CN207123626U - Coupled lens and laser optical system - Google Patents
Coupled lens and laser optical system Download PDFInfo
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- CN207123626U CN207123626U CN201721154767.5U CN201721154767U CN207123626U CN 207123626 U CN207123626 U CN 207123626U CN 201721154767 U CN201721154767 U CN 201721154767U CN 207123626 U CN207123626 U CN 207123626U
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- main part
- interarea
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- mounting surface
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Abstract
It the utility model is related to the laser optical system and coupled lens for making to be coupled to by coupled lens optical fiber from the laser beam that laser light source projects, it is therefore intended that, improve the productivity ratio of laser optical system.1 mode of the coupled lens of the disclosure possesses：The main part (6) of quadrangular shape；It is configured at the first lens section (7) of the first interarea (6a) of main part (6)；With be configured in main part (6) with the first interarea (6a) mutually back to the second interarea (6b) the second lens section (8), first side (6c) in main part (6) has the flat mounting surface (9) orthogonal with the first interarea (6a), using side orthogonal with first side (6c) in main part (6) as second side (6d), direction that will be orthogonal with second side (6d) is as first direction, the width (W1) of mounting surface (9) on first direction is set as 50% to 80% scope of the width (W) of the main part (6) on first direction.
Description
Technical field
This disclosure relates to make the laser beam from laser light source injection by coupled lens and the laser optical of fiber coupling
System and coupled lens.
Background technology
Laser optical system in the disclosure represents to make the laser beam from laser light source output via coupled lens
It is coupled to the optical system of optical fiber.Laser optical system has laser light source, coupled lens, optical fiber and base station.Laser
Light source, coupled lens, optical fiber are configured on base station, so that each optical axis is consistent.
Past, profile under the top view of coupled lens used investigation optical axis direction in such laser optical system
As the structure of four prismatics.That is, the coupled lens configure lens in the interarea of the light incident side of main part and the interarea of exiting side
Portion, the profile of main part is four prismatics under the top view in terms of optical axis direction, and 1 side of main part turns into be connected with base station
The mounting surface connect.
In addition, the prior art literature information associated as the utility model with the application, such as known patent document 1 arrive
3。
Prior art literature
Patent document
Patent document 1：TOHKEMY 2007-286211 publications
Patent document 2：TOHKEMY 2008-203418 publications
Patent document 3：TOHKEMY 2008-297146 publications
In the case of laser optical system as assembling, such as by laser light source and optic fiber configureing on base station
In given position.Next coupled lens are configured between laser light source and optical fiber.In the positioning of coupled lens, on one side
Confirm from laser light source project light optical fiber optically focused coupling efficiency while being positioned.In actual coupled lens
In positioning operation, it is coated with the installation region of base station after binding agent and is positioned by assembler, connection coupling is saturating on base station
Mirror.In addition, binding agent produces expansion or shrinkage according to environmental conditions such as temperature or humidity, this is related to laser optical system
In coupling efficiency reduction.Therefore, in order to lower the influence of the change in shape of the binding agent, it is necessary to strongly reduce binding agent.
On the other hand, when installing coupled lens, if wrapping of the binding agent to mounting surface is insufficient, will turn into relative to
Base station coupled lens are easy to the unsure state fallen.Therefore, in the case where making binding agent small amount, by coupled lens
After being positioned at base station, during binding agent is fully wrapped mounting surface, it is necessary to support coupled lens by assembler.That is, have
The problem of built-up time of laser optical system is elongated such.
Utility model content
Disclosure purpose is, solves the problems, such as such, improves the productivity ratio of laser optical system.
1 mode of the coupled lens in the disclosure possesses：The main part of quadrangular shape；First lens section, is configured at master
First interarea in body portion；With the second lens section, be configured in main part with the first interarea mutually back to the second interarea, in main part
First side there is the flat mounting surface orthogonal with the first interarea, using side orthogonal with first side in main part as
Second side 6d, using the direction orthogonal with second side 6d as first direction, the width of the mounting surface on first direction is set
It is set to 50% to 80% scope of the width of the main part on first direction.
1 mode of the laser optical system in the disclosure possesses：Base station；Laser light source, it is configured on base station；With
Coupled lens, configure on base station from laser light source project light optical axis on；And optical fiber, configure the light on base station
On axle, coupled lens have：The main part of quadrangular shape；First lens section, it is configured at the first interarea of main part；It is saturating with second
Mirror portion, be configured in main part with the first interarea mutually back to the second interarea, the first side in main part has and the first master
The orthogonal flat mounting surface in face, will be with second side using side orthogonal with first side in main part as second side
As first direction, the width of the mounting surface on first direction is set to the width of the main part on first direction in orthogonal direction
50% to 80% scope of degree.
The effect of utility model
By this composition, the productivity ratio of laser optical system can be improved.
Brief description of the drawings
Fig. 1 is the schematic diagram of the laser optical system in 1 embodiment for represent the disclosure.
Fig. 2 is the front view of the coupled lens of the laser optical system in 1 embodiment for form the disclosure.
Fig. 3 is the bottom view of the coupled lens of the laser optical system in 1 embodiment for form the disclosure.
Fig. 4 is the schematic diagram of the manufacture method of the coupled lens in 1 embodiment for represent the disclosure.
The explanation of label
1 laser light source
2a optical axises
3 optical fiber
4 base stations
5 coupled lens
6 main parts
The interareas of 6a first
The interareas of 6b second
6c first sides
6d second sides
7 first lens sections
8 second lens sections
9 mounting surfaces
100 laser optical systems
A, B processes diameter
The width of W main parts
The width of W1 mounting surfaces
Embodiment
Accompanying drawing used below illustrates the 1 of the disclosure embodiment.In addition, embodiments described below all represents this
Disclosed preferable 1 concrete example.Therefore, shape, material, inscape, the inscape shown in following embodiment
Configuration and connection form etc. be one, be not meant to limit the disclosure.Thus, to the composition in following embodiment
The inscape do not recorded in the independent claims of upper concept of the present utility model is represented among key element, is illustrated to be any
Inscape.
Fig. 1 is the laser optical system 100 for making to be coupled to from the light 2 that laser light source 1 projects optical fiber 3.Laser
Optical system 100 is used for example in optical communication system.Laser optical system 100 on base station 4 by configuring laser light source
1st, coupled lens 5, optical fiber 3 and form.
Base station 4 is made up of silicon substrate.The part for being configured with laser light source 1 in base station 4 is provided with light prominent upward
Source pedestal portion 4a.Set light source pedestal portion 4a height so that optical axis 2a is with laser light source 1 and coupled lens 5 in height
Spend on direction and consistent.The part for being configured with optical fiber 3 in base station 4 is provided with optical fiber pedestal portion 4b prominent upward.In light
Fibre pedestal portion 4b top is provided with the groove (being not particularly illustrated) of V shape.By configuring optical fiber 3 by optical fiber 3 in the groove of V shape
It is positioned at optical axis 2a height.
Laser light source 1 can use laser diode.Such as it is used in by laser optical system 100 in optical communication system
Transmission system in the case of, the wavelength of light projected from laser light source 1 is set to 1310nm.By laser optical
In the case that system 100 is used in the transmission system in optical communication system, the wavelength of the light projected from laser light source 1 is set
For 1550nm.
Coupled lens 5 have：The main part 6 of quadrangular shape；Configuration in main part 6 in face of the of laser light source 1
One interarea 6a the first lens section 7；With second interarea 6b in face of optical fiber 3 of the configuration in main part 6 the second lens section 8.
The front view of the coupled lens 5 from optical axis direction is shown in Fig. 2.Main part 6 have the first interarea 6a, the second interarea 6b and
First to the 4th side 6c~6f.In main part 6, the first interarea 6a and the second interarea 6b are back-to-back.First side 6c such as Fig. 3 institutes
Show has flat mounting surface 9 like that.Fig. 3 is the bottom view of coupled lens 5.Mounting surface 9 is the region for being bonded in base station 4.The
Two side faces 6d is orthogonal with first side 6c.3rd side 6e is orthogonal with first side 6c, back-to-back with second side 6d.4th side
Face 6f and first side 6c are back-to-back.
In addition, the dotted line 7a in Fig. 2 represents the first lens section 7 and the first interarea 6a border.Solid line 8a represents that second is saturating
The interarea 6b of mirror portion 8 and second border.These borders turn into circle, and the diameter of a circle for representing the border is referred to as and processes diameter.
Main part 6 in coupled lens 5 is quadrangular shape.Wherein, the coupling part in face and face is connected by curved surface in main part 6
Connect.In addition, the coupling part in face and face for example represents the crest line equivalent to the first interarea 6a and first side 6c in main part 6
Partly or the part equivalent to first side 6c and second side 6d crest line.Quadrangular shape is such in the disclosure shows
Represent the shape that the ridge line section in main part 6 is curved surface.In addition, the first interarea 6a and the second interarea 6b are except ridge line section
Tabular surface beyond curved surface.In addition, the size of main part 6 such as height H is 1mm, width W is 1mm, thickness D is 0.47mm.Separately
Outside, the processing diameter A in the first interarea 6a is 0.6mm, and the processing diameter B in the second interarea 6b is 0.74mm.In mounting surface 9
The width W1 of optical axis direction is 0.65mm, and the width W2 in the direction orthogonal with optical axis 2a is 0.38mm.It is orthogonal with optical axis 2a in addition
Direction and identical with the direction that second side 6d is orthogonal.Coupled lens 5 as shown in Figure 3, from main part 6 protrude second
The overhang of lens section 8 is more than the overhang of the first lens section 7.
In addition, manufacture method of the reasons why ridge line section of the main part 6 is made into curved surface because of coupled lens 5.Next
Illustrate the manufacture method of coupled lens 5.
Fig. 4 is the schematic diagram for the forming process for representing coupled lens 5.Pressing make-up machine has lower metal pattern 20, upper metal
Mould 21 and trunk mould (trunk type) 22.The upper surface of lower metal pattern 20 has to be transferred to the second interarea 6b in coupled lens 5
Forming face 20a.The upper surface of upper metal pattern 21 has the forming face transferred to the first interarea 6a in coupled lens 5.
Trunk mould 22 has the through hole of four prismatic shapes.Lower metal pattern 20 is inserted and fixed from the downside of trunk mould 22.Upper metal pattern
21 can be slidably inserted into from the upper end of trunk mould 22.
Coupled lens 5 it is compressing in, first in the space configuration glass formed by lower metal pattern 20 and trunk mould 22
Glass part 30.Glass workpiece 30 is formed by processing glomerate optical glass.Next from the upper metal pattern of the upper end of trunk mould 22 insertion
21.Glass workpiece 30 is heated in this condition, makes its heating.Temperature can be shaped what glass workpiece 30 was warming up to more than focus conversion temperature
After spending scope, metal pattern 21 is slided downwards, deform glass workpiece 30.At the interval of upper metal pattern 21 and lower metal pattern 20
The time point for reaching desired value stops the slip of upper metal pattern 21.The position of metal pattern 21 unchangeably cools down glass in holding
Part 30.After glass workpiece 30 cools to the temperature that can be taken out from pressing make-up machine, metal pattern 21 is set to slide upward, by glass
Part 30 takes out from pressing make-up machine.In addition, being pressed the glass workpiece 30 of shaping means coupled lens 5.
In such compressing process, the volume settings of glass workpiece 30 are obtained into the volume relative to compressing space
Smaller, this point is important.In addition, so-called compressing space, refers to that the interval of metal pattern 21 and lower metal pattern 20 reaches
The space surrounded by upper metal pattern 21, lower metal pattern 20 and trunk mould 22 at the time point of desired value.In glass workpiece
In the case that 30 volume is more than the volume in compressing space, the remainder of glass workpiece 30 can enter metal pattern 21 with
Gap between trunk mould 22 or between lower metal pattern 20 and trunk mould 22.The entrance of the remainder, which turns into, causes metal pattern
21 slip, die sinking it is bad the reason for.Therefore, the body in compressing space must be less than by the volume of glass workpiece 30 being preset
Product, so as to which the remainder of glass workpiece 30 will not be produced including machining deviation.In this way, by the way that the volume of glass workpiece 30 is set
Surely the volume in compressing space must be less than, will not be wrapped to the above-mentioned upper metal pattern to connect with trunk mould 22 from glass workpiece 30
The outer peripheral portion of 21 outer peripheral portion and the lower metal pattern 20 to connect with trunk mould 22.As a result, the coupling for being pressed shaping is saturating
The ridge line section of main part 6 in mirror 5 turns into curve form.The curved surface of the ridge line section of main part 6 is the freedom of non-transfer forming face
Curved surface.In addition, the ratio shared by the curved surface of the ridge line section can be adjusted by the volume of glass workpiece 30.
Then in the coupled lens 5, the width of the mounting surface 9 on the direction orthogonal with second side 6d be set at
More than 50% and less than 80% scope of the width of the main part 6 on direction orthogonal second side 6d.By such
The width of mounting surface 9 is provided, the productivity ratio of laser optical system 100 can be improved.
That is, diminished by reducing the width of the mounting surface 9 in coupled lens 5 and the area of mounting surface 9.Pass through mounting surface 9
Area diminish, binding agent during to the bonding of base station 4 wrap the required time and shortened.Therefore, assembler branch is shortened
The time of coupled lens 5 is supportted, improves productivity ratio.If in addition, the width of mounting surface 9 is set to the 80% of the width of main part 6
More than, then the reduction effect of the area of mounting surface 9 is insufficient.If in addition, make the width of the short of width main part 6 of mounting surface 9
50%, then the area of mounting surface 9 can become too small, coupled lens 5 are bonded to bad stability during base station 4.
In addition, in the coupled lens 5, the processing diameter B of the second lens section 8 is more than the processing diameter of the first lens section 7
A.Based on this composition, pass through the width W1 limitation processing diameters B of mounting surface 9 upper limit.Processing diameter B be have influence on it is compressing
The key element of the durability of lower metal pattern 20 in machine.Formed in the forming face 20a of lower metal pattern 20 equivalent to the second lens section 8
The recess of bowl-type.Therefore, if processing diameter B is big, the distance from the openend of recess to the upper periphery of metal pattern 21 diminishes.It is tied
The durability of metal pattern 21 can reduce on fruit.On the other hand, according to the disclosure, as described above, the width W1 of mounting surface 9 is limited
It is set to less than the 80% and more than 50% of the width W of main part 6.Thus, because the width W1 of mounting surface 9 is processed diameter B limits
System, thus ensuring that metal pattern durability.In addition, it is less than the processing of the first lens section 7 in the processing diameter B of the second lens section 8
In the case of diameter A, the processing diameter A of the first lens section 7 is set to be less than the width W1 of mounting surface 9.In addition, in the first lens
In the case that the processing diameter A in portion 7 and the processing diameter B of the second lens section 8 are equal, make the processing diameter A of the first lens section 7 with
And second the sides of processing diameter B two of lens section 8 be both less than the width W1 of mounting surface 9.
Industrial applicability
Coupled lens and laser optical system in the disclosure are for example in QFSP (Quad Small Form-factor
Pluggable, four-way SFP) etc. it is useful in small-sized optical communication system purposes.
Claims (4)
1. a kind of coupled lens, possess：
The main part of quadrangular shape；
First lens section, it is configured at the first interarea of the main part；With
Second lens section, be configured in the main part with first interarea mutually back to the second interarea,
First side in the main part has the flat mounting surface orthogonal with first interarea,
Using side orthogonal with the first side in the main part as second side,
Using the direction orthogonal with the second side as first direction,
The width of the mounting surface on the first direction is set to the width of the main part on the first direction
50% to 80% scope.
2. coupled lens according to claim 1, wherein,
The processing diameter of second lens section is more than the processing diameter of first lens,
The width of the mounting surface on the first direction is less than the processing diameter of second lens section.
3. a kind of laser optical system, possesses：
Base station；
Laser light source, it is configured on the base station；With
Coupled lens, configure on the base station from the laser light source project light optical axis on；With
Optical fiber, configure on the optical axis on the base station,
The coupled lens have：
The main part of quadrangular shape；
First lens section, it is configured at the first interarea of the main part；With
Second lens section, be configured in the main part with first interarea mutually back to the second interarea,
First side in the main part has the flat mounting surface orthogonal with first interarea,
Using side orthogonal with the first side in the main part as second side,
Using the direction orthogonal with the second side as first direction,
The width of the mounting surface on the first direction is set to the width of the main part on the first direction
50% to 80% scope.
4. laser optical system according to claim 3, wherein,
The processing diameter of second lens section is more than the processing diameter of first lens,
The width of the mounting surface on the first direction is less than the processing diameter of second lens section.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2016203216A JP2018066771A (en) | 2016-10-17 | 2016-10-17 | Coupling lens and laser optical system |
| JP2016-203216 | 2016-10-17 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207123626U true CN207123626U (en) | 2018-03-20 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721154767.5U Active CN207123626U (en) | 2016-10-17 | 2017-09-08 | Coupled lens and laser optical system |
Country Status (2)
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| JP (1) | JP2018066771A (en) |
| CN (1) | CN207123626U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110873928A (en) * | 2018-08-31 | 2020-03-10 | 台湾山村光学股份有限公司 | Coupling lens |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007286211A (en) * | 2006-04-14 | 2007-11-01 | Alps Electric Co Ltd | Optical member and optical communication module |
| JP5247065B2 (en) * | 2007-05-30 | 2013-07-24 | 日立マクセル株式会社 | Optical element and optical element molding die |
| JP2008297149A (en) * | 2007-05-30 | 2008-12-11 | Hitachi Maxell Ltd | Optical element and mold for forming optical element |
| KR101430634B1 (en) * | 2010-11-19 | 2014-08-18 | 한국전자통신연구원 | Optical Modules |
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- 2016-10-17 JP JP2016203216A patent/JP2018066771A/en active Pending
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110873928A (en) * | 2018-08-31 | 2020-03-10 | 台湾山村光学股份有限公司 | Coupling lens |
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| JP2018066771A (en) | 2018-04-26 |
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