CN105938223A - Low-loss four-port hybrid two-wavelength wavelength division multiplexing optical passive device - Google Patents
Low-loss four-port hybrid two-wavelength wavelength division multiplexing optical passive device Download PDFInfo
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- CN105938223A CN105938223A CN201610504490.8A CN201610504490A CN105938223A CN 105938223 A CN105938223 A CN 105938223A CN 201610504490 A CN201610504490 A CN 201610504490A CN 105938223 A CN105938223 A CN 105938223A
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- loss
- wavelength
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- low
- passive device
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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
- G02B6/29379—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 characterised by the function or use of the complete device
- G02B6/2938—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 characterised by the function or use of the complete device for multiplexing or demultiplexing, i.e. combining or separating wavelengths, e.g. 1xN, NxM
-
- 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
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Optical Couplings Of Light Guides (AREA)
Abstract
The invention discloses a low-loss four-port hybrid two-wavelength wavelength division multiplexing optical passive device. The low-loss four-port hybrid two-wavelength wavelength division multiplexing optical passive device comprises a converging lens; a set of components comprising a WDM optical filter, a self-focusing lens and a double-optical fiber head is arranged at the left side and right side of the converging lens respectively, wherein the components are coaxial with the converging lens; and the WDM optical filter, the self-focusing lens and the double-optical fiber head at the same side of the converging lens are far from the converging lens sequentially. According to the low-loss four-port hybrid two-wavelength wavelength division multiplexing optical passive device of the invention, the beam converging lens is arranged at one end which is far from an isolator core, and can correct a divergence angle, and therefore, the technical problem that coupling mismatch of light beams of one kind of wavelength can be avoided, and insertion loss IL can be adjusted to be minimum for two light beams of which the wavelengths are largely different from each other.
Description
Technical field
The present invention relates to a kind of optical passive component, particularly relate to a kind of low-loss four port hybrid type two wavelength ripple
Divide multiplexed optical passive device, belong to optical fiber communication equipment technical field.
Background technology
Optical passive component is the important component part of optical fiber communication equipment, is also that other fiber optic applications field can not
The components and parts lacked.Have high return loss, low insertion loss, high reliability, stability, machinery wear-resisting
Property and corrosion resistance, the feature such as easily operated, be widely used in long haul communication, Local Area Network and optical fiber and arrive
Family, transmission of video, optical fiber sensing etc..
Optical passive component in the optical path will consumed energy, insertion loss is its main performance index.Existing skill
Art differs bigger light beam two wave-length division multiplexed optical passive device for wavelength and there is following deficiency: to enter
Penetrate as a example by optical wavelength is respectively 980nm, 1550nm, when mixing up the reflection of 980nm wavelength light beam, make 980nm
When the insertion loss IL of wavelength light beam is transferred to minimum, for 1550nm wavelength light beam transmission, 1550nm wavelength
There is the angle of divergence in light beam, 1550nm wave band exists for coupling mismatch, causes the insertion loss of 1550nm wave band
Bigger than normal.
Summary of the invention
It is an object of the invention to overcome deficiency of the prior art, it is provided that a kind of low-loss four port hybrid type
Two wave-length division multiplexed optical passive devices, in solution prior art, two wave-length division multiplexed optical passive devices cannot
The insertion loss making two wavelength light beams is transferred to the technical problem of minimum simultaneously.
For solving deficiency of the prior art, the technical solution adopted in the present invention is: low-loss four port mixes
Mould assembly two wave-length division multiplexed optical passive device, including collecting lens, the left and right sides of described collecting lens with
Described collecting lens coaxial line respectively arranges one group: WDM optical filter, GRIN Lens and double optical fiber head；For
The same side of collecting lens: described WDM optical filter, GRIN Lens and double optical fiber head are along away from assembling thoroughly
The direction order of mirror is arranged.
Described collecting lens is one side convex lens.
The plane of described one side convex lens is provided with isolator core, the plane of described one side convex lens and isolator
The magnet ring of core is fixing to be connected.
Described optical passive component is located in glass tubing, and described collecting lens is fixing with the inwall of glass tubing to be connected.
Compared with prior art, the present invention is reached to provide the benefit that: be additionally arranged beam convergence lens, energy
Enough revise the angle of divergence, it is to avoid the light beam of one of which wavelength exists the technical problem of coupling mismatch, for wavelength
The two-beam differing bigger can realize insertion loss IL simultaneously and be transferred to minimum.
Accompanying drawing explanation
Fig. 1 is the structural representation of the present invention.
Fig. 2 is the optical schematic diagram of the present invention.
In figure: 1, isolator core；2, WMD optical filter；3, GRIN Lens；4, double optical fiber head；5、
Collecting lens.
Detailed description of the invention
The invention will be further described below in conjunction with the accompanying drawings.Following example are only used for clearly illustrating
Technical scheme, and can not limit the scope of the invention with this.
As it is shown in figure 1, be the structural representation of the present invention, including be coaxially set: an isolator core,
One collecting lens, two WDM optical filters, two GRIN Lens and two double optical fiber heads.WDM filters
Mating plate, GRIN Lens and double optical fiber head are respectively arranged on the left side and the right side one at isolator core.For isolation
The same side of device core: WDM optical filter is located at the GRIN Lens side near isolator core, double optical fiber head with
What WDM optical filter was relative is located at the opposite side of GRIN Lens, leaves between GRIN Lens and double optical fiber head
Gap, it is simple to the insertion loss of regulation reflection wavelength.
Isolator core includes magnet ring and the isolating device being located in magnet ring, and circular one side convex lens selected by collecting lens
Mirror, the diameter of one side convex lens is identical with the external diameter of magnet ring.The plane of one side convex lens is arranged towards magnet ring,
And fixing with magnet ring be connected；Arranging convex surface facing WDM optical filter of one side convex lens.
For one side convex lens, meetWherein f represents the focal length of one side convex lens；
N represents the refractive index of one side convex lens；R1Represent fiber exit beam end face to one side convex lens photocentre away from
From；R2Represent as the distance to one side convex lens photocentre.
The effect in the present invention of isolator core is: permission transmission peak wavelength one-way transmission, inessential sight, also
Can be not provided with, as in figure 2 it is shown, be the present invention optical schematic diagram that is not provided with isolator core, the light in figure
Bundle dotted line is exactly the path of beam propagation.
The above is only the preferred embodiment of the present invention, it is noted that common for the art
For technical staff, on the premise of without departing from the technology of the present invention principle, it is also possible to make some improvement and change
Shape, these improve and deformation also should be regarded as protection scope of the present invention.
Claims (4)
1. low-loss four port hybrid type two wave-length division multiplexed optical passive device, it is characterised in that include that collecting lens, the left and right sides of described collecting lens and described collecting lens coaxial line respectively arrange one group: WDM optical filter, GRIN Lens and double optical fiber head；The same side for collecting lens: described WDM optical filter, GRIN Lens and double optical fiber head are arranged along the direction order away from collecting lens.
Low-loss four port hybrid type two wave-length division multiplexed optical passive device the most according to claim 1, it is characterised in that described collecting lens is one side convex lens.
Low-loss four port hybrid type two wave-length division multiplexed optical passive device the most according to claim 2, it is characterised in that the plane of described one side convex lens is provided with isolator core, the plane of described one side convex lens is fixing with the magnet ring of isolator core to be connected.
4., according to the low-loss four port hybrid type two wave-length division multiplexed optical passive device described in claim 1 or 3, it is characterised in that described optical passive component is located in glass tubing, described collecting lens is fixing with the inwall of glass tubing to be connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610504490.8A CN105938223A (en) | 2016-06-30 | 2016-06-30 | Low-loss four-port hybrid two-wavelength wavelength division multiplexing optical passive device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610504490.8A CN105938223A (en) | 2016-06-30 | 2016-06-30 | Low-loss four-port hybrid two-wavelength wavelength division multiplexing optical passive device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105938223A true CN105938223A (en) | 2016-09-14 |
Family
ID=56872284
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610504490.8A Pending CN105938223A (en) | 2016-06-30 | 2016-06-30 | Low-loss four-port hybrid two-wavelength wavelength division multiplexing optical passive device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105938223A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113589441A (en) * | 2021-09-26 | 2021-11-02 | 广东电网有限责任公司中山供电局 | Dual-mode switchable splitter |
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| CN2322153Y (en) * | 1997-11-21 | 1999-06-02 | 陈祖培 | Multiplex optical fibre insulator |
| CN1409144A (en) * | 2001-09-27 | 2003-04-09 | 松下电器产业株式会社 | Stick shape non-spherical lens and its producing method |
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| CN1497280A (en) * | 2002-10-01 | 2004-05-19 | ��˹���´﹫˾ | Symmetric, double-nonspherical lens used in transmission and reflecting optical fibre component |
| CN201063082Y (en) * | 2007-08-17 | 2008-05-21 | 福州高意通讯有限公司 | Polarization correlative isolater for free space |
| CN201828683U (en) * | 2010-05-11 | 2011-05-11 | 武汉奥新科技有限公司 | Low-loss optical wavelength division multiplexer |
| CN102959442A (en) * | 2011-08-15 | 2013-03-06 | 深圳市杰普特电子技术有限公司 | Fiber mode converter and fiber isolator with mode conversion function |
| CN203178521U (en) * | 2013-04-16 | 2013-09-04 | 北极光电(深圳)有限公司 | Structure of hybrid-type optical passive device |
| CN103293605A (en) * | 2013-05-11 | 2013-09-11 | 广州奥鑫通讯设备有限公司 | High-performance integrated optical device and preparation method thereof |
| CN203224647U (en) * | 2012-11-12 | 2013-10-02 | 光越科技(深圳)有限公司 | Novel polarization-maintaining optical isolator structure |
| CN203250044U (en) * | 2013-04-02 | 2013-10-23 | 光越科技(深圳)有限公司 | Multiport high efficiency fiber wavelength division multiplexer |
| CN206020718U (en) * | 2016-06-30 | 2017-03-15 | 苏州伽蓝致远电子科技股份有限公司 | Four port hybrid type of low-loss, two wave-length division is multiplexed optical passive component |
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2016
- 2016-06-30 CN CN201610504490.8A patent/CN105938223A/en active Pending
Patent Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2322153Y (en) * | 1997-11-21 | 1999-06-02 | 陈祖培 | Multiplex optical fibre insulator |
| CN1409144A (en) * | 2001-09-27 | 2003-04-09 | 松下电器产业株式会社 | Stick shape non-spherical lens and its producing method |
| US20030122064A1 (en) * | 2001-12-28 | 2003-07-03 | Hiroyuki Tanaka | Collimator having a holder used to connect rod lens to capillary which holds optical fibers |
| CN1497280A (en) * | 2002-10-01 | 2004-05-19 | ��˹���´﹫˾ | Symmetric, double-nonspherical lens used in transmission and reflecting optical fibre component |
| CN201063082Y (en) * | 2007-08-17 | 2008-05-21 | 福州高意通讯有限公司 | Polarization correlative isolater for free space |
| CN201828683U (en) * | 2010-05-11 | 2011-05-11 | 武汉奥新科技有限公司 | Low-loss optical wavelength division multiplexer |
| CN102959442A (en) * | 2011-08-15 | 2013-03-06 | 深圳市杰普特电子技术有限公司 | Fiber mode converter and fiber isolator with mode conversion function |
| CN203224647U (en) * | 2012-11-12 | 2013-10-02 | 光越科技(深圳)有限公司 | Novel polarization-maintaining optical isolator structure |
| CN203250044U (en) * | 2013-04-02 | 2013-10-23 | 光越科技(深圳)有限公司 | Multiport high efficiency fiber wavelength division multiplexer |
| CN203178521U (en) * | 2013-04-16 | 2013-09-04 | 北极光电(深圳)有限公司 | Structure of hybrid-type optical passive device |
| CN103293605A (en) * | 2013-05-11 | 2013-09-11 | 广州奥鑫通讯设备有限公司 | High-performance integrated optical device and preparation method thereof |
| CN206020718U (en) * | 2016-06-30 | 2017-03-15 | 苏州伽蓝致远电子科技股份有限公司 | Four port hybrid type of low-loss, two wave-length division is multiplexed optical passive component |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113589441A (en) * | 2021-09-26 | 2021-11-02 | 广东电网有限责任公司中山供电局 | Dual-mode switchable splitter |
| CN113589441B (en) * | 2021-09-26 | 2022-01-25 | 广东电网有限责任公司中山供电局 | Dual-mode switchable splitter |
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Application publication date: 20160914 |
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