Some standard content:
National Metrology Verification Regulations of the People's Republic of China J.FG965—2001
Oplical Power Meter in Telecommunications
Issued on July 6, 2001
Implementation on October 1, 2001
Issued by the General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China JR:965—2001
Verification Regulations of Optical Power Meter in Telecommunications
JJG 965—2001
This document was approved by the General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China on July 6, 2001, and came into force on July 2, 2001.
Responsible unit: National Optical Metrology Academic Committee Drafting unit: Ministry of Information Industry Telecommunication Metrology Careful Regulations entrusted to the National Optical Metrology Technical Committee is responsible for interpreting this regulation Main drafters:
Participating drafters:
JG965-001
[Telecommunication Metrology Center of Ministry of Information Industry]
(Telecommunication Metrology Center of Ministry of Information Industry
1 Range
2 Basic units:
Overview·
4 Metrology performance requirements·
4.1 Optical power (1\) measurement range
4.2 Calibration wavelength range
4.3 Calibration efficiency,
4.4 Expanded uncertainty (=2)
4.5 Linear error of optical power meter
S Technical requirements||tt ||5.L Appearance·
5.2 Optical system·
6 Metering and display equipment system
6.1 Verification conditions·
f.2 Verification items
6.3 Verification party
6.4 Verification result processing
6.5 Verification cycle
Appendix A
Verification record format
Appendix L Verification certificate (back) format Type
JJC965-200t
(2'
1Fangge
:165200
Communication optical power meter calibration procedures
Small visual range extended type: Photoelectric type communication use sequence release bucket initial calibration, subsequent calibration and in-use inspection. 2 Measurement unit
Usually the optical power value is expressed in single unit (W, blood research.....) Liu Cheng, this power W is the unit of the three international single plans sent by the state, and its name is derived from the unit. The internal unit (certificate) and the national selected non-international unit system unit: in the engineering price, in addition to the single multiple (output), the absolute power unit (Fw, IFr: 1..) series meter can also be used to indicate the value of the separation. The above units usually appear in the total and child display of the same optical power. The average power (W, w) can be converted to the power value expressed in absolute power units (P: the following formula:
Paw-10gw
Pen=10iimw
3 Overview
Communication and optical communication are important instruments used in communication equipment, equipment maintenance, research and production. The main system is to measure the power transmission efficiency and output power of the optical transmitter. The optical transmission system is used to measure the power transmission efficiency and output power of the optical transmitter. The transmission rate of the received light is usually determined by the detection system, which includes the sensor and the signal processing system. The detection part is the same. It can be divided into calorimetric type and amplification type. The power meter is made of energy-conserving material, and is composed of light absorber, thermoelectric conversion element, fiber to DC calibration system, etc. It has the advantages of small uncertainty and high sensitivity to environmental conditions: the direct measurement cell is used for product quality control, and the photoelectric type rate meter is made of semiconductor light. It has the advantages of being adaptable to environmental conditions and having a wide measurement range: the accuracy is higher than that of the single thermal type. Both types of photoelectric rate meters can be read through the display laser tube. Optical power: 4.1 Power () || tt|| Thermal type: +10-10 Bm
Photoelectric type: -13- -110 rFm
4.2 Calibration wavelength range
Thermal type: 600-1600nm
JC 965—3001
Photoelectric type: (1310±20)mm; (1550=20)m4.3 Calibration power
Thermal type: -1B
Photoelectric type: According to the instructions, one of -10n, -20dBm, -23dBm or -33Brl. 4.4 Uncertainty of measurement (point 2)
Thermal type: (2-3)%
Photoelectric type: (3-10)%
4.5 Linear error of optical power meter
Not more than 2% (0---80Bm)
5 General technical requirements
5.1 Appearance
5.1.1 All kinds of components used in the measurement and their instructions are complete. 5.1.2 The optical power meter has specifications, models, manufacturing name, number, name, export date, etc. 5.1.3 The detector of the optical power meter should be kept clean, dry and uniform without discoloration, scratches and shedding. 5.1.4 The optical power meter should not be damaged and its electrical and optical performance should be affected. All buttons and keys should be easy to operate. 5.1.5 The displayed optical power value should be clear. 5.2 Optical accumulation 5.2.1 Optical input mode of optical power meter Type: Light input (spatial beam): Photoelectric type: Fiber jumper beam input 5.2.2 The maximum receiving power of the optical power meter should be the output of the working light source. 5.2.3 For the input optical power of the downward beam, the ratio of the diameter of the light receiving surface to the diameter of the incident light spot (defined as 1/) shall be greater than or equal to 3. 6 Control of measuring instruments Control of measuring instruments includes initial qualification, subsequent verification and in-use inspection. 6.1 Verification conditions 6.1 Verification environment Ambient humidity: (2215)℃+ Maximum temperature change during verification: -1t Relative humidity: 75% Power supply voltage: AC (220±11) V, 50 H The detection area should be shielded from light, and there should be no severe vibration, strong heat radiation and strong electromagnetic field around it. 6.1.2 Verification equipment 6.1.2.1 Stable laser source Center length: (13[±20)m; (1550±20)m2 965—2001
Half-power point line width: 7nm (if the detector of the standard narrow power meter is made of wrong material, it should be 5rrm) Output power: dBm [1mW]
Output power stability: Long-term stability: not more than ±0.05dB (5h); short-term stability: not more than ±0.005dB (15min) 6.1.2.2 Self-focusing optical fiber or condenser [using calorimetric type) Working wavelength: 600-1600nm
When the light source is an optical function output, self-contained light is used; when the light beam is a parallel beam, use a parallel beam. 6.1.2.3 Optical attenuator
Working wavelength: 131020)m; (1550120)um Dynamic range: 0~60d13, continuously adjustable Drag rate: 3.5dB
Maximum error: no error 30 (full range Input and output mode: same as the output mode of the light source - 6.1.2.4 Optical switch
Optical meter type (electronic shutter or black baffle): optical fiber type 6.1.2.5 Optical splitter
Y-type splitter with a splitting ratio of 1:1
6.1.2.6 Thermal type standard optical power meter
Working wavelength: 600~1G00 m
Calibration wavelength: (1310±20)m; (1550=20)=m Optical power measurement range: -10～-10dBrm Calibration point optical power load: 10Bm (100W
Expanded uncertainty: more than 1% (starting from -2)
6.1.2.7 Photoelectric calibration optical power meter
Calibration wavelength: (1310±20)m; (1550=20)nm Optical power measurement range: [-50Fm
1hdHm (1M μW),-20 dFm (10 gW), -23aBm (5μW) Calibration point optical power value:
Extended accuracy: 3% [一2)
6.2 Verification items
The verification items of the optical power meter are shown in Table 1:
6.3 Verification method
6.3.1 Appearance
Through visual inspection and combination of visual inspection. According to 5.1,1~5,1,5.3.2 Optical system inspection
Inspect according to the instrument manual and the items specified in 5.2.1-5.2.3. 3 Inspection items
Optical system
Optical efficiency
Optical efficiency
Non-carrier system efficiency
ITG 965—H
Operation inspection
Instrument type E.
Test item
And Hanning
Indicates the test
Use the record correction system"3. Photodynamic power meter calibration
Calibration plan of direct light photodynamic power meter
6.3.4 Calorimetric photodynamic power value calibration
Test equipment
6.3.1.1 When the light source is a non-parallel beam, connect the optical power meter and the tested optical power meter as shown in Figure 1; when the laser source is a semi-parallel beam, just reduce the luminosity; when the laser source is a fiber optic transmission, connect as shown in Figure 2. Laser tour
—-light collection
photophilic microstrip
optical switch
standard push optical power meter
applied optical power meter
Min【standard type is the time rate meter detection mixer block diagram (laser new for the beam description: laser color
light in the device
self-focusing fiber
optical switch
standard technical power meter
detected optical power meter
2 benefit type optical power gold detection real number constant diagram (source light box horse) 6.3.4,2 in 6,1.2.6 image specification is the calibration they make-point , press the steps below to calibrate. 6.3.4.3 The detection of the standard optical power meter is to aim at the light, adjust the meter to make the display of the standard optical power meter at the detection power point, turn off the optical switch: 6.3.4.4 After the system is balanced, read the first reading on the standard optical power meter. 6.3.4.5 Turn on the optical switch: After the system is balanced, read the first reading of the optical power meter, 4
JJ:962001
5.3.4.6 Turn off the optical switch, the system is balanced, read the first reading of the standard optical power meter: 6.3.4.7 (6.3.4.4--6.3.4.6) 36.3.1.8 Calculate the three readings respectively to the half value of the training, and get the product: P, P.: standard use the following formula:
P-P2-(+)
In the formula:. —The correct standard optical power; C* is the standard installed tube to be calibrated during calibration, and the correction coefficient is obtained. 6.3.19 Turn on the optical switch and let the test light F turn off. Refer to (6.3.4.46.3.4.8) for the measurement of the optical power meter: get the arithmetic mean value P, P, P of the first,... ... -iPr+F
peak coefficient (, calculate the following:
error related (use the ten-item acceptance table for initial inspection), the calculation formula: -(-X100%
will be used to measure the quality of the table (see Appendix A! Valley.3. Photoelectric optical power meter calibration
6.3.5.1 The photoelectric optical power meter calibration must be based on this method (5)
consult h.1 system specified in the fixed rate range with internal light, refer to 6.3.+ a plate of thermal type optical power meter value calibration, when P (lower than the new measured light cutting rate ~ order of magnitude can be used as a related fiber, P (P) and, () do not need to be repeatedly measured: public war (4): () simplified to: P.- F2
F's = 6.3.5.2 Photoelectric power meter with optical fiber combined method (8) Use the optical fiber cable direct dial method to implement the timing, connect the photoelectric power meter and the calibration equipment on the optical platform; when the output power of the light source is greater than 6m, it can also be connected with a Y-type adapter to implement the calibration. The calibration method and data processing refer to 6.35, and the calibration of the photoelectric power meter with optical fiber combined method is carried out. 6.3.6 Nonlinear correction coefficient calibration of photoelectric power meter 6.3.6.1 Use the double beam method to connect the calibration equipment in room 5, within the measurement range specified in 4.5, select 1- to carry out the optical fiber output type calibration. S65-3001
Fiber optic coupler
Optical attenuator
Fiber optic coupled type
Standard optical power meter
Fiber optic amplitude coupled type
Tested optical power meter
Calibration diagram of photoelectric optical power meter with 3-fiber coupling (directly plug and play with fiber optic cable) Fiber optic coupling type
Standard optical power meter
Fiber optic climbing type
Laser temporary
Fiber optic patch cord
Fiber optic auxiliary type
Optical output reduction
Optical splitter
Fiber optic coupling Figure 4 Fiber optic attenuation diagram of photoelectric sub-power meter calibration (using Y-type optical path divider) First branch Optical switch Optical light source Optical splitter Optical switch Second branch Figure 5 Nonlinear drop coefficient calibration Optical power meter under test Take the determined power point (usually 0Brm) as the initial reference power point and perform calibration according to the following steps.
Connect the first optical path, check and confirm that the installation is working properly, and adjust the inductance of the optical attenuator so that the displayed value of the power meter is approximately the reference power value Pj: 0.3.6.3
Disconnect the first optical path and read the first reading on the optical power meter. Connect the two optical paths and read the second reading on the optical power meter. Connect the first branch and read the third reading on the optical power meter. Connect the second branch and read the fourth reading on the optical power meter. Open two new optical paths and read the third reading on the optical power meter. (3.G.3~G.3.6,7) Calculate the arithmetic mean of the three readings respectively to obtain α, 2, 3, z, and . The numerical calculation formula is as follows:
reference point power value\
first branch optical power value P1
second branch optical output value P:
JJG9652001
Pr- as-(ur +as)/2
- a-(a +as)/
(ut+s)/2
When () is lower than the optical power value of the test object by more than one level, it can be treated as zero value, and () does not need to be reversed. Formula (10), (11), (12) are simplified as P,-az
P, = ar
The nonlinear energy accumulation of the initial reference power point is An: A, = 1
The nonlinear correction coefficient of the tested power point product to the initial test power point is A; A, - Pn3 The detection of the standard optical power meter is to aim at the optical requirement, adjust the meter to make the indication of the standard optical power meter at the detection power point, turn off the optical switch: 6.3.4.4 After the system is balanced, read the first reading on the standard optical power meter. 6.3.4.5 Turn on the optical switch: After the system is balanced, read the second reading of the optical power meter after passing through, 4
JJ:962001
5.3.4.6 Turn off the optical switch, the system is balanced, read the first reading of the standard optical power meter: 6.3.4.7 (6.3.4.4--6.3.4.6), less than 36.3.1.8 Calculate the three readings respectively to the original half value, and get the product: P.: The standard uses the following formula:
P-P2-( +)
Where: . — The correct standard optical power of the old wood; C* — The standard tube to be tested during the calibration, the correction coefficient obtained. 6.3.19 Turn on the optical switch, the detection light will be activated, and the detection power meter will be accurate (3)
6.34.1 Turn off the internal light F, refer to (6.3.4.46.3.4.8) and measure the intensity of the optical power meter: the arithmetic mean value P, P, P, P of the first,...,..., readings of the power meter to be tested is calculated as follows:
- Pr -iPr+F
peak coefficient (, calculate the following:
error related (use the ten-item acceptance table for initial inspection), the calculation formula: -(-X100%
will be used to measure the quality of the table (see Appendix A! Valley.3. Photoelectric optical power meter calibration
6.3.5.1 The photoelectric optical power meter calibration must be based on this method (5)
consult h.1 system specified in the fixed rate range with internal light, refer to 6.3.+ a plate of thermal type optical power meter value calibration, when P (lower than the new measured light cutting rate ~ order of magnitude can be used as a related fiber, P (P) and, () do not need to be repeatedly measured: public war (4): () simplified to: P.- F2
F's = 6.3.5.2 Photoelectric power meter with optical fiber combined method (8) Use the optical fiber cable direct dial method to implement the timing, connect the photoelectric power meter and the calibration equipment on the optical platform; when the output power of the light source is greater than 6m, it can also be connected with a Y-type adapter to implement the calibration. The calibration method and data processing refer to 6.35, and the calibration of the photoelectric power meter with optical fiber combined method is carried out. 6.3.6 Nonlinear correction coefficient calibration of photoelectric power meter 6.3.6.1 Use the double beam method to connect the calibration equipment in room 5, within the measurement range specified in 4.5, select 1- to carry out the optical fiber output type calibration. S65-3001
Fiber optic coupler
Optical attenuator
Fiber optic coupled type
Standard optical power meter
Fiber optic amplitude coupled type
Tested optical power meter
Calibration diagram of photoelectric optical power meter with 3-fiber coupling (directly plug and play with fiber optic cable) Fiber optic coupling type
Standard optical power meter
Fiber optic climbing type
Laser temporary
Fiber optic patch cord
Fiber optic auxiliary type
Optical output reduction
Optical splitter
Fiber optic coupling Figure 4 Fiber optic attenuation diagram of photoelectric sub-power meter calibration (using Y-type optical path divider) First branch Optical switch Optical light source Optical splitter Optical switch Second branch Figure 5 Nonlinear drop coefficient calibration Optical power meter under test Take the determined power point (usually 0Brm) as the initial reference power point and perform calibration according to the following steps. bZxz.net
Connect the first optical path, check and confirm that the installation is working properly, and adjust the inductance of the optical attenuator so that the displayed value of the power meter is approximately the reference power value Pj: 0.3.6.3
Disconnect the first optical path and read the first reading on the optical power meter. Connect the two optical paths and read the second reading on the optical power meter. Connect the first branch and read the third reading on the optical power meter. Connect the second branch and read the fourth reading on the optical power meter. Open two new optical paths and read the third reading on the optical power meter. (3.G.3~G.3.6,7) Calculate the arithmetic mean of the three readings respectively to obtain α, 2, 3, z, and . The numerical calculation formula is as follows:
reference point power value\
first branch optical power value P1
second branch optical output value P:
JJG9652001
Pr- as-(ur +as)/2
- a-(a +as)/
(ut+s)/2
When () is lower than the optical power value of the test object by more than one level, it can be treated as zero value, and () does not need to be reversed. Formula (10), (11), (12) are simplified as P,-az
P, = ar
The nonlinear energy accumulation of the initial reference power point is An: A, = 1
The nonlinear correction coefficient of the tested power point product to the initial test power point is A; A, - Pn3 The detection of the standard optical power meter is to aim at the optical requirement, adjust the meter to make the indication of the standard optical power meter at the detection power point, turn off the optical switch: 6.3.4.4 After the system is balanced, read the first reading on the standard optical power meter. 6.3.4.5 Turn on the optical switch: After the system is balanced, read the second reading of the optical power meter after passing through, 4
JJ:962001
5.3.4.6 Turn off the optical switch, the system is balanced, read the first reading of the standard optical power meter: 6.3.4.7 (6.3.4.4--6.3.4.6), less than 36.3.1.8 Calculate the three readings respectively to the original half value, and get the product: P.: The standard uses the following formula:
P-P2-( +)
Where: . — The correct standard optical power of the old wood; C* — The standard tube to be tested during the calibration, the correction coefficient obtained. 6.3.19 Turn on the optical switch, the detection light will be activated, and the detection power meter will be accurate (3)
6.34.1 Turn off the internal light F, refer to (6.3.4.46.3.4.8) and measure the intensity of the optical power meter: the arithmetic mean value P, P, P, P of the first,...,..., readings of the power meter to be tested is calculated as follows:
- Pr -iPr+F
peak coefficient (, calculate the following:
error related (use the ten-item acceptance table for initial inspection), the calculation formula: -(-X100%
will be used to measure the quality of the table (see Appendix A! Valley.3. Photoelectric optical power meter calibration
6.3.5.1 The photoelectric optical power meter calibration must be based on this method (5)
consult h.1 system specified in the fixed rate range with internal light, refer to 6.3.+ a plate of thermal type optical power meter value calibration, when P (lower than the new measured light cutting rate ~ order of magnitude can be used as a related fiber, P (P) and, () do not need to be repeatedly measured: public war (4): () simplified to: P.- F2
F's = 6.3.5.2 Photoelectric power meter with optical fiber combined method (8) Use the optical fiber cable direct dial method to implement the timing, connect the photoelectric power meter and the calibration equipment on the optical platform; when the output power of the light source is greater than 6m, it can also be connected with a Y-type adapter to implement the calibration. The calibration method and data processing refer to 6.35, and the calibration of the photoelectric power meter with optical fiber combined method is carried out. 6.3.6 Nonlinear correction coefficient calibration of photoelectric power meter 6.3.6.1 Use the double beam method to connect the calibration equipment in room 5, within the measurement range specified in 4.5, select 1- to carry out the optical fiber output type calibration. S65-3001
Fiber optic coupler
Optical attenuator
Fiber optic coupled type
Standard optical power meter
Fiber optic amplitude coupled type
Tested optical power meter
Calibration diagram of photoelectric optical power meter with 3-fiber coupling (directly plug and play with fiber optic cable) Fiber optic coupling type
Standard optical power meter
Fiber optic climbing type
Laser temporary
Fiber optic patch cord
Fiber optic auxiliary type
Optical output reduction
Optical splitter
Fiber optic coupling Figure 4 Fiber optic attenuation diagram of photoelectric sub-power meter calibration (using Y-type optical path divider) First branch Optical switch Optical light source Optical splitter Optical switch Second branch Figure 5 Nonlinear drop coefficient calibration Optical power meter under test Take the determined power point (usually 0Brm) as the initial reference power point and perform calibration according to the following steps.
Connect the first optical path, check and confirm that the installation is working properly, and adjust the inductance of the optical attenuator so that the displayed value of the power meter is approximately the reference power value Pj: 0.3.6.3
Disconnect the first optical path and read the first reading on the optical power meter. Connect the two optical paths and read the second reading on the optical power meter. Connect the first branch and read the third reading on the optical power meter. Connect the second branch and read the fourth reading on the optical power meter. Open two new optical paths and read the third reading on the optical power meter. (3.G.3~G.3.6,7) Calculate the arithmetic mean of the three readings respectively to obtain α, 2, 3, z, and . The numerical calculation formula is as follows:
reference point power value\
first branch optical power value P1
second branch optical output value P:
JJG9652001
Pr- as-(ur +as)/2
- a-(a +as)/
(ut+s)/2
When () is lower than the optical power value of the test object by more than one level, it can be treated as zero value, and () does not need to be reversed. Formula (10), (11), (12) are simplified as P,-az
P, = ar
The nonlinear energy accumulation of the initial reference power point is An: A, = 1
The nonlinear correction coefficient of the tested power point product to the initial test power point is A; A, - PnS65-3001
Fiber optic coupler
Optical attenuator
Fiber optic coupled type
Standard optical power meter
Fiber optic amplitude coupled type
Tested optical power meter
Calibration diagram of photoelectric optical power meter with 3-fiber coupling (directly plug and play with fiber optic cable) Fiber optic coupling type
Standard optical power meter
Fiber optic climbing type
Laser temporary
Fiber optic patch cord
Fiber optic auxiliary type
Optical output reduction
Optical splitter
Fiber optic coupling Figure 4 Fiber optic attenuation diagram of photoelectric sub-power meter calibration (using Y-type optical path divider) First branch Optical switch Optical light source Optical splitter Optical switch Second branch Figure 5 Nonlinear drop coefficient calibration Optical power meter under test Take the determined power point (usually 0Brm) as the initial reference power point and perform calibration according to the following steps.
Connect the first optical path, check and confirm that the installation is working properly, and adjust the inductance of the optical attenuator so that the displayed value of the power meter is approximately the reference power value Pj: 0.3.6.3
Disconnect the first optical path and read the first reading on the optical power meter. Connect the two optical paths and read the second reading on the optical power meter. Connect the first branch and read the third reading on the optical power meter. Connect the second branch and read the fourth reading on the optical power meter. Open two new optical paths and read the third reading on the optical power meter. (3.G.3~G.3.6,7) Calculate the arithmetic mean of the three readings respectively to obtain α, 2, 3, z, and . The numerical calculation formula is as follows:
reference point power value\
first branch optical power value P1
second branch optical output value P:
JJG9652001
Pr- as-(ur +as)/2
- a-(a +as)/
(ut+s)/2
When () is lower than the optical power value of the test object by more than one level, it can be treated as zero value, and () does not need to be reversed. Formula (10), (11), (12) are simplified as P,-az
P, = ar
The nonlinear energy accumulation of the initial reference power point is An: A, = 1
The nonlinear correction coefficient of the tested power point product to the initial reference power point is A; A, - PnS65-3001
Fiber optic coupler
Optical attenuator
Fiber optic coupled type
Standard optical power meter
Fiber optic amplitude coupled type
Tested optical power meter
Calibration diagram of photoelectric optical power meter with 3-fiber coupling (directly plug and play with fiber optic cable) Fiber optic coupling type
Standard optical power meter
Fiber optic climbing type
Laser temporary
Fiber optic patch cord
Fiber optic auxiliary type
Optical output reduction
Optical splitter
Fiber optic coupling Figure 4 Fiber optic attenuation diagram of photoelectric sub-power meter calibration (using Y-type optical path divider) First branch Optical switch Optical light source Optical splitter Optical switch Second branch Figure 5 Nonlinear drop coefficient calibration Optical power meter under test Take the determined power point (usually 0Brm) as the initial reference power point and perform calibration according to the following steps.
Connect the first optical path, check and confirm that the installation is working properly, and adjust the inductance of the optical attenuator so that the displayed value of the power meter is approximately the reference power value Pj: 0.3.6.3
Disconnect the first optical path and read the first reading on the optical power meter. Connect the two optical paths and read the second reading on the optical power meter. Connect the first branch and read the third reading on the optical power meter. Connect the second branch and read the fourth reading on the optical power meter. Open two new optical paths and read the third reading on the optical power meter. (3.G.3~G.3.6,7) Calculate the arithmetic mean of the three readings respectively to obtain α, 2, 3, z, and . The numerical calculation formula is as follows:
reference point power value\
first branch optical power value P1
second branch optical output value P:
JJG9652001
Pr- as-(ur +as)/2
- a-(a +as)/
(ut+s)/2
When () is lower than the optical power value of the test object by more than one level, it can be treated as zero value, and () does not need to be reversed. Formula (10), (11), (12) are simplified as P,-az
P, = ar
The nonlinear energy accumulation of the initial reference power point is An: A, = 1
The nonlinear correction coefficient of the tested power point product to the initial test power point is A; A, - Pn
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