CN106054320A - Optical-fiber adjustable filter - Google Patents
Optical-fiber adjustable filter Download PDFInfo
- Publication number
- CN106054320A CN106054320A CN201610649994.9A CN201610649994A CN106054320A CN 106054320 A CN106054320 A CN 106054320A CN 201610649994 A CN201610649994 A CN 201610649994A CN 106054320 A CN106054320 A CN 106054320A
- Authority
- CN
- China
- Prior art keywords
- filter
- optical
- insertion core
- ceramic insertion
- optical fiber
- 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.)
- Pending
Links
Classifications
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/24—Coupling light guides
- G02B6/26—Optical coupling means
- G02B6/28—Optical coupling means having data bus means, i.e. plural waveguides interconnected and providing an inherently bidirectional system by mixing and splitting signals
- G02B6/293—Optical coupling means having data bus means, i.e. plural waveguides interconnected and providing an inherently bidirectional system by mixing and splitting signals with wavelength selective means
- G02B6/29346—Optical coupling means having data bus means, i.e. plural waveguides interconnected and providing an inherently bidirectional system by mixing and splitting signals with wavelength selective means operating by wave or beam interference
- G02B6/29358—Multiple beam interferometer external to a light guide, e.g. Fabry-Pérot, etalon, VIPA plate, OTDL plate, continuous interferometer, parallel plate resonator
- G02B6/29359—Cavity formed by light guide ends, e.g. fibre Fabry Pérot [FFP]
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/24—Coupling light guides
- G02B6/26—Optical coupling means
- G02B6/32—Optical coupling means having lens focusing means positioned between opposed fibre ends
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Optical Couplings Of Light Guides (AREA)
Abstract
The invention discloses an optical-fiber adjustable filter. The filter comprises an optical fiber, a ceramic insertion core, self-focusing lenses, a Filter optical filter, an external optical coating film layer, a collimating connection sleeve and PIN joints. The optical fiber penetrates a center of the ceramic insertion core. Two ends of a filter are provided with the self-focusing lenses respectively so as to realize focusing and coupling of an optical signal. A cross section of the ceramic insertion core is installed with the Filter optical filter. Grinding and polishing are performed on the ceramic insertion core and an optical-fiber end surface. The external optical coating film layer is adsorbed on the ceramic insertion core and the optical-fiber end surface through an optical coating film. The collimating connection sleeve sleeves the ceramic insertion core. The PIN joints are installed on two sides of the filter. The filter is simple to manufacture, has low cost and possesses reliable quality. Engineering personnel installation operation is convenient, and batch production and a low cost product demand of a client are satisfied.
Description
Technical field
The present invention relates to communication technical field, be specifically related to a kind of optical fiber tunable filter.
Background technology
Along with the development of Fibre Optical Communication Technology, optical filter product is applied on a large scale, its product structure and performance
Variation has occurred, especially Optical Access Network FTTH and the development of PON, miniaturization, low cost, online plug and play
One of developing direction for optical filter, is more particularly applied to the optical device of FTTB, CATV, such as: based on mono-at FTTH
Application in fine solution ONU, thus can shield the signal of VIDEO, is used as the anti-of OTDR signal during FTTH circuit monitoring
Penetrate the application such as terminal, PON monitoring and network system upgrading, owing to this series products consumption is very big, so the cost to product,
The installation operation convenience of product, and the aspect such as product miniaturization just had higher requirement, the most widely used
Conventional media film optical filter, uses optical fiber collimator structure, causes the cost of raw material higher, and conventional optical filters can only be made
The structure of magnetic tape trailer optical-fiber type, due to needs coiled optical fiber and point fibre operation, engineering staff's troublesome poeration, even if product tape adapter is tied
Structure, owing to adapter and wave filter itself are to separate, assembling needs both to be stitched together by optical fiber, such product body
Amassing again can be very big, be not suitable for the application demand of access network device miniaturization.
Summary of the invention
The technical problem to be solved in the present invention is the defect overcoming prior art, it is provided that a kind of optical fiber tunable filter, side
Just the use in life, increases the safety used.
In order to solve above-mentioned technical problem, the invention provides following technical scheme: a kind of optical fiber tunable filter, bag
Include: optical fiber, ceramic insertion core, GRIN Lens, Filter optical filter, external optical coating film layer, collimation adapter sleeve, PIN joint,
Described smooth pricker runs through described ceramic insertion core center, and described wave filter two ends are respectively arranged with a GRIN Lens and realize light
The focusing coupling of signal, told ceramic insertion core cross section is provided with Filter filter, and described ceramic insertion core and fiber end face enter
Row grinding and polishing, described external optical coating film layer is adsorbed at ceramic insertion core and fiber end face, described collimation by optical coating
Adapter sleeve is socketed on ceramic insertion core, and described PIN joint is arranged on described wave filter both sides.
Preferably, described wave filter is plug type structure.
Preferably, described ceramic insertion core is nonstandard high-precision ceramic lock pin, and instead of traditional light pricker collimator type
Optical fiber head.
Preferably, described PIN joint is arranged over chute, is provided with pushing block in described chute, and described pushing block is solid with PIN joint
Fixed connection.
Preferably, described wave filter is special tunable optic filter based on all-fiber FP etalon technology.
The present invention is reached to provide the benefit that: the present invention makes simple, with low cost, reliable in quality, and engineering staff pacifies
Fill easy to operate, meet batch production and the low cost product demand of client, and the present invention is optical fiber tunable filter.
Accompanying drawing explanation
Accompanying drawing is for providing a further understanding of the present invention, and constitutes a part for description, with the reality of the present invention
Execute example together for explaining the present invention, be not intended that limitation of the present invention, in the accompanying drawings:
Fig. 1 is the structure chart of the present invention；
Fig. 2 is the external optical coating film layer structure schematic diagram of the present invention；
In figure: 1-optical fiber, 2-ceramic insertion core, 3-GRIN Lens, 4-Filter optical filter, 5-external optical coating film layer, 6-
Collimation adapter sleeve, 7-PIN joint, 8-pushing block.
Detailed description of the invention
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the design in the embodiment of the present invention is carried out clear, complete
Describe, it is clear that described embodiment is only a part of embodiment of the present invention rather than whole embodiments wholely.Based on
Embodiment in the present invention, it is every other that those of ordinary skill in the art are obtained under not making creative work premise
Embodiment, broadly falls into the scope of protection of the invention.
Embodiment 1
Shown in as shown in Figure 1, Figure 2, one optical fiber tunable filter of the present invention, including: optical fiber 1, ceramic insertion core 2, GRIN Lens 3,
Filter optical filter 4, external optical coating film layer 5, collimation adapter sleeve 6, PIN joint 7, described smooth pricker 1 runs through described pottery to be inserted
Core 2 center, described wave filter two ends are respectively arranged with a GRIN Lens 3 and realize the coupling of the focusing to optical signal, told
Ceramic insertion core 2 cross section is provided with Filter optical filter 4, described ceramic insertion core 2 and optical fiber 1 end face and is ground polishing,
Described external optical coating film layer 5 is adsorbed at ceramic insertion core 2 and optical fiber 1 end face by optical coating, and described collimation adapter sleeve 6 overlaps
Being connected on ceramic insertion core 2, described PIN joint 7 is arranged on described wave filter both sides.
Further, described wave filter is plug type structure, has used for reference Hermaphrodite optical stationary attenuator structure, it is simple to tear open
Unload maintenance.
Further, described ceramic insertion core 2 is nonstandard high-precision ceramic lock pin, and instead of traditional light pricker collimator class
Type optical fiber head, thus effectively
Further, described PIN joint 7 is arranged over chute, is provided with pushing block 8 in chute, and described pushing block 8 is fixed with PIN joint 7
Connect, promote pushing block 8 to be released by PIN joint 7, again by PIN joint 7 indentation when not using, effectively prevent the pollution of dust.
Further, described wave filter is special tunable optic filter based on all-fiber FP etalon technology, and it is permitted
Being permitted wavelength has the light of multiple proportion to pass through with FP cavity length, and the light of other wavelength press Airy function and decayed.
The invention reside in: ceramic insertion core 2 cross section is provided with Filter optical filter 4, ceramic insertion core 2 and optical fiber 1 end face and enters
Row grinding and polishing processes, and external optical coating film layer 5 is by optical coating absorption at ceramic insertion core 2 and optical fiber 1 end face, and collimation is even
Female connector 6 is enclosed within ceramic insertion core 2, and PIN joint 7 is arranged on described wave filter both sides, and wave filter has been used for reference Hermaphrodite photofixation and declined
Subtracting device structure, for plug type structure, ceramic insertion core 2 is nonstandard high-precision ceramic lock pin, and instead of traditional light pricker collimation
Device type fiber head, wave filter is special tunable optic filter based on all-fiber FP etalon technology, and the present invention makes letter
Single, with low cost, reliable in quality, engineering staff installs easy to operate, meets batch production and the low cost product demand of client.
Finally it is noted that the foregoing is only the preferred embodiments of the present invention, it is not limited to the present invention,
Although being described in detail the present invention with reference to previous embodiment, for a person skilled in the art, it still may be used
So that the technical scheme described in foregoing embodiments to be modified, or wherein portion of techniques feature is carried out equivalent.
All within the spirit and principles in the present invention, any modification, equivalent substitution and improvement etc. made, should be included in the present invention's
Within protection domain.
Claims (5)
1. an optical fiber tunable filter, including: optical fiber (1), ceramic insertion core (2), GRIN Lens (3), Filter optical filter
(4), external optical coating film layer (5), collimation adapter sleeve (6), PIN joint (7), it is characterised in that: described smooth pricker (1) runs through institute
Stating ceramic insertion core (2) center, described wave filter two ends are respectively arranged with a GRIN Lens (3) and realize gathering optical signal
Burnt coupling, described ceramic insertion core (2) cross section is provided with Filter optical filter (4), described ceramic insertion core (2) and optical fiber (1) end
Face is ground polishing, and described external optical coating film layer (5) is adsorbed at ceramic insertion core (2) and optical fiber by optical coating
(1) end face, described collimation adapter sleeve (6) is socketed on ceramic insertion core (2), and described PIN joint (7) is arranged on described wave filter two
Side.
A kind of optical fiber tunable filter the most according to claim 1, it is characterised in that: described wave filter is plug type knot
Structure.
A kind of optical fiber tunable filter the most according to claim 1, it is characterised in that: described ceramic insertion core (2) is nonstandard
High-precision ceramic lock pin, and instead of traditional light pricker collimator type fiber head.
A kind of optical fiber tunable filter the most according to claim 1, it is characterised in that: described PIN joint (7) is arranged over
Chute, is provided with pushing block (8) in chute, described pushing block (8) is fixing with PIN joint (7) to be connected.
A kind of optical fiber tunable filter the most according to claim 1, described wave filter is based on all-fiber FP etalon skill
The special tunable optic filter of art.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610649994.9A CN106054320A (en) | 2016-08-08 | 2016-08-08 | Optical-fiber adjustable filter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610649994.9A CN106054320A (en) | 2016-08-08 | 2016-08-08 | Optical-fiber adjustable filter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106054320A true CN106054320A (en) | 2016-10-26 |
Family
ID=57480288
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610649994.9A Pending CN106054320A (en) | 2016-08-08 | 2016-08-08 | Optical-fiber adjustable filter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106054320A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107707213A (en) * | 2017-10-19 | 2018-02-16 | 苏州优浦精密铸造有限公司 | A kind of spliced casing of filter of adjustable length |
-
2016
- 2016-08-08 CN CN201610649994.9A patent/CN106054320A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107707213A (en) * | 2017-10-19 | 2018-02-16 | 苏州优浦精密铸造有限公司 | A kind of spliced casing of filter of adjustable length |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20161026 |