CN208013486U - A kind of optical fiber component - Google Patents
A kind of optical fiber component Download PDFInfo
- Publication number
- CN208013486U CN208013486U CN201820645108.XU CN201820645108U CN208013486U CN 208013486 U CN208013486 U CN 208013486U CN 201820645108 U CN201820645108 U CN 201820645108U CN 208013486 U CN208013486 U CN 208013486U
- Authority
- CN
- China
- Prior art keywords
- optical fiber
- capillary
- beam expander
- face
- fiber component
- 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.)
- Expired - Fee Related
Links
Landscapes
- Optical Couplings Of Light Guides (AREA)
Abstract
The utility model discloses a kind of optical fiber component, including optical fiber, capillary and beam expander, the capillary is axially disposed through-hole, the optical fiber is fixedly connected on by adhesive in the through-hole, the end face of the optical fiber is concordant with the end face of the capillary, and the beam expander is fixedly connected on by described adhesive on the end face of the capillary.By the way that beam expander is arranged in the end face of the capillary and optical fiber, make the Gauss divergence light beam from the fiber exit after beam expander, the hot spot at Air Interface expands, and optical power density declines, the deposition for reducing volatile substance and suspended matter improves the high power ability to bear of optical fiber component.
Description
Technical field
The utility model is related to optical fibre device technical fields, more particularly to a kind of optical fiber component.
Background technology
High power light fiber device, particularly high-capacity optical fiber laser have become a popular research side both domestic and external
To having been widely used for material Precision Machining, medical treatment, communication etc..Optical fiber collimator is by tail optical fiber and GRIN Lens essence
Determine that position forms.Transmission light in optical fiber can be transformed into collimated light (directional light) by it, or by extraneous parallel (less parallel)
It is optically coupled in single mode optical fiber.High-power fiber component is high-capacity optical fiber laser and its component, high power isolator and frequency
The important component of domain bundling device.The maximum for improving optical fiber component bears the popular problem that power is people's research.Although existing
Some technologies can reduce the luminous power surface density of fiber end face in optical fiber front end welding the preceding paragraph without doped core optical fiber, improve device
The tolerance power capabilities of part.But the highly difficult without doped core optical fiber of exact length is processed in practice, especially to two light
Optical fiber component more than fibre, to keep the use of above-mentioned solution limited.
In conclusion how to provide a kind of optical fiber component for the tolerance power capabilities that can improve device becomes this field skill
Art personnel technical problem urgently to be resolved hurrily.
Utility model content
The purpose of this utility model is to provide a kind of optical fiber component, to solve the above-mentioned problems of the prior art, makes light
It is stronger that fine component is resistant to high-power ability.
To achieve the above object, the utility model provides following scheme：The utility model provides a kind of optical fiber component, packet
Optical fiber, capillary and beam expander are included, the capillary is axially disposed to have through-hole, the optical fiber to be fixedly connected on by adhesive
In the through-hole, the end face of the optical fiber is concordant with the end face of the capillary, and the beam expander is solid by described adhesive
Surely it is connected on the end face of the capillary.
Preferably, the beam expander is optical glass plain film, lens or crystal plain film.
Preferably, two light end faces excessively of the beam expander are coated with antireflective coating.
Preferably, the thickness of the beam expander is 0.3 millimeter -50 millimeters.
Preferably, the optical fiber is coated with antireflective coating on the end face of the beam expander.
Preferably, described adhesive is organic bond or inorganic bond, and the volatile substance of described adhesive rubs
You are less than 90 grams/mol at quality.
Preferably, the material of the capillary is glass, metal or ceramics.
The utility model achieves following technique effect compared with the existing technology：
The utility model provides a kind of optical fiber component, by the way that beam expander is arranged in the end face of the capillary and optical fiber,
Make the Gauss divergence light beam from the fiber exit after beam expander, the hot spot at Air Interface expands, optical power density
Decline, reduces the deposition of volatile substance and suspended matter, improve the high power ability to bear of optical fiber component.
Description of the drawings
In order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment
Needed in attached drawing be briefly described, it should be apparent that, the accompanying drawings in the following description is only the utility model
Some embodiments for those of ordinary skill in the art without having to pay creative labor, can also basis
These attached drawings obtain other attached drawings.
Fig. 1 is the schematic diagram of optical fiber structure and emergent light；
Fig. 2 is the optical fiber component of the utility model and the schematic diagram of emergent light；
Fig. 3 is that the optical fiber component of the utility model applies a form of structural schematic diagram in double-fiber collimator；
Fig. 4 is that the optical fiber component of the utility model applies the another form of structural representation in double-fiber collimator
Figure；
Wherein, 1 is fiber core, and 2 be fibre cladding, and 3 be fiber end face, and 4 be Gaussian beam, and 5 be beam expander, and 6 be expansion
The interface of beam device and air, 7 be capillary, and 21 be the first lens, and 22 be collimator casing, and 23 be first adhesive, and 24 be close
Air chamber is closed, 25 be the first optical fiber, and 31 be the second lens, and 32 be second adhesive, and 33 be the second optical fiber.
Specific implementation mode
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work
The every other embodiment obtained, shall fall within the protection scope of the present invention.
Fig. 1 is the schematic diagram of optical fiber structure in the prior art and emergent light.Optical fiber includes fiber core 1 and fibre cladding
2, fibre cladding 2 is wrapped in the outer surface of fiber core 1, and fiber core 1 is used for transmission Gaussian beam 4.Gaussian beam 4 is girdled the waist
Near fiber end face 3, the optical power density for being located at the Gaussian beam 4 near fiber end face 3 is larger, the gradient of electric field strength
Also larger, thus be particularly easy to capture and collect the molecule or micel to suspend in air, and make these sedimentation of suspensions in optical fiber
The outer surface of end face 3 causes the reflection, scattering and absorption of Gaussian beam 4, can further lead to optical fiber component disabler.When
When fiber core 1 is in the enclosure space for having used adhesive, since adhesive is heated, the concentration of suspended matter can be higher, very
It is easy to cause optical fiber component failure.
The purpose of this utility model is to provide a kind of optical fiber component, of the existing technology to solve the problems, such as, makes optical fiber group
It is stronger that part is resistant to high-power ability.
To keep the above objects, features, and advantages of the utility model more obvious and easy to understand, below in conjunction with the accompanying drawings and have
Body embodiment is described in further detail the utility model.
As shown in Fig. 2, the utility model provides a kind of optical fiber component, including optical fiber, capillary 7 and beam expander 5, capillary
Pipe 7 is axially disposed to have through-hole, the optical fiber to be fixedly connected in the through-hole by adhesive, the end face of the optical fiber and hair
The end face of tubule 7 is concordant, and beam expander 5 is fixedly connected on by described adhesive on the end face of capillary 7.The optical fiber includes
Fiber core 1 and fibre cladding 2, fibre cladding 2 are wrapped in the outer surface of fiber core 1, and fiber core 1 is used for transmission Gauss light
Beam 4.The Gaussian beam 4 being emitted from fiber end face 3, which enters in beam expander 5, to be transmitted, and there is no the collections that can be captured in beam expander 5
Suspended matter, avoid the deposition of fiber end face 3, absorption reflection, scattering and absorption of the suspended matter to Gaussian beam 4.Beam expander
It has been diverged to compared with large spot with the Gaussian beam 4 at the interface 6 of air, optical power density is smaller, the gradient of electric field strength
Very little, thus be difficult that the molecule or micel that suspend in air are collected in capture, so as to avoid the heavy of volatile substance and suspended matter
Product, improves the high power transmission ability of optical fiber component.
Wherein, beam expander 5 is optical glass plain film, lens or crystal plain film.
Two light end faces excessively of beam expander 5 are coated with antireflective coating.Antireflective coating can reduce or eliminate the anti-of beam expander 5
Light is penetrated, to increase the light transmission capacity of beam expander 5, reduces or eliminates the stray light of component.The optical fiber is close to the end face of beam expander 5
On be coated with antireflective coating, to reduce or eliminate the reflected light of the fiber exit end face, increase light transmission capacity.
The thickness for expanding piece 7 is 0.3 millimeter -50 millimeters.Those skilled in the art select suitable thickness according to actual conditions
The piece 7 that expands apply in the optical fiber component of the utility model.
Described adhesive is organic bond or inorganic bond, and the molal weight of the volatile substance of described adhesive is small
In 90 grams/mol.The volatile matter characteristic of the small molal weight of described adhesive avoids the pollution of volatile matter secondary deposition, prevents from sinking
Product pollution effect light path.
The material of capillary 7 is glass, metal or ceramics.
Embodiment one
As shown in figure 3, the optical fiber component of the utility model is applied in a form of double-fiber collimator, double light
Fine collimator includes the first lens 21 and capillary 7, and the outer surface of the first lens 21 and capillary 7 is arranged with collimator casing
22, collimator casing 22 is by the outer surface fixed seal connection of first adhesive 23 and the first lens 21 and capillary 7, and first
Beam expander 5 is provided between lens 21 and capillary 7, beam expander 5 is located at capillary 7, the first lens 21 and collimator casing 22
In the closed air chamber 24 surrounded, it is provided with through-hole in capillary 7, is fixedly connected with by first adhesive 23 in the through-hole
One end of first optical fiber 25, beam expander 5 is fixedly connected by first adhesive 23 with the end face of capillary 7 and the first optical fiber 25.
First optical fiber 25 be arranged it is one or more, in the present embodiment, the first optical fiber 25 be provided with two.In the present embodiment, first
Adhesive 23 selects inorganic bond, inorganic bond than organic bond to there is higher luminous power tolerance and heat to be resistant to
Power.
In use, the Gauss being emitted from 25 end face of the first optical fiber girdles the waist, small light spot is not directly entered containing the closed of volatile matter
Air chamber 24, but by beam expander 5, hot spot just enters the confined air of the volatile matter containing first adhesive 23 after further increasing
In air cavity 24, light beam at this time dies down significantly to the capacity gauge of volatile matter；Due to the use of first adhesive 23 volatile matter
In only small molal weight volatile matter, these small molal weight volatile matters are difficult to be deposited on the surface that beam expander 5 is contacted with air
Place, thus improve the tolerance power capabilities of device.
Embodiment two
As shown in figure 4, the optical fiber component of the utility model is applied in another form of double-fiber collimator, it is described double
Optical fiber collimator includes the second lens 31 and capillary 7, and through-hole is provided in capillary 7, passes through the second bonding in the through-hole
Agent 32 is fixedly connected with the second optical fiber 33, and one end of the second lens 31 passes through second adhesive 32 and capillary 7 and the second optical fiber
33 end face connection.In the present embodiment, the second optical fiber 33 is provided with two.The second lens 31 in the present embodiment not only have real
The function of the first lens 21 in example one is applied, and has the function of beam expander 5.
In use, the Gaussian beam being emitted from 33 end face of the second optical fiber is successively in second adhesive 32 and the second lens 31
Transmission, before light beam leaves the second lens 31, light beam does not contact volatile substance without Air Interface, and light beam will not occur
To the collection phenomenon of volatile substance, thus the high-power ability of tolerance for improving device.
Specific case is applied in the utility model to be expounded the principles of the present invention and embodiment, it is above
The explanation of embodiment is merely used to help understand the method and its core concept of the utility model；Meanwhile for the one of this field
As technical staff, according to the utility model thought, there will be changes in the specific implementation manner and application range.To sum up
Described, the content of the present specification should not be construed as a limitation of the present invention.
Claims (7)
1. a kind of optical fiber component, it is characterised in that：Including optical fiber, capillary and beam expander, the capillary is axially disposed to be had
Through-hole, the optical fiber are fixedly connected on by adhesive in the through-hole, the end face of the end face of the optical fiber and the capillary
Concordantly, and the beam expander is fixedly connected on by described adhesive on the end face of the capillary.
2. optical fiber component according to claim 1, it is characterised in that：The beam expander be optical glass plain film, lens or
Crystal plain film.
3. optical fiber component according to claim 2, it is characterised in that：The light end face excessively of two of the beam expander, which is coated with, to be subtracted
Reflectance coating.
4. optical fiber component according to claim 2, it is characterised in that：The thickness of the beam expander is 0.3 millimeter of -50 milli
Rice.
5. optical fiber component according to claim 1, it is characterised in that：The optical fiber plates on the end face of the beam expander
There is antireflective coating.
6. according to claim 1-5 any one of them optical fiber components, it is characterised in that：Described adhesive be organic bond or
The molal weight of person's inorganic bond, the volatile substance of described adhesive is less than 90 grams/mol.
7. according to claim 1-5 any one of them optical fiber components, it is characterised in that：The material of the capillary be glass,
Metal or ceramics.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820645108.XU CN208013486U (en) | 2018-04-19 | 2018-04-19 | A kind of optical fiber component |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820645108.XU CN208013486U (en) | 2018-04-19 | 2018-04-19 | A kind of optical fiber component |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208013486U true CN208013486U (en) | 2018-10-26 |
Family
ID=63893443
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820645108.XU Expired - Fee Related CN208013486U (en) | 2018-04-19 | 2018-04-19 | A kind of optical fiber component |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208013486U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113740965A (en) * | 2021-09-01 | 2021-12-03 | 珠海光库科技股份有限公司 | Beam expanding optical fiber and manufacturing method thereof |
-
2018
- 2018-04-19 CN CN201820645108.XU patent/CN208013486U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113740965A (en) * | 2021-09-01 | 2021-12-03 | 珠海光库科技股份有限公司 | Beam expanding optical fiber and manufacturing method thereof |
| CN113740965B (en) * | 2021-09-01 | 2024-08-23 | 珠海光库科技股份有限公司 | Beam-expanding optical fiber and manufacturing method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP3376269B1 (en) | Method of forming cladding mode stripper for use with optical systems | |
| CN208013486U (en) | A kind of optical fiber component | |
| CN107442521A (en) | Laser cleaning head | |
| CN104035166A (en) | Multi-core optical fiber based high power laser beam combiner | |
| CN103454730A (en) | Optical fiber collimator | |
| Xin et al. | Bacteria‐based branched structures for bionanophotonics | |
| CN107037595A (en) | A kind of laser combined beam light system | |
| CN103823277B (en) | A kind of joints of optical fibre | |
| CN206283096U (en) | The simple hectowatt grade Bladder stone system of light path | |
| CN205608241U (en) | Optical fiber collimator | |
| CN201255777Y (en) | High-power optical fiber collimator | |
| EP0308604A1 (en) | Optical coupling device for a laser diode with an optical wave guide | |
| CN1293401C (en) | Hollow circular truncated cone laser optical fibre coupler | |
| CN204790068U (en) | High -power optical collimator | |
| CN1687840A (en) | Apparatus for aligning and focusing high-power semiconductor laser array light beam | |
| CN204556887U (en) | A kind of high-power fiber optical alignment coupled system | |
| CN101252250A (en) | Laser resonant cavity thin film of middle infrared high damage threshold | |
| CN203930134U (en) | High power laser light bundling device based on multi-core fiber | |
| CN206315075U (en) | A kind of OCT probe | |
| WO2015081758A1 (en) | A high-power optical fiber head, collimator, isolator and frequency combiner | |
| CN203932660U (en) | A kind of high power multicore optical fiber laser | |
| CN210376754U (en) | Structure for preventing optical fiber welding spot from overheating | |
| CN208367258U (en) | A kind of low crosstalk big mode field area multi-core optical fiber | |
| CN208399753U (en) | Bidirectional optical fiber end cap with laser beam expanding output and reflection functions | |
| CN208737037U (en) | A kind of device making cladding light stripper |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20181026 Termination date: 20210419 |