CN107678090A - A kind of package assembly of more laser optic assemblies suitable for WDM - Google Patents
A kind of package assembly of more laser optic assemblies suitable for WDM Download PDFInfo
- Publication number
- CN107678090A CN107678090A CN201711118697.2A CN201711118697A CN107678090A CN 107678090 A CN107678090 A CN 107678090A CN 201711118697 A CN201711118697 A CN 201711118697A CN 107678090 A CN107678090 A CN 107678090A
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- Prior art keywords
- laser
- sleeve
- optic assemblies
- optical
- wdm
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Classifications
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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
- G02B6/10—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings of the optical waveguide type
- G02B6/12—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings of the optical waveguide type of the integrated circuit kind
- G02B6/12007—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings of the optical waveguide type of the integrated circuit kind forming wavelength selective elements, e.g. multiplexer, demultiplexer
- G02B6/12009—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings of the optical waveguide type of the integrated circuit kind forming wavelength selective elements, e.g. multiplexer, demultiplexer comprising arrayed waveguide grating [AWG] devices, i.e. with a phased array of waveguides
- G02B6/12019—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings of the optical waveguide type of the integrated circuit kind forming wavelength selective elements, e.g. multiplexer, demultiplexer comprising arrayed waveguide grating [AWG] devices, i.e. with a phased array of waveguides characterised by the optical interconnection to or from the AWG devices, e.g. integration or coupling with lasers or photodiodes
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01S—DEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL
- H01S3/00—Lasers, i.e. devices using stimulated emission of electromagnetic radiation in the infrared, visible or ultraviolet wave range
- H01S3/23—Arrangements of two or more lasers not provided for in groups H01S3/02 - H01S3/22, e.g. tandem arrangements of separate active media
- H01S3/2383—Parallel arrangements
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01S—DEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL
- H01S5/00—Semiconductor lasers
- H01S5/06—Arrangements for controlling the laser output parameters, e.g. by operating on the active medium
- H01S5/062—Arrangements for controlling the laser output parameters, e.g. by operating on the active medium by varying the potential of the electrodes
- H01S5/0625—Arrangements for controlling the laser output parameters, e.g. by operating on the active medium by varying the potential of the electrodes in multi-section lasers
- H01S5/06255—Controlling the frequency of the radiation
- H01S5/06258—Controlling the frequency of the radiation with DFB-structure
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01S—DEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL
- H01S5/00—Semiconductor lasers
- H01S5/20—Structure or shape of the semiconductor body to guide the optical wave ; Confining structures perpendicular to the optical axis, e.g. index or gain guiding, stripe geometry, broad area lasers, gain tailoring, transverse or lateral reflectors, special cladding structures, MQW barrier reflection layers
- H01S5/22—Structure or shape of the semiconductor body to guide the optical wave ; Confining structures perpendicular to the optical axis, e.g. index or gain guiding, stripe geometry, broad area lasers, gain tailoring, transverse or lateral reflectors, special cladding structures, MQW barrier reflection layers having a ridge or stripe structure
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01S—DEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL
- H01S5/00—Semiconductor lasers
- H01S5/40—Arrangement of two or more semiconductor lasers, not provided for in groups H01S5/02 - H01S5/30
- H01S5/4025—Array arrangements, e.g. constituted by discrete laser diodes or laser bar
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01S—DEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL
- H01S5/00—Semiconductor lasers
- H01S5/40—Arrangement of two or more semiconductor lasers, not provided for in groups H01S5/02 - H01S5/30
- H01S5/4025—Array arrangements, e.g. constituted by discrete laser diodes or laser bar
- H01S5/4031—Edge-emitting structures
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- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Optics & Photonics (AREA)
- General Physics & Mathematics (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- Engineering & Computer Science (AREA)
- Geometry (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Plasma & Fusion (AREA)
- Optical Couplings Of Light Guides (AREA)
Abstract
A kind of package assembly of more laser optic assemblies suitable for WDM, it includes a shell, one optical fiber component set in the housing, a wavelength division multiplexer set in the housing, and first laser optical module and second laser optical module in the housing is set.The shell includes first sleeve, a second sleeve, a 3rd sleeve, a 4th sleeve, and a 5th sleeve.The emergent light and optical axis of the first laser optical module and the center overlapping of axles of the second sleeve, the emergent light and optical axis of the second laser optical module and the central axis of the second sleeve.This is advantageous to by two laser optic assemblies entirely a package assembly suitable for the package assembly of WDM more laser optic assemblies, and each laser optic assemblies includes two laser generators, so as to which the laser of multi-wavelength is combined.
Description
Technical field
The present invention relates to optical communication field, particularly a kind of more laser optics suitable for WDM for high speed optical communication
The package assembly of component.
Background technology
With widely used, the current optic network ratio of smart mobile phone, high-definition television and other bandwidth optical signals
Ever is all with greater need for the rapid growth for adapting to optic communication speed.In numerous selections, it is using more optical fiber
One of wherein simplest method, however, this method will need to install more extra optical fiber and hardware facility, this will necessarily
Cause cost to increase considerably and need bigger installing space, this is clearly inappropriate.Another selection is to improve list
The transmission speed of carrier wave.However, this method will be related to the HardwareUpgring of costliness, and face more technological challenges, at present this
Kind technology is also not possess industrialization production.The third method is by the Signal averaging of more different wave lengths to existing fiber
On, this method need not install new optical fiber, it is not required that carry out small hardware modifications, installation that more need not be bigger is empty
Between.Therefore, it is more economical and quick solution, and expands the main path of existing network dilatation at present.In order to incite somebody to action
Multiple wavelength signals are input in single optical fiber, and the laser of different wave length must be encapsulated in together, and be combined into single
Optical fiber.Therefore, it is a kind of to be used to the optical module that multi wave length illuminating source is added on existing fiber and cost is lower turn into its pass
Key technology.
There is different technologies that the laser of a variety of different wave lengths can be superimposed, one of which is single-chip integration electricity
Road, it includes the multiple lasing light emitters integrated with wavelength division multiplexing (WDM) component, for example, it is special by inventor's pa,
United States Patent (USP) US6,434,175 patents disclosed in Zah etc. and Joyner et al. No. US7,058,246 institute of United States Patent (USP) are public
The technology opened.In most cases, formation wave length grating (AWG) is used as WDM components, and laser generator and formation wavelength light
Grid are arranged in same wafer.This design closely, and is easy to pack.Drawback to this technique is that how same
Multiple components are built on one chip.Swash with big wavelength and the active of passive AWG in particular for structure on the same wafer more
During light device, its technology is difficult to reach.Therefore, above-mentioned technology is mainly used in the shorter dense wavelength division of wavelength and cuts multiplexing (DWDM).It is right
Mixed method is then used in the multiple laser with big span lengths.In hybrid integrated, encapsulation must be realized in chip-scale, this
It is and extremely complex, it is necessary to complicated truing tool.Therefore, one kind must be provided by having
The content of the invention
In view of this, it is necessary to provide a kind of more laser optic assemblies suitable for WDM suitable for wafer-level package
Package assembly, to meet the demand.
The package assembly of more laser optic assemblies suitable for WDM includes a shell, and one is arranged on outside described
Optical fiber component in shell, one sets wavelength division multiplexer in the housing, and sets first swashing in the housing
Light optical module and second laser optical module.The shell includes first sleeve, one connected with first sleeve and
Coaxial second sleeve, one connects and coaxial 3rd sleeve with the second sleeve, one connected with the second sleeve and
The 4th sleeve of central axis, and one connect cylinder and coaxial 5th sleeve with the 4th sleeve.The optical fiber component is set
Put in first sleeve and including an optical fiber sleeve, and at least one axially arranged light along the optical fiber sleeve
It is fine.The wavelength division multiplexer is arranged in the second sleeve, and has first plane of incidence and second plane of incidence, institute
It is 45 degree to state the angle between first plane of incidence and the central shaft of the second sleeve, second plane of incidence with described 4th set
Angle between the central shaft of cylinder is 45 degree.First, second laser optic assemblies be separately positioned on the 3rd sleeve with
In 5th sleeve and there is identical structure.First, second laser optic assemblies include a pedestal, a setting respectively
First laser device on the pedestal, a second laser being arranged on the pedestal, and one be arranged on it is described
Optical polarization beam combiner on pedestal.The pedestal includes a body, and one opens up on the body and for setting institute
State the first receiving cartridge of second laser, one opens up on the body and for setting the of the optical polarization beam combiner
Two receiving cartridges, and a mounting table for being used to set the first laser device.First receiving cartridge houses with described second
Cylinder is coaxially disposed.The mounting table includes the table top of a central shaft for extending perpendicularly to second receiving cartridge, and
One inclined-plane being connected with the table top.The table top along the optical fiber set to axial thickness be less than second receiving cartridge
Axial length, and the free side of the table top overlaps with the side wall of second receiving cartridge, the inclined-plane and the angle of the table top
It is arranged at intervals for obtuse angle and with second receiving cartridge.The first laser device include one be arranged on the table top first
Laser generator, first monitor photo-diode being arranged on the inclined-plane, and a sheet for passing through the pedestal
First conductor of body.The central axis of the light that the first laser generator is launched and second receiving cartridge.It is described
Second laser includes a substrate being housed in first receiving cartridge, a second laser set on the substrate
Generator, and one and spaced second monitor photo-diode of the second laser generator.The second laser
Light that the light that generator is launched is launched perpendicular to the first laser generator and with second receiving cartridge
Mandrel overlaps.Second monitor photo-diode is set on the substrate, and the optical polarization beam combiner is arranged on described
In second receiving cartridge, the reflecting surface of the optical polarization beam combiner is used for the emergent light for receiving the first laser generator.Institute
The plane of incidence for stating optical polarization beam combiner is used for the emergent light for receiving the second laser generator.The collimator lens assembly bag
A collimation lens is included, the collimation lens includes an optical axis.The emergent light and optical axis of the first laser optical module and institute
State the center overlapping of axles of second sleeve, the emergent light and optical axis of the second laser optical module and the center of the second sleeve
Axle is vertical.
Further, the wavelength of emergent light of the first laser optical module and going out for the second laser optical module
The wavelength for penetrating light is equal.
Further, the wavelength of emergent light of the first laser optical module and going out for the second laser optical module
Penetrate the wavelength of light.
Further, the intersection of the second sleeve and the 4th sleeve is provided with a right angled triangle portion, institute
State wavelength division multiplexer to be arranged on the hypotenuse in the right angled triangle portion, between the central shaft of the hypotenuse and the second sleeve
Angle be 45 degree.
Further, the collimator lens assembly includes a lens mounting seat, and the collimation lens is arranged on described
In mirror mounting seat.
Further, the center overlapping of axles of the bearing of trend of the optical fiber and the optical fiber sleeve.
Further, it is saturating only to include a collimation respectively for the collimator lens assembly of first, second laser optic assemblies
Mirror, the collimation lens of the collimator lens assembly of the first laser optical module are arranged in the second sleeve, and described second
The collimation lens of the collimator lens assembly of laser optic assemblies is arranged in the 4th sleeve.
Further, the ripple of the wavelength of the emergent light of the first laser generator and the emergent light of second laser generator
Length is identical or different.
Compared with prior art, the package assembly of more laser optic assemblies provided by the invention suitable for WDM is advantageous to
By two laser optic assemblies entirely in a package assembly, and each laser optic assemblies includes two laser and occurred
Device, so as to which the laser of multi-wavelength is combined.Simultaneously by the design of the shell, each parts are made more to hold
Easily positioning so that the placed angle of wavelength division multiplexer is more accurate, helps to reduce the placement difficulty of wavelength division multiplexer.In addition,
Due to, for setting first, second laser and the pedestal of optical polarization beam combiner, also causing whole with described
The package assembly of the laser optic assemblies is compact simple, so as to advantageously reduce cost, suitable for smaller container, improves it
Versatility.
Brief description of the drawings
Fig. 1 is the structural representation of the package assembly of more laser optic assemblies provided by the invention suitable for WDM.
Embodiment
The specific embodiment of the present invention is further elaborated below.It should be appreciated that herein to the present invention
The protection domain that the explanation of embodiment is not intended to limit the present invention.
As shown in figure 1, its knot for a kind of package assembly of more laser optic assemblies suitable for WDM provided by the invention
Structure schematic diagram.The package assembly of more laser optic assemblies suitable for WDM includes a shell 10, one be arranged on it is described
Optical fiber component 20 in shell 10, first laser optical module 30 (a) being arranged in the shell 10 and one second
Laser optic assemblies 30 (b), a wavelength division multiplexer 40 being arranged in the shell 10.It is envisioned that described be applicable
Also include some other functional structures in the package assembly of WDM more laser optic assemblies, such as power supply, wire, mounting assembly,
Control assembly etc., it is the technology known by those skilled in the art, is no longer described in detail one by one herein.
The shell 10 can be a tubular, can also square, its shape phase possessed by with position to be mounted
Adapt to, but the shell 10 can must house first the laser optic assemblies 30 (a) of optical fiber component 20 and first, second,
30 (b) and wavelength division multiplexer 40 is defined.The shell 10 can be made of plastics, and can also be made of metal.In the present embodiment
In, the shell 10 is a plastic cylinder shape structure, and including first sleeve 11, one connects with first sleeve 11
And coaxial second sleeve 12, one connects and coaxial 3rd sleeve 13 with the second sleeve 12, one with described second set
Cylinder 12 connects and the 4th sleeve 14 of central axis, and one connects cylinder and coaxial 5th sleeve with the 4th sleeve 14
15.The concrete structure of first, second, third through hole 11,12,13 and effect can below in connection with the optical fiber component 20,
Laser module 30 and collimator lens assembly 40 describe in detail together.The friendship of the second sleeve 12 and the 4th sleeve 14
A right angled triangle portion 121 is provided with boundary, the wavelength division multiplexer 40 is arranged on the hypotenuse in the right angled triangle portion 121
On, the angle between the central shaft of the hypotenuse and the second sleeve 12 is 45 degree.
The optical fiber component 20 includes an optical fiber sleeve 21, and at least one axial direction along the optical fiber sleeve 21 is set
The optical fiber 22 put.The optical fiber sleeve 21 is arranged in first sleeve 11, therefore the external diameter of the optical fiber sleeve 21 and institute
The internal diameter for stating the first sleeve 11 is suitable.In order to fix the relative position of the sleeve 11 of optical fiber sleeve 21 and first, in the light
The viscose glues such as epoxy resin can be coated to fix between the fine sleeve 11 of sleeve 21 and first.When the optical fiber sleeve 21 with it is described outer
When shell 10 is made up of metal material, it can also be fixed by welding manner.The axial length of the optical fiber sleeve 21 can be with institute
It is equal to state the axial length of the first sleeve 11, can also be unequal.In order to adapt to the transmission of light, the court of the optical fiber sleeve 21
There is an inclined-plane to the side of the inside of the shell 10.
First, second laser optic assemblies 30 (a), 30 (b) have identical structure, therefore, herein only to wherein
Its structure and working principle is described in detail in one first laser optical module 30 (a).The first laser optical module 30
(a) pedestal 31 is included, a first laser device 32 being arranged on the pedestal 31, one is arranged on the pedestal 31
Second laser 33, an optical polarization beam combiner 34 being arranged on the pedestal 31, and one be arranged on the base
Collimator lens assembly 35 on seat 31.It is envisioned that the laser module 30 also includes some other functional units, such as
Wire, connecting element, power supply module etc., are no longer described in detail one by one herein.
The pedestal 31 includes a body 311, and one is opened on the body 311 and for setting described second to swash
First receiving cartridge 312 of light device 33, one is opened on the body 311 and for setting the optical polarization beam combiner 34
Second receiving cartridge 313, and a mounting table 314 for being used to set the first laser device 32.The body 311 can be by moulding
Material or metal are made.In the present embodiment, in order to reduce cost and improve insulating properties, the body 311 by plastic injection and
Into.The overall body 311 can be a cylinder, and each functional structure is then opened up on the cylinder.The pedestal 31
It is housed in the 3rd sleeve 13, it can also be fixed by viscose glues such as epoxy resin.It will, of course, be appreciated that its
It can be fixed by welding manner.First receiving cartridge 312 is coaxially disposed with the second receiving cartridge 313, while also with described
One through hole 11 is coaxial.The structure of first, second receiving cartridge 312,313 and effect can be below along with the second lasers 33
And optical polarization beam combiner 34 illustrates together.The mounting table 314 is used to place the first laser device 32 and including one
The table top 3141 of the individual central shaft for extending perpendicularly to second receiving cartridge 313, and one be connected with the table top 3141
Inclined-plane 3142.Axial thickness of the table top 3141 along the optical fiber sleeve 21 is less than the axle of second receiving cartridge 313
To length, and the free side of the table top 3141 overlaps with the side wall of second receiving cartridge 313.The inclined-plane 342 with described
The angle in face 3141 is obtuse angle and is arranged at intervals with second receiving cartridge 313.
The first laser device 32 includes a first laser generator 321 being arranged on the table top 3141, one
The first monitor photo-diode 322 for being arranged on the inclined-plane 3142, and a body 311 through the pedestal 31
First conductor 323.The first laser generator 321 can be a semiconductor laser.It is well known that semiconductor swashs
Light device is also referred to as semiconductor laser diode, or abbreviation laser diode (Laser Diode, LD).Semiconductor laser be with
Certain semi-conducting material works material and produces the device of stimulated emission effect, and its operation principle is by certain excitation
Mode, between the energy band (conduction band and valence band) of semiconductor substance, or (acceptor applies the energy band of semiconductor substance with impurity
It is main) between energy level, the population inversion of nonequilibrium carrier is realized, when in a large amount of electronics of population inversion state and hole
Compound tense, just produce stimulated emission effect.The first laser generator 321 is a kind of prior art and is people in the art
Known by member, it will not be repeated here.The light that the first laser generator 321 is launched is perpendicular to second receiving cartridge
313 central shaft, its principle can be specifically described below.First monitor photo-diode 322 is used for by monitoring
State the performance of first laser generator and adjust power output in real time to realize the optimum performance of product and output.In practical application
It is to control the light of first laser generator 321 by the electric current and regulation temperature and power source change of monitor photodiode to be
Learn performance.The structure and working principle of itself of first monitor photo-diode 322 should be those skilled in the art and practised
Know, will not be repeated here.First monitor photo-diode 322 be arranged on the inclined-plane 3142 and with the first laser
Generator 321 is electrically connected with.First monitor photo-diode 322 contributes into one due to being arranged on the inclined-plane 3142
Step reduces the structure of the first laser device 32, because the first laser generator 321 and first monitors light under normal circumstances
Electric diode 322 is provided in a plane.First conductor 323 through the pedestal 31 body 311 with it is outer
Boundary's power supply (not shown) is electrically connected with, to obtain electric power.
The second laser 33 has essentially identical electronic component with the first laser device 32, i.e., including one
The substrate 331 being housed in first receiving cartridge 312, a second laser generator being arranged on the substrate 331
332, and one and spaced second monitor photo-diode 333 of the second laser generator 332, and a use
The second conductor 334 of electric power is provided in the monitor photo-diode 333 of second laser generator 332 and second.The substrate
331 have the shape essentially identical with first receiving cartridge 312, allow it to be contained in first receiving cartridge 312.Institute
Stating substrate 331 can be come be bonded with the connection method of a receiving cartridge 312 using viscose glues such as epoxy resin, can also pass through weldering
The methods of connecing is fixedly connected.The monitor photo-diode 333 of second laser generator 332 and second has and the laser
The identical structure and working principle of 321 and first monitor photo-diode of generator 322, will not be repeated here.Described second swashs
The monitor photo-diode 333 of optical generator 332 and second is all arranged on the substrate 331.The second laser generator 332
Light that the light launched is launched perpendicular to the first laser generator 321 and with second receiving cartridge 313
Mandrel overlaps.Second conductor 334 electrically connects with the second laser generator 332 and the second monitor photo-diode 333
Connect, to provide electric power for the second laser 33.
Shared as shown in figure 1, the first laser component 30 (a) also includes first, second laser 32,33
Power circuit conductor 36.The return conductors 36 form an electric power together with the conductor 334 of the first conductor 323 and second and returned
Road, so as to form a complete circuit.
The optical polarization beam combiner 34 is arranged in second receiving cartridge 313.It is well known that light beam group
The function of clutch 34 is that the orthogonal linearly polarized light synthesis in two beam polarization directions is a branch of, and its structure and working principle is this area skill
Known by art personnel, no longer describe in detail herein.The optical polarization beam combiner 34 includes a reflecting surface 341 and an incidence
Face 342.The reflecting surface 341 is used for the emergent light for receiving the first laser generator 321, and reflects the P polarization light, described
The plane of incidence 342 is used for the emergent light for receiving the second laser generator 332, and passes through the S-polarization light.Therefore described first swashs
Optical generator 321 launches P polarization light, and second laser generator 332 launches S-polarization light.The P polarization light and S-polarization light pass through
Beam of laser will be synthesized after the optical polarization beam combiner 34.In order that the laser synthesized by the optical polarization beam combiner 34
Into the optical fiber component 20, the center overlapping of axles of the emergent light of the optical polarization beam combiner 34 and the optical fiber sleeve 21.
It is envisioned that the wavelength of the emergent light of the first laser generator 321 and the emergent light of second laser generator 332
Wavelength is identical or different, and a laser will be all synthesized by the optical polarization beam combiner 34.The outgoing of the laser module 30
Light is to synthesize emergent light for the laser caused by first, second laser generator 321,332, and in order to reach fusion
In the optical fiber component 20, the emergent light of the laser module 30 and the center overlapping of axles of the 3rd sleeve 13.
The collimator lens assembly 35 is a branch of substantially flat for the emergent light of the optical polarization beam combiner 34 to be converted to
Row light beam, in favor of importeding into the optical fiber 22 of the optical fiber component 20.The collimator lens assembly 35 includes a lens and pacified
Fill seat 351, a collimation lens 352 being arranged in the lens mounting seat.The lens mounting seat 351 can be arranged on institute
State in 3rd sleeve 13 with so that the collimation lens 352 is contained in second sleeve 12.In the present embodiment, the lens installation
Seat 351 is set directly on the pedestal 31, and collimation lens 352 is contained in second sleeve 12.The collimation lens 352 can
Think a planoconvex spotlight, and including an optical axis 353.The optical axis 353 and the center overlapping of axles of the second sleeve 12, to have
It is imported into beneficial to by the emergent light of the collimation lens 42 in the optical fiber 22 of the optical fiber component 20.It is envisioned that described
First, second laser optical module 30 (a), 30 (b) only include a collimation lens 352, the first laser optical module respectively
The collimation lens 352 of the collimator lens assembly 35 of 30 (a) is arranged in the second sleeve 12, the second laser optical module
The collimation lens 352 of the collimator lens assembly 35 of 31 (b) is arranged in the 4th sleeve 14.
The optical axis 353 of the collimation lens 352 of the first laser optical module 30 (a) and the center of the second sleeve 12
Overlapping of axles, and the optical axis 353 of the collimation lens 352 of second laser optical module 30 (b) and the central shaft of the second sleeve 12
Vertically.The wavelength of the emergent light of the first laser optical module 30 (a) can be with the second laser optical module 30 (b)
The wavelength of emergent light is equal can also be unequal.
The wavelength division multiplexer 40 is arranged in the right angle trigonometry portion 121 of the second sleeve 12, and with one first
The plane of incidence 41 and second plane of incidence 42.Angle between first plane of incidence 41 and the central shaft of the second sleeve 12
For 45 degree, the angle between second plane of incidence 42 and the central shaft of the 4th sleeve 14 is 45 degree.It is well known that
The wavelength division multiplexer WDM40 (Wavelength Division Multiplexing) is by two or more different wave lengths
Optical carrier (carrying various information) merges together in transmitting terminal through multiplexer (also known as wave multiplexer, Multiplexer), and
It is coupled to the technology being transmitted in the same root optical fiber of optical link.And in receiving terminal, demultiplexed device (also known as channel-splitting filter or
Demultiplexer, Demultiplexer) light carrier of various wavelength is separated, then by photoreceiver for further processing with extensive
Release signal.The technology of this simultaneous transmission in same root optical fiber two or numerous different wave length optical signals, referred to as wavelength-division are answered
With.For wavelength division multiplexer 40, it is very sensitive to beam incident angle, therefore, its method being fixedly installed, and incident light
Direction is all extremely important.
Compared with prior art, the package assembly of more laser optic assemblies provided by the invention suitable for WDM is advantageous to
By two laser optic assemblies entirely in a package assembly, and each laser optic assemblies includes two laser and occurred
Device, so as to which the laser of multi-wavelength is combined.Simultaneously by the design of the shell 10, make each parts more
Easily positioning so that the placed angle of wavelength division multiplexer is more accurate, helps to reduce the placement difficulty of wavelength division multiplexer.Separately
Outside, due to being used to set first, second laser 32,33 and the pedestal of optical polarization beam combiner 34 with described,
Also so that the package assembly of the whole laser optic assemblies is compact simple, so as to advantageously reduce cost, suitable for smaller appearance
In device, its versatility is improved.
Presently preferred embodiments of the present invention is these are only, is not used to limit to protection scope of the present invention, it is any in the present invention
Modification, equivalent substitution or improvement in spirit etc., all cover in scope of the presently claimed invention.
Claims (8)
- A kind of 1. package assembly of more laser optic assemblies suitable for WDM, it is characterised in that：The swashing more suitable for WDM The package assembly of light optical module includes a shell, and an optical fiber component set in the housing, one is arranged on institute The wavelength division multiplexer in shell is stated, and first laser optical module in the housing and second laser optics group are set Part, the shell include first sleeve, and one connects and coaxial second sleeve with first sleeve, one with this second Sleeve connects and coaxial 3rd sleeve, and one connects and the 4th sleeve of central axis with the second sleeve, Yi Jiyi Individual to connect cylinder and coaxial 5th sleeve with the 4th sleeve, the optical fiber component is arranged in first sleeve and including one Optical fiber sleeve, and at least one axially arranged optical fiber along the optical fiber sleeve, the wavelength division multiplexer are arranged on described In second sleeve, and there is first plane of incidence and second plane of incidence, first plane of incidence and the second sleeve Central shaft between angle be 45 degree, the angle between second plane of incidence and the central shaft of the 4th sleeve is 45 Degree, first, second laser optic assemblies are separately positioned in the 3rd sleeve and 5th sleeve and have identical knot Structure, first, second laser optic assemblies include a pedestal, a first laser being arranged on the pedestal respectively Device, a second laser being arranged on the pedestal, and an optical polarization beam combiner being arranged on the pedestal, The pedestal includes a body, and one opens up on the body and for setting the first of the second laser to house Cylinder, one opens up on the body and is used for the second receiving cartridge for setting the optical polarization beam combiner, and one is used for The mounting table of the first laser device is set, and first receiving cartridge is coaxially disposed with second receiving cartridge, the mounting table Include the table top of a central shaft for extending perpendicularly to second receiving cartridge, and one be connected with the table top it is oblique Face, the table top along the optical fiber set to axial thickness be less than the axial length of second receiving cartridge, and the table top Free side overlaps with the side wall of second receiving cartridge, and the angle of the inclined-plane and the table top is obtuse angle and received with described second Volumetric cylinder is arranged at intervals, and the first laser device includes a first laser generator being arranged on the table top, a setting The first monitor photo-diode on the inclined-plane, and first conductor through the body of the pedestal, described the The central axis of the light that one laser generator is launched and second receiving cartridge, the second laser include a receipts Hold the substrate in first receiving cartridge, a second laser generator set on the substrate, and one and institute Spaced second monitor photo-diode of second laser generator is stated, the light that the second laser generator is launched hangs down The light directly launched in the first laser generator and with the center overlapping of axles of second receiving cartridge, second monitoring Photodiode is set on the substrate, and the optical polarization beam combiner is arranged in second receiving cartridge, the polarization The reflecting surface of beam combiner is used for the emergent light for receiving the first laser generator, the incidence of the optical polarization beam combiner Face is used for the emergent light for receiving the second laser generator, and the collimator lens assembly includes a collimation lens, the collimation Lens include an optical axis, the emergent light and optical axis of the first laser optical module and the central shaft weight of the second sleeve Close, the emergent light and optical axis of the second laser optical module and the central axis of the second sleeve.
- 2. it is applied to the package assembly of WDM more laser optic assemblies as claimed in claim 1, it is characterised in that：Described The wavelength of the emergent light of one laser optic assemblies is equal with the wavelength of the emergent light of the second laser optical module.
- 3. it is applied to the package assembly of WDM more laser optic assemblies as claimed in claim 1, it is characterised in that：Described The wavelength of the wavelength of the emergent light of one laser optic assemblies and the emergent light of the second laser optical module.
- 4. it is characterized in that as claimed in claim 1 suitable for the package assembly of WDM more laser optic assemblies：Described second Sleeve and the intersection of the 4th sleeve are provided with a right angled triangle portion, and the wavelength division multiplexer is arranged on the right angle On the hypotenuse of triangular portion, the angle between the central shaft of the hypotenuse and the second sleeve is 45 degree.
- 5. it is applied to the package assembly of WDM more laser optic assemblies as claimed in claim 1, it is characterised in that：The standard Straight lens subassembly includes a lens mounting seat, and the collimation lens is arranged in the lens mounting seat.
- 6. it is applied to the package assembly of WDM more laser optic assemblies as claimed in claim 1, it is characterised in that：The light The center overlapping of axles of fine bearing of trend and the optical fiber sleeve.
- 7. it is applied to the package assembly of WDM more laser optic assemblies as claimed in claim 1, it is characterised in that：Described First, the collimator lens assembly of second laser optical module only includes a collimation lens, the first laser optical module respectively The collimation lens of collimator lens assembly be arranged in the second sleeve, the collimation lens set of the second laser optical module The collimation lens of part is arranged in the 4th sleeve.
- 8. it is applied to the package assembly of WDM more laser optic assemblies as claimed in claim 1, it is characterised in that：Described The wavelength of the wavelength of the emergent light of one laser generator and the emergent light of second laser generator is identical or different.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711118697.2A CN107678090A (en) | 2017-11-14 | 2017-11-14 | A kind of package assembly of more laser optic assemblies suitable for WDM |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711118697.2A CN107678090A (en) | 2017-11-14 | 2017-11-14 | A kind of package assembly of more laser optic assemblies suitable for WDM |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107678090A true CN107678090A (en) | 2018-02-09 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711118697.2A Withdrawn CN107678090A (en) | 2017-11-14 | 2017-11-14 | A kind of package assembly of more laser optic assemblies suitable for WDM |
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| Country | Link |
|---|---|
| CN (1) | CN107678090A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111952833A (en) * | 2020-07-15 | 2020-11-17 | 武汉云岭光电有限公司 | Multi-laser structure and high-speed small-sized transceiver |
-
2017
- 2017-11-14 CN CN201711118697.2A patent/CN107678090A/en not_active Withdrawn
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111952833A (en) * | 2020-07-15 | 2020-11-17 | 武汉云岭光电有限公司 | Multi-laser structure and high-speed small-sized transceiver |
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Application publication date: 20180209 |