CN105866941A - Optical filter with bandwidth and wavelength adjustable - Google Patents
Optical filter with bandwidth and wavelength adjustable Download PDFInfo
- Publication number
- CN105866941A CN105866941A CN201610310749.5A CN201610310749A CN105866941A CN 105866941 A CN105866941 A CN 105866941A CN 201610310749 A CN201610310749 A CN 201610310749A CN 105866941 A CN105866941 A CN 105866941A
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- China
- Prior art keywords
- optical
- optical filter
- grating
- mirror
- adjustable
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Classifications
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B26/00—Optical devices or arrangements for the control of light using movable or deformable optical elements
- G02B26/08—Optical devices or arrangements for the control of light using movable or deformable optical elements for controlling the direction of light
- G02B26/0816—Optical devices or arrangements for the control of light using movable or deformable optical elements for controlling the direction of light by means of one or more reflecting elements
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B26/00—Optical devices or arrangements for the control of light using movable or deformable optical elements
- G02B26/08—Optical devices or arrangements for the control of light using movable or deformable optical elements for controlling the direction of light
- G02B26/0808—Optical devices or arrangements for the control of light using movable or deformable optical elements for controlling the direction of light by means of one or more diffracting elements
Abstract
The invention relates to the field of optical filters, in particular to an optical filter with the bandwidth and wavelength adjustable. The optical filter comprises a collimator, an optical grating selection module, multiple optical gratings and multiple adjustable reflectors, wherein the optical grating selection module comprises a first motor and an optical lens connected with the first motor; incident light obtained after the light path is changed enters the corresponding optical grating; each adjustable reflector is arranged behind the corresponding optical grating. The optical filter with the bandwidth and wavelength adjustable is designed, the light patch of the incident light is changed through the optical grating selection module, the incident light enters the corresponding optical grating, and the incident light with the specific wavelength is reflected through the adjustable reflectors arranged behind the corresponding optical gratings, so that bandwidth adjustment and wavelength adjustment of light are achieved; the required bandwidth and wavelength can be selected according to the actual requirements, and the intelligent optical filter is achieved.
Description
Technical field
The present invention relates to optical filter field, be specifically related to the optical filter of a kind of bandwidth and Wavelength tunable.
Background technology
In existing optical system, the optical filter being more particularly set on photo-detector, typically there is band
Wide regulation and wavelength regulation function, with specific reference to Fig. 1, incident light (the light λ 1 of different wave length, λ 2,
λ 3) injected by incident optical 11, enter after sequentially passing through collimating mirror 12, grating 13, quarter wave plate 14
Be mapped on speculum 15, and again by speculum 15 along original optical path path, reflect and be coupled to emergent light
In fine 16.
Wherein, grating 13 not only changes the bandwidth of light, and dispersion occurs simultaneously, then through reflective mirror by spy
The light of standing wave length reflexes in outgoing optical fiber.
But, the grating of above-mentioned optical filter is changeless, and speculum is also changeless simultaneously,
If desired readjust bandwidth or the wavelength of light, need to reinstall the optical filter of Corresponding matching, unfavorable
Portable in optical system uses.
Summary of the invention
The technical problem to be solved in the present invention is, for the drawbacks described above of prior art, it is provided that a kind of bandwidth
And the optical filter of Wavelength tunable, it is achieved the bandwidth of Intelligent adjustment light and wavelength.
The technical solution adopted for the present invention to solve the technical problems is: provide a kind of bandwidth and Wavelength tunable
Optical filter, this optical filter is arranged on the optical circuit path of optical system, and this optical filter includes setting successively
Collimater, the grating put select module, some gratings and some adjustable reflective mirrors, and incident light sequentially passes through standard
Straight device, grating select module and grating incidence in adjustable reflective mirror, and by adjustable reflective mirror by incident light
Injection is reflected by the rightabout in original optical path path；Wherein,
This grating selects module to include the first motor and the optical mirror slip being connected with the first motor, this first motor
Drive optical mirror slip moves, this optical mirror slip according to its motion change the optical circuit path of incident light and incide right
In the grating answered；
This is adjustable, and reflective mirror is separately positioned on the rear of corresponding grating.
Wherein, preferred version is: also include a circulator, and this circulator is arranged on the front of collimater, should
Incident incident light and the reflection light returned through adjustable mirror reflection are separated by circulator.
Wherein, preferred version is: also include an incident optical and outgoing optical fiber, and this incident light passes through incident light
Fibre incides in collimater, and this reflection light is penetrated by outgoing optical fiber.
Wherein, preferred version is: this collimater is collimating mirror.
Wherein, preferred version is: this first motor includes a rotary shaft, and this optical mirror slip is arranged on rotary shaft
On.
Wherein, preferred version is: this optical mirror slip is refracting telescope.
Wherein, preferred version is: this optical mirror slip is the first reflective mirror.
Wherein, preferred version is: these some gratings are arranged for longitudinal class arc.
Wherein, preferred version is: these some gratings are respectively arranged with different grating constants.
Wherein, preferred version is: this is adjustable, and reflective mirror includes the second motor and the second reflective mirror, this second electricity
Machine drives the second reflective mirror upset.
The beneficial effects of the present invention is, compared with prior art, the present invention is by a kind of bandwidth of design and ripple
Long adjustable optical filter, selects module change the optical circuit path of incident light and incide correspondence by grating
In grating, by being arranged on the incident light of the adjustable mirror reflection specific wavelength after corresponding grating, it is achieved right
The bandwidth of incident light and wavelength regulation, and bandwidth and the wavelength needed can be selected according to actual needs, it is achieved intelligence
Can optical filter；Meanwhile, the optical filter by existing many moneys bandwidth is integrally disposed, it is achieved complete function,
Control convenient to operate, reduces use cost simultaneously.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the invention will be further described, in accompanying drawing:
Fig. 1 is the structural representation of existing optical filter；
Fig. 2 is the structural representation of optical filter of the present invention.
Detailed description of the invention
In conjunction with accompanying drawing, presently preferred embodiments of the present invention is elaborated.
As in figure 2 it is shown, the present invention provides the preferred embodiment of a kind of optical filter.
A kind of bandwidth and the optical filter of Wavelength tunable, this optical filter is arranged on the optical circuit path of optical system
On, this optical filter includes that collimater 21, grating select module 22, grating 23 and adjustable reflective mirror 24,
Incident light sequentially passes through collimater 21, grating selects module 22, grating 23 to incide adjustable reflective mirror 24
In, and by adjustable reflective mirror 24 incident light press original optical path path rightabout reflection penetrate, former light
The rightabout in path, road refers to sequentially pass through grating 23, grating selects module 22 and collimater 21 to reflect
Injection.
Specifically:
In the collimater 21 of the present embodiment, collimater 21 is arranged on the incoming position of light, collimater 21
Converge by incident light collimation and by reflection light.Preferably, collimater 21 is collimating mirror.
Grating at the present embodiment selects in module 22, and grating selects module 22 for changing the light of incident light
Path, road is also incided in corresponding grating 23；Wherein, grating selects module 22 to include the first motor
222 and the optical mirror slip 221 that is connected with the first motor 222, this first motor 222 drives optical mirror slip 221
Motion, this changes its optical circuit path through the incident light of optical mirror slip 221 according to the motion of optical mirror slip 221.
Select the bandwidth needed according to actual needs, it is achieved the optical filter collection of intelligent optical wave filter, i.e. many moneys bandwidth
Become to arrange, it is achieved complete function, it is simple to operation controls, and reduces use cost simultaneously.
Further, the first motor 222 includes a rotary shaft, and this optical mirror slip 221 arranges on the rotating shaft,
This rotary shaft drives optical mirror slip 221 to rotate, and changes the light path road of incident light through optical mirror slip 221
Footpath.I.e. optical mirror slip 221 adjusts its angle by rotary shaft.Improve grating and select the operable of module 22
Property, and its simple in construction, it is simple to install and safeguard.
Wherein, optical mirror slip 221 is refracting telescope, preferably prism.Or, optical mirror slip 221 is first
Reflective mirror, by changing the angle of injecting of incident light, thus injection angle when changing its outgoing.
In the grating 23 of the present embodiment, including some gratings 23, change the incident light after optical circuit path and enter
It is mapped in the grating 23 of correspondence.Wherein, incident light changes its bandwidth after grating 23, passes meanwhile
Incident light after grating 23 scatters, and the incident light of different wave length penetrates at different angles.
Preferably, some gratings 23 are that longitudinal class arc is arranged, and specifically, incident light is from optical mirror slip 221
After injection all consistent to the distance on each grating 23, meanwhile, incident light beam strikes is homogeneous to the angle of grating 23
Cause.Improve incident light stability in optical filter.
Further, each grating 23 is respectively arranged with different grating 23 constants, selects according to user,
Adjust the angle of optical mirror slip 221, incident light is injected in the grating 23 of correspondence.
In the adjustable reflective mirror 24 of the present embodiment, adjustable reflective mirror 24 is separately positioned on corresponding grating 23
Rear, this incident light is in grating 23 incides adjustable reflective mirror 24, and this is adjustable, and reflective mirror 24 is used
In the incident light of reflection specific wavelength, and returned by original optical path path.Wherein, adjustable reflective mirror 24 wraps
Including the second motor 242 and the second reflective mirror 241, this second motor 242 drives the second reflective mirror 241 to overturn.
Select the wavelength needed according to actual needs, it is achieved intelligent optical wave filter, it is achieved optical wavelength is adjustable, it is simple to behaviour
Work controls, and reduces use cost simultaneously.
Specifically, owing to the incident light of different wave length is by, after grating 23, penetrating at different angles, and
All incide in adjustable reflective mirror 24；Meanwhile, the second motor 242 controls the second reflective mirror 241 and overturns,
Thus change reflection angle, the incident light (wavelength) of reflection will be needed to reflect.
In the present embodiment, optical filter also includes a circulator, and this circulator is arranged on collimater 21
Front, incident incident light and the reflection light that is reflected back through adjustable reflective mirror 24 are carried out point by this circulator
From.
Further, optical filter also includes an incident optical and outgoing optical fiber, and this incident light passes through incident light
Fibre incides in collimater 21, and this reflection light is penetrated by outgoing optical fiber.Or, incident optical and outgoing
Optical fiber is set directly at the front of collimater 21, it is not necessary to increase circulator.
In the present invention, emphasize reflect light return by original optical path path, but reflection light optical circuit path and
The optical circuit path of incident light has deviation, to ensure that reflection light can be penetrated by outgoing optical fiber.
In the present invention, the first motor 222 in optical filter and the second motor 242 all process with a control
Device connects, and user selects bandwidth and the wavelength of needs by controlling processor.
As described above, only preferred embodiment, it is not intended to limit the scope of the present invention,
All equivalence changes made according to scope of the present invention patent or modification, be all the present invention and contained.
Claims (10)
1. a bandwidth and the optical filter of Wavelength tunable, it is characterised in that: this optical filter is arranged on optics
On the optical circuit path of system, collimater that this optical filter includes setting gradually, grating select module, some
Grating and some adjustable reflective mirrors, incident light sequentially passes through collimater, grating selects module and grating incidence to arrive
In adjustable reflective mirror, and by adjustable reflective mirror, incident light is penetrated by the rightabout in original optical path path
Go out；Wherein,
This grating selects module to include the first motor and the optical mirror slip being connected with the first motor, this first motor
Drive optical mirror slip moves, this optical mirror slip according to its motion change the optical circuit path of incident light and incide right
In the grating answered；
This is adjustable, and reflective mirror is separately positioned on the rear of corresponding grating.
Optical filter the most according to claim 1, it is characterised in that: also including a circulator, this follows
Ring device is arranged on the front of collimater, and this circulator by incident incident light and returns through adjustable mirror reflection
Reflection light separate.
Optical filter the most according to claim 1 and 2, it is characterised in that: also include an incident optical
With outgoing optical fiber, this incident light incides in collimater by incident optical, and this reflection light passes through outgoing optical fiber
Injection.
Optical filter the most according to claim 1, it is characterised in that: this collimater is collimating mirror.
Optical filter the most according to claim 1, it is characterised in that: this first motor includes a rotation
Axle, this optical mirror slip is arranged on the rotating shaft.
Optical filter the most according to claim 1 or 5, it is characterised in that: this optical mirror slip is refraction
Mirror.
Optical filter the most according to claim 1 or 5, it is characterised in that: this optical mirror slip is first
Reflective mirror.
Optical filter the most according to claim 1, it is characterised in that: these some gratings are longitudinal class arc
Shape is arranged.
9. according to the optical filter described in claim 1 or 8, it is characterised in that: these some gratings set respectively
It is equipped with different grating constants.
Optical filter the most according to claim 1, it is characterised in that: this is adjustable, and reflective mirror includes
Two motors and the second reflective mirror, this second driven by motor second reflective mirror overturns.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610310749.5A CN105866941B (en) | 2016-05-11 | 2016-05-11 | A kind of optical filter of bandwidth and Wavelength tunable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610310749.5A CN105866941B (en) | 2016-05-11 | 2016-05-11 | A kind of optical filter of bandwidth and Wavelength tunable |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105866941A true CN105866941A (en) | 2016-08-17 |
| CN105866941B CN105866941B (en) | 2018-11-27 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610310749.5A Active CN105866941B (en) | 2016-05-11 | 2016-05-11 | A kind of optical filter of bandwidth and Wavelength tunable |
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| Country | Link |
|---|---|
| CN (1) | CN105866941B (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN200973093Y (en) * | 2006-09-20 | 2007-11-07 | 中国科学院上海光学精密机械研究所 | UV optical communication system |
| CN201518071U (en) * | 2009-10-23 | 2010-06-30 | 昂纳信息技术（深圳）有限公司 | Adjustable filter |
| CN202182973U (en) * | 2011-07-01 | 2012-04-04 | 昂纳信息技术（深圳）有限公司 | Grating type adjustable filter |
-
2016
- 2016-05-11 CN CN201610310749.5A patent/CN105866941B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN200973093Y (en) * | 2006-09-20 | 2007-11-07 | 中国科学院上海光学精密机械研究所 | UV optical communication system |
| CN201518071U (en) * | 2009-10-23 | 2010-06-30 | 昂纳信息技术（深圳）有限公司 | Adjustable filter |
| CN202182973U (en) * | 2011-07-01 | 2012-04-04 | 昂纳信息技术（深圳）有限公司 | Grating type adjustable filter |
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| Publication number | Publication date |
|---|---|
| CN105866941B (en) | 2018-11-27 |
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Address after: 518000 No. 35, Cuijing Road, Pingshan New District, Shenzhen, Guangdong Patentee after: Ona Technology (Shenzhen) Group Co.,Ltd. Address before: 518000 No. 35, Cuijing Road, Pingshan New District, Shenzhen, Guangdong Patentee before: O-NET COMMUNICATIONS (SHENZHEN) Ltd. |
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