CN208026909U - A kind of package assembly of more laser optic assemblies suitable for WDM - Google Patents

Abstract

A kind of package assembly of more laser optic assemblies suitable for WDM, it includes a shell, the optical fiber component of one setting in the housing, the wavelength division multiplexer of a setting in the housing, and first laser optical module in the housing and second laser optical module are set.The shell includes first sleeve, a second sleeve, a 3rd sleeve, a 4th sleeve and a 5th sleeve.The center overlapping of axles of the emergent light and optical axis and the second sleeve of the first laser optical module, the emergent light of the second laser optical module and the central axis of optical axis and the second sleeve.The package assembly of more laser optic assemblies suitable for WDM is conducive to two laser optic assemblies entirely a package assembly, and each laser optic assemblies includes two laser generators, so as to combine the laser of multi-wavelength.

Description

A kind of package assembly of more laser optic assemblies suitable for WDM

Technical field

The utility model is related to optical communication fields, are especially used for a kind of more laser suitable for WDM of high speed optical communication The package assembly of optical module.

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 rate.In numerous selections, it is using more optical fiber One of wherein simplest method, however, this method will need to install more additional optical fiber and hardware facility, this will necessarily Cause cost to increase considerably and need the installation space of bigger, this is clearly inappropriate.Another selection is to improve list The transmission speed of carrier wave.However, this method will be related to expensive HardwareUpgring, and face more technological challenges, at present this Kind technology is also not have 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, need not also carry out small hardware modifications, and the installation for not needing bigger more 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, one kind is used to multi wave length illuminating source being added on existing fiber and the lower optical module of cost will become 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, by utility model people The United States Patent (USP) US7 of United States Patent (USP) US6 disclosed in Pa Te, Zah etc., 434, No. 175 patents and Joyner et al., 058,246 Technology disclosed in number.In most cases, formation wave length grating (AWG) is used as WDM components, and laser generator and formation Wave length grating is arranged in same wafer.This design closely, and is convenient for packaging.Drawback to this technique is that such as What builds multiple components on the same wafer.In particular for structure having with big wavelength and passive AWG on the same wafer When the multi-laser of source, technology is difficult to reach.Therefore, above-mentioned technology is mainly used for the shorter dense wavelength division of wavelength and cuts multiplexing (DWDM).Mixed method is then used for the multiple laser with big span lengths.In hybrid integrated, encapsulation must be in chip Grade realizes that this is also extremely complex, needs complicated truing tool.Therefore, one kind must be provided by having

Utility model content

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 a setting is described outer Optical fiber component in shell, a setting wavelength division multiplexer in the housing, and setting first swashing in the housing Light optical module and second laser optical module.The shell include first sleeve, one be connected to first sleeve and Coaxial second sleeve, one is connected to and coaxial 3rd sleeve with the second sleeve, one be connected to 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 It sets in first sleeve and includes an optical fiber sleeve, and at least one light being axially arranged along the optical fiber sleeve It is fine.The wavelength division multiplexer is arranged in the second sleeve, and there are one first plane of incidence and second plane of incidence, institutes for tool 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 structure having the same.First, second laser optic assemblies respectively include a pedestal, a setting First laser device on the pedestal, a second laser being arranged on the pedestal and a setting are described Optical polarization beam combiner on pedestal.The pedestal includes an ontology, and one opens up on the body and for institute to be arranged State the first receiving cartridge of second laser, one opens up on the body and for the optical polarization beam combiner to be arranged Two receiving cartridges and a mounting table for the first laser device to be arranged.First receiving cartridge is accommodated with described second Cylinder coaxial arrangement.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 is overlapped with the side wall of second receiving cartridge, the angle on the inclined-plane and the table top It is arranged for obtuse angle and with second receiving cartridge interval.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 light and second receiving cartridge that the first laser generator is emitted.It is described Second laser includes a substrate being housed in first receiving cartridge, the second laser of a setting 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 emitted is emitted perpendicular to the first laser generator and in second receiving cartridge Mandrel overlaps.On the substrate, the optical polarization beam combiner is arranged described for the second monitor photo-diode setting In second receiving cartridge, the reflecting surface of the optical polarization beam combiner is used to receive the emergent light of the first laser generator.Institute The plane of incidence for stating optical polarization beam combiner is used to receive the emergent light of the second laser generator.The collimator lens assembly packet A collimation lens is included, which 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 of the second laser optical module and the center of optical axis and the second sleeve Axis 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 The wavelength for penetrating light differs.

Further, there are one right angled triangle portion, institutes for the setting of the intersection of the second sleeve and the 4th sleeve It states wavelength division multiplexer to be arranged on the bevel edge in the right angled triangle portion, between the bevel edge and the central shaft of the second sleeve Angle be 45 degree.

Further, the collimator lens assembly includes a lens mounting base, and the collimation lens is arranged described In mirror mounting base.

Further, the center overlapping of axles of the extending direction of the optical fiber and the optical fiber sleeve.

Further, the collimator lens assembly of first, second laser optic assemblies only includes that a collimation is saturating respectively The collimation lens of mirror, the collimator lens assembly of the first laser optical module is 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 wave of the emergent light of the wavelength and second laser generator of the emergent light of the first laser generator Length is identical or different.

Compared with prior art, the package assembly of more laser optic assemblies provided by the utility model suitable for WDM has Conducive to by two laser optic assemblies, entirely in a package assembly, and to include two laser send out each laser optic assemblies Raw device, so as to combine the laser of multi-wavelength.Simultaneously by the design of the shell, make each parts more It is easy positioning so that the placed angle of wavelength division multiplexer is more accurate, contributes to the placement difficulty for reducing wavelength division multiplexer.Separately Outside, due to described being used to that first, second laser and the pedestal of optical polarization beam combiner to be arranged, but also whole The package assembly of a laser optic assemblies is compact simple, to advantageously reduce cost, suitable for smaller container, improves Its versatility.

Description of the drawings

Fig. 1 is the structural schematic diagram of the package assembly of more laser optic assemblies provided by the utility model suitable for WDM.

Specific implementation mode

Specific embodiment of the utility model is further elaborated below.It should be understood that herein to this The explanation of utility model embodiment is not used to limit the scope of protection of the utility model.

As shown in Figure 1, it is a kind of package assembly of more laser optic assemblies suitable for WDM provided by the utility model Structural schematic diagram.The package assembly of more laser optic assemblies suitable for WDM includes a shell 10, and a setting exists Optical fiber component 20 in the shell 10, first laser optical module 30 (a) being arranged in the shell 10 and one Second laser optical module 30 (b), a wavelength division multiplexer 40 being arranged in the shell 10.It is envisioned that described The package assembly of more laser optic assemblies suitable for WDM further includes some other functional structures, such as power supply, conducting wire, installation Component, control assembly etc., which is a technique known to 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, with shape phase possessed by position to be mounted Adapt to, but the shell 10 can must accommodate first the optical fiber component 20 and the first, second laser optic assemblies 30 (a), Subject to 30 (b) and wavelength division multiplexer 40.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 includes first sleeve 11, and one is connected to first sleeve 11 And coaxial second sleeve 12, one is connected to and coaxial 3rd sleeve 13 with the second sleeve 12, one with described second set 12 connection of cylinder and the 4th sleeve 14 of central axis and one and the 4th sleeve 14 company's cylinder and coaxial 5th sleeve 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 are described in detail together.The friendship of the second sleeve 12 and the 4th sleeve 14 There are one right angled triangle portions 121, the wavelength division multiplexer 40, and the bevel edge in the right angled triangle portion 121 is arranged for setting at boundary On, the angle between the bevel edge and the central shaft of the second sleeve 12 is 45 degree.

The optical fiber component 20 is set including an optical fiber sleeve 21, and an at least axial direction along the optical fiber sleeve 21 The optical fiber 22 set.The optical fiber sleeve 21 is arranged in first sleeve 11, therefore the outer 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 optical fiber sleeve 21 and the first sleeve 11, in the light The viscose glues such as epoxy resin can be coated to fix between fine sleeve 21 and the first sleeve 11.When the optical fiber sleeve 21 with it is described outer When shell 10 is made of metal material, it can also be fixed by welding manner.The axial length of the optical fiber sleeve 21 can be with institute The axial length for stating the first sleeve 11 is equal, can not also be equal.In order to adapt to the transmission of light, the court of the optical fiber sleeve 21 To the side of the inside of the shell 10 tool, there are one inclined-planes.

First, second laser optic assemblies 30 (a), 30 (b) structure having the same, 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) include a pedestal 31, 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 are arranged in the base Collimator lens assembly 35 on seat 31.It is envisioned that the laser module 30 further includes some other functional units, such as Conducting wire, connecting element, power supply module etc. are no longer described in detail one by one herein.

The pedestal 31 includes an ontology 311, and one is opened on the ontology 311 and swashs for being arranged described second First receiving cartridge 312 of light device 33, one is opened on the ontology 311 and for the optical polarization beam combiner 34 to be arranged Second receiving cartridge 313 and a mounting table 314 for the first laser device 32 to be arranged.The ontology 311 can be by moulding Material or metal are made.In the present embodiment, in order to reduce cost and improve insulation performance, the ontology 311 by plastic injection and At.The whole ontology 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, can also be fixed by viscose glues such as epoxy resin.It will, of course, be appreciated that It can be fixed by welding manner.First receiving cartridge, 312 and second receiving cartridge 313 is coaxially disposed, while also with described the 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 for placing the first laser device 32 and including one The table top 3141 of a central shaft for extending perpendicularly to second receiving cartridge 313 and one are connected with the table top 3141 Inclined-plane 3142.The table top 3141 is less than the axis of second receiving cartridge 313 along the axial thickness of the optical fiber sleeve 21 To length, and the free side of the table top 3141 is overlapped 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 spaced setting with second receiving cartridge 313.

The first laser device 32 include a first laser generator 321 being arranged on the table top 3141, one The first monitor photo-diode 322 being arranged on the inclined-plane 3142 and one pass through the ontology 311 of 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 substance and generates the device of stimulated emission effect, and operation principle is by certain excitation Mode, between the energy band (conduction band and valence band) of semiconductor substance or the energy band of semiconductor substance (acceptor applies 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 generates stimulated emission effect.The first laser generator 321 is a kind of prior art and is people in the art Known by member, details are not described herein.The light that the first laser generator 321 is emitted is perpendicular to second receiving cartridge 313 central shaft, principle can be specifically described below.First monitor photo-diode 322 is used for by monitoring institute It states the performance of first laser generator and adjusts output power in real time to realize optimum performance and the output of product.In practical application It is to control the light of first laser generator 321 by the electric current and adjusting temperature and power source change of monitor photodiode to be Learn performance.First monitor photo-diode, 322 structure and working principle of itself should be those skilled in the art and is practised Know, details are not described herein.First monitor photo-diode 322 be arranged on the inclined-plane 3142 and with the first laser Generator 321 is electrically connected.First monitor photo-diode 322 contributes to due to being arranged on the inclined-plane 3142 into one Step reduces the structure of the first laser device 32, because the first laser generator 321 and first monitors light under normal conditions Electric diode 322 is provided in a plane.First conductor 323 pass through the pedestal 31 ontology 311 with it is outer Boundary's power supply (not shown) is electrically connected, to obtain electric power.

The second laser 33 has essentially identical electronic component with the first laser device 32, that is, includes one The substrate 331 being housed in first receiving cartridge 312, a second laser generator being arranged on the substrate 331 332 and one with 332 spaced second monitor photo-diode 333 of the second laser generator and a use The second conductor 334 of electric power is provided in 332 and second monitor photo-diode 333 of the second laser generator.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 It the methods of connects to be fixedly connected.332 and second monitor photo-diode 333 of the second laser generator has and the laser 322 identical structure and working principle of generator 321 and the first monitor photo-diode, details are not described herein.Described second swashs Optical generator 332 and the second monitor photo-diode 333 are all arranged on the substrate 331.The second laser generator 332 Light that the light emitted is emitted perpendicular to the first laser generator 321 and in second receiving cartridge 313 Mandrel overlaps.Second conductor 334 electrically connects with the second laser generator 332 and the second monitor photo-diode 333 It connects, to provide electric power for the second laser 33.

It is shared as shown in Figure 1, the first laser component 30 (a) further includes first, second laser 32,33 Power circuit conductor 36.The return conductors 36 form an electric power with first conductor, 323 and second conductor 334 and return together Road, 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 structure and working principle is this field skill Known by art personnel, no longer it is described 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 to receive the emergent light of the first laser generator 321, and reflects the P polarization light, described The plane of incidence 342 is used to receive the emergent light of the second laser generator 332, and passes through the S-polarization light.Therefore described first swashs Optical generator 321 emits P polarization light, and second laser generator 332 emits 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 to make 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 the emergent light that synthesizes for the laser caused by first, second laser generator 321,332, and in order to reach fusion In the optical fiber component 20, the center overlapping of axles of the emergent light of the laser module 30 and the 3rd sleeve 13.

The collimator lens assembly 35 is used to be converted to the emergent light of the optical polarization beam combiner 34 a branch of substantially flat Row light beam, in favor of importeding into the optical fiber 22 of the optical fiber component 20.The collimator lens assembly 35 includes that a lens are pacified Fill seat 351, a collimation lens 352 being arranged in the lens mounting base.The lens mounting base 351 can be arranged in institute It states in 3rd sleeve 13 so that the collimation lens 352 is accommodated in second sleeve 12.In the present embodiment, the lens installation Seat 351 is set up 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 includes an optical axis 353.The center overlapping of axles of the optical axis 353 and the second sleeve 12, to have It is imported into the optical fiber 22 of the optical fiber component 20 conducive to by the emergent light of the collimation lens 42.It is envisioned that described One, 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 center of the optical axis 353 and the second sleeve 12 of the collimation lens 352 of the first laser optical module 30 (a) Overlapping of axles, and the central shaft of the optical axis 353 and the second sleeve 12 of the collimation lens 352 of second laser optical module 30 (b) 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 not also be equal.

The wavelength division multiplexer 40 is arranged in the right angle trigonometry portion 121 of the second sleeve 12, and there are one first for tool 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 It it is 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) is merged 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 detached, 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 multiple With.It is for wavelength division multiplexer 40, very sensitive to beam incident angle, therefore, the method and incident light of fixed setting Direction is all extremely important.

Compared with prior art, the package assembly of more laser optic assemblies provided by the utility model suitable for WDM has Conducive to by two laser optic assemblies, entirely in a package assembly, and to include two laser send out each laser optic assemblies Raw device, so as to combine the laser of multi-wavelength.Simultaneously by the design of the shell 10, make each parts It more easily positions so that the placed angle of wavelength division multiplexer is more accurate, contributes to the placement difficulty for reducing wavelength division multiplexer.Separately Outside, due to described being used to that first, second laser 32,33 and the pedestal of optical polarization beam combiner 34 to be arranged, But also the package assembly of the entire laser optic assemblies is compact simple, to advantageously reduce cost, it is suitable for smaller appearance In device, its versatility is improved.

The preferred embodiment that these are only the utility model is not used to limitation the scope of protection of the utility model, any Modification, equivalent replacement or improvement within the spirit of the present invention etc. are all covered in the right of the utility model.

Claims (5)

1. a kind of package assembly of more laser optic assemblies suitable for WDM, it is characterised in that：More the swashing suitable for WDM The package assembly of light optical module includes a shell, and the optical fiber component of a setting in the housing, one is arranged in 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 is connected to and coaxial second sleeve with first sleeve, one and this second Sleeve is connected to and coaxial 3rd sleeve, and one is connected to and the 4th sleeve of central axis with the second sleeve, Yi Jiyi A to connect cylinder and coaxial 5th sleeve with the 4th sleeve, the intersection of the second sleeve and the 4th sleeve is provided with one A right angled triangle portion, the wavelength division multiplexer are arranged on the bevel edge in the right angled triangle portion, the optical fiber component setting In first sleeve and include an optical fiber sleeve, and at least one light being axially arranged along the optical fiber sleeve Fibre, the wavelength division multiplexer are arranged in the second sleeve, and there are one first plane of incidence and second plane of incidence, institutes for tool 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 Cylinder central shaft between angle be 45 degree, first, second laser optic assemblies be separately positioned on the 3rd sleeve with In 5th sleeve and structure having the same, first, second laser optic assemblies respectively include a pedestal, a setting First laser device on the pedestal, a second laser being arranged on the pedestal, one is arranged in the pedestal On optical polarization beam combiner and a collimator lens assembly being arranged on the pedestal, the pedestal include a sheet Body, first receiving cartridge for opening up on the body and being used to be arranged the second laser, one is opened in described The second receiving cartridge on body and for the optical polarization beam combiner to be arranged and one are for being arranged the first laser device Mounting table, first receiving cartridge are coaxially disposed with second receiving cartridge, and the mounting table includes that an extending direction is vertical In the table top and an inclined-plane being connected with the table top of the central shaft of second receiving cartridge, the table top is along the optical fiber Cover to axial thickness be less than the axial length of second receiving cartridge, and the free side of the table top and second receiving cartridge Side wall overlap, the angle of the inclined-plane and the table top is obtuse angle and is arranged with second receiving cartridge interval, described first Laser includes a first laser generator being arranged on the table top, first monitoring being arranged on the inclined-plane First conductor of photodiode and an ontology across the pedestal, the light that the first laser generator is emitted The central axis of line and second receiving cartridge, the second laser include one and are housed in first receiving cartridge Substrate, a setting second laser generator on the substrate and one set with second laser generator interval The second monitor photo-diode set, the light that the second laser generator is emitted is perpendicular to the first laser generator The light that is emitted and with the center overlapping of axles of second receiving cartridge, second monitor photo-diode is arranged in the base On plate, the optical polarization beam combiner is arranged in second receiving cartridge, and the reflecting surface of the optical polarization beam combiner is used for The emergent light of the first laser generator is received, the plane of incidence of the optical polarization beam combiner is for receiving the second laser The emergent light of generator, the collimator lens assembly include a collimation lens, which includes an optical axis, and described the The emergent light and optical axis of one laser optic assemblies and the center overlapping of axles of the second sleeve, the second laser optical module The central axis of emergent light and optical axis and the second sleeve, the wavelength of the emergent light of the first laser optical module and institute The wavelength for stating the emergent light of second laser optical module is equal.

2. as described in claim 1 suitable for WDM more laser optic assemblies package assembly it is characterized in that：The bevel edge Angle between the central shaft of the second sleeve is 45 degree.

3. the package assembly suitable for more laser optic assemblies of WDM as described in claim 1, it is characterised in that：The standard Straight lens subassembly includes a lens mounting base, and the collimation lens is arranged in the lens mounting base.

4. the package assembly suitable for more laser optic assemblies of WDM as described in claim 1, it is characterised in that：The light The center overlapping of axles of fine extending direction and the optical fiber sleeve.

5. the package assembly suitable for more laser optic assemblies of WDM as described in claim 1, it is characterised in that：Described One, the collimator lens assembly of second laser optical module only includes a collimation lens, the first laser optical module respectively Collimator lens assembly collimation lens 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.