CN2482283Y - Optic wavelength division multiplex device - Google Patents
Optic wavelength division multiplex device Download PDFInfo
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- CN2482283Y CN2482283Y CN01226570U CN01226570U CN2482283Y CN 2482283 Y CN2482283 Y CN 2482283Y CN 01226570 U CN01226570 U CN 01226570U CN 01226570 U CN01226570 U CN 01226570U CN 2482283 Y CN2482283 Y CN 2482283Y
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- optical fiber
- globe lens
- fiber pigtail
- filter plate
- lens
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Abstract
The utility model discloses a device for light wavelength division. A light signal outputted by a dual-tip optical fiber input terminal/reflect terminal passes through a ball lens, the light signal contains a plurality of light wavelength and a transmission light signal and a reflection light signal are divided on a filter plate; the transmission light signal is passed through another ball lens and outputted by the single-tip optical fiber output terminal, the reflection signal is focused by the ball lens and outputted by the dual-tip fiber input terminal/reflect terminal. The utility model fully utilizes the spherical symmetry and the easy installation performance of the ball lens, the insertion wastage is low, the channel separation is high, the cost is low, the temperature characteristic is good, the echo wave wastage is high, and the structure is dense.
Description
The utility model belongs to technical field of optical fiber communication, relates in particular to a kind of partial wave and wave multiplexer spare of realizing optical wavelength-division multiplex communication.
General light wavelength division multiplexing device can spatially be assigned to the light that contains two wavelength (wavestrip) from an optical fiber in each wavelength band, wherein each wavelength band leads to an independent optical fiber, photo-detector or the like, and perhaps wavelength multiplexer is multiplexed to public optical fiber or other destination to the independent wavelength band that separates.Simple series connection by this device can realize the partial wave of multi-wavelength (wavestrip) and close ripple.
Wavelength division multiplex device is a Primary Component of realizing wavelength division multiplexing communications, and according to realizing principle, light wavelength division multiplexing mainly can be divided into four classes.The first kind is the grating type wavelength division multiplexer, and it adopts the grating beam splitting principle to realize dividing, closing ripple; Second class is an interference thin film type wavelength division multiplexer, and it adopts the filtering principle of film to realize dividing, closing ripple; The 3rd class is the planar waveguide-type wavelength division multiplexer, and it adopts, and the interference of light principle realizes branch, closes ripple in the fiber waveguide; The 4th class is the fiber grating wavelength division multiplexer, and it adopts the filtering principle of fiber grating to realize dividing, closing ripple.Some present wavelength division multiplex devices, particularly often there is the following problem in interference thin film type wavelength division multiplexer: insert the loss height, channel isolation is low, production cost height is not easy in the optical communication network in installation, adjustment etc. in addition.
Goal of the invention of the present utility model provides a kind of wavelength division multiplex device that adopts globe lens as collimation and condenser lens, it can make full use of the spherical symmetry of globe lens and be easy to installation property, and it inserts, and loss is low, the high and low cost of channel isolation, good temp characteristic, return loss height, compact conformation.
To achieve these goals, the utility model provides a kind of device of optical wavelength-division multiplex, comprise two optical fiber pigtail, single optical fiber pigtails and be installed in housing interior lens, filter plate, the both sides that lens are installed in filter plate are corresponding with two optical fiber pigtails, single optical fiber pigtail respectively, its characteristics are: through a globe lens, isolate transmission and two kinds of light signals of reflection by the light signal that contains a plurality of wavelength of described pair of optical fiber pigtail input/reflection end output at described filter plate place; By described single optical fiber pigtail output output, described reflected light signal focuses on through described globe lens again and is exported by the input/reflection end of described pair of optical fiber pigtail described optical signal transmissive through another globe lens.
Above-mentioned device, its characteristics are: also comprise in described housing: loose sleeve pipe, fixing glue, capillary, quartz glass sleeve, gold-plated sleeve pipe, chipware and inner sleeve, described housing is made up of the outer sealing cap and the outer tube that are installed together, described pair of optical fiber pigtail, single optical fiber pigtail is respectively by loose sleeve pipe, fixing glue is connected to described capillary, described capillary is fixed in the described quartz glass sleeve, described quartz glass sleeve is fixed in the described gold-plated sleeve pipe, described globe lens, filter plate is fixed by chipware respectively, and described chipware and described gold-plated sleeve pipe are fixed by inner sleeve.
Above-mentioned device, its characteristics are: have angle or the distance that is used to adjust irrelevance between the axle center of described pair of optical fiber pigtail and the axle center of globe lens, the input end face of described pair of optical fiber pigtail and reflection end face all are positioned on the focal sphere face of described globe lens; Have distance or the angle that is used to adjust the light path trend between the axle center of described single optical fiber pigtail and the axle center of described globe lens, the receiving terminal of described single optical fiber pigtail is on the focal sphere face of described globe lens.
Above-mentioned device, its characteristics are: be coated with AR-Coating on the described globe lens.
Above-mentioned device, its characteristics are: be the plane with described globe lens opposing end faces respectively on described pair of optical fiber pigtail and described single optical fiber pigtail.
Above-mentioned device, its characteristics are: the chipware of fixing described globe lens, filter plate has 3, the part of described filter plate and described globe lens is installed in a chipware of centre, the other part of described capillary and described globe lens is installed in the chipware of both sides.
Above-mentioned device, its characteristics are: on described chipware with described globe lens contact-making surface be taper seat or outside the little arcwall face of imperial palace, described globe lens is fixed by described taper seat or arcwall face.Adopt this structure to be convenient to the installation and the adjustment of globe lens.
Above-mentioned device, its characteristics are: have welding groove on the described inner sleeve, have the scolder of fixedly connected described inner sleeve and described gold-plated sleeve pipe in described welding groove, also have fixing glue between described inner sleeve and the described outer tube.
Above-mentioned device, its characteristics are: the globe lens of the described relatively pair optical fiber pigtail of difference and described single optical fiber pigtail, its radius size can be inequality.
Above-mentioned device, its characteristics are: described filter plate can be long-pass filter plate, short-pass filter plate or narrow bandpass filter plate.
Adopt the light wave subdivision device of said structure, can overcome the problems of the prior art, realized that product design structure optimization and cost of goods manufactured reduce.
Further specify embodiment of the present utility model below in conjunction with accompanying drawing
The structural representation of accompanying drawing 1 a kind of light wave subdivision device of the present utility model
The light path schematic diagram of accompanying drawing 2 devices shown in Figure 1
Accompanying drawing 3 is terminal enlarged diagrams of two optical fiber pigtails
Accompanying drawing 4 is light path schematic diagrames that a kind of optical fiber pigtail adopts the light wave subdivision device of non-wedge shape end face
In Fig. 1, an embodiment of the present utility model is a kind of light wave subdivision device, and it is mainly by two optical fiber pigtails 1, pine sleeve pipe 2,18, outer sealing cap 3,17, glue 4,6,16,20,21, outer tube 5, capillary 7,22, welding annular groove 8, quartz glass sleeve 9,23, gold-plated sleeve pipe 10,24, globe lens 11,25, filter plate 12, chipware 13,14,26, inner sleeve 15, single optical fiber pigtail 19 is formed.
Wherein two optical fiber pigtails 1, single optical fiber pigtail 19, pine sleeve pipe 2, pine sleeve pipe 18 and outer sealing cap 3 outer sealing caps 17 are by glue 4, glue 20 is connected to outer tube 5, connect by glue 6 between two optical fiber pigtails 1 and the capillary 7, on inner sleeve 15, have two places welding annular groove 8, inner sleeve 15 and gold-plated sleeve pipe 10, fixedly connected between 24 by the scolding tin in the welding annular groove 8, capillary 7,22 by quartz glass sleeve 9,24 is fixing, quartz glass sleeve 9 is fixed by gold-plated sleeve pipe 10 again, inner sleeve 15 internal fixation have chipware 13,14,26 and gold-plated sleeve pipe 10,24, glue 16 fixedly connected outer tube 5 and inner sleeves 15.Connect by glue 21 between single optical fiber pigtail 19 and the capillary 22.In assembling process, at first fixedly globe lens 11 and filter plate 12, then by regulating the position of two optical fiber pigtails 1, fixing another one globe lens 25 is then regulated the orientation of single optical fiber pigtail at last, is progressively being fixed when light path meets the requirements.
In Fig. 2, construction unit shown in Figure 3, flashlight λ 1, λ 2 by a plurality of wavelength of the input of two optical fiber pigtails 1/reflection end output, behind globe lens 11 collimations, by the light of filter plate 12 transmission specific wavelengths (wavestrip) and reflect the light of specific wavelength (wavestrip), wherein the distance of filter plate 12 and globe lens 11 and globe lens 25 can be according to actual needs causing that signal can not accept under the situation of deterioration value arbitrarily.The light of filtered 12 reflection, the input/reflection end of two optical fiber pigtails 1 is introduced in the focusing of process globe lens 11, is transferred to suitable destination then.The output end face of two optical fiber pigtails 1 and reception end face are positioned on the focal plane (focal sphere face) of globe lens 11 entirely, and under the situation that the distance of two fibre cores is certain in two optical fiber pigtails 1, the distance of the axis of two fibre cores and globe lens 11 is reasonable distribution according to a certain percentage.The light of filtered 13 transmission is introduced single optical fiber pigtail 19 through the focusing of globe lens 25, is arrived suitable destination by Optical Fiber Transmission again.Wherein the reception end face of optical fiber 19 is positioned on the focal plane (focal sphere face) of globe lens, and the distance of its axial line and globe lens 25 axial lines and angle are adjusted within the specific limits according to the focusing situation (according to the light path trend) of globe lens.In Fig. 3, the input/ reflection end 33,34 of two optical fiber pigtails passes through in glass capillary 7.
In Fig. 4, the structure of device architecture shown in this embodiment and device shown in Figure 3 is identical, the wherein used two optical fiber pigtails 1 and the end face of single optical fiber pigtail 19 are no longer made wedgewise, but because the application of globe lens 11,25, this device has equally than high return loss.
Under the situation that does not deviate from invention thought of the present utility model and substantive features thereof, the structure of this light wave subdivision device can also be through further improving.
Claims (10)
1, a kind of light wavelength division multiplexing device, comprise two optical fiber pigtail, single optical fiber pigtails and be installed in housing interior lens, filter plate, the both sides that lens are installed in filter plate are corresponding with two optical fiber pigtails, single optical fiber pigtail respectively, it is characterized in that: through a globe lens, isolate transmission and two kinds of light signals of reflection at described filter plate place by the light signal that contains a plurality of wavelength of described pair of optical fiber pigtail input/reflection end output; By described single optical fiber pigtail output output, described reflected light signal focuses on through described globe lens again and is exported by the input/reflection end of described pair of optical fiber pigtail described optical signal transmissive through another globe lens.
2, device according to claim 1, it is characterized in that: in described housing, also comprise: loose sleeve pipe, fixing glue, capillary, quartz glass sleeve, gold-plated sleeve pipe, chipware and inner sleeve, described housing is made up of the outer sealing cap and the outer tube that are installed together, described pair of optical fiber pigtail, single optical fiber pigtail is respectively by loose sleeve pipe, fixing glue is connected to described capillary, described capillary is fixed in the described quartz glass sleeve, described quartz glass sleeve is fixed in the described gold-plated sleeve pipe, described globe lens, filter plate is fixed by chipware respectively, and described chipware and described gold-plated sleeve pipe are fixed by inner sleeve.
3, device according to claim 2, it is characterized in that: have angle or the distance that is used to adjust irrelevance between the axle center of described pair of optical fiber pigtail and the axle center of globe lens, the input end face of described pair of optical fiber pigtail and reflection end face all are positioned on the focal sphere face of described globe lens; Have distance or the angle that is used to adjust the light path trend between the axle center of described single optical fiber pigtail and the axle center of described globe lens, the receiving terminal of described single optical fiber pigtail is on the focal sphere face of described globe lens.
4, according to claim 1,2 or 3 described devices, it is characterized in that: be coated with AR-Coating on the described globe lens.
5, according to claim 1,2 or 3 described devices, it is characterized in that: on described pair of optical fiber pigtail and described single optical fiber pigtail, be the plane with described globe lens opposing end faces respectively.
6, device according to claim 2, it is characterized in that: the chipware of fixing described globe lens, filter plate has 3, the part of described filter plate and described globe lens is installed in a chipware of centre, the other part of described capillary and described globe lens is installed in the chipware of both sides.
7, device according to claim 6 is characterized in that: on described chipware with described globe lens contact-making surface be taper seat or outside the little arcwall face of imperial palace, described globe lens is fixed by described taper seat or arcwall face.
8, device according to claim 2, it is characterized in that: have welding groove on the described inner sleeve, in described welding groove, have the scolder of fixedly connected described inner sleeve and described gold-plated sleeve pipe, also have fixing glue between described inner sleeve and the described outer tube.
9, device according to claim 1 is characterized in that: the globe lens of the described relatively pair optical fiber pigtail of difference and described single optical fiber pigtail, its radius size can be inequality.
10, device according to claim 1 is characterized in that: described filter plate can be long-pass filter plate, short-pass filter plate or narrow bandpass filter plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN01226570U CN2482283Y (en) | 2001-06-07 | 2001-06-07 | Optic wavelength division multiplex device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN01226570U CN2482283Y (en) | 2001-06-07 | 2001-06-07 | Optic wavelength division multiplex device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2482283Y true CN2482283Y (en) | 2002-03-13 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN01226570U Expired - Fee Related CN2482283Y (en) | 2001-06-07 | 2001-06-07 | Optic wavelength division multiplex device |
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| CN (1) | CN2482283Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1323304C (en) * | 2003-01-17 | 2007-06-27 | 中国科学院长春光学精密机械与物理研究所 | Multi mould multi-optical fiber power coupler and its preparation method |
| CN103364878A (en) * | 2013-08-05 | 2013-10-23 | 四川飞阳科技有限公司 | Optical wavelength division multiplexing device and shell thereof |
| CN103562765A (en) * | 2011-05-24 | 2014-02-05 | 泰科电子公司 | Truncated ball lens for an expanded beam connector |
| CN104049304A (en) * | 2014-07-04 | 2014-09-17 | 国家电网公司 | Multi-channel bidirectional reversible wavelength division multiplexer |
| CN104570220A (en) * | 2013-10-10 | 2015-04-29 | 菲尼萨公司 | Wavelength division multiplexer array |
-
2001
- 2001-06-07 CN CN01226570U patent/CN2482283Y/en not_active Expired - Fee Related
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1323304C (en) * | 2003-01-17 | 2007-06-27 | 中国科学院长春光学精密机械与物理研究所 | Multi mould multi-optical fiber power coupler and its preparation method |
| CN103562765A (en) * | 2011-05-24 | 2014-02-05 | 泰科电子公司 | Truncated ball lens for an expanded beam connector |
| CN103562765B (en) * | 2011-05-24 | 2017-04-12 | 泰科电子公司 | Truncated ball lens for an expanded beam connector |
| CN103364878A (en) * | 2013-08-05 | 2013-10-23 | 四川飞阳科技有限公司 | Optical wavelength division multiplexing device and shell thereof |
| CN103364878B (en) * | 2013-08-05 | 2015-09-30 | 四川飞阳科技有限公司 | A kind of light wavelength division multiplexing device and housing thereof |
| CN104570220A (en) * | 2013-10-10 | 2015-04-29 | 菲尼萨公司 | Wavelength division multiplexer array |
| CN104570220B (en) * | 2013-10-10 | 2018-04-03 | 菲尼萨公司 | Wavelength division multiplexer array |
| US10007063B2 (en) | 2013-10-10 | 2018-06-26 | Finisar Corporation | Wavelength division multiplexer array |
| CN104049304A (en) * | 2014-07-04 | 2014-09-17 | 国家电网公司 | Multi-channel bidirectional reversible wavelength division multiplexer |
| CN104049304B (en) * | 2014-07-04 | 2016-09-07 | 国家电网公司 | Multichannel bidirectional reversible wave division multiplexer |
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|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |