CN106990541A - Optical multiplexer - Google Patents
Optical multiplexer Download PDFInfo
- Publication number
- CN106990541A CN106990541A CN201710043654.6A CN201710043654A CN106990541A CN 106990541 A CN106990541 A CN 106990541A CN 201710043654 A CN201710043654 A CN 201710043654A CN 106990541 A CN106990541 A CN 106990541A
- Authority
- CN
- China
- Prior art keywords
- waveguide
- fiber waveguide
- bending section
- light
- bullet
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
- G02B27/10—Beam splitting or combining systems
- G02B27/1006—Beam splitting or combining systems for splitting or combining different wavelengths
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Optical Couplings Of Light Guides (AREA)
- Optical Integrated Circuits (AREA)
Abstract
The present invention is provided can carry out the optical multiplexer of multiplex to the light of multiple wavelength with simple structure and low-loss.The optical multiplexer includes：Make the respective incident entrance port of light of the laser diode of the wavelength from two or more specified quantity；The single exit wound of bullet for projecting the incident light of the entrance port from specified quantity；The fiber waveguide (G1~G4) of the specified quantity of incident light is guided respectively；And be connected and guide incident light to the fiber waveguide (Gs) of exit wound of bullet with fiber waveguide (G1~G4).Fiber waveguide (G1~G4) is respectively set to the polyline shaped with the bending section for reflecting incident light, fiber waveguide (Gs) is set to polyline shaped or linear, in the coupling part of fiber waveguide (Gs) and each fiber waveguide (G1~G4), fiber waveguide (G1~G4) is respectively connected with the defined angular range from the bearing of trend of fiber waveguide (Gs), so as to carry out multiplex to the incident light of the entrance port from specified quantity.
Description
Technical field
The present invention relates to the optical multiplexer that the light to multiple wavelength carries out multiplex.
Background technology
In the past, there are the various devices of the laser using multiple wavelength：Such as project the assorted laser displays of RGB colored
The projection arrangement of image and the diagnostic device that is sensed with visible ray and infrared ray (IR light) etc..In these devices, lead to
Often the laser of multiple wavelength is projected respectively from the LASER Light Source for the light for producing each wavelength, will using optical multiplexer (wave multiplexer)
Laser composite wave is exported into Ray Of Light.
It is used as wave multiplexer, it is known that, for example：Using fiber waveguide (light pipe) carry out light input and output, only reflection and
The light of corresponding wavelength and multiple wave filters (dichroic filter) for passing through the light of other wavelength are arranged on incident light respectively
Export on ray, the light of each corresponding wavelength is incident to each dichroic filter (for example, patent document 1,2).
Prior art literature
Patent document
[patent document 1] JP 2007-164109 publications
[patent document 2] JP 2006-003673 publications
The content of the invention
The technical problems to be solved by the invention
But, above-mentioned wave filter is such as used, then can not ignore energy loss during through wave filter.Also, since it is desired that
The transmitance of the reflectivity of the light of desired wavelength and the light of other wavelength is taken into account, there is the dimension enlargement and cost of wave filter
The problem of raising.
It can low-loss carry out it is an object of the invention to provide simple structure and to multiple wavelength light the light of multiplex
Composite wave appts.
Solve the technical scheme that technical problem is used
In order to reach above-mentioned purpose, optical multiplexer of the invention, it is characterised in that including：
For the respective incident entrance port of light of the wavelength of 2 quantity defined above；
The single exit wound of bullet that the incident light of entrance port from above-mentioned specified quantity is projected；
Above-mentioned incident light is guided to the fiber waveguide of exit wound of bullet.
Above-mentioned fiber waveguide includes：The independent wave guide of above-mentioned specified quantity, its one end is above-mentioned entrance port, each guides above-mentioned respectively
Incident light；And single interflow waveguide, the other end opposite with above-mentioned one end of the independent wave guide is each connected, by above-mentioned independence
Waveguide the light of each bootstrap guide to above-mentioned exit wound of bullet.
The independent wave guide of above-mentioned specified quantity is each configured to the polyline shaped with the bending section reflected incident light.
Above-mentioned interflow waveguide is arranged to above-mentioned polyline shaped or linear, the respective company of the interflow waveguide and above-mentioned independent wave guide
In socket part point, the independent wave guide of above-mentioned specified quantity is divided in the defined angular range from the bearing of trend of above-mentioned interflow waveguide
Do not connect, so as to carrying out multiplex from the incident light in the entrance port of above-mentioned specified quantity.
Invention effect
According to the present invention, can reach the light of multiple wavelength is simply formed and low-loss carry out the effect of multiplex.
Brief description of the drawings
Fig. 1 is the stereogram for the outward appearance for representing wave multiplexer.
Fig. 2 is the schematic diagram for the structure for representing fiber waveguide.
Fig. 3 is the figure for illustrating the reflecting surface in fiber waveguide.
Fig. 4 is the stereogram for the variation for representing wave multiplexer.
Fig. 5 is the schematic diagram of the variation for the structure for representing fiber waveguide.
Fig. 6 is the schematic diagram of the variation for the structure for representing fiber waveguide.
Embodiment
Hereinafter, embodiments of the present invention are illustrated with reference to the accompanying drawings.
Fig. 1 is the integrally-built outside drawing of the wave multiplexer 1 for the embodiment for representing the optical multiplexer of the present invention.
Wave multiplexer 1 is not particularly limited, generally the shell mechanism of rectangular shape.(it is herein one along the side on long side
Plane in individual YZ faces；Plane of incidence E) a straight line on multiple (specified quantities of more than 2) are set, be 4 incidences herein
Mouth E1~E4 is set in a straight line, along on the side (in XZ faces) of short side, face (outgoing plane A) i.e. orthogonal with plane of incidence E
Single exit wound of bullet A1 is set.That is, entrance port E1~E4 is respectively disposed at the side orthogonal with outgoing plane A since outgoing plane A
The position of (different at least 2) different from each other on to (along the direction of Y-axis).The length on the long side of shell mechanism is (along Y direction
Length) it is defined as the interval that can be arranged from the light source (LASER Light Source) of laser incident each entrance port E1~E4, herein, according to
The size of laser diode (LD) is the interval that 4 LASER Light Sources (LD) can arrange.
Fig. 2 is the schematic diagram for illustrating the fiber waveguide inside the wave multiplexer 1 of present embodiment.Plane shown by the schematic diagram
Be each entrance port E1 in the section to be cut with the orthogonal face (XY faces) in height (Z axis) direction, the wave multiplexer 1 comprising Fig. 1~
E4 and exit wound of bullet A1.Herein, the feature for the configuration for representing fiber waveguide is exaggerated in explanation.
Entrance port E1~E4 turns into each the independent fiber waveguide G1 of 4~G4 (independent wave guide) one end, and these are multiple
Neighbouring interflow (connected) of the fiber waveguide G1~G4 in fiber waveguide Gs (interflow waveguide) one end of exit wound of bullet A1 anterior locations.Light wave
The above-mentioned adjacent one end for leading Gs is wider, centre be formed as along the size in X-direction (X-direction) taper section constantly reduce it is straight
Wire, the other end with one end opposite side is exit wound of bullet A1.Fiber waveguide G1~G4 is in polyline shaped, from entrance port E1~E4
After the respective different distance set to fiber waveguide G11, G21, G31, G41 (upstream waveguide) of advancing to X-direction, substantially to along Y
The direction (Y-direction) of axle is bent once, so that as fiber waveguide G12, G22, G32, G42 (downstream waveguide) relative to fiber waveguide
Fiber waveguide Gs adjacent one end is connected in the defined angular range of Gs bearing of trend, i.e. outgoing plane A normal direction.
As fiber waveguide, if can low-loss transmission ray (be herein single transverse mode (Single Transverse
Mode；STM)), it is not particularly limited, for example, selecting hollow light guiding pipe and with PLC of the glass material (silicon) for medium
(Planar Lightwave Circuit：Planar lightwave circuit) etc..For example with known semiconductor fabrication process in silicon substrate
Upper formation structure.Particularly, by the way that entrance port E1~E4 and exit wound of bullet A1 are arranged in single plane, fiber waveguide G1~
G4, Gs can be formed in single layer.
Bending section G1r~the G4r being arranged on one by one respectively in fiber waveguide G1~G4 is configured to, incident from entrance port E1~E4
Laser be totally reflected to respectively by reflecting surface R1~R4 on exit wound of bullet A1 direction.Herein, for example set on reflecting surface R1~R4
Aluminium film etc. is equipped with as minute surface component.The wavelength and its order for inciding each entrance port E1~E4 laser are not particularly limited,
For example using the colors of RGB 3 and near infrared ray (NIR).
Angle of reflection (reflecting surface R1~R4 normal and reflected light angulation) in reflecting surface R1~R4 is defined as, from
Exit wound of bullet A1 to reflecting surface R1~R4 distance more low-angle is bigger, i.e. incident angle relative to outgoing plane A be (outgoing plane A's
Normal and incident light angulation) gradually expand.Fiber waveguide G1~G4 width (sectional dimension) and the length phase of Y direction
Than sufficiently small, the difference of the angle of reflection in reflecting surface R1~R4 is for example defined as 0.25~1.0 degree or so of minute angle (regulation
Differential seat angle).Therefore, in the part that fiber waveguide G12~G42 is connected with fiber waveguide Gs, relative to fiber waveguide Gs extension side
To, i.e. outgoing plane A normal direction 0.75~3.0 degree or so (regulation) angular range turn into different directions from each other.This
The configuration of sample, makes to incide the laser of fiber waveguide G1~G4 each wavelength and is directed to fiber waveguide with parallel angle close to each other
Gs, in fiber waveguide Gs after multiplex, is projected from exit wound of bullet A1.
Fig. 3 is the figure for illustrating the reflecting surface in fiber waveguide.Herein, for example, other reflections by taking reflecting surface R1 as an example
Face R2~R4 can also have same construction.
In fiber waveguide G1 bending section G1r, in order at least suppress the diverging in defined single shaft direction glazing, reflecting surface R1
In the face (XY face) parallel with drawing, i.e. the extension including above-mentioned single shaft direction (close to X-direction) and fiber waveguide G12
Slightly there is concave in the plane in direction (close to Y-direction).Generally, in order to prevent because laser does not incide entrance port E1
Loss, by laser with coupled lens carry out optically focused after be directed into entrance port E1.The incident light is dissipated while being directed
To reflecting surface R1, so reflecting surface R1 suppresses the diverging of reflected light, reflection is particularly incided with the prespecified angle of divergence
The reflected light of face R1 light is set to the almost parallel light for being emitted directly toward fiber waveguide Gs and then directive exit wound of bullet A1, so that
Order of reflection on fiber waveguide G1 side is reduced, and is ideally zero degree.Draw therefore, it is possible to reduce because of Laser Transmission
The loss risen.Herein, for example, making slow axis (slow axis) direction of the incident light from LASER Light Source consistent with Y direction,
On the slow-axis direction, by reflecting surface R1 laser reflection only once or close to the standard degree in fiber waveguide G1, this
Outside, the diffusivity in fast axle (fast axis) direction consistent with Z-direction, the reflection of the laser of fiber waveguide G1 inside are reduced
Number of times is reduced.
Fig. 4 is the figure for the variation for representing wave multiplexer 1.
As shown in Fig. 4 (a), entrance port E1~E8 is respectively set on 2 planes of incidence E, Ea orthogonal and mutually orthogonal with outgoing plane A
Put 4.The wave multiplexer 1 using similarly in shell about 90 degree of primary event independent wave guide, make come from be arranged on it is multiple enter
The light for the entrance port penetrated on face E, Ea is guided to exit wound of bullet A1 via single interflow waveguide.From the incidence being arranged on plane of incidence Ea
In about 90 degree of reflections after laser incident mouth E5~E8 enters in the negative direction (-Z direction) along Z axis, guiding to Y-direction.That is, exist
Set in YZ planes and the interior fiber waveguide identical structure to being guided from the incident light of entrance port E1~E4 of X/Y plane.
Now, all angles of reflection are set to be greater than 45 degree so that the position from entrance port E1, E5 to exit wound of bullet A1 fiber waveguide is (curved
Pars convoluta and the bending section are untill exit wound of bullet A1) it will not repeat.
In addition, as shown in Fig. 4 (b), the entrance port E1b~E4b being arranged on a plane of incidence E can not also be in a straight line
On.In this case, from entrance port E1b~E4b in the X direction into fiber waveguide G1~G4 laser in reflecting surface R1~R4 not
Only along with Y-direction component, also reflected along with Z-direction component, it is big as the single fiber waveguide connected with exit wound of bullet A1
Cause parallel light to be directed and multiplex, and projected from exit wound of bullet A1.
Fig. 5 and Fig. 6 are the schematic diagrames of the variation for the optical waveguide structure for representing wave multiplexer 1.
As shown in Fig. 5 (a), two faces that are orthogonal with outgoing plane A and being parallel to each other can be set to the plane of incidence E, Ec, and be set into
Loophole E1~E4, E1c~E3c.In this case, by fiber waveguide G1c~G3c be set in X/Y plane using fiber waveguide G12 as
Axle and fiber waveguide G2~G4 are symmetrical, are connected by fiber waveguide Gsc with single exit wound of bullet A1.I.e., whole fiber waveguide G1~G4,
G1c~G3c, Gsc can be formed in single X/Y plane.
Herein, entrance port E1c is arranged on the position relative with entrance port E2, by fiber waveguide G11c laser in bending
Reflected on portion G1rc by reflecting surface R1c to fiber waveguide G12c bearing of trend (for example, 45.5 degree of angle of reflection), so as to guide to light
Waveguide Gsc.Entrance port E2c is arranged on the position relative with entrance port E3, by fiber waveguide G21c laser in bending section
Reflected in G2rc by reflecting surface R2c to fiber waveguide G22c bearing of trend (for example, 46.0 degree of angle of reflection), so as to guide to light wave
Lead Gsc.Entrance port E3c is arranged on the position relative with entrance port E4, by fiber waveguide G31c laser in bending section G3rc
It is middle to be reflected by reflecting surface R3c to fiber waveguide G32c bearing of trend (for example, 46.5 degree of angle of reflection), so as to guide to fiber waveguide
Gsc。
In addition, from light incident plane of incidence E entrance port E1 on reflecting surface R1 with angle of reflection 45.0 degree reflect, in incidence
Be not provided with the Ec of face with the entrance port of the laser of 45.0 degree of angle of reflection reflection, but it is also possible to not shell either side set with
The entrance port of the laser of 45.0 degree of angle of reflection reflection, and being formed as example with minimal reflection angle 45.25 degree in both sides makes identical number
The entrance port of amount is incident.
In addition, as shown in Fig. 5 (b), 45 degree of type can also be less than comprising angle of reflection.
Herein, from entrance port E4 be incident to fiber waveguide G4d (G41d) laser in the G4rd of bending section by reflecting surface R4d to reflect
45.0 degree of angle is reflexed on fiber waveguide G42d bearing of trend, guiding to fiber waveguide Gsd.From entrance port, E3 is incident to fiber waveguide
After the distance that G3d (G31d) laser has advanced more than waveguide pipe G41d, by reflecting surface R3d with less than anti-in the G3rd of bending section
Penetrate face R4d angle of reflection, such as 44.5 degree reflex on fiber waveguide G32d bearing of trend, guiding is to fiber waveguide Gsd.From incidence
Mouth E2 is incident to after the distance that fiber waveguide G2d (G21d) laser has advanced more than waveguide pipe G31d, is passing through bending section G2rd
It is middle by reflecting surface R2d with the angle of reflection less than reflecting surface R3d, such as 44.0 degree reflex on fiber waveguide G22d bearing of trend,
Guide to fiber waveguide Gsd.In addition, having advanced from the entrance port E1 laser for being incident to fiber waveguide G1d (G11d) more than waveguide pipe
After G21d distance, in the G1rd of bending section by reflecting surface R1d with the angle of reflection less than reflecting surface R2d, such as 43.5 degree reflection
Onto fiber waveguide G12d bearing of trend, guiding to fiber waveguide Gsd.The laser of each wavelength in fiber waveguide Gsd by multiplex after, from
Exit wound of bullet A1 is projected.
In addition it is also possible to which as shown in fig. 6, the fiber waveguide Gse for setting midway to possess bending section Gsre is replaced shown in Fig. 2
Fiber waveguide Gs in the wave multiplexer 1 of embodiment, so that wave multiplexer 1e is from being arranged on the outgoing plane parallel with the plane of incidence E of laser
Exit wound of bullet A1e on Ae projects the laser with the incident direction equidirectional of laser.
As described above, the wave multiplexer 1 of present embodiment includes：The incidence for making the light difference of the LD from 4 wavelength incident
Mouth E1~E4；Make the single exit wound of bullet A1 projected from the incident light of 4 entrance port E1~E；The 4 of incident light is guided independently of one another
Individual fiber waveguide G1~G4；It is connected with fiber waveguide G1~G4, and above-mentioned fiber waveguide G1~G4 light guided is guided to exit wound of bullet
A1 fiber waveguide Gs.4 fiber waveguide G1~G4 are respectively set to possess the bending section G1r that incident light is reflected with reflecting surface R1~R4
~G4r polyline shaped, fiber waveguide Gs is set to polyline shaped or linear.In addition, closest in each fiber waveguide G1~G4 penetrate
Fiber waveguide G12~G42s (downstream waveguide) of the A1 reflecting surface R1~R4 untill exit wound of bullet A1 is exported in prolonging from fiber waveguide Gs
Stretch angular range as defined in direction to be connected with fiber waveguide Gs, therefore incide each fiber waveguide G1~G4 4 beam light in light wave
Lead in Gs by multiplex.
In this way, in each independent fiber waveguide G1~G4, with parallel angle close to each other by each wavelength in fiber waveguide Gs
Photosynthetic stream, and guide to exit wound of bullet A1, without the dichroic filter using the only light of reflection desirable wavelength, with multiplex
Related structure becomes simple, and is easy to miniaturization.In addition, because that need not consider that the absorption of dichroic filter is scattered, so
Energy loss (reduction of luminous intensity) can be reduced.In addition, fiber waveguide G1~G, Gs is formed as in addition to bending section G1r~G4r
Linearly, therefore compared with curve, order of reflection will not be made to increase to more than required, energy loss can be reduced.
In addition, 4 entrance port E1~E4 be arranged on at the diverse location on outgoing plane A orthogonal directions, in outgoing plane A
On be provided with exit wound of bullet A1.
For the LASER Light Source (laser diode) for making to project from laser incident entrance port E1~E4, due to projecting direction
Space is also required in vertical plane, so make incident bendingof light on the direction for arranging multiple LASER Light Sources, and in front of it
Outgoing plane A on set exit wound of bullet A1, so as to effectively produce arrangement LASER Light Source needed for length, can be by differential seat angle phase
Exit wound of bullet A1 is connected to less almost parallel multiple fiber waveguide G12~G42.
In addition, bending section G1r~G4r and reflecting surface R1~R4 are each provided with one, light in 4 fiber waveguide G1~G4
Waveguide Gs is set to linearly, so can suppress energy loss with minimal reflection number of times, and can easily and efficiently be formed
Wave multiplexer 1.
In addition, bending section G1r~G4r reflecting surface R1~R4 possesses following shape：For with than reflecting surface R1~R4
More by least being provided in the orthogonal plane of fiber waveguide G12~G42 of exit wound of bullet A1 sides bending section G1r~G4r bearing of trend
A direction of principal axis, be the slow-axis direction of incident light herein, reflected in this direction, with suppress incide reflecting surface R1
The diffusion of~R4 light.Therefore, wave multiplexer 1 can come high-precision defeated to the laser progress multiplex for dissipating less multiple wavelength
Go out.In addition, because reducing the order of reflection in fiber waveguide G12~G42, so energy loss can be reduced further.Further, since
Internally restrain laser, therefore relative ratio is easier to carry out in the past the axle alignment of incident light.
In addition, bending section G1r~G4r reflecting surface R1~R4 is in such as concave surface：Comprising than reflecting surface R1~R4 more
Bearing of trend and a defined direction of principal axis by fiber waveguide G12~G42 of exit wound of bullet A1 sides bending section G1r~G4r is (slow
Direction of principal axis) plane in possess curvature.Therefore, particularly, can easily and highly accurately it be obtained using semiconductor fabrication process
The wave multiplexer 1 for making almost parallel light be exported from exit wound of bullet A1 on slow-axis direction.
In addition, bending section G1r~G4r reflecting surface R1~R4 is at least for a defined direction of principal axis (slow-axis direction),
Make more to lean on exit wound of bullet to along than reflecting surface R1~R4 with the light that predetermined dispersion angle incides reflecting surface R1~R4
The direction reflection of the bearing of trend of fiber waveguide G12~G42 of A1 sides bending section.Thereby, it is possible to suppress fiber waveguide G12~
Reflection of the laser of guiding on slow-axis direction in G42.Therefore, it is possible to which the energy loss of incident light is controlled with simple structure
In floor level, while carrying out multiplex and projecting, and coupled lens, calibration lens can be omitted according to required output accuracy
Deng.The size and cost of multiplex and the structure exported are carried out to the light of multiple wavelength therefore, it is possible to further reduction.
In addition, bending section G1r~G4r reflecting surface R1~R4 is provided with the minute surface component for reflecting incident light.Thus, i.e.,
Coating will not also be passed through by making not limit incidence angle, can reliably reflect incident light and by guiding to exit wound of bullet A1 side
To.
In addition, respectively from entrance port E1~E4 to closest to the anti-of entrance port E1~E4 sides in each fiber waveguide G1~G4
Fiber waveguide G11~G41 (upstream waveguide) untill penetrating face R1~R4 be arranged respectively to relative to defined fiber waveguide (for example,
G11 it is) parallel or vertical.Thereby, it is possible to easily and critically the LASER Light Source for making laser light incident to entrance port E1~E4 be matched somebody with somebody
Put wave multiplexer 1.
In addition, 4 fiber waveguide G1~G4 and fiber waveguide Gs are arranged in single plane.Thus, fiber waveguide G1~G4, Gs
Formed and reflecting surface R1~R4 formation can be concentrated on one layer, so can be easier using semiconductor fabrication process and accurately
Ground is configured to them.In addition, in the height direction with the matching of the relative position of LASER Light Source can in the same manner as carry out, so matching somebody with somebody
Put and become easier to.
In addition, reflecting surface R1~R4 is arranged in 4 fiber waveguide G1~G4 one by one respectively, fiber waveguide Gs sets and is in line
It will be guided in shape, each fiber waveguide G1~G4 by reflecting surface R1~R4 light reflected to fiber waveguide Gs fiber waveguide G12~G42
Each the poor different angles of predetermined angular are differed respectively with the bearing of trend relative to fiber waveguide Gs with fiber waveguide Gs to be connected.By
This is impartial and evenly configures fiber waveguide G1~G4 to fiber waveguide Gs, therefore, it is possible to suitable intensity and diffusion to each ripple
Long light carries out multiplex and exported.
Furthermore, the invention is not restricted to above-mentioned embodiment, can there is various changes.
For example, in above-mentioned embodiment, listing and entrance port, exit wound of bullet and fiber waveguide being set on the shell of rectangular shape
Example, but the structure of rectangular shape is not limited to, according to the configuration space of wave multiplexer and desired injection direction, other shapes
Shape can also.That is, outgoing plane A and plane of incidence E might not be orthogonal.
In addition, in above-mentioned embodiment, minute surface component is set on reflecting surface R1~R4, so that incident light total reflection,
But, if incidence angle of the incident light from entrance port on reflecting surface R1~R4 is sufficiently large, fiber waveguide G1~G4 can be utilized
Central part and coating between the ratio of refractive index be reliably totally reflected, then can be not provided with minute surface component.
In addition, in above-mentioned embodiment, although only reflected once in fiber waveguide G1~G4 by reflecting surface R1~R4, but
And without prejudice to sets the reflecting surface of more than 2 in fiber waveguide.But, generally, the quantity of reflecting surface it is more few be easy to it is easy and
Accurately form fiber waveguide.
Meanwhile, it is concave without all reflectings surface in this case.For example, to almost parallel light again
The reflecting surface reflected can be simple plane.
In addition, in above-mentioned embodiment, fiber waveguide G1~G4 is formed as at the position apart from exit wound of bullet A1 equidistances
Collaborate with fiber waveguide Gs, but not limited to this.Fiber waveguide G1~G4 can also in the Y direction with diverse location successively with fiber waveguide Gs
Connection.
In addition, in above-mentioned embodiment, reflecting surface R1~R4 is formed as concave in X/Y plane, and in incident light
When angle is fully parallel, reflecting surface R1~R4 can also be plane, configure multiple (such as 3) plane reflection
Face, and form spill.In addition, the optically focused direction of concave depends on the position relationship of wave multiplexer 1 and LASER Light Source, so
LASER Light Source is rotated by 90 ° come in the case of configuring, optically focused is on quick shaft direction.But it is also possible to wave multiplexer 1 is formed as,
The direction that laser diode installed corresponding to surface etc. is generally configured, in the usual configuration on optically focused slow-axis direction.Meanwhile,
Scale, the mark in expression optically focused direction etc. can also be set on entrance port.
In addition, in above-mentioned embodiment, being illustrated in case of the quantity of entrance port is 4,7,8, but be not limited to
This.In addition, no matter which kind of situation, the order of the wavelength of the incident light of multiple entrance ports of optical multiplexer of the invention do not make
It is particularly limited to.But, in the case where more rightly distinguishing reflecting member, it can also be defined to input spy in specific entrance port
The light of standing wave length.
In addition, in above-mentioned embodiment, fiber waveguide G12~G42 is configured with 0.5 degree of interval, still, is not necessarily to
It is configured with impartial interval, thus, all fiber waveguide G1~G4 can not also be made to collaborate with identical position in Y-direction to light
Waveguide Gs.
In addition, can suitably set the section (face vertical with the direction of advance of incident light) of fiber waveguide size and its in length and breadth
Than.For example, in the case where the optical axis of incident laser is determined, the size and slow axis of quick shaft direction can be made according to the ratio of regulation
The size in direction is different.
In addition, the detail of structure and construction represented by above-mentioned embodiment etc., in the model without departing from spirit of the invention
Enclosing interior can suitably be changed.
Label declaration
1 wave multiplexer
A, Ae outgoing plane
A1, A1e exit wound of bullet
E, Ea, Ec plane of incidence
E1~E11, E1b~E4b, E1c~E3c entrance ports
G1~G4, G1c~G3c fiber waveguides
G11~G41, G11c~G31c, G12~G42, G12c~G32c fiber waveguides
G 1r~G 4r, G1rc~G3rc, G1rd~G4rd, Gsre bending section
Gs, Gsc, Gsd, Gse fiber waveguide
R1~R4, R1c~R3c, R1d~R4d reflectings surface
Claims (10)
1. a kind of optical multiplexer, it is characterised in that including：
For the entrance port of the light difference incidence of the wavelength of 2 quantity defined above；
The single exit wound of bullet that the incident light of entry portal from the specified quantity is projected；And
The incident light is guided to the fiber waveguide of the exit wound of bullet,
The fiber waveguide is made up of following part：One end is the entrance port and separately guides the described of the incident light
The independent wave guide of specified quantity；And the other end opposite with described one end of the independent wave guide is connected and by the independence respectively
The light that waveguide is each guided is guided to the single interflow waveguide of the exit wound of bullet,
The independent wave guide of the specified quantity is arranged respectively to the polyline shaped with the bending section for reflecting incident light,
The interflow waveguide is set to the polyline shaped or linear, in the interflow waveguide and the connection of each independent wave guide
Part, the independent wave guide of the specified quantity is distinguishing phase as defined in the bearing of trend from the interflow waveguide in angular range
Even, multiplex thus is carried out to the incident light of the entrance port from the specified quantity.
2. optical multiplexer as claimed in claim 1, it is characterised in that
The entrance port of the specified quantity is provided at least at 2 on the direction orthogonal with the outgoing plane of the setting exit wound of bullet
Different positions.
3. optical multiplexer as claimed in claim 1 or 2, it is characterised in that
The bending section is respectively arranged with one in the independent guided wave of the specified quantity,
The interflow waveguide is set to linearly.
4. optical multiplexer as claimed any one in claims 1 to 3, it is characterised in that
At least one in the bending section has following shape sideways：For with more leaning on the exit wound of bullet side than the bending section
An at least defined direction of principal axis in the orthogonal plane of the bearing of trend of the bending section of the fiber waveguide, is reflected and
The diffusion of the light of the side is incided in suppression.
5. optical multiplexer as claimed in claim 4, it is characterised in that
At least one in the bending section is in concave surface sideways：That is, the institute that the exit wound of bullet side is more leaned on than the bending section is being included
State in the bearing of trend of the bending section of fiber waveguide and the plane of an at least described defined direction of principal axis and possess curvature.
6. the optical multiplexer as described in claim 4 or 5, it is characterised in that
At least one in the bending section for an at least described defined direction of principal axis, makes with the prespecified angle of divergence sideways
Incide the light of the side to along than the bending section more by the exit wound of bullet side the fiber waveguide the bending section
Bearing of trend direction reflection.
7. the optical multiplexer as any one of claim 1 to 6, it is characterised in that
The minute surface component for reflecting incident light is provided with the side of the bending section.
8. the optical multiplexer as any one of claim 1 to 7, it is characterised in that
Upstream in each described independent wave guide from the entrance port untill the bending section closest to the entrance port side
Waveguide is set to parallel or vertical with the defined upstream waveguide respectively.
9. the optical multiplexer as any one of claim 1 to 8, it is characterised in that
The fiber waveguide is arranged in single plane.
10. optical multiplexer as claimed in claim 9, it is characterised in that
The bending section is respectively arranged with one in the independent wave guide of the specified quantity,
The interflow waveguide is set to linearly,
Downstream waveguide difference in the independent wave guide of each specified quantity from the bending section untill the coupling part
It is connected with the different angles that the bearing of trend relative to the interflow waveguide differs defined differential seat angle respectively with the interflow waveguide.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2016009154A JP2017129744A (en) | 2016-01-20 | 2016-01-20 | Optical multiplexing device |
| JP2016-009154 | 2016-01-20 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106990541A true CN106990541A (en) | 2017-07-28 |
Family
ID=59395601
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710043654.6A Pending CN106990541A (en) | 2016-01-20 | 2017-01-19 | Optical multiplexer |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP2017129744A (en) |
| CN (1) | CN106990541A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111465879A (en) * | 2017-10-26 | 2020-07-28 | 光研公司 | Light guide device, optical waveguide device, multi-wavelength light source module, and method for manufacturing optical waveguide device |
| CN112698511A (en) * | 2019-10-07 | 2021-04-23 | 松下知识产权经营株式会社 | Optical multiplexer and image projection apparatus using the same |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP6691518B2 (en) * | 2017-08-17 | 2020-04-28 | 日本電信電話株式会社 | Optical integrated circuit |
| JP2020064218A (en) * | 2018-10-18 | 2020-04-23 | 国立大学法人福井大学 | Optical multiplexer, light source module, two-dimensional optical scanning device and image projection device |
| JP7120053B2 (en) * | 2019-01-29 | 2022-08-17 | 日本電信電話株式会社 | optical circuit |
| FR3126049B1 (en) * | 2021-08-05 | 2024-03-01 | Commissariat Energie Atomique | Device for combining several light beams |
Citations (19)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6285204A (en) * | 1985-10-11 | 1987-04-18 | Tadashi Sueda | Y-branch optical waveguide |
| JPS63228788A (en) * | 1987-03-18 | 1988-09-22 | Matsushita Electric Ind Co Ltd | Semiconductor laser device |
| JPH01165181A (en) * | 1987-12-22 | 1989-06-29 | Fujikura Ltd | Optical semiconductor device |
| US6434302B1 (en) * | 1998-03-04 | 2002-08-13 | Jds Uniphase Corporation | Optical couplers for multimode fibers |
| US6571037B1 (en) * | 1999-05-21 | 2003-05-27 | British Telecommunications Public Limited Company | Arrayed waveguide gratings |
| CN1523395A (en) * | 2003-02-17 | 2004-08-25 | 台达电子工业股份有限公司 | Multiplexing apparatus |
| CN1591060A (en) * | 2003-09-05 | 2005-03-09 | 索尼株式会社 | Optical waveguide and optical information processing device |
| JP2005189385A (en) * | 2003-12-25 | 2005-07-14 | Sony Corp | Branch type optical waveguide, light source module, and optical information processing unit |
| KR20050076807A (en) * | 2004-01-23 | 2005-07-28 | 후지쯔 가부시끼가이샤 | Substrate optical waveguides having fiber-like shape and methods of making the same |
| JP2005250118A (en) * | 2004-03-04 | 2005-09-15 | Hitachi Cable Ltd | Wavelength multiplexing optical transmitter module |
| CN1715971A (en) * | 2004-06-18 | 2006-01-04 | 索尼株式会社 | Light wave guide device,light source device and light information processor |
| WO2007015577A1 (en) * | 2005-08-04 | 2007-02-08 | Fujifilm Corporation | Combined light source |
| US20070036486A1 (en) * | 2004-05-26 | 2007-02-15 | Nobuo Miyadera | Light branching optical waveguide |
| JP2007164109A (en) * | 2005-12-19 | 2007-06-28 | National Institute Of Advanced Industrial & Technology | Optical waveguide having built-in filter, wdm module and optical integrated circuit |
| CN101952766A (en) * | 2007-12-28 | 2011-01-19 | 3M创新有限公司 | Optical combiner |
| CN102472871A (en) * | 2009-07-24 | 2012-05-23 | 大自达电线股份有限公司 | Three-wavelength optical multiplexer |
| CN102652281A (en) * | 2010-10-19 | 2012-08-29 | 松下电器产业株式会社 | Optical multiplexer and projector |
| CN204536594U (en) * | 2012-06-08 | 2015-08-05 | 通快激光有限公司 | Fiber coupler |
| WO2015170505A1 (en) * | 2014-05-09 | 2015-11-12 | 国立大学法人福井大学 | Multiplexer, image projection device using same, and image projection system |
-
2016
- 2016-01-20 JP JP2016009154A patent/JP2017129744A/en active Pending
-
2017
- 2017-01-19 CN CN201710043654.6A patent/CN106990541A/en active Pending
Patent Citations (19)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6285204A (en) * | 1985-10-11 | 1987-04-18 | Tadashi Sueda | Y-branch optical waveguide |
| JPS63228788A (en) * | 1987-03-18 | 1988-09-22 | Matsushita Electric Ind Co Ltd | Semiconductor laser device |
| JPH01165181A (en) * | 1987-12-22 | 1989-06-29 | Fujikura Ltd | Optical semiconductor device |
| US6434302B1 (en) * | 1998-03-04 | 2002-08-13 | Jds Uniphase Corporation | Optical couplers for multimode fibers |
| US6571037B1 (en) * | 1999-05-21 | 2003-05-27 | British Telecommunications Public Limited Company | Arrayed waveguide gratings |
| CN1523395A (en) * | 2003-02-17 | 2004-08-25 | 台达电子工业股份有限公司 | Multiplexing apparatus |
| CN1591060A (en) * | 2003-09-05 | 2005-03-09 | 索尼株式会社 | Optical waveguide and optical information processing device |
| JP2005189385A (en) * | 2003-12-25 | 2005-07-14 | Sony Corp | Branch type optical waveguide, light source module, and optical information processing unit |
| KR20050076807A (en) * | 2004-01-23 | 2005-07-28 | 후지쯔 가부시끼가이샤 | Substrate optical waveguides having fiber-like shape and methods of making the same |
| JP2005250118A (en) * | 2004-03-04 | 2005-09-15 | Hitachi Cable Ltd | Wavelength multiplexing optical transmitter module |
| US20070036486A1 (en) * | 2004-05-26 | 2007-02-15 | Nobuo Miyadera | Light branching optical waveguide |
| CN1715971A (en) * | 2004-06-18 | 2006-01-04 | 索尼株式会社 | Light wave guide device,light source device and light information processor |
| WO2007015577A1 (en) * | 2005-08-04 | 2007-02-08 | Fujifilm Corporation | Combined light source |
| JP2007164109A (en) * | 2005-12-19 | 2007-06-28 | National Institute Of Advanced Industrial & Technology | Optical waveguide having built-in filter, wdm module and optical integrated circuit |
| CN101952766A (en) * | 2007-12-28 | 2011-01-19 | 3M创新有限公司 | Optical combiner |
| CN102472871A (en) * | 2009-07-24 | 2012-05-23 | 大自达电线股份有限公司 | Three-wavelength optical multiplexer |
| CN102652281A (en) * | 2010-10-19 | 2012-08-29 | 松下电器产业株式会社 | Optical multiplexer and projector |
| CN204536594U (en) * | 2012-06-08 | 2015-08-05 | 通快激光有限公司 | Fiber coupler |
| WO2015170505A1 (en) * | 2014-05-09 | 2015-11-12 | 国立大学法人福井大学 | Multiplexer, image projection device using same, and image projection system |
Non-Patent Citations (1)
| Title |
|---|
| 李景镇: "《光学手册 下卷》", 31 July 2010, 陕西科学技术出版社 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111465879A (en) * | 2017-10-26 | 2020-07-28 | 光研公司 | Light guide device, optical waveguide device, multi-wavelength light source module, and method for manufacturing optical waveguide device |
| CN112698511A (en) * | 2019-10-07 | 2021-04-23 | 松下知识产权经营株式会社 | Optical multiplexer and image projection apparatus using the same |
| CN112698511B (en) * | 2019-10-07 | 2023-11-10 | 松下知识产权经营株式会社 | Light multiplexer and image projection apparatus using the same |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2017129744A (en) | 2017-07-27 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106990541A (en) | Optical multiplexer | |
| CN104216042B (en) | Light guide structure and head-mounted display equipment | |
| JP5149200B2 (en) | Surface illumination device and liquid crystal display device using the same | |
| US20200348461A1 (en) | Optical substrate and display device | |
| CN103424803B (en) | Optical waveguide device system | |
| CN104678555B (en) | The tooth form of diopter correction inlays planar waveguide optical device | |
| RU2011137513A (en) | PLAYING AN IMAGE THROUGH MULTIPLE LED FIBER SECTIONS | |
| CN109445096A (en) | A kind of full-color inclination waveguide projection display system | |
| CN206818914U (en) | Reflection-type wavelength division multiplexer based on film filtering slice | |
| CN102893138B (en) | Optical system for measurement, luminance meter using the optical system, color luminance meter, and color meter | |
| CN204271437U (en) | Surface fixed diffraction optics laser module | |
| EP3460571A1 (en) | Light source system, projection device of same, and lighting device thereof | |
| CN110161758A (en) | Light transformational structure, backlight module and virtual reality display device | |
| WO2020168794A1 (en) | Optical fiber connector and fabrication method therefor | |
| US7672560B2 (en) | Coupling device for use in optical waveguides | |
| US9529164B1 (en) | Beam-splitting integrated optical element and optical transmitter module | |
| CN104754172A (en) | Light guide, light guiding device and image reading apparatus | |
| WO2020017118A1 (en) | Photometric device | |
| US20150378104A1 (en) | Coupling optical system | |
| US11940641B2 (en) | Transversal light pipe | |
| KR20220054876A (en) | Two-dimensional optical waveguides, virtual and real optical wave combiners, and AR devices | |
| CN208207285U (en) | A kind of integrated coupling module | |
| CN107678107B (en) | Integrated coupling module | |
| CN114415376B (en) | Display device and virtual reality display device | |
| US11835383B2 (en) | Optical systems and devices for monitoring a light signal |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170728 |