CN207123630U - Coupled lens and laser optical system - Google Patents
Coupled lens and laser optical system Download PDFInfo
- Publication number
- CN207123630U CN207123630U CN201721154770.7U CN201721154770U CN207123630U CN 207123630 U CN207123630 U CN 207123630U CN 201721154770 U CN201721154770 U CN 201721154770U CN 207123630 U CN207123630 U CN 207123630U
- Authority
- CN
- China
- Prior art keywords
- interarea
- mounting surface
- main part
- lens
- coupled lens
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
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)；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), under first side (6c) top view, from mounting surface (9) to the distance of the first interarea (1a) and from mounting surface (9) to the distance of the second interarea (6b) in difference.
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.
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；It is configured at the first master of main part
First lens section in face；Be configured in main part with the first interarea mutually back to the second interarea the second lens section, main part
In first side there is the flat mounting surface orthogonal with the first interarea, under the top view of first side, from mounting surface
To the distance of the first interarea and from mounting surface to the distance of the second interarea in difference.
1 mode of the laser optical system in the disclosure possesses：Base station；The laser light source being configured on base station；
The coupled lens being configured on the optical axis of the light projected from laser light source on base station；Be configured on the optical axis on base station
Optical fiber, coupled lens possess：The main part of quadrangular shape；It is configured at the first lens section of the first interarea of main part；With with
Be placed in main part with the first interarea mutually back to the second interarea the second lens section, the first side in main part has and the
The orthogonal flat mounting surface of one interarea, under the top view of first side, from mounting surface to the distance of the first interarea and from
The distance of mounting surface to the second interarea is in difference.
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 side view of the coupled lens of the laser optical system in 1 embodiment for form the disclosure.
Fig. 5 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
7 first lens sections
8 second lens sections
9 mounting surfaces
100 laser optical systems
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 consistent on direction.The part of configuration optical fiber 3 in base station 4 is provided with optical fiber pedestal portion 4b prominent upward.Used in optical fiber
Pedestal portion 4b top is provided with the groove (being not particularly illustrated) of V shape.Optical fiber 3 is positioned by configuring optical fiber 3 in the groove of V shape
In 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 with
And there is flat mounting surface 9 as shown in Figure 4.Fig. 3 is the bottom view of coupled lens 5.Fig. 4 is the side view of coupled lens 5.
Mounting surface 9 is the region for being bonded in base station 4.Second side 6d is orthogonal with first side 6c.3rd side 6e and first side 6c
It is orthogonal, it is back-to-back with second side 6d.4th side 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 is, for example, height H is 1mm, width W is 1mm, thickness D is 0.46mm.
In addition, the processing diameter A in the first interarea 6a is 0.49mm, the processing diameter B in the second interarea 6b is 0.72mm.Mounting surface 9
In the width W1 of optical axis direction be 0.55mm, the width W2 in the direction orthogonal with optical axis 2a is 0.37mm.In addition with optical axis 2a
Orthogonal direction and identical with the direction that second side 6d is orthogonal.In addition, it is from the interarea of mounting surface 9 to the second 6b distance W3
0.03mm.It is 0.06mm from the interarea of mounting surface 9 to the first 6a distance W4.Coupled lens 5 as shown in Figure 3 and 4, from
The overhang for the second lens section 8 that main part 6 protrudes 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. 5 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 having reached desired value stops the slip of upper metal pattern 21.The position of metal pattern 21 unchangeably cools down glass in holding
Glass 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
Glass part 30 takes out from pressing make-up machine.In addition, compressing glass workpiece 30 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 30
Volume be more than compressing space volume in the case of, the remainder of glass workpiece 30 can enter metal pattern 21 and body
Between the dry mould 22 or gap 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, glass workpiece 30 will not wrap the above-mentioned upper metal pattern 21 to connect with trunk mould 22
Outer peripheral portion and the lower metal pattern 20 to connect with trunk mould 22 outer peripheral portion.As a result, it is pressed the coupled lens of shaping
The ridge line section of main part 6 in 5 turns into curve form.The curved surface of the ridge line section of main part 6 is the freely bent of non-transfer forming face
Face.In addition, the ratio shared by the curved surface of the ridge line section can be adjusted by the volume of glass workpiece 30.
And in the coupled lens 5, under the top view to first side 1a, make from the interarea of mounting surface 9 to the first
6a distance W4 is different with the distance W3 from the interarea of mounting surface 9 to the second 6b.By so making the position of mounting surface 9 relative to light
Direction of principal axis is eccentric, can improve the productivity ratio of laser optical system 100.
I.e., as shown in Figure 4, the radius R1 of the curved surface between the first interarea 6a and first side 6c is according to installation
The distance of face 9 and the first interarea and change.Similarly, the radius R2 of the curved surface between the second interarea 6b and first side 6c
Changed according to mounting surface 9 and the second interarea 6b distance.That is, because the mounting surface 9 of coupled lens 5 is to the second interarea 6b sides
Bias, therefore radius R2 diminishes, radius R1 becomes big.Therefore, the center of gravity G of coupled lens 5 is eccentric to the second interarea side 6b.In addition,
The interarea of mounting surface 9 to the second 6b distance W3 is less than the distance W4 to the first interarea 6a.Therefore, center S such as Fig. 3 of mounting surface 9
It is shown such, it is more eccentric more to the second interarea 6b sides than the first interarea 6a and the second interarea 6b middle N.
That is, by making distance W4 and the distance W3 from the interarea of mounting surface 9 to the second 6b from the interarea of mounting surface 9 to the first 6a
Difference, the center of gravity G of coupled lens 5 under top view and the center S of mounting surface 9 distance P can be adjusted.As a result, it will couple
Lens 5 are difficult to topple over when being arranged on base station 4.Therefore, because shortening the time of assembler support coupled lens 5, therefore improve
The productivity ratio of laser optical system 100.
In addition, in the case where the volume of the second lens section 8 protruded from main part 6 is less than the volume of the first lens section 7,
Make to be less than distance W3 from the interarea of installation portion 9 to the second 6b from the interarea of installation portion 9 to the first 6a distance W4, make mounting surface 9 to
First interarea 6a sides bias.
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,
Under the top view of the first side, from the mounting surface to the distance of first interarea and from the mounting surface
Distance to second interarea is in difference.
2. coupled lens according to claim 1, wherein,
In the case where the volume of first lens section is more than the volume of second lens,
It is less than from the mounting surface to the distance of first interarea from the mounting surface to the distance of second interarea.
3. a kind of laser optical system, possesses：
Base station；
Laser light source, it is configured on the base station；
Coupled lens, it is configured on the optical axis of the light projected from the laser light source on the base station；With
Optical fiber, it is configured on the optical axis on the base station,
The 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,
Under the top view of the first side, from the mounting surface to the distance of first interarea and from the mounting surface
Distance to second interarea is in difference.
4. laser optical system according to claim 3, wherein,
In the case where the volume of first lens section is more than the volume of second lens, from the mounting surface to described the
The distance of one interarea is less than from the mounting surface to the distance of second interarea.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2016210373A JP2018072499A (en) | 2016-10-27 | 2016-10-27 | Coupling lens and laser optical system |
| JP2016-210373 | 2016-10-27 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207123630U true CN207123630U (en) | 2018-03-20 |
Family
ID=61601750
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721154770.7U Active CN207123630U (en) | 2016-10-27 | 2017-09-08 | Coupled lens and laser optical system |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP2018072499A (en) |
| CN (1) | CN207123630U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109683216A (en) * | 2019-01-18 | 2019-04-26 | 武汉光迅科技股份有限公司 | A kind of asymmetric lens and optical device |
| CN110873928A (en) * | 2018-08-31 | 2020-03-10 | 台湾山村光学股份有限公司 | Coupling lens |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPWO2021251043A1 (en) * | 2020-06-11 | 2021-12-16 | ||
| WO2022107269A1 (en) * | 2020-11-19 | 2022-05-27 | 三菱電機株式会社 | Optical module |
Family Cites Families (3)
| 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 |
| KR101430634B1 (en) * | 2010-11-19 | 2014-08-18 | 한국전자통신연구원 | Optical Modules |
| JP6503761B2 (en) * | 2015-01-29 | 2019-04-24 | コニカミノルタ株式会社 | Method of manufacturing optical element and mold |
-
2016
- 2016-10-27 JP JP2016210373A patent/JP2018072499A/en active Pending
-
2017
- 2017-09-08 CN CN201721154770.7U patent/CN207123630U/en active Active
Cited By (3)
| 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 |
| TWI698670B (en) * | 2018-08-31 | 2020-07-11 | 台灣山村光學股份有限公司 | Coupling lens |
| CN109683216A (en) * | 2019-01-18 | 2019-04-26 | 武汉光迅科技股份有限公司 | A kind of asymmetric lens and optical device |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2018072499A (en) | 2018-05-10 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN207123630U (en) | Coupled lens and laser optical system | |
| CN100504474C (en) | High precision optical fiber alignment components | |
| CN103597389B (en) | Optical fiber connector ferrule having open fiber clamping grooves | |
| JP4675143B2 (en) | Optical element molding method and apparatus, substrate and mold | |
| US8646290B2 (en) | Method of manufacturing a glass optical element | |
| EP0933656A3 (en) | Optical waveguide component and a method of producing the same | |
| US20120128936A1 (en) | Glass optical element and method for manufacturing the same | |
| EP1413905A4 (en) | Optical module and production method therefor | |
| CN207123626U (en) | Coupled lens and laser optical system | |
| JP5074017B2 (en) | Optical element manufacturing method, optical element mold, and optical element | |
| JP6634388B2 (en) | Stamping to form a composite structure composed of dissimilar materials having structured features | |
| US6473555B1 (en) | Optical Fiber | |
| CN106030363B (en) | Optical receptacle and optical module | |
| JP2010231130A (en) | Optical module | |
| JP3973699B2 (en) | Optical fiber fixing member, optical fiber fixing member manufacturing method, optical fiber array, and optical fiber array manufacturing method | |
| JP2008285374A (en) | Joined optical element and its manufacturing method | |
| JPWO2020032072A1 (en) | Optical connection parts | |
| US20080165438A1 (en) | Optical lens unit including lens barrel containing lens and method for producing optical lens unit | |
| US6368524B1 (en) | Optical element molding method and optical material for molding optical element | |
| JP2015098423A (en) | Lens production method, lens and optical module using the lens | |
| CN108267816B (en) | Optical module, method of manufacturing the same, and optical module | |
| JPH07294779A (en) | Core diameter expanding optical fiber with lens and its production | |
| JP5327565B2 (en) | Glass molding press mold for manufacturing multiple coupling lenses | |
| WO2018037960A1 (en) | Optical connector production method | |
| CN114325954B (en) | Novel optical fiber array structure and manufacturing method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |