CN106199839A - A kind of light interleaver device - Google Patents
A kind of light interleaver device Download PDFInfo
- Publication number
- CN106199839A CN106199839A CN201610764554.8A CN201610764554A CN106199839A CN 106199839 A CN106199839 A CN 106199839A CN 201610764554 A CN201610764554 A CN 201610764554A CN 106199839 A CN106199839 A CN 106199839A
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- lens
- light
- lens unit
- unit
- arra
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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
- G02B6/28—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
- G02B6/29398—Temperature insensitivity
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Optical Elements Other Than Lenses (AREA)
Abstract
The open a kind of light interleaver device of the present invention, including the collimation input/output unit (101) being arranged in order, expands device (102), spectro-grating (103), focusing arrangement (104), lens arra (105), reflecting mirror (106)；Input light light splitting through collimating, expanding is become by multiple single channel optical signals of Wavelength distribution by spectro-grating (103), and line focus device (104) incides described lens arra (105) after focusing in parallel；Lens arra (105) is arranged on the position of front, the close described reflecting mirror (106) of described reflecting mirror (106), lens arra (105) includes multiple lens unit, its incident ray point is deviateed to realize the light through corresponding lens unit with predetermined incident angles to described reflecting mirror (106) in the position, lens centre of each described lens unit so that export from corresponding output port after the optical signal deviation of different wave length.Apparatus of the present invention have that band merit is excellent, temperature stability good, debugging is easy and low cost.
Description
Technical field
The present invention relates to a kind of light interleaver device, the invention belongs to optical communication field.
Background technology
The multiplex technique that intersects solves message capacity problem from odd-even channel intersection multiplex angle.Current light intersects
Wavelength division multiplexer (Interleaver) has three types: Mach-Zehnder (Mach-Zehnder) interferometer, Fabry Perot dry
Interferometer and three kinds of birefringece crystal type, the subject matter existed is that temperature stability is poor, debugging difficulty is big and cost is high.
Summary of the invention
It is an object of the invention to the deficiency for prior art, a kind of band merit of proposition is excellent, temperature stability
Well, easy low cost optical interleaver device is debugged.
The principle that technical solution of the present invention realizes is specific as follows: the optical signal sent from entry port first passes through and expands device
Carrying out expanding to improve band merit, become by the single channel optical signal of Wavelength distribution through spectro-grating light splitting the most again, each is single
Passage optical signal is focused on reflecting mirror by condenser lens again, and is positioned at the lens arra before reflecting mirror at input/output port
Orientation has curvature distribution, and requires to arrange each lens unit centre bit at port arragement direction according to wavelength grouping
Put, to select to allow different group wavelength from different output port outputs.
The technical solution used in the present invention is:
A kind of light interleaver device, including the collimation input/output unit being arranged in order, expands device, light splitting light
Grid, focusing arrangement, lens arra, reflecting mirror；Wherein, described spectro-grating by through collimation, the input light light splitting that expands become by
Multiple single channel optical signals of Wavelength distribution, line focus device incides described lens arra after focusing in parallel；Described
Before lens arra is arranged on described reflecting mirror, near the position of described reflecting mirror, described lens arra includes multiple lens unit,
The position, lens centre of each described lens unit deviate its incident ray point with realize the light through corresponding lens unit with
Predetermined incident angles is to described reflecting mirror, so that defeated from corresponding output port after the optical signal deviation of different wave length
Go out.
In described lens arra, to deviate distance d of its incident ray point saturating by this in the position, lens centre of each lens unit
The port of the wavelength channel output corresponding to mirror unit is determined to distance D of the input port of described smooth interleaver device
Fixed, and haveWherein f is the focal length of optical system, flensFor Jiao of respective lens unit in described lens arra
Away from.
The lens unit that the wavelength channel that exports from the output port of same smooth interleaver device is corresponding saturating
The distance of mirror center deviation incident ray point is set to unanimously.
In described lens arra, the position, lens centre of lens unit is according to the output of described smooth interleaver device
Port number is grouped, and the grouping number of lens unit is identical with output port number.
The corresponding one group of wavelength channel of each group of lens unit of described lens arra, each group of wavelength channel is from specified
Individual output port exports.
The lens unit interval that each group of lens unit employing of described lens arra is fixed arranges position, lens centre and divides
Cloth, it is possible to the distribution of lens unit center is the most arbitrarily set.
The manufacture method of described lens arra is: make the center distribution determining lens unit with mask plate, finally
Lens arra is made again via etching, plated film.
A kind of light interleaver device, including the collimation input/output unit being arranged in order, expands device, light splitting dress
Put, focusing arrangement, reflection unit；Input optical signal is after collimation input/output unit collimation, then carries out through expanding device
Expand, expand light beam and become by the single channel optical signal of Wavelength distribution, the single-pass after light-dividing device through light-dividing device light splitting
Road optical signal is focused on reflection unit by focusing arrangement again；Reflection unit takes a step forward and is provided with lens arra, lens arra by
The lens unit composition of multiple corresponding wavelength passages, its incident ray point is deviateed with reality in the position, lens centre of each lens unit
Now the light through corresponding lens unit organizes wavelength from respectively with predetermined incident angles to reflection unit, lens arra selection difference
The individual output port output specified.
Described light-dividing device uses spectro-grating, and reflection unit uses reflecting mirror.
Distance d that its incident ray point is deviateed in the position, lens centre of each described lens unit is right by this lens unit institute
The port of the wavelength channel output answered determines to distance D of the input port of described smooth interleaver device, and hasWherein f is the focal length of optical system, flensFor the focal length of respective lens unit in described lens arra (105).
Present invention have the advantage that
1, the light interleaver device of the present invention have that band merit is excellent, temperature stability good, debugging is easy and
The advantage of low cost；
2, for the core component lens selecting wavelength grouping to export in the light interleaver device of the present invention
Array, processing technology is ripe, is easily worked and encapsulates.
Accompanying drawing explanation
Fig. 1, the light interleaver device light channel structure figure of the present invention；
The off-centring of lens unit and output port spaced relationship schematic diagram in Fig. 2, lens arra of the present invention；
The center scattergram of lens unit in Fig. 3 a～Fig. 3 b, lens arra of the present invention；
Fig. 4, the present invention light interleaver device at the light path schematic diagram of port distribution plane；
Fig. 5 a～Fig. 5 b, the light interleaver device port selection course schematic diagram of the present invention；
Wherein:
101: collimation input/output unit；102: expand device；
103: spectro-grating；104: focusing arrangement；
105: lens arra；106: reflecting mirror；
Detailed description of the invention
Below in conjunction with embodiment and accompanying drawing, the invention will be further described.
The light interleaver device that the present invention is suitable for is tied in the light path of the i.e. grating beam splitting plane of Wavelength distribution plane
Composition is concrete as it is shown in figure 1, collimation input/output unit 101, expand device 102, spectro-grating 103, focusing arrangement 104, thoroughly
Lens array 105, reflecting mirror 106 are arranged in order；Collimation input/output unit 101 includes an input port and multiple outfan
Mouthful, the optical signal comprising multiple wavelength enters light interleaver device from input port, and the optical signal of single wavelength is from respectively
Individual corresponding output port exports；The light path process of light interleaver device is specific as follows: input optical signal is through collimation
After input/output unit 101 collimation, then expand through expanding device 102, expand light beam and become through spectro-grating 103 light splitting
By the single channel optical signal of Wavelength distribution, the passage optical signal after spectro-grating 103 is focused on instead by focusing arrangement 104 again
Penetrate mirror 106, and selected different group wavelength to export from each output port specified by the lens arra 105 before reflecting mirror 106.
Described lens arra 105 is made up of the lens unit of multiple corresponding wavelength passages, in the lens of each lens unit
Its incident ray point is deviateed to realize the light through corresponding lens unit with predetermined incident angles to reflecting mirror in heart position
106.As illustrated in fig. 2, it is assumed that in lens arra 105 position, lens centre of a certain lens unit deviate its incident ray point away from
From for d, in lens arra 105, the focal length of lens unit is flens, then the light of this lens unit is passed through to reflecting mirror 106
Incidence angle θ meet relational expression d=flens·tan(θ)；If the port of the wavelength channel output corresponding to this lens unit is to institute
The distance of the input port stating light interleaver device is D, then haveWherein f is the focal length of optical system.
The light interleaver device exported from four output ports with a road flashlight input, point four groups of wavelength below
As a example by, the light interleaver device operation principle of the present invention is described.Output port number can also be more than four, now
Need to adjust the center packet count of lens unit in lens arra 105 so that lens unit packet count is equal to output port
Number.
The corresponding wavelength channel of each lens unit in lens arra 105, the center of each lens unit is permissible
Period profile as shown in Figure 3 a, the center of lens unit divide into four groups at port arragement direction (X-direction), and each group saturating
In mirror unit, the center of each lens unit is identical, and is spaced 3 lens units, and accordingly, wavelength channel is also interval 3
Individual passage divide into four groups: λ1、λ5、λ9...λn-3, λ2、λ6、λ10...λn-2, λ3、λ7、λ11...λn-1, λ4、λ8、λ12...λn；Respectively
The center of individual lens unit can also random distribution as shown in Figure 3 b, figure medium wavelength passage divide into following four groups: λ1、λ4、
λ9...λn-3, λ2、λ7、λ11...λn-2, λ3、λ6、λ10...λn, λ5、λ8、λ12...λn-1.These four groups of wavelength channels are defeated from four respectively
Going out port output, those skilled in the art are it should be understood that wavelength channel number in this four groups of wavelength channels should substantially phase
When or equal；The center selecting the lens unit group corresponding by each group of wavelength channel of output port determines, lens unit
Center distribution be then that the mask plate making link in lens arra processing technology determines, the most again via etching, plating
The techniques such as film complete final lens arra and make.
The light interleaver device that Fig. 4 is suitable for by the present invention at the light path schematic diagram of port distribution plane, five
1. port is set to, 2. from top to bottom ... 5., and flashlight is the most incident from central port, and the lens unit of lens arra 105 is negative
Lens (require to be alternatively plus lens according to design of Optical System).When the minus lens center of a certain group of lens unit is relative to focusing
(situation in Fig. 5 a), incident ray direction after this group lens unit when the center (incident ray center) of device 104 is on the upper side
Become and bow, then be reflected mirror 106 reflection after light from following port the most 1. port export；Minus lens when a certain group of lens unit
Center is relative to (situation in Fig. 5 b), incident ray direction after this group lens unit time under the center deviation of focusing arrangement 104
Become and face upward, then be reflected mirror 106 reflection after light from the most 5. port of port above export.Then pass through and each group of lens unit is set
Position, lens centre can realize the light through each group of lens unit with different incident angles to reflecting mirror 106, continue
And export from different output ports after being reflected mirror reflection, and each group of corresponding one group of wavelength channel of lens unit, it is thus
Achieve the function that different group wavelength exports from different port.
Although the light interleaver device that above only describes the present invention carries out principle and the process of partial wave, according to light
The character that road is reversible, it will be appreciated by those skilled in the art that the light interleaver device using the present invention can enter equally
The conjunction ripple of the multiple wavelength of row, its partial wave closes the wavelength number of ripple and is preferably the multiple of 2, and such as 40,48,80,96 or according to visitor
Other wavelength number of family actual demand.
Although the present invention has been illustrated in detail in and has described a relevant specific embodiment reference, but this area
Technical staff is it should be appreciated that can make various in the form and details in without departing substantially from the spirit and scope of the present invention
Change.These change the protection domain required by claim falling within the present invention.
Claims (10)
1. a light interleaver device, it is characterised in that: the collimation input/output unit (101) that includes being arranged in order,
Expand device (102), spectro-grating (103), focusing arrangement (104), lens arra (105), reflecting mirror (106)；Wherein, described
Spectro-grating (103) will become by multiple single channel optical signals of Wavelength distribution, line focus through the input light light splitting collimating, expanding
Device (104) incides described lens arra (105) after focusing in parallel；Described lens arra (105) is arranged on described
The position of front, the close described reflecting mirror (106) of reflecting mirror (106), described lens arra (105) includes multiple lens unit, often
Its incident ray point is deviateed to realize the light through corresponding lens unit with in advance in the position, lens centre of individual described lens unit
It is incorporated into firing angle and incides described reflecting mirror (106), so that from corresponding output port after the optical signal deviation of different wave length
Output.
A kind of light interleaver device the most according to claim 1, it is characterised in that: every in described lens arra (105)
Distance d that its incident ray point is deviateed in the position, lens centre of individual lens unit is defeated by the wavelength channel corresponding to this lens unit
The port gone out determines to distance D of the input port of described smooth interleaver device, and hasWherein f is light
The focal length of system, flensFor the focal length of respective lens unit in described lens arra (105).
3. according to a kind of light interleaver device of claim 1 or 2, it is characterised in that: from the intersection wavelength-division of same light
The distance of the lens centre deviation incident ray point of the lens unit corresponding to wavelength channel of the output port output of multiplexer
It is set to consistent.
A kind of light interleaver device the most according to claim 3, it is characterised in that: in described lens arra (105) thoroughly
The position, lens centre of mirror unit is grouped according to the output port number of described smooth interleaver device, dividing of lens unit
Group number is identical with output port number.
A kind of light interleaver device the most according to claim 4, it is characterised in that: described lens arra (105)
The corresponding one group of wavelength channel of each group of lens unit, each group of wavelength channel is from the output port output specified.
A kind of light interleaver device the most according to claim 1 and 2, it is characterised in that: described lens arra
(105) each group of lens unit uses fixing lens unit interval to arrange lens centre position distribution, it is possible to as desired
The distribution of lens unit center is arbitrarily set.
A kind of light interleaver device the most according to claim 1, it is characterised in that: described lens arra (105)
Manufacture method be: make the center distribution determining lens unit with mask plate, make thoroughly via etching, plated film the most again
Lens array.
8. a light interleaver device, it is characterised in that: include the collimation input/output unit being arranged in order, expand dress
Put, light-dividing device, focusing arrangement, reflection unit；Input optical signal is after collimation input/output unit collimation, then process expands
Device expands, and expands light beam and becomes by the single channel optical signal of Wavelength distribution through light-dividing device light splitting, through light-dividing device
After single channel optical signal focused on reflection unit by focusing arrangement again；Reflection unit takes a step forward and is provided with lens arra, thoroughly
Lens array is made up of the lens unit of multiple corresponding wavelength passages, and its incident illumination is deviateed in the position, lens centre of each lens unit
Line point is to realize the light through corresponding lens unit with predetermined incident angles to reflection unit, the different group of lens arra selection
Wavelength exports from each output port specified.
A kind of light interleaver device the most according to claim 8, it is characterised in that: described light-dividing device uses light splitting light
Grid (103), reflection unit uses reflecting mirror (106).
A kind of light interleaver device the most according to claim 9, it is characterised in that: each described lens unit saturating
Distance d of its incident ray point is deviateed by the port of the wavelength channel output corresponding to this lens unit to described in mirror center
Distance D of the input port of light interleaver device determines, and hasWherein f is the focal length of optical system,
flensFor the focal length of respective lens unit in described lens arra (105).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610764554.8A CN106199839A (en) | 2016-08-30 | 2016-08-30 | A kind of light interleaver device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610764554.8A CN106199839A (en) | 2016-08-30 | 2016-08-30 | A kind of light interleaver device |
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| CN106199839A true CN106199839A (en) | 2016-12-07 |
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| CN201610764554.8A Pending CN106199839A (en) | 2016-08-30 | 2016-08-30 | A kind of light interleaver device |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107272177A (en) * | 2017-07-04 | 2017-10-20 | 清华大学 | Micro imaging system |
| WO2019080339A1 (en) * | 2017-10-27 | 2019-05-02 | 武汉光迅科技股份有限公司 | Bandwidth-tunable array-type optical filter and method |
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| US20030118281A1 (en) * | 2001-12-07 | 2003-06-26 | Li Chen | Method and system for pass band flattening and broadening of transmission spectra using grating based optical devices |
| CN103364879A (en) * | 2012-03-30 | 2013-10-23 | 福州高意通讯有限公司 | A flat-top optical filter with adjustable bandwidth |
| CN104181640A (en) * | 2014-08-25 | 2014-12-03 | 华中科技大学 | Optical switching module based on liquid crystal variable-focus lens |
| WO2015068356A1 (en) * | 2013-11-08 | 2015-05-14 | 日本電信電話株式会社 | Optical switch |
| CN103197388B (en) * | 2013-04-19 | 2015-09-16 | 武汉邮电科学研究院 | C+L band wavelength selector switch and its implementation and processing unit |
| CN105182474A (en) * | 2015-10-29 | 2015-12-23 | 武汉光迅科技股份有限公司 | Wavelength selection switch |
| CN205080285U (en) * | 2015-08-26 | 2016-03-09 | 山西省交通科学研究院 | N1 wavelength division multiplexer spare based on grating |
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2016
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Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20030118281A1 (en) * | 2001-12-07 | 2003-06-26 | Li Chen | Method and system for pass band flattening and broadening of transmission spectra using grating based optical devices |
| CN103364879A (en) * | 2012-03-30 | 2013-10-23 | 福州高意通讯有限公司 | A flat-top optical filter with adjustable bandwidth |
| CN103197388B (en) * | 2013-04-19 | 2015-09-16 | 武汉邮电科学研究院 | C+L band wavelength selector switch and its implementation and processing unit |
| WO2015068356A1 (en) * | 2013-11-08 | 2015-05-14 | 日本電信電話株式会社 | Optical switch |
| CN104181640A (en) * | 2014-08-25 | 2014-12-03 | 华中科技大学 | Optical switching module based on liquid crystal variable-focus lens |
| CN205080285U (en) * | 2015-08-26 | 2016-03-09 | 山西省交通科学研究院 | N1 wavelength division multiplexer spare based on grating |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107272177A (en) * | 2017-07-04 | 2017-10-20 | 清华大学 | Micro imaging system |
| WO2019080339A1 (en) * | 2017-10-27 | 2019-05-02 | 武汉光迅科技股份有限公司 | Bandwidth-tunable array-type optical filter and method |
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