CN105204124B - Optical module and optical fiber coupling detection method - Google Patents
Optical module and optical fiber coupling detection method Download PDFInfo
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- CN105204124B CN105204124B CN201510588872.9A CN201510588872A CN105204124B CN 105204124 B CN105204124 B CN 105204124B CN 201510588872 A CN201510588872 A CN 201510588872A CN 105204124 B CN105204124 B CN 105204124B
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/24—Coupling light guides
- G02B6/42—Coupling light guides with opto-electronic elements
- G02B6/4201—Packages, e.g. shape, construction, internal or external details
- G02B6/4204—Packages, e.g. shape, construction, internal or external details the coupling comprising intermediate optical elements, e.g. lenses, holograms
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/24—Coupling light guides
- G02B6/42—Coupling light guides with opto-electronic elements
- G02B6/4201—Packages, e.g. shape, construction, internal or external details
- G02B6/4219—Mechanical fixtures for holding or positioning the elements relative to each other in the couplings; Alignment methods for the elements, e.g. measuring or observing methods especially used therefor
- G02B6/422—Active alignment, i.e. moving the elements in response to the detected degree of coupling or position of the elements
- G02B6/4225—Active alignment, i.e. moving the elements in response to the detected degree of coupling or position of the elements by a direct measurement of the degree of coupling, e.g. the amount of light power coupled to the fibre or the opto-electronic element
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- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Optical Couplings Of Light Guides (AREA)
- Optical Communication System (AREA)
Abstract
The invention discloses a method for detecting coupling of an optical module and an optical fiber, which solves the technical problem of low efficiency of a mode for detecting coupling of the optical module and the optical fiber. The method comprises the following steps: adjusting the spatial position of the N paths of optical lens arrays; acquiring the optical power of N optical signals output by the N single-mode optical fibers from the output end of the optical power meter; displaying the optical power of the N paths of optical signals with a first resolution as N histograms, wherein the optical power and the height of the histograms are in a direct proportion relation; adjusting the spatial position of the N-path optical lens array based on the states of the N histograms so that the tops of the N histograms are positioned between the first reticle and the second reticle; the first marked line and the second marked line are used for displaying graphs of the minimum value and the maximum value of the allowed power, and when the top ends of the histograms corresponding to the N paths of optical signals are located between the first marked line and the second marked line, the coupling degree of the optical module and the optical fiber is optimal. The complicated steps of manual recording and comparison are omitted in an intuitive mode, and the detection efficiency is improved.
Description
Technical field
The present invention relates to technical field of photo communication, more particularly to a kind of optical module and fiber coupling detection method.
Background technology
In existing optical communication technique, carrier of the optical signal as information at a high speed, for a long time, reliably can be transmitted
Information；And optical module is used as the core component of technical field of photo communication, its optical element and the coupling of the optical fiber as transmission path
Close effect and directly affect the quality of the intensity and optical signal that exports optical signal, thus the coupling effect of optical module and optical fiber into
To affect the key factor of information transfer.
In order that optical module be connected with optical fiber possess optimum the degree of coupling, optical module before dispatching from the factory, need to optical module with
The degree of coupling of optical fiber detected and debugged, and after ensureing that the optical module for dispatching from the factory is connected with optical fiber, can transmit high power and height
The optical signal of quality.
Generally, the optical element in optical module is an optical lens array, and in array, each optical lenses are responsible for change
The transmission path of optical signal all the way；Therefore, the locus of optical lens array are adjusted, the light path of optical signal can be adjusted, made
Optical signal is as complete by fiber-optic transfer as possible, that is, the locus by adjusting optical lens array, can change optical mode
The degree of coupling of block and optical fiber.As a example by optical lens array comprising 12 row optical lenses, to optical module before optical module dispatches from the factory
During test with fiber coupling degree, by the signal of telecommunication input optical module of fixed current, optical module is by the fixed current signal of telecommunication
Optical signal is converted to, testing staff adjusts the locus of optical lens array manually, and optical signals optical lenses change path
After transmit to optical fiber；Then intensity of testing staff's measurement per the optical signal of string optical lenses transmission, namely Output optical power,
Manually recorded 12 groups of luminous powers, and every group of luminous power is compared with optical power threshold, if 12 groups of luminous power is both greater than threshold
Value, then illustrate degree of coupling conformance with standard, if there is the luminous power less than threshold value, illustrates the space bit of the optical lenses of correspondence array
Put and also need to adjustment, then need to continue the locus for manually adjusting optical lens array, detect Output optical power, and record
With compare luminous power, until 12 groups of outputs luminous power be both greater than threshold value till.And above-mentioned detection is only for the electricity of fixed current
Signal input is carried out, and is to ensure that optical module adapts to the input electrical signal of many electric currents, is then needed the signal of telecommunication for each current value
Above-mentioned detection work is carried out once again.
It can be seen that, it is loaded down with trivial details to there is detection mode in existing optical module and the mode that fiber coupling is detected, causes detection efficiency low
Under technical problem.
The content of the invention
It is an object of the invention to provide a kind of optical module and fiber coupling detection method, solve in prior art optical module with
The technical problem of fiber coupling detection mode inefficiency.
The purpose of the present invention is achieved through the following technical solutions：
A kind of optical module and fiber coupling detection method are proposed, the optical module includes changing optical signaling paths
N roads optical lens array；The outfan of the optical module is connected with N roads single-mode fiber；The outfan of N roads single-mode fiber point
The N roads input of light power meter is not connected to；Characterized in that, comprising the following steps：Step S1：Adjust N roads optical lens
The locus of lens array；Step S2：The N roads light of N roads single-mode fiber output is obtained from the outfan of the light power meter
The luminous power of signal；N is the integer more than or equal to 1；Step S3：The luminous power of N roads optical signal is shown with first resolution
For N number of rectangular histogram, and luminous power and histogram height proportional；Step S4：Adjusted based on N number of histogrammic state
The locus of whole N roads optical lens array, so that N number of histogrammic top is located at the first graticule and the second graticule
Between；Wherein, first graticule is the figure shows for allowing power minimum, and second graticule is to allow power maximum
Figure shows.
Further, after step S1, methods described also includes：Step S21：On the N roads, optical signal output is first
In stage beginning, the luminous power of the N roads optical signal of N roads single-mode fiber output is obtained from the outfan of the light power meter；Step
S22：Show the luminous power of N roads optical signal as N number of rectangular histogram with second resolution；The second resolution is more than described the
One resolution.
Further, after step s4, methods described also includes：Step S5：Store the light work(of N roads optical signal
Rate.
Further, after step s 5, methods described also includes：Step S6：Increase reduces the defeated of the optical module
Enter the current value of the signal of telecommunication；Step S7：Repeat step S1 is to step S6, until the electricity of the signal of telecommunication of the input optical module
Flow valuve reaches pre-set current value.Step S8：Luminous power and the electric current of input electrical signal based on the N roads optical signal of storage
Value, for every road optical signal, shows the relation curve of luminous power and input electrical signal current value, in order to judge every road optical signal
The concordance of correspondence optical channel.
Further, in the relation curve for showing luminous power and input electrical signal current value simultaneously, step S9：Show consistent
Property upper limit curve and concordance lower limit curve；Wherein, figure shows of the concordance upper limit curve for the optical channel concordance upper limit, one
Figure shows of the cause property lower limit curve for optical channel concordance lower limit.
Further, in step S4 simultaneously, methods described also includes：In the corresponding rectangular histogram of N roads optical signal, if Nogata
The top of figure is located between first graticule and second graticule, shows rectangular histogram with the first color；If histogrammic top
End shows rectangular histogram with the second color positioned at the lower section of the first graticule；If histogrammic top is located at the top of the second graticule, with
3rd color shows rectangular histogram.
Further, in step S1, the locus of N roads optical lens array are adjusted using bonder.
Further, in step s 6, by coupling measurement module by increase or reduce input electrical signal current value
It is input in the optical module；Communicated by iic bus between the coupling measurement module and the optical module.
Embodiment of the present invention technical scheme, its technique effect having or advantage are：In the present patent application embodiment, light
Module includes the N roads optical lens array for changing optical signaling paths；The outfan of optical module is connected with N roads single-mode optics
It is fine；The outfan of N roads single-mode fiber is connected to the N roads input of light power meter；In the coupling of detection optical module and optical fiber
When spending, sent after the corresponding optical signal in N roads according to the N roads signal of telecommunication control laser instrument of input, adjust N roads optical lenses battle array first
The locus of row, to realize changing the transmission path of N roads optical signal so that N roads optical signal can be exported to corresponding single mode
Can be transmitted by single-mode fiber in optical fiber, the N roads optical signal of N roads single-mode fiber output is then obtained from the outfan of light power meter
Luminous power；In prior art, N number of optical power value of testing staff's manually recorded detection N roads optical signal output, and by N number of light
Performance number is compared with Output optical power threshold value, when between optical power threshold here and optical module and optical fiber, the degree of coupling is good
Output optical power value it is corresponding, if there is Output optical power not meet optical power threshold, need according to comparative result continue adjust
The locus of whole optical lenses, record Output optical power again and compare, until the Output optical power of N roads optical signal all meets
Decoupling calls, to overcome the test pattern of this inefficiency, in the embodiment of the present invention, control module or main frame are automatically from light
The outfan of energy meter obtains the luminous power of the N roads optical signal of N roads single-mode fiber output, and shows N roads light with first resolution
The luminous power of signal is N number of rectangular histogram, and luminous power and histogram height proportional；That is, N roads output optical signal
In, if Output optical power is high, rectangular histogram just height is corresponded to, if Output optical power is low, corresponding rectangular histogram is just low, by rectangular histogram
Intuitively recognize the watt level of the output light of each light path, also set the first graticule and the second graticule, by rectangular histogram top
Recognize in N roads output optical signal with the position relationship of the first graticule and the second graticule, which road output optical signal meets the degree of coupling
Require, which road output optical signal does not meet degree of coupling requirement, and the first graticule here is the figure shows for allowing power minimum,
Second graticule is the figure shows for allowing power maximum, when optical signal corresponding all histogrammic tops in N roads are all located at the
When between one graticule and the second graticule, illustrate that the luminous power of N roads optical signal output all meets Output optical power requirement, illustrate light
The degree of coupling of module and optical fiber is good, if there is rectangular histogram less than the first graticule or the situation higher than the second graticule, illustrates
Optical module is undesirable with the coupling of optical fiber；Then can be based on the sky of N number of histogrammic state adjustment N roads optical lens array
Between position, after spatial position change, the outgoing route of N roads optical signal changes, then Output optical power can also produce change, and correspondence is straight
The height of square figure will produce change, then can adjust the locus of optical lenses based on histogrammic change, until N number of
Rectangular histogram is all located between the first graticule and the second graticule.
In this optical module and fiber coupling detection method, the light work(that rectangular histogram intuitively understand output optical signal can be passed through
Rate, and the position relationship by rectangular histogram with the first graticule and the second graticule intuitively understands whether Output optical power meets output light
Power requirement, in the position for adjusting optical lenses meanwhile, it is capable to passing through histogrammic change understands Output optical power change in real time,
Stop adjusting the locus of optical lenses when all rectangular histograms are all between the first graticule and the second graticule, it is and existing
Technology is compared, using in the coupling detecting method that the embodiment of the present invention is proposed, without the need for recording output light respectively for N roads optical signal
Luminous power, need not compare and judge, more without the need for repeating record output light when optical module and fiber coupling degree are undesirable
Power and repetition are compared and are judged, solve the technology of optical module and fiber coupling detection mode inefficiency in prior art
Problem.
Description of the drawings
Fig. 1 is the Organization Chart of the optical module that the embodiment of the present invention is proposed and fiber coupling detection means；
Fig. 2 is the connection figure of the optical module that the embodiment of the present invention is proposed and fiber coupling detection means；
Fig. 3 is the flow chart of the optical module that the embodiment of the present invention is proposed and fiber coupling detection method；
Fig. 4 is that the optical module that the embodiment of the present invention is proposed detects rectangular histogram with fiber coupling；
Fig. 5 is the consistent linearity curve of optical channel that the embodiment of the present invention is proposed.
Specific embodiment
In order that the object, technical solutions and advantages of the present invention are clearer, below in conjunction with accompanying drawing the present invention is made into
One step ground is described in detail, it is clear that described embodiment is only a part of embodiment of the invention, rather than the enforcement of whole
Example.Based on the embodiment in the present invention, what those of ordinary skill in the art were obtained under the premise of creative work is not made
All other embodiment, belongs to the scope of protection of the invention.
Below in conjunction with accompanying drawing, technical scheme provided in an embodiment of the present invention is described in detail.
The optical module that the embodiment of the present invention is proposed and fiber coupling detection method, based on optical module and optical fiber shown in Fig. 1
Coupling detection means, the device include optical module 11, and 11 outfan OUT of optical module connection optical fiber 12, coupling measurement module
13rd, light power meter 14 and control module 15；The input of the first control end connection coupling measurement module 13 of control module 15, coupling
The outfan for closing test module 13 connects the input of optical module 11；The outfan of optical fiber 12 connects the input of light power meter 14
End, the outfan link control module 15 of light power meter 14.
Control module 15 sends the signal of telecommunication to coupling measurement module 13, and coupling measurement module 13 converts electrical signals to optical mode
The receivable electric signal output of block is to optical module 11；Optical module 11 converts electrical signals to optical signal and exports to optical fiber 12；Optical fiber
Optical signal is exported to the input of light power meter 14 by 12, and the luminous power of the collection optical signal of light power meter 14 is exported to control module
15；Luminous power is compared by control module 15 with predetermined power, and exports comparative result.Generally, control module 15 is using electricity
Brain or control mainboard, its reserved USB interface realize data communication with external equipment, and the correspondence with foreign country of optical module 11 is to be based on
What iic bus were carried out, therefore coupling measurement module 13 here will control mould for realizing the conversion of USB interface to IIC interfaces
The signal of telecommunication that block 15 sends is sent to optical module in IIC modes.
Also include bonder in the device；Optical module includes laser instrument and changes light transmission path device, such as optics
Lens；The signal of telecommunication received from coupling measurement module is converted into optical signal launch by laser instrument；And change light transmission path device
For receiving the optical signal of laser instrument transmitting, and change the transmission path of optical signal so that optical signal is exported to optical fiber；Bonder
It is connected with light output path device is changed, for adjusting the locus for changing light output path device, so as to change optical signal
Outgoing route, so as to change the luminous power of the optical signal of optical fiber output.Bonder can be controlled by control module 15, also can artificial hand
Dynamic control, the present embodiment is not limited, preferably by control module control, by ladder it is progressive or decrescence in the way of progressively adjust and change
Darkening is published books the locus of path device.
In the embodiment of the present invention, optical module, while transmitting multipath light signal therefore is changed suitable for being connected with multimode fibre
Light transmission path device is one group includes the N roads optical lens array of N number of optical lenses, and the N roads optical lens array is used as one
Individual entirety is adjusted by bonder, while realizing N roads optical lenses locus and same position adjustment.Then, in detection light
During the degree of coupling of module and optical fiber, it is the multipath light signal for obtaining transmission, N roads signal is transmitted respectively using N roads single-mode fiber and is entered
Row test, as shown in Fig. 2 control module 15 sends the N roads signal of telecommunication, optical module receives the N road signals of telecommunication and is converted to N roads light letter
Number, changed after transmission path by N roads optical lens array respectively, per road optical signals, single-mode fiber 121 is received and is transmitted all the way,
The N roads input of light power meter 14 receives the N roads optical signal of N roads single-mode fiber output, and exports the output light work(of N roads optical signal
Rate, realizes the good coupling of optical module and optical fiber when the luminous power of N roads output light all meets Output optical power requirement.
Based on above-mentioned, the embodiment of the present invention proposes a kind of optical module and fiber coupling detection method, as shown in figure 3, including
Following steps：
Step S1：Adjust the locus of N roads optical lens array；
By the locus for adjusting N roads optical lens array, change the transmission path of N roads input optical signal, so as to change
Become the Output optical power of N roads optical signal, realize changing the degree of coupling of optical module and optical fiber.
Step S2：The luminous power of the N roads optical signal of N roads single-mode fiber output is obtained from the outfan of light power meter；N is big
In the integer equal to 1；
Step S3：The luminous power of N roads optical signal is shown as N number of rectangular histogram with first resolution, and luminous power and rectangular histogram
Height proportional；
The luminous power of output optical signal is high, then rectangular histogram is just high, and the luminous power for exporting optical signal is low, then rectangular histogram is just low,
Therefore, histogrammic height directly reflects the luminous power size of output optical signal.
Step S4：Based on the locus of N number of histogrammic state adjustment N roads optical lens array, so that N number of rectangular histogram
Top be located between the first graticule and the second graticule；Wherein, the first graticule be allow power minimum figure shows, second
Graticule is the figure shows for allowing power maximum.
First graticule is the figure shows for allowing power minimum, and the second graticule is that the figure for allowing power maximum shows
Show, it is allowed to which power is corresponding Output optical power when optical module is optimal with fiber coupling degree.The first graticule for then setting and second
Graticule delimit an Output optical power interval, meet the requirements with the optical signal power in the second graticule interval in the first graticule
Output optical power, namely output optical signal of the luminous power in the interval, its corresponding light path realizes optimized transmission
Optical signal path.The Output optical power of N roads optical signal all in this it is interval when, optical module is optimal with fiber coupling degree.
Therefore, the position relationship by rectangular histogram top with the first graticule and the second graticule will be understood that N roads output light
In signal, which road output optical signal meets degree of coupling requirement, and which road output optical signal does not meet degree of coupling requirement, as shown in figure 4,
When optical signal corresponding all histogrammic tops in N roads are all located between the first graticule and the second graticule, N roads optical signal is illustrated
The luminous power of output all meets Output optical power requirement, illustrates that the degree of coupling of optical module and optical fiber is good, if there is rectangular histogram
Less than the first graticule or the situation higher than the second graticule, then illustrate that optical module is undesirable with the coupling of optical fiber；Then can be with
Based on the locus of N number of histogrammic state adjustment N roads optical lens array, after spatial position change, N roads optical signal it is defeated
Outbound path changes, then Output optical power can also produce change, and the histogrammic height of correspondence will produce change, then can be based on straight
The locus changed to adjust optical lenses of square figure, until N number of rectangular histogram is all located between the first graticule and the second graticule.
In order to more easily observe the difference between the luminous power of each road optical signal, and with the first graticule and the second graticule
Position relationship, rectangular histogram can be shown as follows：In the corresponding rectangular histogram of N roads optical signal, if histogrammic top
Between the first graticule and the second graticule, rectangular histogram is shown with the first color；If histogrammic top is located at the first graticule
Lower section, shows rectangular histogram with the second color；If histogrammic top is located at the top of the second graticule, Nogata is shown with the 3rd color
Figure.For example, the first color is green, and the second color is pink colour, and the 3rd color is blueness, then shown in green rectangular histogram, its
The luminous power of corresponding optical signal meets the output for requiring, is shown as pink colour, and the luminous power of its corresponding optical signal is too small,
It is shown as blue, the luminous power of its corresponding optical signal is excessive；When complete shown in green, show optical module and fiber coupling degree
Most preferably.
In this optical module and fiber coupling detection method, the light work(that rectangular histogram intuitively understand output optical signal can be passed through
Rate, and the position relationship by rectangular histogram with the first graticule and the second graticule intuitively understands whether Output optical power meets output light
Power requirement, in the position for adjusting optical lenses meanwhile, it is capable to passing through histogrammic change understands Output optical power change in real time,
Stop the locus to optical lenses to adjust when all rectangular histograms are all between the first graticule and the second graticule.Existing skill
In art, N number of optical power value of testing staff's manually recorded detection N roads optical signal output, and by N number of optical power value and output light work(
Rate threshold value is compared, optical power threshold here and the Output optical power value phase when degree of coupling is good between optical module and optical fiber
Correspondence, if there is Output optical power not meet optical power threshold, needs to continue the space of adjustment optical lenses according to comparative result
Position, records again and Output optical power compares, until the Output optical power of N roads optical signal all meets decoupling calls, and existing
Technology is compared, using in the coupling detecting method that the embodiment of the present invention is proposed, without the need for recording output light respectively for N roads optical signal
Luminous power, need not compare and judge, more without the need for repeating record output light when optical module and fiber coupling degree are undesirable
Power and repetition are compared and are judged, solve the technology of optical module and fiber coupling detection mode inefficiency in prior art
Problem.
The optical module that the embodiment of the present invention is proposed and fiber coupling detection method, by histogrammic display, can be directly perceived
The luminous power size for showing output optical signal, it is by the delimitation of the first graticule and the second graticule, can be directly perceived decoupling
Degree, the step of saving manual record and compare, improves detection efficiency, and can in avoiding manually recorded and comparison procedure
The mistake that can occur and error.Also, the embodiment of the present invention, moreover it is possible to intuitively show multipath light signal transmission channel itself one
Diversity between cause property and each passage, can avoid the inadequate and each channel difference opposite sex of passage consistency larger and cause to produce
Product are unqualified.
It is specific as shown in figure 3, for intuitively can show multipath light signal transmission channel itself concordance and each
Diversity between passage, after step s4, performs following steps：
Step S5：The luminous power of storage N roads optical signal.
Step S6：The current value of the input electrical signal of increase or reduction optical module.
Step S7：Repeat step S1 is to step S6, until the current value of the signal of telecommunication of input optical module reaches predetermined current
Value.
Judge the concordance of the transmission channel of an optical signal, to test different current value input electrical signals, observation output
Whether the luminous power of optical signal all meets requires Output optical power to judge, if meeting, illustrates that the passage possesses concordance,
That is, when optical module is optimal with fiber coupling degree, the corresponding optical signal that exports of different current value input electrical signals also all meets requirement
Output optical power.
In this step, after step S4 realizes that optical module is optimal with fiber coupling degree, with certain trend, for example, increase
Main trend reduces trend, and the mode for being incremented by according to ladder or successively decreasing changes input electrical signal current value, often changes once,
Repeat step S1 to S6, until the current value for changing reaches default current limit value.
Often change the current value of an input electrical signal, corresponding record exports the luminous power of optical signal, then execution step
S8：Luminous power and the current value of input electrical signal based on the N roads optical signal of storage, for every road optical signal, shows luminous power
With the relation curve of input electrical signal current value, in order to judge the concordance of every road optical signal correspondence optical channel.
As shown in figure 5, with from the beginning of minimum current, as a example by incrementally changing size of current, for N roads optical channel,
Then with electric current as transverse axis, Output optical power is the longitudinal axis, can show that the consistent linearity curve of N bar optical channels, if each passage is consistent
Property meet the requirements, then consistent linearity curve is essentially identical, and dispersibility is little.
Step S9：Display consistency upper limit curve and concordance lower limit curve；Wherein, concordance upper limit curve is optical channel
The figure shows of the concordance upper limit, figure shows of the concordance lower limit curve for optical channel concordance lower limit.
Concordance upper limit curve and concordance lower limit curve define interval, a concordance song in the interval
Line, the concordance of correspondence optical channel meet the requirements, and otherwise illustrate that the concordance of optical channel is bad, product can be caused unqualified.
Optical signal correspondence in N roads consistent linearity curve is shown simultaneously, the diversity between each passage can be intuitively understood, if
The consistent linearity curve dispersibility of each passage is larger, also results in product unqualified.
Gathered by big data in the above described manner and observe conforming mode, N number of optical channel can be known early
Concordance, so as to find to cause to even underproof factor out as early as possible, it is to avoid the wasting of resources that bad products are caused to enterprise.
It is above-mentioned, adjust the locus of N roads optical lens array, change be N roads optical signal propagation path, if adjusting
It is improper, it may appear that the phenomenon that all light-pathes go out light can not be met, it is can intuitively to understand whether each passage goes out light, performs：
Step S21：The starting stage of optical signal output on N roads, N roads single-mode fiber is obtained from the outfan of light power meter defeated
The luminous power of the N roads optical signal for going out；
Step S22：Show the luminous power of N roads optical signal as N number of rectangular histogram with second resolution；Second resolution is more than the
One resolution.
Here second resolution be more than first resolution, equivalent in rectangular histogram amplify luminous power scale, so as to
Can be in the starting stage after adjusting N roads optical lens array, it will be apparent that it was observed that rectangular histogram, observes N number of optical channel with this
In whether all go out light；If can not there is the passage of light, N roads optical lens array is adjusted by way of same trend is finely tuned, until
After all light-pathes all go out light, then execution step S1.
The optical module proposed based on the embodiments of the present invention and fiber coupling detection method, can design a visualization
Using, in coupling detection process, all operations that application can be gathered in whole test are visualized, it is responsible by different current values
Write optical module, gathers and shows the output optical signal power number of each optical channel in real time by RS232 serial ports from light power meter
According to the data of control module analysis being entered column hisgram and are shown, and support is to data, preservation function of picture etc..N roads optical lens
The locus of lens array are adjusted by controlling bonder, can be arranged and be adjusted button, realize artificial in visualization application
The progress of control and regulation.It is USB interface due to carry the generally reservation of the equipment such as the main frame of control module, and what optical module retained
It is IIC interfaces, then coupling measurement module is responsible for the conversion of USB interface to IIC interfaces, passes through iic bus side between optical module
Formula communicates, and different current values are sent to optical module by coupling measurement module.
Here light power meter is the program control luminous power collecting device of multichannel, supports the calculating of different wave length luminous power,
Hold the access of the joints of optical fibre such as FC types, SC types, LC types, ST types.The optical signal that optical module sends is led to by fiber-optic transfer, optical fiber
Cross the joints of optical fibre and be connected to the program control luminous power collecting device of multichannel, the program control collecting device of multichannel turns according to the wavelength of setting
Change luminous power into, control module is communicated with the program control luminous power collecting device of multichannel by RS232 buses, according to communication protocol,
The luminous power of the program control luminous power collecting device conversion of Real-time Collection multichannel.
In optical module and fiber coupling detection method that the embodiments of the present invention are proposed, with rectangular histogram and the side of curve
Formula, makes tester intuitively understand the concordance of degree of coupling and each optical channel between optical module and optical fiber, and between
Observation is adjusted, and can eliminate testing staff's record and the tedious steps for comparing, simplify operation, improve the effect of detection
Rate, additionally it is possible to find substandard product early, improves yield rate.
, but those skilled in the art once know basic creation although preferred embodiments of the present invention have been described
Property concept, then can make other change and modification to these embodiments.So, claims are intended to be construed to include excellent
Select embodiment and fall into the had altered of the scope of the invention and change.
Obviously, those skilled in the art can carry out the essence of various changes and modification without deviating from the present invention to the present invention
God and scope.So, if these modifications of the present invention and modification belong to the scope of the claims in the present invention and its equivalent technologies
Within, then the present invention is also intended to comprising these changes and modification.
Claims (4)
1. optical module and fiber coupling detection method, the optical module include the N roads optical lens of change optical signaling paths
Lens array；The outfan of the optical module is connected with N roads single-mode fiber；The outfan of N roads single-mode fiber is connected to
The N roads input of light power meter；Characterized in that, comprising the following steps：
Step S1：Adjust the locus of N roads optical lens array；
Step S2：The luminous power of the N roads optical signal of N roads single-mode fiber output is obtained from the outfan of the light power meter；
N is the integer more than or equal to 1；
Step S3：The luminous power of N roads optical signal is shown as N number of rectangular histogram with first resolution, and N roads optical signal
Luminous power and N number of histogram height proportional；
Step S4：The locus of N roads optical lens array are adjusted based on N number of histogrammic state, so that the N
Individual histogrammic top is located between the first graticule and the second graticule；Wherein, first graticule is to allow power minimum
Figure shows, second graticule are the figure shows for allowing power maximum；
Step S5：Store the luminous power of N roads optical signal;
Step S6：Increase or reduce the current value of the input electrical signal of the optical module；
Step S7：Repeat step S1 to step S6, until the current value of the signal of telecommunication of the input optical module reach it is default
Current value;
Step S8：Luminous power and the current value of input electrical signal based on the N roads optical signal of storage, for every Lu Guangxin
Number, the relation curve of luminous power and input electrical signal current value is shown, in order to judge the one of every road optical signal correspondence optical channel
Cause property;
Step S9：While the relation curve of luminous power and input electrical signal current value is shown, display consistency upper limit curve
With concordance lower limit curve；Wherein, figure shows of the concordance upper limit curve for the optical channel concordance upper limit, concordance lower limit are bent
Figure shows of the line for optical channel concordance lower limit.
2. optical module according to claim 1 and fiber coupling detection method, it is characterised in that in step S4 simultaneously, institute
Stating method also includes：
In the corresponding rectangular histogram of N roads optical signal, if histogrammic top be located at first graticule and second graticule it
Between, rectangular histogram is shown with the first color；
If histogrammic top is located at the lower section of the first graticule, rectangular histogram is shown with the second color；
If histogrammic top is located at the top of the second graticule, rectangular histogram is shown with the 3rd color.
3. optical module according to claim 1 and fiber coupling detection method, it is characterised in that in step S1, using coupling
Clutch adjusts the locus of N roads optical lens array.
4. optical module according to claim 1 and fiber coupling detection method, it is characterised in that in step s 6, pass through
Coupling measurement module is input into the current value of the input electrical signal for increasing or reducing in the optical module；The coupling measurement module
Communicated by iic bus between the optical module.
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| CN111897062B (en) * | 2020-07-28 | 2022-03-08 | 武汉电信器件有限公司 | Optical path coupling method and device and storage medium |
| CN114578493B (en) * | 2020-12-01 | 2024-08-27 | 佳必琪国际股份有限公司 | Light coupling method of optical module |
| CN113433631B (en) * | 2021-07-23 | 2023-01-31 | 苏州格拉尼视觉科技有限公司 | Progressive mode search coupling method based on visual guidance and active mode |
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