CN109613654A - Multi-channel parallel wavelength-division multiplex/demultiplexing spectrum groupware and its optical device - Google Patents
Multi-channel parallel wavelength-division multiplex/demultiplexing spectrum groupware and its optical device Download PDFInfo
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- CN109613654A CN109613654A CN201811425900.5A CN201811425900A CN109613654A CN 109613654 A CN109613654 A CN 109613654A CN 201811425900 A CN201811425900 A CN 201811425900A CN 109613654 A CN109613654 A CN 109613654A
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/24—Coupling light guides
- G02B6/26—Optical coupling means
- G02B6/28—Optical coupling means having data bus means, i.e. plural waveguides interconnected and providing an inherently bidirectional system by mixing and splitting signals
- G02B6/293—Optical coupling means having data bus means, i.e. plural waveguides interconnected and providing an inherently bidirectional system by mixing and splitting signals with wavelength selective means
- G02B6/29379—Optical coupling means having data bus means, i.e. plural waveguides interconnected and providing an inherently bidirectional system by mixing and splitting signals with wavelength selective means characterised by the function or use of the complete device
- G02B6/2938—Optical coupling means having data bus means, i.e. plural waveguides interconnected and providing an inherently bidirectional system by mixing and splitting signals with wavelength selective means characterised by the function or use of the complete device for multiplexing or demultiplexing, i.e. combining or separating wavelengths, e.g. 1xN, NxM
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/24—Coupling light guides
- G02B6/26—Optical coupling means
- G02B6/27—Optical coupling means with polarisation selective and adjusting means
- G02B6/2746—Optical coupling means with polarisation selective and adjusting means comprising non-reciprocal devices, e.g. isolators, FRM, circulators, quasi-isolators
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/24—Coupling light guides
- G02B6/26—Optical coupling means
- G02B6/28—Optical coupling means having data bus means, i.e. plural waveguides interconnected and providing an inherently bidirectional system by mixing and splitting signals
- G02B6/293—Optical coupling means having data bus means, i.e. plural waveguides interconnected and providing an inherently bidirectional system by mixing and splitting signals with wavelength selective means
- G02B6/29346—Optical coupling means having data bus means, i.e. plural waveguides interconnected and providing an inherently bidirectional system by mixing and splitting signals with wavelength selective means operating by wave or beam interference
- G02B6/29361—Interference filters, e.g. multilayer coatings, thin film filters, dichroic splitters or mirrors based on multilayers, WDM filters
- G02B6/29362—Serial cascade of filters or filtering operations, e.g. for a large number of channels
- G02B6/29365—Serial cascade of filters or filtering operations, e.g. for a large number of channels in a multireflection configuration, i.e. beam following a zigzag path between filters or filtering operations
- G02B6/29367—Zigzag path within a transparent optical block, e.g. filter deposited on an etalon, glass plate, wedge acting as a stable spacer
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/24—Coupling light guides
- G02B6/26—Optical coupling means
- G02B6/32—Optical coupling means having lens focusing means positioned between opposed fibre ends
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/24—Coupling light guides
- G02B6/42—Coupling light guides with opto-electronic elements
- G02B6/4201—Packages, e.g. shape, construction, internal or external details
- G02B6/4286—Optical modules with optical power monitoring
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/24—Coupling light guides
- G02B6/42—Coupling light guides with opto-electronic elements
- G02B6/4201—Packages, e.g. shape, construction, internal or external details
- G02B6/4287—Optical modules with tapping or launching means through the surface of the waveguide
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04J—MULTIPLEX COMMUNICATION
- H04J14/00—Optical multiplex systems
- H04J14/02—Wavelength-division multiplex systems
- H04J14/0227—Operation, administration, maintenance or provisioning [OAMP] of WDM networks, e.g. media access, routing or wavelength allocation
- H04J14/0254—Optical medium access
- H04J14/0261—Optical medium access at the optical multiplex section layer
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Optical Elements Other Than Lenses (AREA)
- Optical Couplings Of Light Guides (AREA)
Abstract
The present invention provides a kind of multi-channel parallel wavelength-division multiplex/demultiplexing spectrum groupwares, including glass blocks, prism and filter set, filter set and prism are mounted on the one side of glass blocks, filter set includes multiple optical filters being sequentially arranged, arrangement is bonded between two neighboring optical filter, the working face of optical filter is coated with the film layer for reflecting or passing through for corresponding wavelength optical signal, prism has the first working face, second working face and third working face, angle between first working face and the second working face is equal to the central task angle [alpha] of optical filter, second working face is parallel with third working face, third working face fits with filter set.The design that the invention passes through film layer on the position of optical filter and optical filter, reflect corresponding channel optical signal, and other channel optical signals transmit, multiplex finally is carried out to multipath light signal, spectrum groupware assembly is simple, reduces to the power loss during the assembly precision requirement of optical filter and multiplex.
Description
Technical field
The invention belongs to the optical devices of optic communication and building block technique field, and in particular to a kind of multi-channel parallel wavelength-division is multiple
With/demultiplexing spectrum groupware and its optical device, can be applied to CWDM, LWDM wavelength, and can be packaged in QSFP28, QSFP DD,
In the modules such as OSFP.
Background technique
For the 100Gbps such as QSFP28, PSM4 and the high-speed optical devices of the above rate, generally use 4 channel optical signals into
Row transmitted in parallel and reception, there are two types of modes for the optical path mainstream of device level, and a kind of mode is integrated for device inside, i.e., by wavelength-division
Multiplex/demultiplex component is integrated in device inside, and high-speed parallel is applied to as disclosed in patent CN201210184192 over long distances
The novel wavelength-division multiplex of transmission demultiplexes optical assembly, and another way is integrated for inside modules, that is, uses large scale, tail optical fiber fibre wave
Discrete device is integrated in module by division multiplexer, both technique platforms have their own advantages, and very practical.Currently, for
The technical solution of multi-wavelength multiplex usually has following several: one, waveguide type, such as AWG and etching type grating, two, optical filter type,
If Z-shaped or W type optical filter combine, three, polarized composite wave, if PBS, reflector plate and the polarizer combine, these types of type is common
Way is integrated in inside optical device, is to require, but there are still some problems with small Insertion Loss, small size.For waveguide type,
AWG chip this body length at least 8mm, and waveguide needs convergent lens to couple with chip of laser, and it is totally long to will cause device
It spends long and is unsatisfactory for device encapsulation and requires, while the temperature stability issues of AWG and Insertion Loss problem never obtain matter
Improve；For polarized composite wave, PBS element assembled dimension is very wide very big, the width and length of the serious limit device of meeting, and existing
Polarized composite wave scheme in PBS must be matched with wave plate, although causing the spatially multiplex of the light beam after multiplex,
It is still two kinds of mutually perpendicular polarization states on polarization, this mode is for emitting module, since isolator must be placed,
Isolator has at least Insertion Loss of 3dB to mutually perpendicular polarization state, and especially for EML type laser long distance transmission, 3dB is inserted
The influence of damage is very big, will lead to light power deficiency；For optical filter type, Z-shaped filter set on existing market, such as specially
Sharp CN201210184192, in filter set N channel optical filter with below N+1, N+2, N+2 etc. are between channels
Related, mounted tolerance can accumulate subsequent several channels, cause the manufacturing tolerance in last channel more sensitive, for example,
As shown in Fig. 1 (a) and Fig. 1 (b), the filter set in the 1st channel is due to mounting tolerance, and there are angle, θs, then causing the 2nd, 3,4
The emergent light in channel is respectively present the deviation of 2 θ, 4 θ, 6 θ, and there are obvious lateral displacements.Therefore, this class formation for
The attachment of filter elements and the depth of parallelism requirement of glass substrate are very high, restrict the assembly precision of filter set.
Summary of the invention
The purpose of the present invention is overcoming the multi-wavelength multiplex technology power loss of existing optical filter type big, and it is public to there is assembly
The problem of difference.
For this purpose, the present invention provides a kind of multi-channel parallel wavelength-division multiplex/demultiplexing spectrum groupware, including glass blocks, rib
Mirror and filter set, the filter set and prism are mounted on the one side of the glass blocks, and the filter set includes more
A optical filter, multiple optical filter are successively mounted on the side of glass blocks, and arrangement, institute are bonded between two neighboring optical filter
The working face for stating optical filter is coated with to be reflected or the film layer that passes through for corresponding wavelength optical signal, the prism have for light input/
First working face of output, the second working face for being totally reflected input light and for light output/input third working face,
Angle between first working face and the second working face is equal to the central task angle [alpha] of optical filter, second working face
Parallel with third working face, the third working face fits with the filter set.
Further, the glass blocks is triangular structure, including level right angle face, vertical right-angle surface and inclined-plane are described
Angle between inclined-plane and level right angle face is 2 α, and the vertical right-angle surface of the glass blocks is equipped with anti-reflection film；The optical filter
Group and prism are mounted on inclined-plane, and are sequentially arranged from bottom to up along the inclined direction on inclined-plane.
Further, the glass blocks, prism and filter set use identical glass material.
Further, the optical filter is parallelogram prism structure, and the acute angle between its adjacent plane is
(90 ° of-α).
Further, the central task angle [alpha] of the optical filter is 8 °, 12 ° or 13.5 °.
Further, the film layer is with anti-film, high pass film or low pass film.
In addition, the present invention also provides the transmitting optical device using above-mentioned spectrum groupware, including the first shell, Yi Jifen
First electrical interface and the first optical port contact pin at the first shell both ends are not set, have been sequentially arranged backlight spy in first shell
Survey device chipset, chip of laser group, collimation lens set, spectrum groupware, isolator and the first deflecting prism, the backlight detection
Device chipset is arranged in first electrical interface one end, and the collimation lens set output end is connected with the glass blocks of the spectrum groupware,
The output end of the prism of the spectrum groupware is connected with the isolator, and the output end of first deflecting prism is quasi- by first
Straight lens are connected with the first optical port contact pin.
As one of embodiment, convergent lens group is set between the chip of laser group and collimation lens set.
Further, the isolator is magneto-optical isolator, and its internal magneto-optical crystal is set in 4~10 degree of overturning angles
It sets.
The present invention also provides the reception optical devices using above-mentioned spectrum groupware, including the second shell, and set respectively
Set the second electrical interface and the second optical port contact pin at the second shell both ends, be disposed in second shell detector chip group,
Collimator lens array, reflecting mirror, spectrum groupware and the second deflecting prism, the detector chip group, collimator lens array and anti-
Mirror successively interval setting from the bottom to top is penetrated, and detector chip group is connected with second electrical interface, the reflecting mirror input terminal
It is connected with the glass blocks of the spectrum groupware, the input terminal of the prism of the spectrum groupware is connected with second deflecting prism,
The input terminal of second deflecting prism is connected by the second collimation lens with the second optical port contact pin.
Compared with prior art, beneficial effects of the present invention:
(1) this multi-channel parallel wavelength-division multiplex/demultiplexing spectrum groupware provided by the invention passes through setting optical filter
Position, and by the film layer on optical filter the optical signal of corresponding channel wavelength is reflected, and other channel wavelengths
Optical signal transmit, multiplex finally is carried out to multipath light signal, spectrum groupware assembly is simple, greatly reduces to optical filtering
Power loss during the assembly precision requirement of piece and multiplex, avoids a certain channel in existing filter set installation process
Influence of the inclination of optical filter to other channels.
(2) this transmitting optical device provided by the invention and receive optical device use have multi-channel parallel wavelength-division multiplex/
The spectrum groupware for demultiplexing function, reduces the placement accuracy of optical filter, and assembling process is simple, greatly reduces cost, and each
The optical signal coupling efficiency in channel is high, overcome existing transmitting optical device and receive optical device volume is big, loss greatly, encapsulation precision
It is required that the disadvantages of high, at high cost.
The present invention is described in further details below with reference to attached drawing.
Detailed description of the invention
Fig. 1 (a) is existing ideal optical filter type index path；
Optical filter type index path when Fig. 1 (b) is existing first passage optical filter θ angular displacement；
Fig. 2 is the structural schematic diagram of spectrum groupware in the present invention；
Fig. 3 is the structural schematic diagram of the prism of spectrum groupware in the present invention；
Fig. 4 is the optic path schematic diagram for emitting optical device in embodiment 2；
Fig. 5 is the optic path schematic diagram for emitting optical device in embodiment 3；
Fig. 6 is the optic path enlarged diagram in the portion I in Fig. 5；
Fig. 7 is the optic path top view that optical device is received in embodiment 4；
Fig. 8 is the optic path side view that optical device is received in embodiment 4.
Description of symbols: 1, glass blocks；2, prism；3, filter set；4, the first electrical interface；5, chip of laser group；
6, collimation lens set；7, the first shell；8, isolator；9, the first deflecting prism；10, the first collimation lens；11, the first optical port is inserted
Needle；12, back light detector chipset；13, convergent lens group；14, the second collimation lens；15, the second deflecting prism；16, second
Shell；17, collimator lens array；18, reflecting mirror；19, detector chip group；20, the second electrical interface；21, the second optical port contact pin；
101, level right angle face；102, vertical right-angle surface；103, inclined-plane；201, the first working face；202, the second working face；203, third
Working face；301, optical filter one；302, optical filter two；303, optical filter three.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts all other
Embodiment shall fall within the protection scope of the present invention.
In the description of the present invention, it is to be understood that, term " center ", "upper", "lower", "front", "rear", " left side ",
The orientation or positional relationship of the instructions such as " right side ", "vertical", "horizontal", "top", "bottom", "inner", "outside" is based on the figure
Orientation or positional relationship is merely for convenience of description of the present invention and simplification of the description, rather than the device of indication or suggestion meaning or
Element must have a particular orientation, be constructed and operated in a specific orientation, therefore be not considered as limiting the invention.
Term " first ", " second " be used for descriptive purposes only and cannot be understood as indicating or suggesting relative importance or
Implicitly indicate the quantity of indicated technical characteristic." first " is defined as a result, the feature of " second " can be expressed or imply
Ground includes one or more of the features；In the description of the present invention, unless otherwise indicated, the meaning of " multiple ", " several "
It is two or more.
It is illustrated by taking the 4 channel optical devices for CWDM (coarse wavelength division multiplexing systems) as an example below, wherein operation wavelength
Using but be not limited to common 4 wavelength or the combination of CWDM: λ1、λ2、λ3、λ4, such as 1271nm, 1291nm, 1311nm,
1331nm etc..
Embodiment 1:
As shown in Fig. 2, present embodiments providing a kind of multi-channel parallel wavelength-division multiplex/demultiplexing spectrum groupware, including glass
Glass block 1, prism 2 and filter set 3, optimization, the glass blocks 1, prism 2 and filter set 3 use identical glass material,
To guarantee its optics and thermal characteristic having the same.The filter set 3 and prism 2 are mounted on the side of the glass blocks 1
On face, optimization, filter set 3 and prism 2 pass through index matching glue sticking in the side of glass blocks 1；The filter set 3
Including multiple optical filters, multiple optical filter is successively mounted on the side of glass blocks 1, and is bonded between two neighboring optical filter
It arranges, filled between two optical filters to fit using index matching glue, the working face of the optical filter is coated with for correspondence
The film layer that wavelength channels reflect or pass through, specifically, may include such as anti-for a channel optical signal in the film layer of optical filter
Penetrate with anti-film, and supply the high pass film or low pass film of other channel optical signals transmission.And as shown in figure 3, the prism 2 has use
In the first working face 201 of light input/output, the second working face 202 for being totally reflected input light and for light output/defeated
The third working face 203 entered in order to guarantee that optical signal can pass through the first working face 201 and third working face 203, and passes through
The total reflection of second working face 202, optimization, anti-reflection film can be plated on the first working face 201 and third working face 203, the
Plating total reflection film on two working faces 202.Angle between first working face 201 and the second working face 202 is equal to optical filter
Central task angle [alpha], the range of α do not limit, preferably 8 °, 12 ° or 13.5 °；Second working face 202 and third work
It is parallel to make face 203, the third working face 203 fits with the filter set 3, and passes through index matching among both
Glue filling.
Specifically, the glass blocks 1 is triangular structure, including level right angle face 101, vertical right-angle surface 102 and inclined-plane
103, the angle between the inclined-plane 103 and level right angle face 101 is 2 α；The filter set 3 and prism 2 are mounted on inclined-plane
On 103, and it is sequentially arranged from bottom to up along the inclined direction on inclined-plane 103；According to the first working face of prism 2 after the assembling of this structure
201 is parallel with the vertical right-angle surface 102 of glass blocks 1, transmits into the optical signal inside filter plate to ensure that along glass blocks 1
103 direction parallel transmission of inclined-plane.And 102 input/output of vertical right-angle surface of each channel optical signals glass blocks 1, in order to improve
The vertical right-angle surface 102 of the efficiency of each channel optical signal input/output glass blocks 1, the glass blocks 1 is equipped with anti-reflection film.Institute
Stating optical filter is parallelogram prism structure, and the acute angle between its adjacent plane is (90 ° of-α).
The position that this multi-channel parallel wavelength-division multiplex/demultiplexing spectrum groupware that the embodiment provides passes through setting optical filter
It sets, and by the film layer on optical filter the optical signal of corresponding channel wavelength is reflected, and other channel wavelengths
Optical signal transmits, and finally carries out multiplex to multipath light signal, and spectrum groupware assembly is simple, greatly reduces to optical filter
Assembly precision require and multiplex during power loss, avoid a certain channel filter in existing filter set installation process
Influence of the inclination of mating plate to other channels.
Embodiment 2:
As shown in figure 4, present embodiments providing a kind of using multi-channel parallel wavelength-division multiplex/demultiplexing point in embodiment 1
The transmitting optical device of optical assembly, including the first shell 7, and it is separately positioned on first electrical interface 4 and at 7 both ends of the first shell
One optical port contact pin 11 is disposed with back light detector chipset 12, chip of laser group 5, collimation lens set in first shell 7
6, spectrum groupware, isolator 8 and the first deflecting prism 9；The back light detector chipset 12 is arranged in the first electrical interface 4 one
End, the preceding light direction of the chip of laser group 5 is towards collimation lens set 6, and chip of laser group 5 is located at collimation lens set
Near 6 back focal plane, the vertical right-angle surface 102 of the glass blocks 1 of 6 output end of collimation lens set and the spectrum groupware is held in the mouth
It connects, the output end of the prism 2 of the spectrum groupware is connected with the isolator 8, and the output end of first deflecting prism 9 passes through
First collimation lens 10 is connected with the first optical port contact pin 11.
Wherein, isolator 8 according to specific parameter request can use monopole isolator or bipolar separators, for avoid every
Influence of the surface reflection to chip of laser from device 8, the preferred magneto-optical isolator of isolator 8, internal magneto-optical crystal in 4~
10 degree of (preferably 8 degree) overturning angle settings.First deflecting prism 9 is parallel four sides row structure, preferred 45° angle type prism, first turn
Folding prism 9 effect be so that optical path transfer to suitable position, be incident to the first collimation lens 10, the first collimation lens 10
Effect is that the quasi-parallel light transmitted in the first shell 7 is converged to the first optical port contact pin 11, and the first optical port contact pin 11 can be slotting
The optical port for pulling out type is also possible to tail fiber type optical port, the preferred single mode optical fiber type of the first optical port contact pin 11；And the first collimation lens 10 can
To be arranged inside the first shell 7, it can also be embedded on 7 shell wall of the first shell, also can be set in the outside of the first shell 7；
First collimation lens 10 is arranged at the first 7 outside of shell, and the first collimation lens 10 can be fabricated to the first optical port contact pin 11
Collimator.
In addition, above-mentioned all optical elements of the transmitting optical device it is settable in the same plane, can also be by
Optical element forms a dislocation in height in one optical port contact pin 11 and the first shell 7, at this time using the first deflecting prism 9
Carry out three-dimensional turnover.
The present embodiment is respectively λ with the operation wavelength of four-way1、λ2、λ3And λ4For, illustrate the hair of the present embodiment
Penetrate the optic path process of optical device, wherein filter set 3 includes three optical filters in spectrum groupware, along the inclined-plane of glass blocks 1
103 are followed successively by optical filter 1, optical filter 2 302 and optical filter 3 303 respectively from the bottom to top, and the work of optical filter 1
Face, which is coated with, makes λ4The film layer of reflection, the working face of optical filter 2 302, which is coated with, makes λ4Transmission, λ3The film layer of reflection, optical filter 3 303
Working face to be coated be λ4、λ3Transmission, λ2The film layer of reflection, being coated on the third working face 203 of prism 2 makes λ4、λ3、λ2Transmission,
λ1The film layer of reflection.Back light detector chipset 12 include respectively with λ1、λ2、λ3、λ4One-to-one four backlights in four channels
Detector chip.Chip of laser group 5 include respectively with λ1、λ2、λ3、λ4One-to-one four chip of laser in four channels.
Collimation lens set 6 equally includes and λ1、λ2、λ3、λ4One-to-one four collimation lenses in four channels.
λ1Light wave by being transferred to corresponding collimation lens in the form of diverging after corresponding chip of laser lasing, by
Collimation lens is collimated into quasi-parallel light, and quasi-parallel light is incident on the vertical right angle of glass blocks 1 in a manner of vertical or is approximately perpendicular
Face 102 enters prism 2, due to 3 He of prism after the inclined-plane 103 that the glass entity of glass blocks 1 reaches glass blocks 1 later
The material of glass blocks 1 is identical, and quasi-parallel light can be directly entered prism 2 without refraction, and reach the third working face of prism 2
203, third working face 203 is coated with film layer and makes λ1Light with 2 α corner reflections, and the side of the second working face 202 towards prism 2
To the second working face 202 for reaching prism 2 later is totally reflected, and is then emitted from the first working face 201 of prism 2.
λ2Light wave by being transferred to corresponding collimation lens in the form of diverging after corresponding chip of laser lasing, by
Collimation lens is collimated into quasi-parallel light, and quasi-parallel light is incident on the vertical right angle of glass blocks 1 in a manner of vertical or is approximately perpendicular
Face 102 enters optical filter 3 303 after the inclined-plane 103 that the glass entity of glass blocks 1 reaches glass blocks 1 later, due to filter
Mating plate 3 303 is identical with the material of glass blocks 1, and quasi-parallel light can be directly entered optical filter 3 303 without refraction, and reach filter
The working face of mating plate 3 303, the working face of optical filter 3 303 are coated with film layer and make λ2Light with 2 α corner reflections, towards prism 2
Direction reaches the third working face 203 of prism 2, since the film layer of third working face 203 is to λ after optical filter 3 3032It is
Transmission, λ2Across third working face 203, enters prism 2 later and reaches the second working face 202 of prism 2 and be totally reflected,
Then it is emitted from the first working face 201 of prism 2.
λ3Light wave by being transferred to corresponding collimation lens in the form of diverging after corresponding chip of laser lasing, by
Collimation lens is collimated into quasi-parallel light, and quasi-parallel light is incident on the vertical right angle of glass blocks 1 in a manner of vertical or is approximately perpendicular
Face 102 enters optical filter 2 302 after the inclined-plane 103 that the glass entity of glass blocks 1 reaches glass blocks 1 later；Due to filter
Mating plate 2 302 is identical with the material of glass blocks 1, and quasi-parallel light can be directly entered optical filter 2 302 without refraction, and reach filter
The working face of mating plate 2 302, the working face of optical filter 2 302 are coated with film layer and make λ3Light with 2 α corner reflections, towards optical filter
3 303 direction reaches the working face of optical filter 3 303, due to the working face of optical filter 3 303 after optical filter 3 303
Film layer to λ3It is transmission, λ3Across the working face of optical filter 3 303, into optical filter 3 303, λ later3Across optical filter
3 303 and the third working face 203 of prism 2 is reached, enters prism 2 later and reach the second working face 202 of prism 2 and carry out entirely
Then reflection is emitted from the first working face 201 of prism 2.
λ4Light wave by being transferred to corresponding collimation lens in the form of diverging after corresponding chip of laser lasing, by
Collimation lens is collimated into quasi-parallel light, and quasi-parallel light is incident on the vertical right angle of glass blocks 1 in a manner of vertical or is approximately perpendicular
Face 102 enters optical filter 1 after the inclined-plane 103 that the glass entity of glass blocks 1 reaches glass blocks 1 later；Due to filter
Mating plate 1 is identical with the material of glass blocks 1, and quasi-parallel light can be directly entered optical filter 1 without refraction, and reach filter
The working face of mating plate 1, the working face of optical filter 1 are coated with film layer and make λ4Light with 2 α corner reflections, towards optical filter
The working face of optical filter 2 302 is arrived in 2 302 direction after optical filter 1, due to the working face of optical filter 2 302
Film layer is to λ4It is transmission, λ4Across the working face of optical filter 2 302, into optical filter 2 302, optical filter 3 303 is reached later
Working face, due to optical filter 3 303 working face film layer to λ4It is transmission, λ4Across the working face of optical filter 3 303,
Into optical filter 3 303, the third working face 203 of prism 2 is reached later, since the film layer of third working face 203 is to λ4It is
It penetrates, λ4Across third working face 203, enter prism 2 later and reach the second working face 202 of prism 2 and be totally reflected, so
It is emitted afterwards from the first working face 201 of prism 2.
The light wave in four channels is emitted from the first working face 201 of prism 2, and four-way spatially carries out at this time
Multiplex, multiplex is at a branch of light wave, and the light beam of multiplex continues transmission and reaches isolator 8, and the optical direction of isolator 8 allows four
Light wave passes through, and through the first deflecting prism 9 is reached after isolator 8, is transferred in a manner of translation by the first deflecting prism 9 later,
The first collimation lens 10 is reached later, and the first optical port contact pin 11 is converged to by the first collimation lens 10.And the first collimation herein
Why lens 10 are referred to as collimation lens rather than convergent lens, are because being meeting for the quasi-parallel light in the first shell 7
Poly-, but the light inversely inputted for the first optical port contact pin 11 is collimation.
Embodiment 3:
As shown in Figure 5 and Figure 6, the transmitting optical device structure of the present embodiment is substantially the same manner as Example 2, and difference is described
Convergent lens group 13 is additionally provided between chip of laser group 5 and collimation lens set 6, other structures are identical as example 2, herein
No longer repeat.In structure, chip of laser group 5 is arranged at the suitable object distance of convergent lens group 13, convergent lens group 13
Effect is that the divergent beams of 5 lasing of chip of laser group are converged to a picture point, the rear focus and the picture point of collimation lens set 6
It is overlapped.λ1Light wave in the form of diverging by being transferred to corresponding convergent lens after corresponding chip of laser lasing, by meeting
Poly- lens are converged to a picture point, and picture point continues to be transferred to corresponding collimation lens, due to the rear focus of picture point and collimation lens
It is overlapped, therefore picture point is collimated collimated into quasi-parallel light, quasi-parallel light continues the vertical right-angle surface that transmission reaches glass blocks 1
102, optic path later is identical as example 2, no longer repeats, and other three roads λ2、λ3、λ4Optic path process and λ1Class
Seemingly, it no longer repeats.
Embodiment 4:
As shown in Figure 7 and Figure 8, it present embodiments provides a kind of using multi-channel parallel wavelength-division multiplex in embodiment 1/demultiplex
With the reception optical device of spectrum groupware, including the second shell 16, and it is separately positioned on second electricity at 16 both ends of the second shell and connects
Mouthfuls 20 and the second optical port contact pin 21, detector chip group 19, collimator lens array 17, reflection are disposed in second shell 16
Mirror 18, spectrum groupware and the second deflecting prism 15, the detector chip group 19, collimator lens array 17 and reflecting mirror 18 are under
Supreme successively stacked setting, and detector chip group 19 is connected with second electrical interface 20, detector chip group 19 it is photosensitive
Face is located at the back focal plane of collimator lens array 17, the glass blocks 1 of 18 input terminal of reflecting mirror and the spectrum groupware
Vertical right-angle surface 102 is connected, and the input terminal of the prism 2 of the spectrum groupware is connected with second deflecting prism 15, and described the
The input terminal of two deflecting prisms 15 is connected by the second collimation lens 14 with the second optical port contact pin 21.
Wherein, the second deflecting prism 15 is parallel four sides row structure, preferred 45° angle type prism, the second deflecting prism 15
Effect is so that optical path is transferred to suitable position.The effect of second collimation lens 14 is the light for inputting the second optical port contact pin 21
It is collimated into quasi-parallel light.The optical port that second optical port contact pin 21 can be plug-type is also possible to tail fiber type optical port, and the second optical port is inserted
The preferred single mode optical fiber type of needle 21.Second collimation lens 14 can be set inside the second shell 16, can also be embedded in the second shell
On 16 shell walls, also it can be set in the outside of the second shell 16；Second collimation lens 14 is arranged at the second 16 outside of shell, the
Two collimation lenses 14 and the second optical port contact pin 21 can be fabricated to collimator.
The present embodiment is respectively equally λ with the operation wavelength of four-way1、λ2、λ3And λ4For, illustrate the present embodiment
Reception optical device optic path process, wherein in spectrum groupware filter set 3 include three optical filters, along glass blocks 1
Inclined-plane 103 is followed successively by optical filter 1, optical filter 2 302 and optical filter 3 303 respectively from the bottom to top, and optical filter 1
Working face, which is coated with, makes λ4The film layer of reflection, the working face of optical filter 2 302, which is coated with, makes λ4Transmission, λ3The film layer of reflection, optical filter three
303 working face, which is coated with, makes λ4、λ3Transmission, λ2The film layer of reflection, being coated on the third working face 203 of prism 2 makes λ4、λ3、λ2Thoroughly
It penetrates, λ1The film layer of reflection.Detector chip group 19 include respectively with λ1、λ2、λ3、λ4One-to-one four backlights in four channels are visited
Survey device chip.Collimator lens array 17 equally includes and λ1、λ2、λ3、λ4One-to-one four collimation lenses in four channels.Instead
Penetrating mirror 18 includes and λ1、λ2、λ3、λ4One-to-one four reflector plates in four channels.
Four road optical signals reach the second collimation lens 14 after the input of the second optical port contact pin 21, are collimated into quasi-parallel light and pass
It is defeated, the second deflecting prism 15 is reached later, and the second deflecting prism 15 transfers optical path to after suitable distance in a manner of translating
It is exported from the second deflecting prism 15, reaches the first working face 201 of prism 2 later, subsequently into prism 2, reach the of prism 2
Two working faces 202 are totally reflected, and later with 2 α corner reflections, reflection direction is towards filter set 3.
λ1Light wave is by reaching third working face 203 after the second working face 202 reflection of prism 2, due to third working face 203
Film plating layer is to λ1Reflection, therefore λ1With 2 α corner reflections, enter glass blocks 1 later, reaches the vertical right-angle surface 102 of glass blocks 1, thoroughly
It crosses after the vertical right-angle surface 102 of glass blocks 1 and reaches and λ1The corresponding reflector plate of light wave, desirable 40 ° -50 ° of the angle of reflector plate
Range, preferably 45° angle, therefore λ1Light wave is vertically reflected towards collimator lens array 17, and collimator lens array 17 can be saturating for silicon
Mirror can also be glass mould lens, and light wave is assembled imaging point and received by detector chipset 19 by collimator lens array 17, pass through light
Electrical effect is converted to electric current and is exported by the second electrical interface 20.
λ2Light wave is by reaching third working face 203 after the second working face 202 reflection of prism 2, due to third working face 203
Film plating layer is to λ2Transmission, light wave enters optical filter 3 303 later, the working face of optical filter 3 303 is reached later, due to optical filter
3 303 working face film plating layer is to λ2Reflection, therefore λ2With 2 α corner reflections, enter glass blocks 1 later, reaches glass blocks 1 later
Vertical right-angle surface 102, through arrival and λ after the vertical right-angle surface 102 of glass blocks 12The corresponding reflector plate of light wave, is vertically reflected
Towards collimator lens array 17, collimator lens array 17 can be that silicon lens is also glass mould lens, and collimator lens array 17 will
Light wave is assembled imaging point and is received by detector chipset 19, is converted to electric current by photoelectric effect and is exported by the second electrical interface 20.
λ3Light wave is by reaching third working face 203 after the second working face 202 reflection of prism 2, due to third working face 203
Film plating layer is to λ2Transmission, light wave enters optical filter 3 303 later, the working face of optical filter 3 303 is reached later, due to optical filter
3 303 working face film plating layer is to λ3Transmission, light wave enters optical filter 2 302 later, reaches the work of optical filter 2 302 later
Face, since the working face film plating layer of optical filter 2 302 is to λ3Reflection, therefore λ3With 2 α corner reflections, enter glass blocks 1 later, reaches
The vertical right-angle surface 102 of glass blocks 1, through arrival and λ after the vertical right-angle surface 102 of glass blocks 13The corresponding reflector plate of light wave,
It is vertically reflected towards collimator lens array 17, collimator lens array 17 can be that silicon lens is also glass mould lens, and collimation is saturating
Light wave is assembled imaging point and received by detector chipset 19 by lens array 17, is converted to electric current by photoelectric effect and is connect by the second electricity
Mouth 20 exports.
λ4Light wave is by reaching third working face 203 after the second working face 202 reflection of prism 2, due to third working face 203
Film plating layer is to λ2Transmission, light wave enters optical filter 3 303 later, the working face of optical filter 3 303 is reached later, due to optical filter
3 303 working face film plating layer is to λ4Transmission, light wave enters optical filter 2 302 later, reaches the work of optical filter 2 302 later
Face, since the working face film plating layer of optical filter 2 302 is to λ4Transmission, light wave enters optical filter 1 later, reaches filter later
The working face of piece 1, since the working face film plating layer of optical filter 1 is to λ4Reflection, therefore λ4With 2 α corner reflections, it is laggard
Enter glass blocks 1, reach the vertical right-angle surface 102 of glass blocks 1, through arrival and λ after the vertical right-angle surface 102 of glass blocks 14Light wave
Corresponding reflector plate is vertically reflected towards collimator lens array 17, and collimator lens array 17 can be that silicon lens is also glass
Light wave is assembled imaging point and received by detector chipset 19, is converted to by photoelectric effect by type lens, collimator lens array 17
Electric current is exported by the second electrical interface 20.
It transmitting optical device provided by the above embodiment and receives optical device and uses there is multi-channel parallel wavelength-division multiplex/demultiplex
With the spectrum groupware of function, the placement accuracy of optical filter is reduced, assembling process is simple, greatly reduces cost, and each channel
Optical signal coupling efficiency it is high, overcome existing transmitting optical device and receive that optical device volume is big, loss is big, encapsulation precision requires
The disadvantages of high, at high cost.
The foregoing examples are only illustrative of the present invention, does not constitute the limitation to protection scope of the present invention, all
It is within being all belonged to the scope of protection of the present invention with the same or similar design of the present invention.
Claims (10)
1. multi-channel parallel wavelength-division multiplex/demultiplexing spectrum groupware, it is characterised in that: including glass blocks, prism and filter set,
The filter set and prism are mounted on the one side of the glass blocks, and the filter set includes multiple optical filters, this is more
A optical filter is successively mounted on the side of glass blocks, and arrangement, the work of the optical filter are bonded between two neighboring optical filter
The film layer for reflecting or passing through for corresponding wavelength optical signal is coated with as face, the prism has the first work for light input/output
Make face, the second working face for being totally reflected input light and for light output/input third working face, first work
Angle between face and the second working face is equal to the central task angle [alpha] of optical filter, second working face and third working face
In parallel, the third working face fits with the filter set.
2. multi-channel parallel wavelength-division multiplex/demultiplexing spectrum groupware as described in claim 1, it is characterised in that: the glass
Block is triangular structure, including level right angle face, vertical right-angle surface and inclined-plane, the angle between the inclined-plane and level right angle face
Vertical right-angle surface for 2 α, the glass blocks is equipped with anti-reflection film；The filter set and prism are mounted on inclined-plane, and along oblique
The inclined direction in face is sequentially arranged from bottom to up.
3. multi-channel parallel wavelength-division multiplex/demultiplexing spectrum groupware as described in claim 1, it is characterised in that: the glass
Block, prism and filter set use identical glass material.
4. multi-channel parallel wavelength-division multiplex/demultiplexing spectrum groupware as described in claim 1, it is characterised in that: the optical filtering
Piece is parallelogram prism structure, and the acute angle between its adjacent plane is (90 ° of-α).
5. multi-channel parallel wavelength-division multiplex/demultiplexing spectrum groupware as claimed in claim 4, it is characterised in that: the optical filtering
The central task angle [alpha] of piece is 8o, 12o or 13.5o.
6. multi-channel parallel wavelength-division multiplex/demultiplexing spectrum groupware as described in claim 1, it is characterised in that: the film layer
For with anti-film, high pass film or low pass film.
7. using the transmitting optical device of spectrum groupware as described in any one of claims 1 to 6, it is characterised in that: including first
Shell, and it is separately positioned on first electrical interface and the first optical port contact pin at the first shell both ends, in first shell successively
It is disposed with back light detector chipset, chip of laser group, collimation lens set, spectrum groupware, isolator and the first deflecting prism,
The back light detector chipset setting is in first electrical interface one end, the collimation lens set output end and the spectrum groupware
Glass blocks linking, the output end of the prism of the spectrum groupware are connected with the isolator, the output of first deflecting prism
End is connected by the first collimation lens with the first optical port contact pin.
8. transmitting optical device as claimed in claim 7, it is characterised in that: between the chip of laser group and collimation lens set
Convergent lens group is set.
9. transmitting optical device as claimed in claim 7 or 8, it is characterised in that: the isolator is magneto-optical isolator, and its
Internal magneto-optical crystal is in 4~10 degree of overturning angle settings.
10. using the reception optical device of spectrum groupware as described in any one of claims 1 to 6, it is characterised in that: including second
Shell, and it is separately positioned on second electrical interface and the second optical port contact pin at the second shell both ends, arrangement in second shell
There are detector chip group, collimator lens array, reflecting mirror, spectrum groupware and the second deflecting prism, the detector chip group, standard
Collimating lens array and reflecting mirror successively interval setting from the bottom to top, and detector chip group is connected with second electrical interface, institute
It states reflecting mirror input terminal to be connected with the glass blocks of the spectrum groupware, the input terminal of the prism of the spectrum groupware and described second
The input terminal of deflecting prism linking, second deflecting prism is connected by the second collimation lens with the second optical port contact pin.
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| CN110806624A (en) * | 2019-11-26 | 2020-02-18 | 杭州芯耘光电科技有限公司 | Multichannel high-speed communication optical device |
| CN111308619A (en) * | 2020-01-20 | 2020-06-19 | 武汉联特科技有限公司 | Light emitting device and coupling method thereof |
| CN112213823A (en) * | 2020-10-29 | 2021-01-12 | 苏州伽蓝致远电子科技股份有限公司 | Optical integrated assembly |
| CN113726470A (en) * | 2020-05-20 | 2021-11-30 | 北京见合八方科技发展有限公司 | LWDM technology-based mobile forwarding method and system |
| CN116155383A (en) * | 2023-01-13 | 2023-05-23 | 讯芸电子科技(中山)有限公司 | Single-fiber multi-task transmission system |
| WO2023246297A1 (en) * | 2022-06-21 | 2023-12-28 | 成都旭创科技有限公司 | Optical transceiving assembly |
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