CN104730646A - Focusing-type optical wavelength division multiplexer - Google Patents
Focusing-type optical wavelength division multiplexer Download PDFInfo
- Publication number
- CN104730646A CN104730646A CN201510183126.1A CN201510183126A CN104730646A CN 104730646 A CN104730646 A CN 104730646A CN 201510183126 A CN201510183126 A CN 201510183126A CN 104730646 A CN104730646 A CN 104730646A
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- CN
- China
- Prior art keywords
- lens
- wavelength division
- optical filter
- focusing
- positioning ring
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- 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.)
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Classifications
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- 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
-
- 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
Abstract
The invention relates to a focusing-type optical wavelength division multiplexer comprising a metal shell having an inner cavity. An optical filter, parallel optical lenses and a glass capillary are mounted in order within the metal shell. A capillary protective sleeve sleeves the glass capillary. A metal positioning ring sleeves the parallel optical lenses and is tightly fitly connected with the wall of the inner cavity of the metal shell. One end, close to the optical filter, of the metal positioning ring is circularly provided with a circular 45-degree slope structure from inside to outside. A focusing lens is connected to the outer end of the optical filter. The focusing-type optical wavelength division multiplexer is simple in structure, high in coaxiality, stable and reliable in performance, simple to produce and mainly applicable to the field of optical communications and has good practical application value.
Description
Technical field
The present invention relates to optical communication equipment technical field, especially a kind of focusing light wavelength division multiplexing.
Background technology
Optical communication field, optical wavelength-division multiplex refers to and allows two or more optical wavelength signal by different optical channel transmission information separately in same optical fiber simultaneously, realize the Transmission light of 1550nm wavelength or other wavelength, the light of 1260nm-1490nm wavelength reflexes to another root optical fiber, their basic demand is: insertion loss is low, isolation is high, there is good bandpass characteristics, temperature stability is good, multiplexing number of vias has higher resolution etc. more, and in same optical fiber, allow two or more optical wavelength signal by different optical channel transmission or bounce transmission simultaneously.
Optical communication develop rapidly in recent years, optical communication network becomes the basic platform of modern communication networks, area of light just improves transfer rate by the mode of wavelength-division multiplex, light signal achieves directly multiplexing and amplification, each wavelength is independent of one another, transparent to the data layout of transmission, precisely require higher to it, traditional wavelength division multiplexer producer is difficult to control for the focusing location of product in operation, and existing light wavelength division multiplexing generally adopt diaphragm directly and lens paste, product stationarity is bad, in temperature cycles process, product parameters index can change.
Summary of the invention
Object of the present invention is exactly the problems referred to above existed for existing wavelength division multiplexer, provides a kind of right alignment high, the focusing light wavelength division multiplexing that optical signal transmission is reliable and stable.
Concrete scheme of the present invention is: a kind of focusing light wavelength division multiplexing; include the metal shell of band inner chamber; metal shell inside is equipped with optical filter, parallel light lens, glass capillary successively; kapillary protective sleeve is set with outside glass capillary; in described parallel light lens outer cover, one metal positioning ring is housed; described metal positioning ring and metal shell internal chamber wall are closely connected; described metal positioning ring is outwards equipped with a circle 45 ° of pitch angle structures near one end of optical filter from inner ring, is also connected with a condenser lens in the outer end of described optical filter.
Optical filter described in the present invention, parallel light lens and glass capillary adopt the form of directly pasting to be connected.
Condenser lens described in the present invention adopts 0.23p G-Lens lens.
Parallel light lens described in the present invention adopts 0.248p G-Lens lens.
Parallel light lens described in the present invention, optical filter and metal positioning ring three coaxially assemble.
The beneficial effect that the present invention obtains:
First, parallel light lens is fixed by the original directly bonding metal set collar that changes into, good stability, and set collar is provided with 45 ° of pitch angle structures near optical filter one end, be convenient to the glue after storing solidification, make the right alignment of product and parameters index not change in temperature cycles process like this, transmission light path deviation angle is less than 0.5 °, and product quality promotes further.
The second, after have employed the design of metal set collar, the location of lens, optical filter and glass capillary and faster and better when being bonded in mass production, and reduce every cost; Coordinated with the accurate of metal shell by metal positioning ring, then make condenser lens directly aim at light path, decrease the operation that lens are coupled with light path, save time, improve economic benefit.
3rd, after have employed the project organization of condenser lens, telecommunication laser therewith product coupling efficiency promote more than 20%, can 50% be reached, improve the luminous energy of laser instrument coupled fiber.
Structure of the present invention is simple, and product right alignment is high, stable and reliable for performance, and production technology is simple, has good actual application value.
Accompanying drawing explanation
Fig. 1 is the present invention's overall axle geodesic structure schematic diagram;
Fig. 2 is metal positioning ring axle geodesic structure schematic diagram in the present invention;
To be that the present invention is main cut open structural representation to Fig. 3;
Fig. 4 is that the light path in the present invention moves towards schematic diagram.
In figure: 1-condenser lens, 2-optical filter, 3-parallel light lens, 4-metal positioning ring, 5-glass capillary, 6-kapillary protective sleeve, 7-45 ° of pitch angle structures, 8-metal shell.
Embodiment
See Fig. 1-Fig. 3; the present invention is a kind of focusing light wavelength division multiplexing; include the metal shell 8 of band inner chamber; metal shell inside is equipped with optical filter 2, parallel light lens 3, glass capillary 5 successively; kapillary protective sleeve 6 is set with outside glass capillary; in described parallel light lens outer cover, one metal positioning ring 4 is housed; described metal positioning ring and metal shell internal chamber wall are closely connected; described metal positioning ring is outwards equipped with a circle 45 ° of pitch angle structures 7 near one end of optical filter from inner ring, is also connected with a condenser lens 1 in the outer end of described optical filter.
Optical filter 2 described in the present embodiment, parallel light lens 3 and glass capillary 5 adopt the form of directly pasting to be connected.
Condenser lens described in the present embodiment adopts 0.23p G-Lens lens.
Parallel light lens described in the present embodiment adopts 0.248p G-Lens lens.
Parallel light lens 3 described in the present embodiment, optical filter 2 and metal positioning ring 4 three coaxially assemble.
In the present invention, parallel light lens is fixed by the original directly bonding metal set collar that changes into, good stability, and set collar is provided with 45 ° of pitch angle structures near optical filter one end, be convenient to the glue after storing solidification, the right alignment of product and parameters index is made not to change in temperature cycles process like this, transmission light path deviation angle is less than 0.5 °, and product quality promotes further.
After have employed the design of metal set collar in the present invention, the location of lens, optical filter and glass capillary and faster and better when being bonded in mass production, and reduce every cost; Coordinated with the accurate of metal shell by metal positioning ring, then make condenser lens directly aim at light path, decrease the operation that lens are coupled with light path, save time, improve economic benefit.
Claims (5)
1. a focusing light wavelength division multiplexing; include the metal shell of band inner chamber; metal shell inside is equipped with optical filter, parallel light lens, glass capillary successively; kapillary protective sleeve is set with outside glass capillary; it is characterized in that: in described parallel light lens outer cover, one metal positioning ring is housed; described metal positioning ring and metal shell internal chamber wall are closely connected; described metal positioning ring is outwards equipped with a circle 45 ° of pitch angle structures near one end of optical filter from inner ring, is also connected with a condenser lens in the outer end of described optical filter.
2. the focusing light wavelength division multiplexing of one according to claim 1, is characterized in that: described optical filter, parallel light lens and glass capillary adopt the form of directly pasting to be connected.
3. the focusing light wavelength division multiplexing of one according to claim 1, is characterized in that: described condenser lens adopts 0.23p G-Lens lens.
4. the focusing light wavelength division multiplexing of one according to claim 1, is characterized in that: described parallel light lens adopts 0.248p G-Lens lens.
5. the focusing light wavelength division multiplexing of one according to claim 1, is characterized in that: described parallel light lens, optical filter and metal positioning ring three coaxially assemble.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510183126.1A CN104730646B (en) | 2015-04-17 | 2015-04-17 | A kind of focusing light wavelength division multiplexing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510183126.1A CN104730646B (en) | 2015-04-17 | 2015-04-17 | A kind of focusing light wavelength division multiplexing |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104730646A true CN104730646A (en) | 2015-06-24 |
| CN104730646B CN104730646B (en) | 2018-01-12 |
Family
ID=53454717
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510183126.1A Active CN104730646B (en) | 2015-04-17 | 2015-04-17 | A kind of focusing light wavelength division multiplexing |
Country Status (1)
| Country | Link |
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| CN (1) | CN104730646B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2506033Y (en) * | 2001-10-24 | 2002-08-14 | 福州康顺光通讯有限公司 | Thin film interference filter type wave multiplexing device |
| US20030072527A1 (en) * | 2001-10-15 | 2003-04-17 | Yiqiang Li | Dense wavelength division multiplexer configuration |
| CN1503477A (en) * | 2002-11-23 | 2004-06-09 | 鸿富锦精密工业（深圳）有限公司 | Wave division multiplexer |
| CN201051161Y (en) * | 2007-04-28 | 2008-04-23 | 福州高意通讯有限公司 | A single optical fiber calibrator |
| CN203705696U (en) * | 2014-02-24 | 2014-07-09 | 讯达康通讯设备(惠州)有限公司 | High isolation wavelength division multiplexing detection device |
-
2015
- 2015-04-17 CN CN201510183126.1A patent/CN104730646B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20030072527A1 (en) * | 2001-10-15 | 2003-04-17 | Yiqiang Li | Dense wavelength division multiplexer configuration |
| CN2506033Y (en) * | 2001-10-24 | 2002-08-14 | 福州康顺光通讯有限公司 | Thin film interference filter type wave multiplexing device |
| CN1503477A (en) * | 2002-11-23 | 2004-06-09 | 鸿富锦精密工业（深圳）有限公司 | Wave division multiplexer |
| CN201051161Y (en) * | 2007-04-28 | 2008-04-23 | 福州高意通讯有限公司 | A single optical fiber calibrator |
| CN203705696U (en) * | 2014-02-24 | 2014-07-09 | 讯达康通讯设备(惠州)有限公司 | High isolation wavelength division multiplexing detection device |
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| Publication number | Publication date |
|---|---|
| CN104730646B (en) | 2018-01-12 |
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