CN106575999A - Optical fiber coupling system and method - Google Patents
Optical fiber coupling system and method Download PDFInfo
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- CN106575999A CN106575999A CN201480081173.9A CN201480081173A CN106575999A CN 106575999 A CN106575999 A CN 106575999A CN 201480081173 A CN201480081173 A CN 201480081173A CN 106575999 A CN106575999 A CN 106575999A
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- 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
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Abstract
Disclosed are an optical fiber coupling system and method. The system comprises an optical coupler (110), a first optical power detector (PD) (120), an input optical fiber (130) and a first adjustment platform (140); the optical coupler (110) is used to transmit incident light input via a first input port (111) to the input optical fiber (130) via an output port (113); the input optical fiber (130) is used to transmit the incident light to an input optical waveguide coupler, and transmit to the output port (113) reflected light reflected from the input optical waveguide coupler; the optical coupler (110) is also used to output the reflected light via the first input port (111) and a second input port (112); the first optical PD (120) is used to detect an optical power of the reflected light output via the second input port (112); and the first adjustment platform (140) is used to adjust the position of the input optical fiber (130) according to the optical power of the reflected light. An embodiment of the present invention improves an optical fiber coupling efficiency.
Description
The present invention relates to optical communication field, and more particularly, to the system and method for fiber coupling.
Silicon light technology is the focus of current optical communication industry circle and academia.Nearly all optical passive component such as device such as modulator, wave filter, photo-coupler, wavelength division multiplexer and Wave decomposing multiplexer, can be realized by silicon light technology.Optical passive component based on silicon light generally comprises an input waveguide coupler and an output optical waveguide coupler, is respectively used to import the light in optical fiber and export optical passive component.Only the light in optical fiber is successfully coupled in optical passive component, then the light in optical passive component is successfully coupled out, device could be tested, its performance is verified.Therefore, the coupling of optical passive component and optical fiber, one of most critical technology and most basic precondition as its test and commercialization.The quality of fiber coupling, directly influences testing efficiency, test accuracy, properties of product and the yield rate of product.
Common fiber coupling flow is：The optical signal that light source is produced is coupled into the input waveguide coupler of piece glazing device (optical passive component) from input optical fibre first, after piece glazing device, output optical fibre is coupled into from the output optical waveguide coupler of piece glazing device, and then received by optical power detector (power detector, PD).The power for the light transmitted from piece glazing device that the position of input optical fibre and output optical fibre is detected according to optical power detector is adjusted.
The coupling of optical fiber and piece glazing device is input and the coupled cascade twice of output end, and is relied on each other.If light is not coupled into device (even if deviation only has several um) to input, then output end can not be just aligned forever；Vice versa.Cascade control while either the fiber coupling of input or output end is all alignment coupling twice.This Cascade control difficulty is big, and time-consuming, influences the efficiency of fiber coupling.
The content of the invention
The embodiments of the invention provide a kind of system and method for fiber coupling, it is possible to increase the efficiency of fiber coupling.
First aspect there is provided a kind of system of fiber coupling, including：
Photo-coupler 110, the first optical power detector 120, the regulating platform 140 of input optical fibre 130 and first；
Photo-coupler 110 includes first input port 111, the second input port 112 and output port 113,
Photo-coupler 110 is used to the incident light inputted from first input port 111 being transferred to input optical fibre 130 from output port 113；
Input optical fibre 130 is used to couple with the input waveguide coupler of piece glazing device, by incident light transmission to input waveguide coupler, and by the reflected light pass returned from input waveguide coupler reflectivity to output port 113；
Photo-coupler 110 is additionally operable to export the reflected light inputted from output port 113 from the input port 112 of first input port 111 and second；
First optical power detector 120 is used for the luminous power for detecting the reflected light exported from the second input port 112；
First regulating platform 140 is used for the luminous power of the reflected light detected according to the first optical power detector 120, adjusts the position of input optical fibre 130.
With reference to first aspect, in the first possible implementation, first regulating platform 140 makes the luminous power of the reflected light of the first optical power detector 120 detection reach maximum and sensitive to the change in location of input optical fibre 130 specifically for the position of regulation input optical fibre 130.
With reference to the first possible implementation of first aspect or first aspect, in second of possible implementation, the system also includes：
Output optical fibre 150, the second regulating platform 160 and the second optical power detector 170；
Output optical fibre 150 is used to couple with the output optical waveguide coupler of piece glazing device, and the transmitted light exported from output optical waveguide coupler is transferred into the second optical power detector 170；
Second optical power detector 170 is used for the luminous power for detecting the transmitted light exported from output optical fibre 150；
Second regulating platform 160 is used for the luminous power of the transmitted light detected according to the second optical power detector 170, adjusts the position of output optical fibre 150.
With reference to second of possible implementation of first aspect, in the third possible implementation, second regulating platform 160 makes the luminous power of the transmitted light of the second optical power detector 170 detection reach maximum and sensitive to the change in location of output optical fibre 150 specifically for the position of regulation output optical fibre 150.
With reference to the second of first aspect or three kind of possible implementation, in the 4th kind of possible implementation, the system also includes：
Controller 180, for the luminous power of the reflected light detected according to the first optical power detector 120, the first regulating platform 140 of control adjusts the position of input optical fibre 130；The luminous power of the transmitted light detected according to the second optical power detector 170, the second regulating platform 160 of control adjusts the position of output optical fibre 150.
Any of first to fourth kind of possible implementation with reference to first aspect or first aspect possible implementation, in the 5th kind of possible implementation, the system also includes：
Light source selection device 190, for selecting it will be seen that the incident light of light source or communication band light source is input to first input port 111.
With reference to the 5th kind of possible implementation of first aspect, in the 6th kind of possible implementation, optical routing device 190 is photoswitch or photo-coupler.
Second aspect, there is provided a kind of method of fiber coupling, the system that this method is used for fiber coupling, the system includes photo-coupler, the first optical power detector, input optical fibre and the first regulating platform, and photo-coupler includes first input port, the second input port and output port；
This method includes：
The first incident light inputted from the first input port of photo-coupler is transferred to by input optical fibre from the output port of photo-coupler by photo-coupler；
By input optical fibre by the input waveguide coupler of the first incident light transmission to piece glazing device, and by the output port of the reflected light pass returned from input waveguide coupler reflectivity to photo-coupler；
The reflected light inputted from the output port of photo-coupler is exported from the first input port of photo-coupler and the second input port by photo-coupler；
The luminous power of the reflected light exported from the second input port of photo-coupler is detected by the first optical power detector；
The luminous power of the reflected light detected according to the first optical power detector, the position of input optical fibre is adjusted by the first regulating platform, so that input optical fibre is in the optimum position coupled with input waveguide coupler.
With reference to second aspect, in the first possible implementation, the luminous power of the reflected light detected according to the first optical power detector adjusts the position of input optical fibre by the first regulating platform, so that input optical fibre is in the optimum position coupled with input waveguide coupler, including：
The position of input optical fibre is adjusted by the first regulating platform, the luminous power of the reflected light of the first optical power detector detection is reached maximum and sensitive to the change in location of input optical fibre.
With reference to the first possible implementation of second aspect or second aspect, in second of possible implementation, the system also includes output optical fibre, the second regulating platform and the second optical power detector；
This method also includes：
The transmitted light exported from the output optical waveguide coupler of piece glazing device is transferred to by the second optical power detector by output optical fibre；
The luminous power of the transmitted light exported from output optical fibre is detected by the second optical power detector；
The luminous power of the transmitted light detected according to the second optical power detector, the position of output optical fibre is adjusted by the second regulating platform, so that output optical fibre is in the optimum position coupled with output optical waveguide coupler.
With reference to second of possible implementation of second aspect, in the third possible implementation, the luminous power of the transmitted light detected according to the second optical power detector, the position of output optical fibre is adjusted by the second regulating platform, so that output optical fibre is in the optimum position coupled with output optical waveguide coupler, including：
The position of output optical fibre is adjusted by the second regulating platform, the luminous power of the transmitted light of the second optical power detector detection is reached maximum and sensitive to the change in location of output optical fibre.
With reference to the second of second aspect or three kind of possible implementation, in the 4th kind of possible implementation, the system also includes controller；
The luminous power of the reflected light detected according to the first optical power detector, the position of input optical fibre is adjusted by the first regulating platform, so that input optical fibre is in the optimum position coupled with input waveguide coupler, including：
The luminous power for the reflected light that controller is detected according to the first optical power detector, the first regulating platform of control adjusts the position of input optical fibre, so that input optical fibre is in the optimum position coupled with input waveguide coupler；
The luminous power of the transmitted light detected according to the second optical power detector, the position of output optical fibre is adjusted by the second regulating platform, so that output optical fibre is in the optimum position coupled with output optical waveguide coupler, including：
The luminous power for the transmitted light that controller is detected according to the second optical power detector, the second regulating platform of control adjusts the position of output optical fibre, so that output optical fibre is in the optimum position coupled with output optical waveguide coupler.
Any of first to fourth kind of possible implementation with reference to second aspect or second aspect possible implementation, in the 5th kind of possible implementation, the system also includes light source selection device；
Before the first incident light inputted from the first input port of photo-coupler is transferred into input optical fibre from the output port of photo-coupler by photo-coupler, this method also includes：
Selected by light source selection device it will be seen that the second incident light of light source is input to the first input port of photo-coupler；
Second incident light is transferred to by input optical fibre from the output port of photo-coupler by photo-coupler；
The position of input optical fibre is adjusted by the first regulating platform, so that input optical fibre is by the second incident light transmission to input waveguide coupler；
First incident light of communication band light source is input to by photo-coupler by light source selection device selection
First input port.
With reference to the 5th kind of possible implementation of second aspect, in the 6th kind of possible implementation, optical routing device is photoswitch or photo-coupler.
Based on above-mentioned technical proposal, the system and method for the fiber coupling of the embodiment of the present invention, the reflection light output returned from input waveguide coupler reflectivity is used for by optical power detecting by photo-coupler, the position of the optical power adjustment input optical fibre for the reflected light that first regulating platform is detected according to optical power detector, the coupling of input can be reached independent of the coupling of output end, coupling difficulty is reduced, coupling time is shortened, so as to improve the efficiency of fiber coupling.
Technical scheme in order to illustrate the embodiments of the present invention more clearly, the required accompanying drawing used in the embodiment of the present invention will be briefly described below, apparently, drawings in the following description are only some embodiments of the present invention, for those of ordinary skill in the art, on the premise of not paying creative work, other accompanying drawings can also be obtained according to these accompanying drawings.
Fig. 1 is the schematic diagram of the system of the fiber coupling of one embodiment of the invention.
Fig. 2 is the schematic diagram of the system of the fiber coupling of another embodiment of the present invention.
Fig. 3 is the schematic diagram in the coupling section of the optical waveguide coupler of the embodiment of the present invention.
Fig. 4 is the fiber position of the embodiment of the present invention and the relation curve of luminous power.
Fig. 5 is the schematic diagram of the system of the fiber coupling of further embodiment of this invention.
Fig. 6 is the schematic diagram of the system of the fiber coupling of further embodiment of this invention.
Fig. 7 is the indicative flowchart of the method for the fiber coupling of one embodiment of the invention.
Fig. 8 is the indicative flowchart of the method for the fiber coupling of another embodiment of the present invention.
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is clearly and completely described, it is clear that described embodiment is a part of embodiment of the present invention, rather than whole embodiments.Based on the embodiment in the present invention, the every other embodiment that those of ordinary skill in the art are obtained on the premise of creative work is not made should all belong to the scope of protection of the invention.
Fig. 1 shows the schematic diagram of the system 100 of fiber coupling according to embodiments of the present invention.
As shown in figure 1, system 100 includes：Photo-coupler 110, the first optical power detector 120, the regulating platform 140 of input optical fibre 130 and first.
Photo-coupler 110 includes first input port 111, the second input port 112 and output port 113.That is, photo-coupler 110 has two input ports and an output port.First input port 111 can be connected with light source, the incident light for inputting light source.Second input port 112 is connected with the first optical power detector 120.Output port 113 is connected with input optical fibre 130.
Photo-coupler 110 is used to the incident light inputted from first input port 111 being transferred to input optical fibre 130 from output port 113.That is, the incident light of light source is inputted from the first input port 111 of photo-coupler 110, input optical fibre 130 is output to from the output port 113 of photo-coupler 110.
Input optical fibre 130 is used to couple with the input waveguide coupler of piece glazing device, by incident light transmission to input waveguide coupler, and by the reflected light pass returned from input waveguide coupler reflectivity to output port 113.
When incident light is got on input waveguide coupler, reflected light can be produced, the size of reflected optical power is related to the coupling position of input waveguide coupler with input optical fibre 130.Reflected light is transferred to the output port 113 of photo-coupler 110 by input optical fibre 130.
Photo-coupler 110 is additionally operable to export the reflected light inputted from output port 113 from the input port 112 of first input port 111 and second.Exported after the two-way optical coupling that photo-coupler 110 will can be inputted from the input port 112 of first input port 111 and second from output port 113.According to reversibility of optical path principle, photo-coupler 110 can export the reflected light inputted from output port 113 from the input port 112 of first input port 111 and second.The reflected light exported from first input port 111 can be isolated, and the reflected light exported from the second input port 112 can be for detection of optical power.
First optical power detector 120 is used for the luminous power for detecting the reflected light exported from the second input port 112.First optical power detector 120 is connected with the second input port 112 of photo-coupler 110, for example, can be connected by optical fiber.First optical power detector can detect the luminous power of the reflected light exported from the second input port 112.First optical power detector 120 detection reflected light luminous power can as adjust input optical fibre 130 position foundation.
First regulating platform 140 is used for the luminous power of the reflected light detected according to the first optical power detector 120, adjusts the position of input optical fibre 130, so that input optical fibre 130 is in the optimum position coupled with input waveguide coupler.
First regulating platform 140 can adjust the position of input optical fibre 130.For example, input optical fibre 130 can be fixed on the first regulating platform 140, the first regulating platform 140 can be multidimensional regulating platform, and the dimension of the first regulating platform 140 can be 2,3,4,5 or 6 etc..
In embodiments of the present invention, the luminous power of the reflected light detected according to the first optical power detector 120,
Adjust the position of input optical fibre 130.The luminous power of the reflected light of first optical power detector 120 detection is big to represent that coupling position is good.
Alternatively, the first regulating platform 140 makes the luminous power of the reflected light of the first optical power detector 120 detection reach maximum and sensitive to the change in location of input optical fibre 130 specifically for the position of regulation input optical fibre 130.That is, input optical fibre 130 meets following condition with the optimum position that input waveguide coupler is coupled：
1st, the luminous power of reflected light reaches maximum；
2nd, the luminous power of reflected light is sensitive to the change in location of input optical fibre 130.For example, several um, more than the optical power down 3dB of reflected light are deviateed in position.
According to the position of the optical power adjustment input optical fibre of reflected light, the coupling of input can be reached independent of the coupling of output end, coupling difficulty is reduced, shortens coupling time.
Therefore, the system of the fiber coupling of the embodiment of the present invention, the reflection light output returned from input waveguide coupler reflectivity is used for by optical power detecting by photo-coupler, the position of the optical power adjustment input optical fibre for the reflected light that first regulating platform is detected according to optical power detector, the coupling of input can be reached independent of the coupling of output end, coupling difficulty is reduced, coupling time is shortened, so as to improve the efficiency of fiber coupling.
Alternatively, in another embodiment, systems 100 as shown in Figure 2 also include：
Output optical fibre 150, the second regulating platform 160 and the second optical power detector 170.
Output optical fibre 150 is used to couple with the output optical waveguide coupler of piece glazing device, and the transmitted light exported from output optical waveguide coupler is transferred into the second optical power detector 170.
Second optical power detector 170 is used for the luminous power for detecting the transmitted light exported from output optical fibre 150.
Second regulating platform 160 is used for the luminous power of the transmitted light detected according to the second optical power detector 170, adjusts the position of output optical fibre 150, so that output optical fibre 150 is in the optimum position coupled with output optical waveguide coupler.
Second regulating platform 160 can adjust the position of output optical fibre 150.For example, output optical fibre 150 can be fixed on the second regulating platform 160, the second regulating platform 160 can be multidimensional regulating platform, and the dimension of the second regulating platform 160 can be 2,3,4,5 or 6 etc..
In embodiments of the present invention, the luminous power for the transmitted light that the position of output optical fibre 150 is detected according further to the second optical power detector 170 is adjusted.The luminous power of the transmitted light of second optical power detector 170 detection is big to represent that coupling position is good.
Alternatively, the second regulating platform 160 makes the luminous power of the transmitted light of the second optical power detector 170 detection reach maximum and sensitive to the change in location of output optical fibre 150 specifically for the position of regulation output optical fibre 150.
In embodiments of the present invention, alternatively, after respectively according to the position of the complete input optical fibre 130 of optical power adjustment of the luminous power of reflected light and transmitted light and output optical fibre 150, the position of input optical fibre 130 and output optical fibre 150 can also be finely adjusted again.The luminous power of the transmitted light detected using the second optical power detector 170 is finely tuned as foundation, so that the luminous power of transmitted light reaches maximum.
Specifically, fine setting can be followed the steps below：
1st, keep the current location of output optical fibre 150 motionless, adjust the position of input optical fibre 130, judge whether the luminous power of the transmitted light of the second optical power detector 170 detection reaches higher maximum, if higher maximum can not be reached, input optical fibre 130 is then returned into original position, coupling terminates, if reaching higher maximum, carries out step 2；
2nd, keep the current location of input optical fibre 130 motionless, adjust the position of output optical fibre 150, judge whether the luminous power of the transmitted light of the second optical power detector 170 detection reaches higher maximum, if higher maximum can not be reached, output optical fibre 150 is then returned into original position, coupling terminates, if reaching higher maximum, carries out step 1.
Fig. 3 shows the schematic diagram in the coupling section of optical waveguide coupler.In Fig. 3, light is propagated along X-axis.Fiber position can be adjusted in X, Y and Z all directions.
Fig. 4 shows the relation curve of fiber position and luminous power.Figure 4, it is seen that the direction that either vertical light is propagated, or the direction propagated along light, the change of reflected light and the luminous power of transmitted light is consistent.That is, by the use of the luminous power of reflected light as regulation foundation, with the luminous power by the use of transmitted light as regulation foundation, obtained Best Coupling position is consistent.Therefore, the luminous power provided in an embodiment of the present invention using reflected light judges whether input optical fibre reaches that the condition of Best Coupling position is feasible.
It should be understood that the optical waveguide coupler in the embodiment of the present invention both can be side coupler or grating coupler, the embodiment of the present invention is not limited this.
Alternatively, in another embodiment, systems 100 as shown in Figure 5 also include：
Controller 180, for the luminous power of the reflected light detected according to the first optical power detector 120, the first regulating platform 140 of control adjusts the position of input optical fibre 130, so that input optical fibre 130 is in the optimum position coupled with input waveguide coupler；The luminous power of the transmitted light detected according to the second optical power detector 170, the second regulating platform 160 of control adjusts the position of output optical fibre 150, so that output optical fibre 150
In the optimum position coupled with output optical waveguide coupler.
Controller 180 is connected with the first optical power detector 120, the first regulating platform 140, the second regulating platform 160, the second optical power detector 170.Platform is controlled to adjust by controller 180 and carries out position adjustment, by closed loop feedback Automatic-searching optimum position luminous power can be made to reach maximum.Controller 180 is when controlling the first regulating platform 140, the numerical value (luminous power of reflected light) of the first optical power detector 120 can be selected as the standard of closed loop feedback, the numerical value (luminous power of transmitted light) of the second optical power detector 170 can also be selected as closed loop feedback standard；When controller controls the second regulating platform 160, the numerical value (luminous power of transmitted light) of the second optical power detector 170 can only be selected as closed loop feedback standard.
Alternatively, in another embodiment, systems 100 as shown in Figure 6 also include：
Light source selection device 190, for selecting it will be seen that the incident light of light source or communication band light source is input to first input port 111.
When the incident light of communication band light source is black light, the coarse adjustment of fiber position is not easy to.In the present embodiment, before first input port 111, a light source selection device 190 is added.Optical routing device 190 can be photoswitch or photo-coupler.Light source selection device 190 can be selected it will be seen that the incident light of light source or communication band light source is input to first input port 111.
When being adjusted in the position to input optical fibre 130, light source selection device 190 can first select the incident light of visible light source.Spot location by making visible ray completes coarse adjustment at input waveguide coupler.Then, the incident light of the reselection communication band light source of light source selection device 190, in the way of in previous embodiment, completes fiber coupling.Using the indicative function of visible ray, the time needed for whole flow process can be shortened.
The system of the fiber coupling of the embodiment of the present invention, input and output end are decoupled, coupling difficulty is reduced, shortens coupling time, and simple in construction, and fringe cost is low.
The system of fiber coupling according to embodiments of the present invention described in detail above, the method that fiber coupling according to embodiments of the present invention is described below.
Fig. 7 shows the indicative flowchart of the method 700 of fiber coupling according to embodiments of the present invention.This method 700 is used for the system 100 of foregoing fiber coupling according to embodiments of the present invention.This method 700 includes：
S710, input optical fibre is transferred to by photo-coupler by the first incident light inputted from the first input port of photo-coupler from the output port of photo-coupler；
S720, by input optical fibre by the input waveguide coupler of the first incident light transmission to piece glazing device, and by the output end of the reflected light pass returned from input waveguide coupler reflectivity to photo-coupler
Mouthful；
S730, is exported the reflected light inputted from the output port of photo-coupler from the first input port of photo-coupler and the second input port by photo-coupler；
S740, the luminous power of the reflected light exported from the second input port of photo-coupler is detected by the first optical power detector；
S750, the luminous power of the reflected light detected according to the first optical power detector adjusts the position of input optical fibre by the first regulating platform, so that input optical fibre is in the optimum position coupled with input waveguide coupler.
The method of the fiber coupling of the embodiment of the present invention, the reflection light output returned from input waveguide coupler reflectivity is used for by optical power detecting by photo-coupler, the position of the optical power adjustment input optical fibre of the reflected light detected according to optical power detector, the coupling of input can be reached independent of the coupling of output end, reduce coupling difficulty, coupling time is shortened, so as to improve the efficiency of fiber coupling.
In an embodiment of the invention, alternatively, the luminous power of the reflected light detected according to the first optical power detector, the position of input optical fibre is adjusted by the first regulating platform, so that input optical fibre is in the optimum position coupled with input waveguide coupler, including：
The position of input optical fibre is adjusted by the first regulating platform, the luminous power of the reflected light of the first optical power detector detection is reached maximum and sensitive to the change in location of input optical fibre.
In another embodiment, alternatively, as shown in figure 8, this method 700 also includes：
S760, the second optical power detector is transferred to by output optical fibre by the transmitted light exported from the output optical waveguide coupler of piece glazing device；
S770, the luminous power of the transmitted light exported from output optical fibre is detected by the second optical power detector；
S780, the luminous power of the transmitted light detected according to the second optical power detector adjusts the position of output optical fibre by the second regulating platform, so that output optical fibre is in the optimum position coupled with output optical waveguide coupler.
In another embodiment, alternatively, the luminous power of the transmitted light detected according to the second optical power detector, the position of output optical fibre is adjusted by the second regulating platform, so that output optical fibre is in the optimum position coupled with output optical waveguide coupler, including：
The position of output optical fibre is adjusted by the second regulating platform, the luminous power of the transmitted light of the second optical power detector detection is reached maximum and sensitive to the change in location of output optical fibre.
In another embodiment, alternatively, according to the first optical power detector detect reflected light luminous power, by the first regulating platform adjust input optical fibre position so that input optical fibre be in it is defeated
Enter the optimum position of optical waveguide coupler coupling, including：
The luminous power for the reflected light that controller is detected according to the first optical power detector, the first regulating platform of control adjusts the position of input optical fibre, so that input optical fibre is in the optimum position coupled with input waveguide coupler；
The luminous power of the transmitted light detected according to the second optical power detector, the position of output optical fibre is adjusted by the second regulating platform, so that output optical fibre is in the optimum position coupled with output optical waveguide coupler, including：
The luminous power for the transmitted light that controller is detected according to the second optical power detector, the second regulating platform of control adjusts the position of output optical fibre, so that output optical fibre is in the optimum position coupled with output optical waveguide coupler.
In another embodiment, alternatively, before the first incident light inputted from the first input port of photo-coupler is transferred into input optical fibre from the output port of photo-coupler by photo-coupler, this method 700 also includes：
Selected by light source selection device it will be seen that the second incident light of light source is input to the first input port of photo-coupler；
Second incident light is transferred to by input optical fibre from the output port of photo-coupler by photo-coupler；
The position of input optical fibre is adjusted by the first regulating platform, so that input optical fibre is by the second incident light transmission to input waveguide coupler；
Select to be input to the first incident light of communication band light source into the first input port of photo-coupler by light source selection device.
In another embodiment, alternatively, optical routing device is photoswitch or photo-coupler.
The corresponding flow of the method 700 of the fiber coupling of the embodiment of the present invention can be performed by each device in the system 100 of the fiber coupling of the foregoing embodiment of the present invention respectively, for sake of simplicity, will not be repeated here.
The method of the fiber coupling of the embodiment of the present invention, input and output end are decoupled, coupling difficulty is reduced, shortens coupling time, so as to improve the efficiency of fiber coupling.
It should be understood that the specific example in the present invention is intended merely to help those skilled in the art to more fully understand the embodiment of the present invention, the scope for the embodiment that is not intended to limit the present invention.
It will also be understood that, in various embodiments of the present invention, the size of the sequence number of above-mentioned each process is not meant to the priority of execution sequence, and the execution sequence of each process should be determined with its function and internal logic, and any limit is constituted without tackling the implementation process of the embodiment of the present invention.
Those of ordinary skill in the art can be appreciated that, the unit and algorithm steps of each example described with reference to the embodiments described herein, it can be realized with electronic hardware, computer software or the combination of the two, in order to clearly demonstrate the interchangeability of hardware and software, the composition and step of each example are generally described according to function in the above description.These functions are performed with hardware or software mode actually, depending on the application-specific and design constraint of technical scheme.Professional and technical personnel can realize described function to each specific application using distinct methods, but this realization is it is not considered that beyond the scope of this invention.
It is apparent to those skilled in the art that, for convenience of description and succinctly, the idiographic flow of the method for foregoing description may be referred to the corresponding description in aforementioned system embodiment, will not be repeated here.
In several embodiments provided herein, it should be understood that disclosed system, system and method, it can realize by another way.For example, system embodiment described above is only schematical, for example, the division of the unit, it is only a kind of division of logic function, there can be other dividing mode when actually realizing, such as multiple units or component can combine or be desirably integrated into another system, or some features can be ignored, or do not perform.In addition, shown or discussed coupling or direct-coupling or communication connection each other can be by the INDIRECT COUPLING of some interfaces, system or unit or communication connection or electricity, mechanical or other forms are connected.
The unit illustrated as separating component can be or may not be physically separate, and the part shown as unit can be or may not be physical location, you can with positioned at a place, or can also be distributed on multiple NEs.Some or all of unit therein can be selected to realize the purpose of scheme of the embodiment of the present invention according to the actual needs.
In addition, each functional unit in each embodiment of the invention can be integrated in a processing unit or unit is individually physically present or two or more units are integrated in a unit.Above-mentioned integrated unit can both be realized in the form of hardware, it would however also be possible to employ the form of SFU software functional unit is realized.
If the integrated unit is realized using in the form of SFU software functional unit and as independent production marketing or in use, can be stored in a computer read/write memory medium.Understood based on such, the part that technical scheme substantially contributes to prior art in other words, or all or part of the technical scheme can be embodied in the form of software product, the computer software product is stored in a storage medium, including some instructions to cause a computer equipment (can be personal computer, server, or the network equipment etc.) perform whole or the portion of each embodiment methods described of the invention
Step by step.And foregoing storage medium includes：USB flash disk, mobile hard disk, read-only storage (ROM, Read-Only Memory), random access memory (RAM, Random Access Memory), magnetic disc or CD etc. are various can be with the medium of store program codes.
It is described above; only embodiment of the invention; but protection scope of the present invention is not limited thereto; any one skilled in the art the invention discloses technical scope in; various equivalent modifications or substitutions can be readily occurred in, these modifications or substitutions should be all included within the scope of the present invention.Therefore, protection scope of the present invention should be defined by scope of the claims.
Claims (14)
- A kind of system of fiber coupling, it is characterised in that including：Photo-coupler (110), the first optical power detector (120), input optical fibre (130) and the first regulating platform (140)；The photo-coupler (110) includes first input port (111), the second input port (112) and output port (113), and the photo-coupler (110) is used to the incident light inputted from the first input port (111) being transferred to the input optical fibre (130) from the output port (113)；The input optical fibre (130) is used to couple with the input waveguide coupler of piece glazing device, by the incident light transmission to the input waveguide coupler, and by the reflected light pass returned from the input waveguide coupler reflectivity to the output port (113)；The reflected light that the photo-coupler (110) is additionally operable to input from the output port (113) is exported from the first input port (111) and second input port (112)；First optical power detector (120) is used for the luminous power for detecting the reflected light exported from second input port (112)；First regulating platform (140) is used for the luminous power of the reflected light detected according to first optical power detector (120), adjusts the position of the input optical fibre (130).
- System according to claim 1, it is characterized in that, first regulating platform (140) makes the luminous power of the reflected light of the first optical power detector (120) detection reach maximum and sensitive to the change in location of the input optical fibre (130) specifically for the position of the regulation input optical fibre (130).
- System according to claim 1 or 2, it is characterised in that the system also includes：Output optical fibre (150), the second regulating platform (160) and the second optical power detector (170)；The output optical fibre (150) is used to couple with the output optical waveguide coupler of described glazing device, and the transmitted light exported from the output optical waveguide coupler is transferred into second optical power detector (170)；Second optical power detector (170) is used for the luminous power for detecting the transmitted light exported from the output optical fibre (150)；Second regulating platform (160) is used for the luminous power of the transmitted light detected according to second optical power detector (170), adjusts the position of the output optical fibre (150).
- System according to claim 3, it is characterised in that second regulating platform (160) makes second optical power detector (170) specifically for the position of the regulation output optical fibre (150) The luminous power of the transmitted light of detection reaches maximum and sensitive to the change in location of the output optical fibre (150).
- System according to claim 3 or 4, it is characterised in that the system also includes：Controller (180), for the luminous power of the reflected light detected according to first optical power detector (120), controls first regulating platform (140) to adjust the position of the input optical fibre (130)；The luminous power of the transmitted light detected according to second optical power detector (170), controls second regulating platform (160) to adjust the position of the output optical fibre (150).
- System according to any one of claim 1 to 5, it is characterised in that the system also includes：Light source selection device (190), for selecting it will be seen that the incident light of light source or communication band light source is input to the first input port (111).
- System according to claim 6, it is characterised in that the optical routing device (190) is photoswitch or photo-coupler.
- A kind of method of fiber coupling, it is characterized in that, the system that methods described is used for fiber coupling, the system includes photo-coupler, the first optical power detector, input optical fibre and the first regulating platform, and the photo-coupler includes first input port, the second input port and output port；Methods described includes：The output port of the first incident light from the photo-coupler that are inputted from the first input port of the photo-coupler is transferred to by the input optical fibre by the photo-coupler；By the input optical fibre by the input waveguide coupler of first incident light transmission to piece glazing device, and by the output port of the reflected light pass returned from the input waveguide coupler reflectivity to the photo-coupler；The reflected light inputted from the output port of the photo-coupler is exported from the first input port of the photo-coupler and the second input port by the photo-coupler；The luminous power of the reflected light exported from the second input port of the photo-coupler is detected by first optical power detector；The luminous power of the reflected light detected according to first optical power detector, the position of the input optical fibre is adjusted by first regulating platform, so that the input optical fibre is in the optimum position coupled with the input waveguide coupler.
- Method according to claim 8, it is characterised in that the luminous power of the reflected light detected according to first optical power detector, the input light is adjusted by first regulating platform Fine position, so that the input optical fibre is in the optimum position coupled with the input waveguide coupler, including：The position of the input optical fibre is adjusted by first regulating platform, the luminous power of the reflected light of the first optical power detector detection is reached maximum and sensitive to the change in location of the input optical fibre.
- Method according to claim 8 or claim 9, it is characterised in that the system also includes output optical fibre, the second regulating platform and the second optical power detector；Methods described also includes：The transmitted light exported from the output optical waveguide coupler of described glazing device is transferred to by second optical power detector by the output optical fibre；The luminous power of the transmitted light exported from the output optical fibre is detected by the second optical power detector；The luminous power of the transmitted light detected according to second optical power detector, the position of the output optical fibre is adjusted by second regulating platform, so that the output optical fibre is in the optimum position coupled with the output optical waveguide coupler.
- Method according to claim 10, it is characterized in that, the luminous power of the transmitted light detected according to second optical power detector, the position of the output optical fibre is adjusted by second regulating platform, so that the output optical fibre is in the optimum position coupled with the output optical waveguide coupler, including：The position of the output optical fibre is adjusted by second regulating platform, the luminous power of the transmitted light of the second optical power detector detection is reached maximum and sensitive to the change in location of the output optical fibre.
- Method according to claim 10 or 11, it is characterised in that the system also includes controller；The luminous power of the reflected light detected according to first optical power detector, the position of the input optical fibre is adjusted by first regulating platform, so that the input optical fibre is in the optimum position coupled with the input waveguide coupler, including：The luminous power for the reflected light that the controller is detected according to first optical power detector, controls first regulating platform to adjust the position of the input optical fibre, so that the input optical fibre is in the optimum position coupled with the input waveguide coupler；The luminous power of the transmitted light detected according to second optical power detector, by described Second regulating platform adjusts the position of the output optical fibre, so that the output optical fibre is in the optimum position coupled with the output optical waveguide coupler, including：The luminous power for the transmitted light that the controller is detected according to second optical power detector, controls second regulating platform to adjust the position of the output optical fibre, so that the output optical fibre is in the optimum position coupled with the output optical waveguide coupler.
- Method according to any one of claim 8 to 12, it is characterised in that the system also includes light source selection device；It is described the output port of the first incident light from the photo-coupler that are inputted from the first input port of the photo-coupler is transferred to by the input optical fibre by the photo-coupler before, methods described also includes：Selected by light source selection device it will be seen that the second incident light of light source is input to the first input port of the photo-coupler；The output port of second incident light from the photo-coupler is transferred to by the input optical fibre by the photo-coupler；The position of the input optical fibre is adjusted by first regulating platform, so that the input optical fibre is by second incident light transmission to the input waveguide coupler；Select to be input to first incident light of communication band light source into the first input port of the photo-coupler by the light source selection device.
- Method according to claim 13, it is characterised in that the optical routing device is photoswitch or photo-coupler.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/CN2014/087757 WO2016049798A1 (en) | 2014-09-29 | 2014-09-29 | Optical fiber coupling system and method |
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| CN106575999A true CN106575999A (en) | 2017-04-19 |
| CN106575999B CN106575999B (en) | 2019-06-11 |
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| CN201480081173.9A Active CN106575999B (en) | 2014-09-29 | 2014-09-29 | The system and method for fiber coupling |
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| WO (1) | WO2016049798A1 (en) |
Cited By (2)
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| CN112859249A (en) * | 2021-01-21 | 2021-05-28 | 深圳市易捷通光电技术有限公司 | Optical fiber coupling using device and using method thereof |
| CN112904501A (en) * | 2021-03-26 | 2021-06-04 | 武汉华工正源光子技术有限公司 | Test structure and coupling system for optical fiber and optical chip angle alignment |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112909732A (en) * | 2021-05-07 | 2021-06-04 | 中国科学院西安光学精密机械研究所 | Laser and PLC coupling alignment system and alignment method |
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| CN106575999B (en) | 2019-06-11 |
| WO2016049798A1 (en) | 2016-04-07 |
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