CN115459843B - Final inspection test light path and test method of optical fiber mixer - Google Patents
Final inspection test light path and test method of optical fiber mixer Download PDFInfo
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- CN115459843B CN115459843B CN202211050861.1A CN202211050861A CN115459843B CN 115459843 B CN115459843 B CN 115459843B CN 202211050861 A CN202211050861 A CN 202211050861A CN 115459843 B CN115459843 B CN 115459843B
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- 239000013307 optical fiber Substances 0.000 title claims abstract description 115
- 238000012360 testing method Methods 0.000 title claims abstract description 47
- 238000007689 inspection Methods 0.000 title claims abstract description 16
- 238000010998 test method Methods 0.000 title abstract description 7
- 230000003287 optical effect Effects 0.000 claims abstract description 97
- 230000010287 polarization Effects 0.000 claims abstract description 26
- 238000005086 pumping Methods 0.000 claims abstract description 15
- 238000000034 method Methods 0.000 claims description 11
- 238000002955 isolation Methods 0.000 abstract description 16
- 230000001419 dependent effect Effects 0.000 abstract description 5
- 238000003780 insertion Methods 0.000 abstract description 5
- 230000037431 insertion Effects 0.000 abstract description 5
- 238000001514 detection method Methods 0.000 description 9
- 238000004519 manufacturing process Methods 0.000 description 7
- 238000004891 communication Methods 0.000 description 6
- 239000000835 fiber Substances 0.000 description 6
- 238000010586 diagram Methods 0.000 description 5
- 239000000047 product Substances 0.000 description 5
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000006467 substitution reaction Methods 0.000 description 2
- 230000001276 controlling effect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000003032 molecular docking Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
Classifications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
- H04B10/07—Arrangements for monitoring or testing transmission systems; Arrangements for fault measurement of transmission systems
- H04B10/075—Arrangements for monitoring or testing transmission systems; Arrangements for fault measurement of transmission systems using an in-service signal
- H04B10/079—Arrangements for monitoring or testing transmission systems; Arrangements for fault measurement of transmission systems using an in-service signal using measurements of the data signal
- H04B10/0795—Performance monitoring; Measurement of transmission parameters
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
- H04B10/07—Arrangements for monitoring or testing transmission systems; Arrangements for fault measurement of transmission systems
- H04B10/075—Arrangements for monitoring or testing transmission systems; Arrangements for fault measurement of transmission systems using an in-service signal
- H04B10/079—Arrangements for monitoring or testing transmission systems; Arrangements for fault measurement of transmission systems using an in-service signal using measurements of the data signal
- H04B10/0795—Performance monitoring; Measurement of transmission parameters
- H04B10/07951—Monitoring or measuring chromatic dispersion or PMD
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
- H04B10/07—Arrangements for monitoring or testing transmission systems; Arrangements for fault measurement of transmission systems
- H04B10/075—Arrangements for monitoring or testing transmission systems; Arrangements for fault measurement of transmission systems using an in-service signal
- H04B10/079—Arrangements for monitoring or testing transmission systems; Arrangements for fault measurement of transmission systems using an in-service signal using measurements of the data signal
- H04B10/0795—Performance monitoring; Measurement of transmission parameters
- H04B10/07955—Monitoring or measuring power
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- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Testing Of Optical Devices Or Fibers (AREA)
Abstract
The invention discloses a final inspection test light path and a test method of an optical fiber mixer, wherein the final inspection test light path comprises the following steps: the device comprises a signal light source, a polarization controller, a pumping light source, an optical switch, an optical fiber mixer to be tested and a power meter, wherein the polarization controller is provided with an output port and an input port connected with the signal light source, and the optical switch is provided with a first input end connected with the output port, a second input end connected with the pumping light source and an output end; the optical fiber mixer to be tested is provided with a P1 port, a P2 port and a P3 port; the power meter has a CH1 channel and a CH2 channel; the CH1 channel is connected with the P2 port, the CH2 channel is connected with the P3 port, and the output end is connected with the P1 port. The optical path switching state between the two input ends and the output end of the optical switch is controlled, and the Isolation (ISO) and the Polarization Dependent Loss (PDL) can be measured at the same time when the Insertion Loss (IL) is tested, so that the testing efficiency and the testing accuracy are improved. The invention is suitable for the final inspection test of the optical fiber mixer.
Description
Technical Field
The invention relates to the field of optical fiber communication equipment detection, in particular to a final detection test light path and a final detection test method of an optical fiber mixer.
Background
In the field of optical fiber communication, an integrated optical fiber device optical fiber mixer can simultaneously utilize 980nm and 1550nm light source wave bands to carry out optical information transmission, and the device is provided with an isolation core, so that the interference of reflected light can be reduced, and the light source can be protected, and therefore, the integrated optical fiber device optical fiber mixer is widely applied to the production and the manufacture of EDFAs.
Because of the rapid development of optical communications, the demand for the optical communications is increasing, which is required to improve the testing efficiency of the product, however, because of the complex structure, some optical performance parameters of the product, such as Insertion Loss (IL), polarization Dependent Loss (PDL) and Isolation (ISO), are relatively difficult to test, different optical paths are required to be set up for testing, and the testing steps are complicated and the efficiency is low.
Disclosure of Invention
The present invention is directed to a final inspection test optical path and a test method for an optical fiber mixer, which solve one or more of the technical problems of the prior art, and at least provide a beneficial choice or creation condition.
The technical scheme adopted for solving the technical problems is as follows:
The invention provides a final inspection test light path of an optical fiber mixer, which comprises: the device comprises a signal light source, a polarization controller, a pumping light source, an optical switch, an optical fiber mixer to be tested and a power meter, wherein the polarization controller is provided with an output port and an input port connected with the signal light source, and the optical switch is provided with a first input end connected with the output port, a second input end connected with the pumping light source and an output end; the optical fiber mixer to be tested is provided with a P1 port, a P2 port and a P3 port; the power meter has a CH1 channel and a CH2 channel;
the output end can be connected with any one of a CH1 channel and a CH2 channel;
Or the CH1 channel is connected with the P2 port, the CH2 channel is connected with the P3 port, and the output end is connected with the P1 port.
The final detection test light path has the beneficial effects that: during detection, the optical fiber mixer to be detected is connected, specifically: the P1 port on the fiber-optic mixer is connected with the output end of the optical switch, the P2 port is connected with the CH1 channel of the power meter, the P3 port is connected with the CH2 channel of the power meter, the optical path switching state between the two input ends and the output end of the optical switch is controlled, the Isolation (ISO) can be measured at the same time when the Insertion Loss (IL) is tested, the problem that the Isolation (ISO) is tested with errors due to poor loss between fiber connection points is avoided, the operation of the polarization controller is controlled, the polarization-dependent loss (PDL) can be measured, the optical switch is utilized for optical path switching, the frequency of connecting optical fibers in the testing process is reduced, the fine production is realized under the simple optical path condition, the testing efficiency is improved, the actual application requirement of industrial mass production is met, and the equipment utilization rate of the expensive equipment 'signal light source and pumping light source' is improved.
Before the optical fiber mixer to be detected is detected, the output end of the optical switch can be connected to any one of the CH1 channel and the CH2 channel, and the communication state between the two input ends and the output end of the optical switch is controlled so as to store and refer to the optical power of the signal light source and the pumping light source, so that the detection accuracy is improved.
As a further improvement of the technical scheme, the signal light source, the polarization controller, the pumping light source, the optical switch and the power meter are connected by adopting optical fiber jumper wires.
The signal light source in this scheme is connected with polarization controller's input port through the optical fiber jumper wire, and the pumping light source is connected with optical switch's second input through the optical fiber jumper wire, and polarization controller's output port and optical switch's first input, when carrying out the power and storing the reference, optical switch's output is connected with the CH1 passageway or the CH2 passageway of power meter through the optical fiber jumper wire, improves the conduction of light, reduces the loss.
As a further improvement of the technical scheme, the two ends of the optical fiber jumper are FC/APC ends. The FC/APC tip can achieve rapid docking.
As a further improvement of the technical scheme, the optical fiber mixer to be tested, the optical switch and the power meter are connected by adopting optical fiber wires.
When the detection is carried out, the P1 port of the optical fiber mixer to be detected is connected with the output end of the optical switch through an optical fiber wire, the P2 port of the optical fiber mixer is connected with the CH1 channel of the power meter through the optical fiber wire, and the P3 port of the optical fiber mixer is connected with the CH2 channel of the power meter through the optical fiber wire.
As a further improvement of the above technical solution, the optical switch is a1×2 optical switch structure.
As a further improvement of the above technical solution, the signal light source and the pump light source are two width light sources, and both have light output channels.
In addition, the invention also provides a final inspection testing method of the optical fiber mixer, which adopts the testing optical path and comprises the following specific steps:
s1, connecting the output end with the CH1 channel, performing storage reference of the optical power of a signal light source, and then confirming zeroing;
S2, connecting the output end with the CH2 channel, performing storage reference of the optical power of the pumping light source, and then confirming zeroing;
s3, connecting the optical fiber mixer to be tested, specifically: the CH1 channel is connected with the P2 port, the CH2 channel is connected with the P3 port, and the output end is connected with the P1 port;
S4, adjusting the state of the optical switch to a first input end-output end, wherein the laser of the signal light source enters from the P1 port, one part of the laser can exit from the P2 port and transmit to the CH1 channel, and the other part of the laser can exit from the P3 port and reflect to enter the CH2 channel, so that parameters of the optical fiber mixer to be measured are measured: IL λs(P1→P2)、ISOλ s (P1→P3);
S5, controlling the operation of the polarization controller to measure parameters of the optical fiber mixer to be measured: PDL λ s (p1→p2);
s6, adjusting the state of the optical switch to the second input end-output end so as to measure parameters of the optical fiber mixer to be measured: IL λp(P1→P3)、ISOλ P (P1→P2).
The test method utilizes the novel optical path built by hardware equipment, utilizes the optical switch to switch the optical path, reduces the frequency of connecting the product with the optical fiber in the test process, realizes high-efficiency test under the simple optical path condition, and realizes fine production.
Drawings
The invention is further described below with reference to the drawings and examples;
FIG. 1 is a schematic diagram of a prior art fiber optic mixer;
FIG. 2 is a schematic illustration of a zeroing optical path of a prior art fiber optic mixer when testing parameters of IL λs(P1→P2)、ISOλs(P1→P3)、PDLλ s (P1→P2);
FIG. 3 is a schematic diagram of a test optical path when testing parameters of IL λs(P1→P2)、ISOλs(P1→P3)、PDLλ s (P1→P2) of a fiber optic mixer according to the prior art;
FIG. 4 is a schematic illustration of a zeroing optical path of a prior art fiber optic mixer when testing parameters of IL λp(P1→P3)、ISOλ P (P1→P2);
FIG. 5 is a schematic diagram of a test optical path when testing parameters of IL λp(P1→P3)、ISOλ P (P1→P2) of a fiber optic mixer according to the prior art;
FIG. 6 is a schematic diagram of a zeroing optical path for testing an optical fiber hybrid according to the present embodiment;
fig. 7 is a schematic diagram of a test optical path for testing the optical fiber mixer according to the present embodiment.
Detailed Description
Reference will now be made in detail to the present embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein the accompanying drawings are used to supplement the description of the written description so that one can intuitively and intuitively understand each technical feature and overall technical scheme of the present invention, but not to limit the scope of the present invention.
In the description of the present invention, it should be understood that references to orientation descriptions such as upper, lower, front, rear, left, right, etc. are based on the orientation or positional relationship shown in the drawings, are merely for convenience of description of the present invention and to simplify the description, and do not indicate or imply that the apparatus or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the present invention.
In the description of the present invention, if there is a word description such as "a plurality" or the like, the meaning of a plurality is one or more, and the meaning of a plurality is two or more, and greater than, less than, exceeding, etc. are understood to not include the present number, and above, below, within, etc. are understood to include the present number.
In the description of the present invention, unless explicitly defined otherwise, terms such as arrangement, installation, connection, etc. should be construed broadly and the specific meaning of the terms in the present invention can be reasonably determined by a person skilled in the art in combination with the specific contents of the technical scheme.
As shown in fig. 1, the internal structure of the optical fiber mixer is schematically shown, wherein WDM represents a reflective end ISO capable of realizing the functions of transmitting signal light source wave band is denoted as λs, reflecting pump light source wave band is denoted as λp, P1, P2 and P3 represent isolated cores, and P1, P3 represent port information of the device, and the important parameters of the optical fiber mixer are as follows: insertion Loss (IL): IL λs(P1→P2)、ISOλ s (p1→p3), polarization Dependent Loss (PDL): PDL λ s (p1→p2), isolation (ISO): IL λp(P1→P3)、ISOλ P (P1→P2).
For such complex parameters, the prior art test method is the following:
firstly, a zeroing optical path shown in fig. 2 is built by utilizing equipment such as a signal light source, a polarization controller, a power meter and the like, CH1 and CH2 of the power meter are respectively stored and referenced, then, the optical path of a test shown in fig. 3 is adopted, and the product process is tested: the light source is connected to the P1 of the optical fiber mixer, the other ends P2 and P3 are connected to the two channels CH1 and CH2 of the power meter respectively, parameters of the power meter are recorded manually, parameters IL λs(P1→P2)、ISOλ s (P1-P3) are obtained, then the polarization controller is controlled manually, and the difference between ILmax and ILmin is used for calculating PDL λ s (P1-P2) by observing the IL maximum value ILmax and the IL minimum value ILmin on the power meter.
Secondly, a zeroing light path shown in fig. 4 is built by using a pumping light source and a power meter, a light source line is connected to the power meter, CH1 and CH2 of the power meter are stored and referenced respectively, and then a test light path shown in fig. 5 is adopted to test the product process: the light source line is connected to the P1 of the optical fiber mixer, the other ends P2 and P3 are respectively connected to two channels CH1 and CH2 of the power meter, parameters of the power meter are manually recorded, and then the parameter IL λp(P1→P3)、ISOλ P (P1-P2) is obtained.
The above is the whole flow of the normal test of the optical fiber mixer in the prior art, the wiring times are more, and the test efficiency is low.
Therefore, the present embodiment provides a new final-inspection testing optical path of the optical fiber mixer, as shown in fig. 6 and 7, the final-inspection testing optical path of the present embodiment includes a signal light source 100, a pump light source 300, an optical switch 400, a polarization controller 200, an optical fiber mixer 500 to be tested, and a power meter 600, wherein the signal light source 100 is a wide light source, the pump light source 300 is also a wide light source, and both the signal light source 100 and the pump light source 300 have an optical output channel CH1.
While the polarization controller 200 has output ports, i.e., OUT and IN, respectively, the optical switch 400 of the present embodiment has a first input port, a second input port, and an output port, I/O, respectively, which are channel 1, channel 2, and a common output port, the optical fiber mixer 500 to be tested is provided with a P1 port, a P2 port, and a P3 port, and the power meter 600 is provided with a CH1 channel and a CH2 channel.
Before the optical power storage of the signal light source 100 and the pump light source 300 is needed to be detected by the optical fiber mixer 500 to be detected, a zeroing optical path needs to be set up, as shown IN fig. 6, an optical output channel CH1 of the signal light source 100 is connected with an input port IN of the polarization controller 200 through an optical fiber jumper, an output port OUT of the polarization controller 200 is connected with a channel 1 of the optical switch 400 through an optical fiber jumper, an optical output channel CH1 of the pump light source 300 is connected with a channel 2 of the optical switch 400 through an optical fiber jumper, and a public output port I/O of the optical switch 400 is connected with a CH1 channel and a CH2 channel of the power meter 600 through an optical fiber jumper.
The optical power of the signal light source 100 is stored and referenced, and when the time is regulated, the public output port I/O of the optical switch 400 is connected with a CH1 channel of the power meter 600 through an optical fiber jumper; and the optical power of the pump light source 300 is stored and referenced, and when the time is adjusted, the common output port I/O of the optical switch 400 is connected with the CH2 channel of the power meter 600 through an optical fiber jumper.
The present embodiment controls the communication state between the two input ends and the output end of the optical switch 400, so as to store and reference the optical power of the signal light source and the pump light source, and improve the detection accuracy.
In the detection, the optical fiber mixer 500 to be detected is connected, specifically: on the basis of the zeroing optical path, the optical switch 400 is detached from the power meter 600, as shown in fig. 7, the P1 port on the optical fiber mixer 500 to be tested is connected with the output end of the public output port I/O of the optical switch 400 through an optical fiber line, the P2 port of the optical fiber mixer 500 to be tested is connected with the CH1 channel of the power meter 600 through an optical fiber line, and the P3 port of the optical fiber mixer 500 to be tested is connected with the CH2 channel of the power meter 600 through an optical fiber line.
The optical fiber jumper wire improves light transmission and reduces loss, and both ends of the optical fiber jumper wire adopt FC/APC ends.
The optical switch 400 of the present embodiment adopts a1×2 optical switch structure.
The embodiment also provides a final inspection testing method, which comprises the following specific operation steps:
S1, connecting a public output port I/O of an optical switch 400 with the CH1 channel through an optical fiber jumper wire, performing optical power storage reference on a signal light source 100, and then performing zero setting;
S2, connecting a public output port I/O of the optical switch 400 with the CH2 channel through an optical fiber jumper wire, performing optical power storage reference on the pump light source 300, and then performing zero setting;
S3, connecting the optical fiber mixer 500 to be tested, disconnecting the optical switch 400 from the power meter 600, connecting a P1 port on the optical fiber mixer 500 to be tested with an output end of a public output port I/O of the optical switch 400 through an optical fiber line, connecting a P2 port of the optical fiber mixer 500 to be tested with a CH1 channel of the power meter 600 through an optical fiber line, and connecting a P3 port of the optical fiber mixer 500 to be tested with a CH2 channel of the power meter 600 through an optical fiber line;
S4, adjusting the optical switch 400 to a state of channel 1- & gt common output port I/O, wherein the laser of the signal light source 100 enters from the P1 port of the optical fiber mixer 500 to be tested, a part of the light is transmitted to the CH1 channel of the power meter 600 from the P2 port of the optical fiber mixer 500 to be tested, and another part of the light is transmitted from the P3 port of the optical fiber mixer 500 to be tested and reflected to the CH2 channel of the power meter 600, and in this process, parameters of the optical fiber mixer 500 to be tested can be measured: IL λs(P1→P2)、ISOλ s (P1→P3);
S5, operating the polarization controller 200, wherein the laser of the signal light source 100 enters from the P1 port of the optical fiber mixer 500 to be tested, and a part of the laser exits from the P2 port of the optical fiber mixer 500 to be tested and is transmitted to the CH1 channel of the power meter 600 to directly obtain the parameters of the optical fiber mixer 500 to be tested: PDL λ s (p1→p2);
S6, adjusting the optical switch 400 to a state of channel 2- & gt and common output port I/O, wherein the pump light source 300 laser enters from the P1 port of the optical fiber mixer 500 to be tested, a part of the light is transmitted to the CH1 channel of the power meter 600 at the P2 port of the optical fiber mixer 500 to be tested, and a part of the light is reflected to the CH2 channel at the P3 port of the optical fiber mixer 500 to be tested, and in this process, parameters of the optical fiber mixer 500 to be tested can be measured: IL λp(P1→P3)、ISOλ P (P1→P2).
According to the embodiment, the optical path switching state between the two input ends and the output end of the optical switch 400 is controlled, the Insertion Loss (IL) is tested, meanwhile, the isolation degree (ISO) can be measured, the problem that the isolation degree (ISO) is tested to have errors because the loss between optical fiber connection points is poor is avoided, the accuracy of test data is improved, the operation of the polarization controller 200 is controlled, the Polarization Dependent Loss (PDL) is also measured, the optical switch 400 is utilized for optical path switching, the frequency of connecting optical fibers in the test process is reduced, fine production is realized under the condition of simple optical paths, paper is saved, the test efficiency is improved, and the actual application requirements of industrial mass production are met.
Meanwhile, the utilization rate of equipment is improved, the actual operation process of the testing method can be tested by one-to-two, and the equipment utilization rate of expensive equipment 'signal light source 100 and pumping light source 300' is improved.
While the preferred embodiment of the present application has been described in detail, the application is not limited to the embodiments, and various equivalent modifications and substitutions can be made by those skilled in the art without departing from the spirit of the application, and these modifications and substitutions are intended to be included in the scope of the present application as defined in the appended claims.
Claims (3)
1. A final inspection testing method of an optical fiber mixer is characterized in that: it adopts the final inspection test light path, the final inspection test light path includes:
a signal light source;
A pump light source;
the signal light source is a width light source, the pumping light source is a width light source, and the signal light source and the pumping light source are both provided with a light output channel CH1;
a polarization controller having an output port and an input port, OUT and IN, respectively;
The optical switch is provided with a first input end, a second input end and an output end, namely a channel 1, a channel 2 and a public output port I/O;
the optical fiber mixer to be tested is provided with a P1 port, a P2 port and a P3 port;
a power meter having a CH1 channel and a CH2 channel;
The optical output channel CH1 of the signal light source is connected with the input port IN of the polarization controller through an optical fiber jumper, the output port OUT of the polarization controller 200 is connected with the channel 1 of the optical switch through the optical fiber jumper, and the optical output channel CH1 of the pumping light source is connected with the channel 2 of the optical switch through the optical fiber jumper;
The method comprises the following specific steps:
s1, connecting a public output port I/O of an optical switch with a CH1 channel of a power meter through an optical fiber jumper, performing optical power storage reference on a signal light source, and then performing zero setting;
s2, connecting a public output port I/O of the optical switch with a CH2 channel of a power meter through an optical fiber jumper, performing optical power storage reference on the pump light source 300, and then performing zero setting;
S3, connecting the optical fiber mixer to be tested, specifically: disconnecting the optical switch from the power meter, wherein a P1 port on the optical fiber mixer to be tested is connected with an output end of a public output port I/O of the optical switch 400 through an optical fiber line, a P2 port of the optical fiber mixer to be tested 500 is connected with a CH1 channel of the power meter through an optical fiber line, and a P3 port of the optical fiber mixer to be tested is connected with a CH2 channel of the power meter through an optical fiber line;
S4, adjusting the optical switch to a state of channel 1- & gt common output port I/O, wherein the signal light source laser enters from the P1 port of the optical fiber mixer 500 to be tested, one part of the light is transmitted to the CH1 channel of the power meter from the P2 port of the optical fiber mixer to be tested, and the other part of the light is transmitted from the P3 port of the optical fiber mixer to be tested, reflected to the CH2 channel of the power meter, and parameters of the optical fiber mixer to be tested are measured: IL λs(P1→P2)、ISOλ s (P1→P3);
S5, operating the polarization controller 200, enabling the laser of the signal light source to enter from the P1 port of the optical fiber mixer to be tested, enabling a part of the laser to come out from the P2 port of the optical fiber mixer to be tested, transmitting the laser to the CH1 channel of the power meter, and measuring parameters of the optical fiber mixer 500 to be tested: PDL λ s (p1→p2);
S6, adjusting the optical switch to a state of channel 2-common output port I/O, enabling pumping light source laser to enter from a P1 port of the optical fiber mixer to be tested, enabling a part of light to be transmitted to a CH1 channel of the power meter at a P2 port of the optical fiber mixer to be tested, enabling a part of light to be reflected into the CH2 channel at a P3 port of the optical fiber mixer to be tested, and measuring parameters of the optical fiber mixer to be tested: IL λp(P1→P3)、ISOλ P (P1→P2).
2. The method for final inspection testing of an optical fiber mixer of claim 1, wherein:
And the two ends of the optical fiber jumper are FC/APC ends.
3. The method for final inspection testing of an optical fiber mixer of claim 1, wherein: the optical switch is of a1×2 optical switch structure.
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| CN106338797B (en) * | 2016-11-17 | 2019-03-29 | 南京大学 | A kind of optoisolator light path system |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102192830A (en) * | 2010-12-10 | 2011-09-21 | 上海霍普光通信有限公司 | PLC (Programmable Logic Controller) type optical splitter testing method |
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