CN203069823U - A double-channel-integrating 2*4 optical add-drop multiplexer - Google Patents
A double-channel-integrating 2*4 optical add-drop multiplexer Download PDFInfo
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- CN203069823U CN203069823U CN 201320003884 CN201320003884U CN203069823U CN 203069823 U CN203069823 U CN 203069823U CN 201320003884 CN201320003884 CN 201320003884 CN 201320003884 U CN201320003884 U CN 201320003884U CN 203069823 U CN203069823 U CN 203069823U
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Abstract
The utility model relates to a double-channel-integrating 2*4 optical add-drop multiplexer comprising a four-fiber reflective collimator and a double-fiber collimator which are connected successively. The four-fiber reflective collimator comprises a four-fiber tail fiber, a first lens, and an optical filter which are connected successively in an axis connection manner. The double-fiber collimator comprises a double-fiber tail fiber and a second lens which are connected successively in an axis connection manner. The four-fiber tail fiber is connected with the phase optical path of the double-fiber tail fiber successively through the first lens, the optical filter, and the second lens. The double-channel-integrating 2*4 optical add-drop multiplexer using such structure comprises the four-fiber tail fiber, the double-fiber tail fiber, and the optical filter and has characteristics of a simple structure, a small size, low cost, and high reliability and cost performance. In addition, not only is the integrated level of the device substantially increased, but also wavelength in a double-channel-integrating 2*4 optical add-drop multiplex may reach 1260 to 1620 nm or even wider. Or a dense wavelength division multiplexer (namely a DWDM type OADM) or a coarse wavelength division multiplexer (namely a CWDM type OADM) can be used. Therefore, the double-channel-integrating 2*4 optical add-drop multiplexer has stable and reliable operative performance and a wide application range.
Description
Technical field
The utility model relates to field of optical networks, and particularly light wavelength division multiplexing system (being wdm system) technical field specifically refers to a kind of two road 2 * 4 integrated optical add/drop multiplexers.
Background technology
In the prior art, along with the continuous development of the communication technology, the popularity rate of Networks of Fiber Communications is more and more higher.
Wherein, most crucial is exactly laser apparatus.In present laser apparatus, in order to use wavelength-division multiplex technique, generally used optical add/drop multiplexer OADM(Optical Add-Drop Multiplexer), at No. two present optical add/drop multiplexers, No. two optical add/drop multiplexer modules of being formed by two 1 * 2 single channel optical add/drop multiplexers.
The integrated level of present optical wavelength-division multiplex equipment is more and more higher, light path is more and more and complicated, module with two single channel optical multiplexers compositions, volume is big, the light loss consumption is big, and assembling process is too loaded down with trivial details, complicated, and performance is also not exclusively reliable simultaneously, thereby has all brought very big inconvenience for people's work and life.
The utility model content
The purpose of this utility model is to have overcome above-mentioned shortcoming of the prior art, provide a kind of integrated level that can significantly improve device, simple in structure, cost is lower, stable and reliable working performance, the scope of application two road integrated 2 * 4 optical add/drop multiplexers comparatively widely.
In order to realize above-mentioned purpose, of the present utility model two road 2 * 4 integrated optical add/drop multiplexers have following formation:
These two road integrated 2 * 4 optical add/drop multiplexers, its principal feature is, described optical add/drop multiplexer comprises four fiber reflection type collimating apparatus and the double-fiber collimators that are linked in sequence, described four fiber reflection type collimating apparatuss comprise four patch cords, first lens and the optical filter that is coupling successively, described double-fiber collimator comprises two patch cords and second lens that are coupling successively, and described four patch cords are connected with described pair of patch cord phase light path by described first lens, optical filter, second lens successively.
Four fiber reflection type collimating apparatuss in these two road integrated 2 * 4 optical add/drop multiplexers also comprise first glass tube that is sheathed on described four patch cords, first lens and optical filter outside successively, all fix bonding by adhesive-layer between outside and described first glass tube of described four patch cords, first lens and optical filter; Described double-fiber collimator also comprises second glass tube that is sheathed on described pair of patch cord and the second lens outside successively, all fixes bonding by adhesive-layer between outside and described second glass tube of the described pair of patch cord and second lens.
The end face of four patch cords in these two road integrated 2 * 4 optical add/drop multiplexers and and the plane of the axis normal of this four patch cord between dihedral angle be 8 °, and this four patch cord comprises four optical fiber, described four optical fiber are according to the quadrate array setting.
In four optical fiber that arrange according to quadrate array in these two road integrated 2 * 4 optical add/drop multiplexers, the distance between the central axis of two adjacent optical fiber is 125 μ m, and the distance between the central axis of two optical fiber at diagonal angle is 176 μ m.
The end face of the two patch cords in these two road integrated 2 * 4 optical add/drop multiplexers and and the plane of the axis normal of this pair patch cord between dihedral angle be 8 °, and this pair patch cord comprises two optical fiber, the plane of described two optical fiber parallel arranged and described dihedral angle place plane parallel or perpendicular.
Distance between the central axis of two optical fiber of the parallel arranged in these two road integrated 2 * 4 optical add/drop multiplexers is 125 μ m.
First lens in these two road integrated 2 * 4 optical add/drop multiplexers are the G-lens lens.
Second lens in these two road integrated 2 * 4 optical add/drop multiplexers are the C-lens lens.
Four fiber reflection type collimating apparatuss in these two road integrated 2 * 4 optical add/drop multiplexers and the outer cover of double-fiber collimator are provided with big glass tube, all fix bonding by adhesive-layer between described four fiber reflection type collimating apparatuss and double-fiber collimator and the described big glass tube.
Two road integrated 2 * 4 optical add/drop multiplexers of this utility model have been adopted, because wherein having adopted four fiber reflection type collimating apparatuss and two optical collimator forms, wherein have four patch cords, two patch cords and optical filter, thereby replaced original OADM module by two 1 * 2 individual devices cascades, simple in structure, volume is little, with low cost, have higher reliability and cost performance, not only significantly improved the integrated level of device, and two the road integrated Optical Add Drop Multiplexer medium wavelength can be 1260～1620nm even wideer, also can be dense wavelength division optical add/drop multiplexer (being DWDM type OADM), or be thick wavelength-division optical add/drop multiplexer (being CWDM type OADM), so stable and reliable working performance, the scope of application is comparatively extensive.
Description of drawings
Fig. 1 a, 1b are the front end four patch cord structural representations of of the present utility model two road integrated 2 * 4 optical add/drop multiplexers.
Fig. 2 is the structural representation of four fiber reflection type collimating apparatuss of the band optical filter of of the present utility model two road integrated 2 * 4 optical add/drop multiplexers.
Fig. 3 a, 3b, 3c are the structural representation of two patch cords of of the present utility model two road integrated 2 * 4 optical add/drop multiplexers.
Fig. 4 is the structural representation of two optical collimators of of the present utility model two road integrated 2 * 4 optical add/drop multiplexers.
Fig. 5 is the full glue encapsulating structure synoptic diagram of of the present utility model two road integrated 2 * 4 optical add/drop multiplexers.
Embodiment
In order more to be expressly understood technology contents of the present utility model, describe in detail especially exemplified by following examples.
See also Fig. 1 to shown in Figure 5, these two road integrated 2 * 4 optical add/drop multiplexers, comprising four fiber reflection type collimating apparatus and the double-fiber collimators that are linked in sequence, described four fiber reflection type collimating apparatuss comprise four patch cords, first lens and the optical filter that is coupling successively, described double-fiber collimator comprises two patch cords and second lens that are coupling successively, and described four patch cords are connected with described pair of patch cord phase light path by described first lens, optical filter, second lens successively.
Wherein, described four patch cords are coupling by described first lens and described optical filter, and described first lens are connected with the described second lens phase light path by described optical filter.
Simultaneously, described four fiber reflection type collimating apparatuss also comprise first glass tube that is sheathed on described four patch cords, first lens and optical filter outside successively, all fix bonding by adhesive-layer between described four patch cords, first lens and optical filter outside and described first glass tube; Described double-fiber collimator also comprises second glass tube that is sheathed on described pair of patch cord and the second lens outside successively, all fixes bonding by adhesive-layer between outside and described second glass tube of the described pair of patch cord and second lens.
Moreover, in these two road integrated 2 * 4 optical add/drop multiplexers, the end face of described four patch cords and and the plane of the axis normal of this four patch cord between dihedral angle be 8 °, and this four patch cord comprises four optical fiber, described four optical fiber are according to the quadrate array setting, in described four optical fiber according to the quadrate array setting, the distance between the central axis of two adjacent optical fiber is 125 μ m, and the distance between the central axis of two optical fiber at diagonal angle is 176 μ m.
Simultaneously, in these two road integrated 2 * 4 optical add/drop multiplexers, the end face of described pair of patch cord and and the plane of the axis normal of this pair patch cord between dihedral angle be 8 °, and this pair patch cord comprises two optical fiber, the plane of described two optical fiber parallel arranged and described dihedral angle place plane parallel or perpendicular; Distance between the central axis of two optical fiber of described parallel arranged is 125 μ m.
Wherein, described first lens are the G-lens lens, and described second lens are the C-lens lens.
Moreover, in these two road integrated 2 * 4 optical add/drop multiplexers, the outer cover of described four fiber reflection type collimating apparatuss and double-fiber collimator is provided with big glass tube, all fixes bonding by adhesive-layer between described four fiber reflection type collimating apparatuss and double-fiber collimator and the described big glass tube.
In the middle of reality was used, of the present utility model two road integrated 2 * 4 optical add/drop multiplexers comprised four fiber reflection type collimating apparatuss, the double-fiber collimator of the band optical filter that is linked in sequence.Four fiber reflection type collimating apparatuss of described band optical filter comprise four bonding successively patch cords, G-lens lens, optical filter, and the other end of this device connects described double-fiber collimator; Described double-fiber collimator is bonded with two patch cords, C-lens lens successively, comprises four patch cords, G-lens lens and optical filter in the four fiber reflection type collimating apparatuss of this band optical filter.
Simultaneously, described four patch cords need 8 ° of angles, and four fibres are wired to square, and described four patch cords adjacent two fine distances are 125 μ m, and diagonal angle two fine spacings are 176 μ m.
Described pair of optical collimator comprises two patch cords, C-lens lens, described pair of patch cord, and two optical fiber lines and 8 ° of angle drop down lineses are perpendicular or parallel two kinds of positions, and the spacing between two optical fiber is 125 μ m.
Four fiber reflection type collimating apparatuss and the described double-fiber collimator of described band optical filter, couple together with glue with described glass tube, four fibres of this four optical fiber collimator can transmit the light of each wavelength up and down, the two fine light (or light of downstream wavelength) that then transmits up wavelength of two fine collimating apparatuss.
See also shown in Fig. 1 a and the 1b, wherein, described four patch cords 1 have appointed positions A, B, four optical fiber of C, D.Wherein, the distance between the central axis of A and B, between the central axis of B and C, between the central axis of C and D, between the central axis of A and D is 125 μ m, and the distance between the central axis of A and C, between the central axis of B and D is 176 μ m.
See also shown in Figure 2 again, described four fiber reflection type collimating apparatus parts, described four patch cords 1, G-lens lens 2, optical filter 3, glass tube 4, four kinds of article are by being coupling mutually with glue curing, wherein, four optical fiber in described four optical collimators are that light path communicates between A-C, the B-D.
See also again shown in Fig. 3 a, 3b, the 3c, described pair of patch cord 5 has two optical fiber of appointed positions a, b, wherein two optical fiber a, b lines are vertical (seeing also shown in Fig. 3 b) or parallel (seeing also shown in Fig. 3 c) two kinds of positions with 8 ° of angle drop down lineses, and the spacing between two optical fiber is 125 μ m.
See also shown in Figure 4ly again, described pair of optical collimator part also comprises: described pair of patch cord 5, C- lens lens 6 and 7, three kinds of article of glass tube are coupling mutually by glue curing is bonding.
See also shown in Figure 5 again, respectively the two optical collimators described in above-mentioned steps 2 described four optical collimators and the step 4 are placed on the adjustment rack, adjust according to the relative photo mathematic(al) parameter, make it two collimating apparatus and under following any one situation, two the road reach the optimum coupling position simultaneously accordingly:
●a-A，b-B；
●a-A，b-D；
●a-B，b-A；
●a-B，b-C；
●a-C，b-B；
●a-C，b-D；
●a-D，b-A；
●a-D，b-C；
At last, connect two collimating apparatus on both sides with big glass tube 8, and charge into glue and fix.
In application of the present utility model, 2 road integrated Optical Add Drop Multiplexer medium wavelengths can be 1260～1620nm even wideer, also can be dense wavelength division optical add/drop multiplexer (being DWDM type OADM), or be thick wavelength-division optical add/drop multiplexer (being CWDM type OADM), specifically can determine according to used optical filter.Having four patch cords and two patch cords because it comprises, is 12 * 4 integrated optical add/drop multiplexer thereby can be become by the module of 21 * 2 device cascade.
Above-mentioned two road 2 * 4 integrated optical add/drop multiplexers have been adopted, because wherein having adopted four fiber reflection type collimating apparatuss and two optical collimator forms, wherein have four patch cords, two patch cords and optical filter, thereby replaced original OADM module by two 1 * 2 individual devices cascades, thereby it is simple in structure, volume is little, with low cost, have higher reliability and cost performance, not only significantly improved the integrated level of device, and two the road integrated Optical Add Drop Multiplexer medium wavelength can be 1260～1620nm even wideer, also can be dense wavelength division optical add/drop multiplexer (being DWDM type OADM), or be thick wavelength-division optical add/drop multiplexer (being CWDM type OADM), so stable and reliable working performance, the scope of application is comparatively extensive.
In this instructions, the utility model is described with reference to its certain embodiments.But, still can make various modifications and conversion obviously and not deviate from spirit and scope of the present utility model.Therefore, instructions and accompanying drawing are regarded in an illustrative, rather than a restrictive.
Claims (9)
1. 2 * 4 integrated optical add/drop multiplexers, it is characterized in that, described optical add/drop multiplexer comprises four fiber reflection type collimating apparatus and the double-fiber collimators that are linked in sequence, described four fiber reflection type collimating apparatuss comprise four patch cords, first lens and the optical filter that is coupling successively, described double-fiber collimator comprises two patch cords and second lens that are coupling successively, and described four patch cords are connected with described pair of patch cord phase light path by described first lens, optical filter, second lens successively.
2. according to claim 1 two road integrated 2 * 4 optical add/drop multiplexers, it is characterized in that, described four fiber reflection type collimating apparatuss also comprise first glass tube that is sheathed on described four patch cords, first lens and optical filter outside successively, all fix bonding by adhesive-layer between described four patch cords, first lens and optical filter outside and described first glass tube; Described double-fiber collimator also comprises second glass tube that is sheathed on described pair of patch cord and the second lens outside successively, all fixes bonding by adhesive-layer between outside and described second glass tube of the described pair of patch cord and second lens.
3. according to claim 1 and 2 two road integrated 2 * 4 optical add/drop multiplexers, it is characterized in that, the end face of described four patch cords and and the plane of the axis normal of this four patch cord between dihedral angle be 8 °, and this four patch cord comprises four optical fiber, and described four optical fiber are according to the quadrate array setting.
4. according to claim 3 two road integrated 2 * 4 optical add/drop multiplexers, it is characterized in that, in described four optical fiber according to the quadrate array setting, distance between the central axis of two adjacent optical fiber is 125 μ m, and the distance between the central axis of two optical fiber at diagonal angle is 176 μ m.
5. according to claim 1 and 2 two road integrated 2 * 4 optical add/drop multiplexers, it is characterized in that, the end face of described pair of patch cord and and the plane of the axis normal of this pair patch cord between dihedral angle be 8 °, and this pair patch cord comprises two optical fiber, the plane of described two optical fiber parallel arranged and described dihedral angle place plane parallel or perpendicular.
6. according to claim 5 two road integrated 2 * 4 optical add/drop multiplexers is characterized in that the distance between the central axis of two optical fiber of described parallel arranged is 125 μ m.
7. according to claim 1 and 2 two road integrated 2 * 4 optical add/drop multiplexers is characterized in that described first lens are the G-lens lens.
8. according to claim 1 and 2 two road integrated 2 * 4 optical add/drop multiplexers is characterized in that described second lens are the C-lens lens.
9. according to claim 1 and 2 two road integrated 2 * 4 optical add/drop multiplexers, it is characterized in that, the outer cover of described four fiber reflection type collimating apparatuss and double-fiber collimator is provided with big glass tube, all fixes bonding by adhesive-layer between described four fiber reflection type collimating apparatuss and double-fiber collimator and the described big glass tube.
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| Application Number | Priority Date | Filing Date | Title |
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| CN 201320003884 CN203069823U (en) | 2013-01-06 | 2013-01-06 | A double-channel-integrating 2*4 optical add-drop multiplexer |
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| Application Number | Priority Date | Filing Date | Title |
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| CN 201320003884 CN203069823U (en) | 2013-01-06 | 2013-01-06 | A double-channel-integrating 2*4 optical add-drop multiplexer |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104049304A (en) * | 2014-07-04 | 2014-09-17 | 国家电网公司 | Multi-channel bidirectional reversible wavelength division multiplexer |
| CN110320605A (en) * | 2019-07-04 | 2019-10-11 | 四川天邑康和通信股份有限公司 | A kind of wavelength division multiplexer production technology |
-
2013
- 2013-01-06 CN CN 201320003884 patent/CN203069823U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN110320605A (en) * | 2019-07-04 | 2019-10-11 | 四川天邑康和通信股份有限公司 | A kind of wavelength division multiplexer production technology |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130717 Termination date: 20220106 |
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