judgment result as an actual pulse judgment result, setting a pulse regulation device to be in a constant mode, turning off a pulse detection device, and entering step S4; if the first pulse judgment result is that the real-time pulse information is not matched with the standard pulse information; performing second pulse judgment on the real-time pulse information and the standard pulse information through a standby judgment unit, if the second pulse judgment result is that the real-time pulse information is matched with the standard pulse information, setting a pulse adjusting device to be in a constant mode by taking the second pulse judgment result as an actual pulse judgment result, closing a pulse detection device, and entering step S4; if the second pulse judgment result is that the real-time pulse information is not matched with the standard pulse information, the second pulse judgment result is taken as an actual pulse judgment result, and the pulse adjusting device and the pulse detecting device are controlled to be continuously started;
s4: providing an avalanche state regulating device for providing an avalanche state for the avalanche diode; providing an avalanche state detection device, and detecting the avalanche state of the avalanche diode in real time to obtain real-time avalanche state information of the avalanche diode; providing a standard avalanche state storage device for storing standard avalanche state information when the avalanche diode works normally;
providing an avalanche state judgment device, performing first avalanche state judgment on the real-time avalanche state information and the standard avalanche state information through a common judgment unit, setting an avalanche state regulation device to be in a constant mode, closing an avalanche state detection device and entering step S5, wherein if the first avalanche state judgment result is that the real-time avalanche state information is matched with the standard avalanche state information, the first avalanche state judgment result is taken as an actual avalanche state judgment result; if the first avalanche state judgment result is that the real-time avalanche state information is not matched with the standard avalanche state information; performing second avalanche state judgment on the real-time avalanche state information and the standard avalanche state information through a standby judgment unit, setting an avalanche state regulation device to be in a constant mode by taking the second avalanche state judgment result as an actual avalanche state judgment result if the second avalanche state judgment result is that the real-time avalanche state information is matched with the standard avalanche state information, closing an avalanche state detection device, and entering step S5; if the second avalanche state judgment result is that the real-time avalanche state information is not matched with the standard avalanche state information, the second avalanche state judgment result is taken as an actual avalanche state judgment result, and the avalanche state adjusting device and the avalanche state detecting device are controlled to be continuously started;
s5: and providing a light power detection device for detecting the output end signal of the avalanche diode so as to obtain the light power of the light sources with different power.
2. The high-rate PON/optical module reception avalanche diode test method in accordance with claim 1, wherein on the basis of step S1, a timing device, a temperature alarm device and a temperature adjustment time storage device are provided;
when the temperature adjusting device is started, the timing device starts timing at the same time;
the temperature regulation time storage device stores standard temperature regulation time consumed for regulating the temperature of the avalanche diode from an initial state to a standard temperature;
and when the actual temperature adjusting time of the timing device reaches the standard temperature adjusting time and the actual temperature information of the avalanche diode is not matched with the standard temperature information, the temperature alarm device gives out temperature alarm.
3. The high-rate PON/optical module reception avalanche diode test method in accordance with claim 1, wherein on the basis of step S2, a timing device, a reverse bias voltage alarm device and a reverse bias voltage adjustment time storage device are provided;
when the reverse bias voltage adjusting device is started, the timing device starts timing at the same time;
the reverse bias voltage adjustment time storage means stores a standard reverse bias voltage adjustment time required to be consumed for adjusting the reverse bias voltage of the avalanche diode from an initial state to a standard reverse bias voltage;
and when the actual reverse bias voltage adjusting time of the timing device reaches the standard reverse bias voltage adjusting time and the actual reverse bias voltage information of the avalanche diode is not matched with the standard reverse bias voltage information, the reverse bias voltage alarm device gives a reverse bias voltage alarm.
4. The high-rate PON/optical module reception avalanche diode test method in accordance with claim 1, wherein on the basis of step S3, a timing device, a pulse alarming device and a pulse adjusting time storage device are provided;
when the pulse adjusting device is started, the timing device starts timing at the same time;
the pulse adjusting time storage device stores standard pulse adjusting time consumed for adjusting the avalanche diode pulse from an initial state to a standard pulse;
and when the actual pulse adjusting time of the timing device reaches the standard pulse adjusting time and the actual pulse information of the avalanche diode is not matched with the standard pulse information, the pulse alarm device carries out pulse alarm.
5. The high-speed PON/optical module reception avalanche diode test method in accordance with claim 1, wherein on the basis of step S4, a timing device, an avalanche state alarm device and an avalanche state adjustment time storage device are provided;
when the avalanche state adjusting device is started, the timing device also starts timing at the same time;
an avalanche state adjustment time storage means for storing a standard avalanche state adjustment time to be consumed for adjusting an avalanche state of the avalanche diode from an initial state to a standard avalanche state;
and when the actual avalanche state regulating time of the timing device reaches the standard avalanche state regulating time and the actual avalanche state information of the avalanche diode is not matched with the standard avalanche state information, the avalanche state alarm device alarms in the avalanche state.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011444449.9A CN112611452A (en) | 2020-12-08 | 2020-12-08 | High-rate PON/optical module receiving avalanche diode testing method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011444449.9A CN112611452A (en) | 2020-12-08 | 2020-12-08 | High-rate PON/optical module receiving avalanche diode testing method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112611452A true CN112611452A (en) | 2021-04-06 |
Family
ID=75232839
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011444449.9A Pending CN112611452A (en) | 2020-12-08 | 2020-12-08 | High-rate PON/optical module receiving avalanche diode testing method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112611452A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113447750A (en) * | 2021-08-31 | 2021-09-28 | 深圳市力子光电科技有限公司 | Optical device test circuit |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6031219A (en) * | 1997-01-07 | 2000-02-29 | Nec Corporation | Bias voltage supply circuit for photoelectric converting element and photodetection circuit |
| CN200959101Y (en) * | 2006-10-12 | 2007-10-10 | 宁波中科集成电路设计中心有限公司 | Temperature compensator of avalanche photoelectric diode |
| CN103033263A (en) * | 2012-12-21 | 2013-04-10 | 上海朗研光电科技有限公司 | Ultra-sensitive luminous power detector based on avalanche diode |
| CN106356939A (en) * | 2016-09-28 | 2017-01-25 | 广东电网有限责任公司教育培训评价中心 | Method for detecting circuit opening of storage battery pack |
| CN109000336A (en) * | 2018-07-25 | 2018-12-14 | 珠海格力电器股份有限公司 | Method, device, storage medium and system for detecting abnormal work of temperature regulation equipment |
| CN110933535A (en) * | 2019-11-29 | 2020-03-27 | 四川天邑康和通信股份有限公司 | Automatic screening method based on optical power abnormity of PON optical module |
-
2020
- 2020-12-08 CN CN202011444449.9A patent/CN112611452A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6031219A (en) * | 1997-01-07 | 2000-02-29 | Nec Corporation | Bias voltage supply circuit for photoelectric converting element and photodetection circuit |
| CN200959101Y (en) * | 2006-10-12 | 2007-10-10 | 宁波中科集成电路设计中心有限公司 | Temperature compensator of avalanche photoelectric diode |
| CN103033263A (en) * | 2012-12-21 | 2013-04-10 | 上海朗研光电科技有限公司 | Ultra-sensitive luminous power detector based on avalanche diode |
| CN106356939A (en) * | 2016-09-28 | 2017-01-25 | 广东电网有限责任公司教育培训评价中心 | Method for detecting circuit opening of storage battery pack |
| CN109000336A (en) * | 2018-07-25 | 2018-12-14 | 珠海格力电器股份有限公司 | Method, device, storage medium and system for detecting abnormal work of temperature regulation equipment |
| CN110933535A (en) * | 2019-11-29 | 2020-03-27 | 四川天邑康和通信股份有限公司 | Automatic screening method based on optical power abnormity of PON optical module |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113447750A (en) * | 2021-08-31 | 2021-09-28 | 深圳市力子光电科技有限公司 | Optical device test circuit |
| CN113447750B (en) * | 2021-08-31 | 2022-03-08 | 深圳市力子光电科技有限公司 | Optical device test circuit |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103439232A (en) | Obscuration type soot particle concentration measuring method and device thereof | |
| CN112859035B (en) | High dynamic range multi-satellite compatible active laser detector | |
| CN112611452A (en) | High-rate PON/optical module receiving avalanche diode testing method | |
| CN110994549A (en) | Over-temperature protection method and circuit of power switch | |
| CN102033588A (en) | Method for preventing notebook computer from overheating and notebook computer | |
| CN101446615B (en) | Solar battery management method | |
| CN203337532U (en) | Ozone concentration tester | |
| CN101944302A (en) | Teaching experimental platform for photoelectric sensor | |
| JP2017108586A (en) | Solar cell module characteristics test apparatus | |
| CN106019135B (en) | Arc light protection device tester | |
| CN204789956U (en) | Special LED intelligence light detection device of smart electric meter | |
| CN204177863U (en) | A kind of high-precision pulse power detection module | |
| CN210036969U (en) | RS 485-based mining intrinsically safe infrared thermometer | |
| CN110927464B (en) | Online detection system for isolated power supply | |
| CN103033263A (en) | Ultra-sensitive luminous power detector based on avalanche diode | |
| CN113567736A (en) | Voltage measurement circuit, fault indicator and voltage calibration method | |
| CN202267538U (en) | Refrigeration type infrared detector with fault detection function | |
| KR101772935B1 (en) | Detection and control system for abnormal condition of electrical signal | |
| CN201829104U (en) | Photoelectric sensor teaching experiment platform | |
| CN106996863B (en) | Laser optical path detection circuit and failure detection method thereof | |
| CN205051650U (en) | Promote device of photovoltaic power generation system steady operation | |
| CN115865185B (en) | Big light protection device, optical module and big light protection method | |
| CN104330617A (en) | High-accuracy pulse power detection module | |
| CN217155294U (en) | High-precision measuring circuit and length measuring instrument | |
| CN212386716U (en) | General inspection tester for relieving output end pulse |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |