CN206348479U - A kind of tunable receiver - Google Patents
A kind of tunable receiver Download PDFInfo
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- CN206348479U CN206348479U CN201720017021.3U CN201720017021U CN206348479U CN 206348479 U CN206348479 U CN 206348479U CN 201720017021 U CN201720017021 U CN 201720017021U CN 206348479 U CN206348479 U CN 206348479U
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- light
- etalons
- tunable receiver
- reflecting system
- receiver according
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Abstract
The utility model is related to optic communication device technical field, and more particularly, to a kind of tunable receiver, it includes light-beam transmitter, optical collimator, reflecting system, F P etalons, condenser lens and the photodetector sequentially set along paths direction；Wherein, the multi-wavelength beam launched from light-beam transmitter via optical collimator is converted to collimated light beam, by the deflection angle for adjusting reflecting system, collimated light beam is transmitted on F P etalons with different incidence angles, F P etalon transmissions are incided on photodetector after going out the transmitted light of different wave length corresponding with different incidence angles, transmitted light line focus lens focus.The utility model is reasonable in design, simple in construction, makes simple, with low cost, and incident angle is convenient to be adjusted, and tuning reception is good.
Description
Technical field
The utility model is related to optic communication device technical field, more particularly, to a kind of tunable receiver.
Background technology
Tunable receiver is a kind of wavelength selection sensitive detection parts, for realizing the work(of tunable optic filter plus detector
Energy.TWDM-PON optical fiber telecommunications systems development in recent years is swift and violent, and each ONU is required for using tunable receiver, and it can divide
Dissociation adjusts all wavelengths in wdm system, provides great flexibility and scalability for optical node, is optical network unit
Low cost operation is provided convenience.
The content of the invention
The purpose of this utility model is in view of the shortcomings of the prior art there is provided one kind is reasonable in design, simple in construction, makes
Simply, with low cost, incident angle adjusts convenient, the good tunable receiver of reception.
To achieve the above object, the utility model uses following technical scheme：
A kind of tunable receiver, it is its light-beam transmitter for including sequentially setting along paths direction, optical collimator, anti-
Penetrate system, F-P etalons, condenser lens and photodetector；Wherein, the multi-wavelength beam from light-beam transmitter transmitting is via light
Collimater is converted to collimated light beam, and by adjusting the deflection angle of reflecting system, collimated light beam is transmitted into different incidence angles
On F-P etalons, F-P etalon transmissions go out the transmitted light of different wave length corresponding with different incidence angles, and transmitted light line focus is saturating
Mirror is incided on photodetector after focusing on.
Preferably, the optical collimator is collimation lens.
Preferably, the reflecting system can adjust one-dimensional or two dimension angular.
Preferably, the reflecting system is MEMS mirror or is by motor-driven speculum.
Preferably, the Free Spectral Range of the F-P etalons is more than the wave-length coverage of incident light.
Preferably, the condenser lens is spherical mirror, aspherical mirror or cylindrical mirror.
Preferably, the condenser lens is more than a piece of.
The utility model uses above technical scheme, turns the multi-wavelength beam that light-beam transmitter is launched in optical collimator
It is changed to after collimated light beam, changes the incident angle of collimated light beam by adjusting the deflection angle of reflecting system so that F-P etalons
The transmitted light of different wave length corresponding with different incidence angles is transmitted, transmitted light can all be focused on photodetector by condenser lens
On, so as to realize the function of tunable reception；The utility model employs the humorous F-P etalons of adjustable angle, and is used in combination
The focusing-detection system such as photodetector, can realize the function of tunable reception by the change of incidence angle.
The utility model is reasonable in design, simple in construction, makes simple, with low cost, and incident angle is convenient to be adjusted, and tunes reception
It is good.
Brief description of the drawings
The utility model is described in further details below in conjunction with the drawings and specific embodiments：
Fig. 1 is the structural representation of embodiment 1 of the utility model tunable receiver；
Fig. 2 is the structural representation of embodiment 2 of the utility model tunable receiver.
Embodiment
The utility model is described in further detail with reference to embodiment：
As shown in Fig. 1 or Fig. 2, tunable receiver of the present utility model, it includes sequentially setting along paths direction
Light-beam transmitter, optical collimator, reflecting system, F-P etalons, condenser lens and the photodetector put；Wherein, sent out from light beam
The multi-wavelength beam of emitter transmitting is converted to collimated light beam via optical collimator, by adjusting the deflection angle of reflecting system, will
Collimated light beam is transmitted on F-P etalons with different incidence angles, and F-P etalon transmissions go out different ripples corresponding with different incidence angles
Incided after long transmitted light, transmitted light line focus lens focus on photodetector.
Preferably, the optical collimator is collimation lens.
Preferably, the reflecting system can adjust one-dimensional or two dimension angular.
Preferably, the reflecting system is MEMS mirror or is by motor-driven speculum.
Preferably, the Free Spectral Range of the F-P etalons is more than the wave-length coverage of incident light.
Preferably, the condenser lens is spherical mirror, aspherical mirror or cylindrical mirror.
Preferably, the condenser lens is more than a piece of.
The utility model uses above technical scheme, turns the multi-wavelength beam that light-beam transmitter is launched in optical collimator
It is changed to after collimated light beam, changes the incident angle of collimated light beam by adjusting the deflection angle of reflecting system so that F-P etalons
The transmitted light of different wave length corresponding with different incidence angles is transmitted, transmitted light can all be focused on photodetector by condenser lens
On, so as to realize the function of tunable reception；The utility model employs the humorous F-P etalons of adjustable angle, and is used in combination
The focusing-detection system such as photodetector, can realize the function of tunable reception by the change of incidence angle.
Embodiment 1
As shown in figure 1, tunable receiver of the present utility model, it includes the light beam sequentially set along paths direction
Transmitter 101, collimation lens 102, reflecting system 103, F-P etalons 104, condenser lens 105 and photodetector 106；
The multi-wavelength incident light λ that light-beam transmitter 101 is launched1, λ2... ..., λk(wherein, k is lambda1-wavelength quantity, and
K is integer), it is changed into collimated light beam after collimation lens 102, collimated light beam reflexes to F-P etalons by reflecting system 103
On 104, by the angle that reflecting system 103 is fine-tuned by direction as shown so that collimated light beam is on F-P etalons 104
Incidence angle θiMeet following condition：
2nl cosθi=N λi
In formula, n and l are respectively the cavity refractive index and cavity thickness of F-P etalons 104, and N is integer, i=1,
2 ... ..., k.
From the characteristic of F-P etalons, in the incidence angle θ of some determinationiUnder, corresponding wavelength is λiLight will transmit through F-P
Etalon 104, because the Free Spectral Range of F-P etalons 104 is more than the wave-length coverage (λ of incident lightk-λ1), so its commplementary wave length
Light will be filtered out.
Wavelength is λiLight incide on condenser lens 105, because of the two focus length 2f of condenser lens 105 plane and photoelectricity
The photosurface of detector 106 is overlapped, so wavelength is λiLight focus on photodetector 106.
Need to transmit other wavelength XsjWhen, realize incidence on F-P etalons 104 by adjusting the angle of reflecting system 103
Angle is θj, it is achieved thereby that the function of tunable reception.
Embodiment 2
As shown in Fig. 2 tunable receiver of the present utility model, it includes the light beam sequentially set along paths direction
Transmitter 201, collimation lens 202, reflecting system 203, F-P etalons 204, field lens 205, negative lens 206, the and of positive lens 207
Photodetector 208；
The multi-wavelength incident light λ that light-beam transmitter 201 is launched1, λ2... ..., λk(wherein, k is lambda1-wavelength quantity, and
K is integer), it is changed into collimated light beam after collimation lens 202, collimated light beam reflexes to F-P etalons by reflecting system 203
On 204, by the angle that reflecting system is fine-tuned by direction as shown so that incidence of the collimated light beam on F-P etalons 204
Angle θiMeet following condition：
2nl cosθi=N λi
In formula, n and l are respectively the cavity refractive index and cavity thickness of F-P etalons 204, and N is integer, i=1,
2 ... ..., k.
From the characteristic of F-P etalons, in the incidence angle θ of some determinationiUnder, corresponding wavelength is λiLight will transmit through F-P
Etalon 204, because the Free Spectral Range of F-P etalons 204 is more than the wave-length coverage (λ of incident lightk-λ1), so its commplementary wave length
Light will be filtered out.
Wavelength is λiLight incide on field lens 205 after be focused onto on the back focal plane of field lens 205, due to field lens 205
Back focal plane f1 overlapped with the back focal plane f2 of negative lens 206, so wavelength be λiLight be collimated into directional light.Similarly,
Because the central shaft of field lens 205 is overlapped with the inflexion point of reflecting system 203, wavelength is λ1, λ2... ..., λkAlthough light transmission
Angle is all different, but all can collimate directional light by field lens 205 and negative lens 206.
Wavelength is λiLight incide on positive lens 207, because of focal plane f3 and the light of photodetector 208 of positive lens 207
Quick face is overlapped, so wavelength is λiLight be focused onto on photodetector 208.
Need to transmit other wavelength XsjWhen, realize that incidence angle is on F-P etalons 204 by adjusting the angle of reflecting system
θj, it is achieved thereby that the function of tunable reception.
Above description should not have any restriction to protection domain of the present utility model.
Claims (7)
1. a kind of tunable receiver, it is characterised in that：It includes light-beam transmitter, the light sequentially set along paths direction
Collimater, reflecting system, F-P etalons, condenser lens and photodetector；Wherein, the multi-wavelength launched from light-beam transmitter
Light beam is converted to collimated light beam via optical collimator, and by adjusting the deflection angle of reflecting system, collimated light beam is entered with difference
Firing angle is transmitted on F-P etalons, and F-P etalon transmissions go out the transmitted light of different wave length corresponding with different incidence angles, transmission
Incided after light line focus lens focus on photodetector.
2. a kind of tunable receiver according to claim 1, it is characterised in that：The optical collimator is collimation lens.
3. a kind of tunable receiver according to claim 1, it is characterised in that：The reflecting system can adjust it is one-dimensional or
Person's two dimension angular.
4. a kind of tunable receiver according to claim 1, it is characterised in that：The reflecting system is MEMS mirror
Or for by motor-driven speculum.
5. a kind of tunable receiver according to claim 1, it is characterised in that：The free spectrum of the F-P etalons
Scope is more than the wave-length coverage of incident light.
6. a kind of tunable receiver according to claim 1, it is characterised in that：The condenser lens is spherical mirror, non-
Spherical mirror or cylindrical mirror.
7. a kind of tunable receiver according to claim 1, it is characterised in that：The condenser lens is more than a piece of.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720017021.3U CN206348479U (en) | 2017-01-06 | 2017-01-06 | A kind of tunable receiver |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720017021.3U CN206348479U (en) | 2017-01-06 | 2017-01-06 | A kind of tunable receiver |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206348479U true CN206348479U (en) | 2017-07-21 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201720017021.3U Active CN206348479U (en) | 2017-01-06 | 2017-01-06 | A kind of tunable receiver |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108508554A (en) * | 2018-04-17 | 2018-09-07 | 青岛海信宽带多媒体技术有限公司 | Light-receiving secondary module and optical module |
-
2017
- 2017-01-06 CN CN201720017021.3U patent/CN206348479U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108508554A (en) * | 2018-04-17 | 2018-09-07 | 青岛海信宽带多媒体技术有限公司 | Light-receiving secondary module and optical module |
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| GR01 | Patent grant | ||
| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: 350100 floor 5, building 19, phase II, innovation park, No. 7, middle wulongjiang Avenue, Shangjie Town, Minhou County, Fuzhou City, Fujian Province Patentee after: Fujian Haichuang Photoelectric Technology Co.,Ltd. Address before: 350005 room 505, 5 / F, zone B, Chuangye building, Haixi high tech Industrial Park, high tech Zone, Fuzhou, Fujian Patentee before: FUJIAN HAICHUANG PHOTOELECTRIC CO.,LTD. |