CN1447140A - Z-shaped multiplexer for wavelength divisions - Google Patents
Z-shaped multiplexer for wavelength divisions Download PDFInfo
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- CN1447140A CN1447140A CN 02108102 CN02108102A CN1447140A CN 1447140 A CN1447140 A CN 1447140A CN 02108102 CN02108102 CN 02108102 CN 02108102 A CN02108102 A CN 02108102A CN 1447140 A CN1447140 A CN 1447140A
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Abstract
A Z shape wavelength split multiplex machine includes a middle block, an input end and multiple output ends, in which, the input end has a first casing tube and a collimator set in the casing tube. Every output end has a second casing tube, a filter plate and a collimator and the filter plate and the collimator are in the second casing tube. This invented Z shape wavelength splitter can avoid deflection angle generated between the collimator and filter plate to reduce wavelength deflection at frequency band center resulted from temperature change, and reduce cloage of refractive transition lens and glass casing rings.
Description
Technical field
The present invention relates to a kind of multiplexer for wavelength divisions; Be particularly related to a kind of zigzag multiplexer for wavelength divisions.
Background technology
Figure 1A has shown a kind of skeleton view of known multiplexer for wavelength divisions briefly.In No. the 5th, 859,717, the United States Patent (USP) case a kind of known " Z " font multiplexer for wavelength divisions (zigzag wavelength division multiplexer) is disclosed, shown in Figure 1A.Known zigzag multiplexer for wavelength divisions has a housing 1, and in this housing 1 bracing frame 2 and the one 3, the 24, the 35, the 46, the 57 and the 6th collimating apparatus 8 is set.In bracing frame 2, be provided with one the one 9, the 2 10, the 3 11 and the 4th filter plate 12, and the multiband collimated light beam (multi-channel collimated light) of first collimating apparatus, 3 emissions is substantially with an incident angle incident first filter plate 9.Generally speaking, incident angle is approximately 5 ° to 10 ° scope and is preferably 7 °.In addition, 0.15 ° of audio range frequency that just can cause filter plate to shift out of the every change of incident angle changes.Moreover, when incident angle becomes bigger and bigger, the easier Polarization Dependent Loss shortcoming of (polarizationdependent losses is called for short PDL) that causes.
Though in the United States Patent (USP) case numbers the 5th, 859, No. 717, attempt to fix the position of these collimating apparatuss, shown in Figure 1B with sept (spacer) 13.Yet sept 13 can only be avoided collimating apparatus because the length variations of expanding with heat and contract with cold and producing can't avoid producing between collimating apparatus and the filter plate angle excursion (tilt angle).Therefore, when making because of expanding with heat and contract with cold between collimating apparatus and the filter plate, bonding agent 14 will cause the problem of band center wavelength shift and optical loss or the like when producing angle excursion.
Summary of the invention
In order to solve the problems of the technologies described above, the present invention proposes a kind of zigzag multiplexer for wavelength divisions that includes sleeve pipe, avoids effectively producing angle excursion between collimating apparatus and the filter plate, reduces the band center wavelength shift because of temperature change caused.
Zigzag multiplexer for wavelength divisions of the present invention comprises: an intermediate mass (intermediateblock), an input end and a plurality of output terminal.Input end has one first sleeve pipe and a collimating apparatus, and collimating apparatus is arranged in the first cover shop.Each output terminal has one second sleeve pipe, a filter plate and a collimating apparatus; Wherein collimating apparatus and filter plate all are arranged in second sleeve pipe.
In the above-mentioned conception, it is characterized in that having a fixture in this first sleeve pipe and this fixture leaves an opening, and collimating apparatus is arranged in this first sleeve pipe and is fixed on the fixture.
In the above-mentioned conception, it is another to be characterised in that also have a fixture in this second sleeve pipe and this fixture leaves an opening, and collimating apparatus is arranged in this second sleeve pipe and is fixed on the fixture.According to these characteristics, the filter plate and second sleeve pipe all are fixed in a pad, then output terminal by this spacers on above-mentioned intermediate mass.
In the above-mentioned conception, it one is characterised in that a fixture that has one first tube, one second tube in this second sleeve pipe and have an opening again, and wherein the central axis of the central axis of first tube and second tube forms a set angle.According to this feature, collimating apparatus is arranged in first tube and is fixed on the fixture, and this filter plate is arranged in second tube and is fixed on the fixture.
As from the foregoing, the invention has the advantages that and utilize the fixedly position of collimating apparatus and filter plate of sleeve pipe, avoid producing angle excursion between collimating apparatus and the filter plate.Further, the present invention can reduce the band center wavelength shift that causes because of temperature change.
Another advantage of the present invention is to utilize sleeve pipe fixedly can reduce optical loss in the position of collimating apparatus and filter plate.
For above-mentioned purpose of the present invention, feature and advantage can be become apparent, an embodiment cited below particularly, and conjunction with figs. is described in detail as follows.
Description of drawings
Figure 1A is the skeleton view of known multiplexer for wavelength divisions;
Figure 1B utilizes the fixedly synoptic diagram of collimating apparatus of sept for known multiplexer for wavelength divisions;
Fig. 2 is the top view of zigzag multiplexer for wavelength divisions of the present invention;
Fig. 3 A is the skeleton view of known optical collimating apparatus;
Fig. 3 B is the skeleton view of the input end of zigzag multiplexer for wavelength divisions of the present invention;
Fig. 4 A is the skeleton view of the output terminal of zigzag multiplexer for wavelength divisions of the present invention;
Fig. 4 B is the skeleton view of the another kind of output terminal of zigzag multiplexer for wavelength divisions of the present invention;
Fig. 4 C is second sleeve pipe, one enlarged drawing among Fig. 4 B;
Fig. 5 is the synoptic diagram of the pad of zigzag multiplexer for wavelength divisions of the present invention;
Fig. 6 is the shape synoptic diagram of the pad of zigzag multiplexer for wavelength divisions of the present invention.
Embodiment
Fig. 2 is the top view of zigzag multiplexer for wavelength divisions of the present invention.As shown in Figure 2, zigzag multiplexer for wavelength divisions of the present invention comprises an intermediate mass (intermediate block) 20, one input end 30 and a plurality of output terminal 40a, 40b, 40c, 40d; Wherein input end 30 and a plurality of output terminal 40a, 40b, 40c, 40d are arranged at two side 20a, 20b of intermediate mass 20 respectively.When a multiband light beam (multi-channel light) after input end 30 enters intermediate mass 20, export one first wave band light beam (first-channel beam) λ 1, export one second wave band light beam (second-channel beam) λ 2, export a triband light beam (third-channel beam) λ 3 and by one the 4th output terminal 40d output, one residue wave band light beam (residual-channelbeam) λ 4 by one first output terminal 40a by one the 3rd output terminal 40c by one second output terminal 40b.
Fig. 3 A is the skeleton view of known optical collimating apparatus.As shown in Figure 3A, optics collimator 50 has gradually changed refractive index lens (GRIN lens) 51 and one glass lasso (glassferrule) 52 at least, and has an optical fiber 53 in the glass lasso 52.Known optics collimator 50 more uses a glass tube 54 fixing glass lasso 52 and gradually changed refractive index lens 51 simultaneously.
Fig. 3 B is the skeleton view of the input end of zigzag multiplexer for wavelength divisions of the present invention.Shown in Fig. 3 B, the input end 30 of zigzag multiplexer for wavelength divisions of the present invention has above-mentioned known optics collimator 50 and one first sleeve pipe 60.Have a fixture 61 on these first sleeve pipe, 60 inwalls, and this fixture 61 has an opening 62.Optics collimator 50 is arranged in first sleeve pipe 60, and is fixed on the said fixing thing 61 by a heat reactive resin 70.One opening surface of first sleeve pipe 60 and the central axis of first sleeve pipe form the angle theta of set angle, and wherein the scope of angle theta is preferably 75 °＜θ＜90 °.
Fig. 4 A is the skeleton view of the output terminal of zigzag multiplexer for wavelength divisions of the present invention.Shown in Fig. 4 A, the output terminal 40 of zigzag multiplexer for wavelength divisions of the present invention has gradually changed refractive index lens 41, a glass lasso 42, a filter plate 43, one first pad 44, one second pad 45 and one second sleeve pipe 80.This second sleeve pipe 80 has one first tube 81, one second tube 82 and a fixture 83, and this fixture 83 has in order to be communicated with the opening 84 of first tube 81 and second tube 82.In second sleeve pipe 80, the central axis of first tube 81 is coaxial with the central axis of second tube 82; And the opening surface direction of second tube 82 and the central axis of second tube 82 form set angle, and this angle is identical with the set angle theta that the opening surface and the central axis of first sleeve pipe 60 form.Shown in Fig. 4 A, filter plate 43 is arranged in second tube 82, and by heat reactive resin 70 that the filter plate 43 and second pad 45 is bonding and the opening surface and second pad 45 of second tube 82 is bonding.Gradually changed refractive index lens 41 are arranged in first tube 81, and by heat reactive resin 70 that gradually changed refractive index lens 41 and fixture 83 is bonding.First pad 44 is adhered on the end face 41a of gradually changed refractive index lens 41 by heat reactive resin 70, and glass lasso 42 also is fixed on first pad 44 by heat reactive resin 70.
In above structure, an optics collimator 46 with first pad 44 is arranged in first tube 81, and on being fixed in fixture 83 in second sleeve pipe 80 by heat reactive resin 70.In addition, second sleeve pipe 80 also is fixed on second pad 45 by heat reactive resin 70 with filter plate 43, constitutes the output terminal of zigzag multiplexer for wavelength divisions of the present invention.Shown in Fig. 4 A, the output terminal of zigzag multiplexer for wavelength divisions of the present invention is fixed on the side of intermediate mass 20 by heat reactive resin 70.
Fig. 4 B is the skeleton view of the another kind of output terminal of zigzag multiplexer for wavelength divisions of the present invention, and Fig. 4 C is second sleeve pipe, one enlarged drawing among Fig. 4 B.Shown in Fig. 4 B and Fig. 4 C, the another kind of output terminal of zigzag multiplexer for wavelength divisions of the present invention has gradually changed refractive index lens 41, a glass lasso 42, a filter plate 43, one first pad 44 and one second sleeve pipe 80.This second sleeve pipe 80 has one first tube 81, one second tube 82 and a fixture 83, and this fixture 83 has in order to be communicated with the opening 84 of first tube 81 and second tube 82, in second sleeve pipe 80, the axis L 1 of first tube 81 and the axis L of second tube 82 2 constitute set angle theta '; And axis L 2 form right angles of the opening surface of second tube 82 and second tube 82.Shown in Fig. 4 B, filter plate 43 is arranged in second tube 82, and by heat reactive resin 70 that filter plate 43 and fixture 83 is bonding; Wherein, because the axis L of the axis L 1 of first tube 81 and second tube 82 2 constitutes set angle theta ', make filter plate 43 substantially with the parallel sided of intermediate mass 20.Gradually changed refractive index lens 41 are arranged in first tube 81, and by heat reactive resin 70 that gradually changed refractive index lens 41 and fixture 83 is bonding.First pad 44 is adhered on the end face 41a of gradually changed refractive index lens 41 by heat reactive resin 70, and glass lasso 42 also is fixed on first pad 44 by heat reactive resin 70.So glass lasso 42, first pad 44 and gradually changed refractive index lens 41 constitute the optics collimator 46 with pad.
This optics collimator 46 with pad is arranged in first tube 81, and on being fixed in fixture 83 in second sleeve pipe 80 by heat reactive resin 70.In the above structure, optics collimator 46, second sleeve pipe 80 and filter plate 43 with first pad 44 have constituted the another kind of output terminal of zigzag multiplexer for wavelength divisions of the present invention.Shown in Fig. 4 B, this another kind output terminal is fixed in intermediate mass 20 by heat reactive resin 70.
Fig. 5 is the synoptic diagram of the pad of zigzag multiplexer for wavelength divisions of the present invention.As Fig. 4 A, Fig. 4 B and shown in Figure 5, the thickness t that changes pad 45 is to not influence of penetration loss, but the thickness t of change pad 44 is influential to penetration loss.
Fig. 6 has shown the different shape of pad briefly.As shown in Figure 6, the shape of pad can be circular, square or polygonal hollow geometry.In the present invention, above-mentioned pad can utilize metal, glass or other heatproof indeformable made more than 200 ℃.
Intermediate mass can use solid and transparent substrate, for example glass, quartz; Perhaps use hollow derby.In addition, in the present invention, first casing length of input end substantially equates with known optics collimator.Moreover in the present invention, the first tube degree of depth of second sleeve pipe of output terminal is smaller or equal to the length of gradually changed refractive index lens.
In sum, the present invention utilizes the fixedly position of collimating apparatus and filter plate of sleeve pipe as can be known, can avoid producing angle excursion between collimating apparatus and the filter plate, thereby reduce because of the band center wavelength shift that temperature change caused, and can utilize sleeve pipe fixedly collimating apparatus and filter plate the position and reduce optical loss.
Though the present invention with preferred embodiment openly as above, so it is not that any people who has the knack of this technology is not breaking away from the spirit and scope of the present invention in order to qualification the present invention, and being equal to of being done changed and modification, should be within protection scope of the present invention.
Claims (12)
1, a kind of zigzag multiplexer for wavelength divisions is characterized in that:
Comprise an intermediate mass;
One input end, be fixed in a side of this intermediate mass, this input end comprises: one first sleeve pipe and an optics collimator, this first sleeve pipe has one first fixture and this first fixture has a hole, and the opening surface direction of this first sleeve pipe and the central axial direction of this first sleeve pipe form first angle of set angle; This optics collimator is arranged in this first sleeve pipe and is fixed on this first fixture;
A plurality of output terminals, be individually fixed on two sides of this intermediate mass, and each output terminal comprises: one second sleeve pipe, gradually changed refractive index lens, one first pad, a glass lasso, one second pad and a filter plate, this second sleeve pipe has one first tube, one second tube and has one second fixture of a hole, wherein the central axis of this first tube is coaxial with the central axis of this second tube, and the central axis of the opening surface direction of this second tube and this second tube forms second angle of set angle; These gradually changed refractive index lens are arranged in above-mentioned first tube and are fixed on above-mentioned second fixture; This first pad is fixed in an end face of above-mentioned gradually changed refractive index lens; This glass lasso is fixed on this first pad; This second pad is individually fixed on the side of the opening of second tube of this second sleeve pipe and above-mentioned intermediate mass; This filter plate is arranged in above-mentioned second tube, and is fixed on above-mentioned second pad; And
When a multiband light beam after this input end enters this intermediate mass, export corresponding band light beam by these a plurality of output terminals.
2, zigzag multiplexer for wavelength divisions as claimed in claim 1 is characterized in that the length of described first sleeve pipe is not more than the length of described optics collimator.
3, zigzag multiplexer for wavelength divisions as claimed in claim 1 it is characterized in that described optics collimator is bonding by heat reactive resin and described first fixture, and described first sleeve pipe is also bonding by the side of heat reactive resin and described intermediate mass.
4, zigzag multiplexer for wavelength divisions as claimed in claim 1 is characterized in that the first tube length of described second sleeve pipe is not more than the length of described gradually changed refractive index lens.
5, zigzag multiplexer for wavelength divisions as claimed in claim 1, it is characterized in that described second sleeve pipe is bonding by heat reactive resin and described second pad, described filter plate is bonding by heat reactive resin and described second pad, described gradually changed refractive index lens are bonding by heat reactive resin and described second fixture, described first pad is bonding by heat reactive resin and described gradually changed refractive index lens, described glass lasso is bonding by heat reactive resin and described first pad, and described second pad is also bonding by the side of heat reactive resin and described intermediate mass.
6, zigzag multiplexer for wavelength divisions as claimed in claim 1 is characterized in that circular, square or other polygon of being shaped as of described first pad; Circular, square or other polygon of being shaped as of described second pad.
7, a kind of zigzag multiplexer for wavelength divisions is characterized in that:
Comprise an intermediate mass;
One input end, be fixed in a side of this intermediate mass, this input end comprises: one first sleeve pipe and an optics collimator, this first sleeve pipe has one first fixture and this first fixture has a hole, and the central axial direction of the opening surface direction of this first sleeve pipe and this first sleeve pipe forms first angle of set angle; This optics collimator is arranged in this first sleeve pipe and is fixed on this first fixture;
A plurality of output terminals, be individually fixed on two sides of above-mentioned intermediate mass, and each output terminal comprises: one second sleeve pipe, one gradually changed refractive index lens, one first pad, an one glass lasso and a filter plate, this second sleeve pipe has one first tube, one second tube and have one second fixture of an opening, wherein the central axis of the central axis of this first tube and this second tube forms second angle of set angle, the opening surface direction of this second tube is vertical substantially with the central axis of this second tube, and the opening of this second tube is fixed on the side of above-mentioned intermediate mass; These gradually changed refractive index lens are arranged in this first tube and schedule on this second fixture together; This first spacers is in an end face of these gradually changed refractive index lens; This glass lasso is fixed on this first pad; This filter plate is arranged in above-mentioned second tube, and is fixed on above-mentioned second fixture, makes the parallel sided of this filter plate and above-mentioned intermediate mass; And
When a multiband light beam after this input end enters this intermediate mass, export corresponding band light beam by these a plurality of output terminals.
8, zigzag multiplexer for wavelength divisions as claimed in claim 7 is characterized in that the length of described first sleeve pipe is not more than the length of described optics collimator.
9, zigzag multiplexer for wavelength divisions as claimed in claim 7 it is characterized in that described optics collimator is bonding by heat reactive resin and described first fixture, and described first sleeve pipe is also bonding by the side of heat reactive resin and described intermediate mass.
10, zigzag multiplexer for wavelength divisions as claimed in claim 7 is characterized in that the length of first tube of described second sleeve pipe is not more than the length of described gradually changed refractive index lens.
11, zigzag multiplexer for wavelength divisions as claimed in claim 7, the opening that it is characterized in that described second tube is bonding by the side of heat assimilation resin and described intermediate mass, described filter plate is bonding by heat reactive resin and described second fixture, described gradually changed refractive index lens are bonding by heat reactive resin and described second fixture, described first pad is bonding by heat reactive resin and described gradually changed refractive index lens, and described glass lasso is also bonding by heat reactive resin and described first pad.
12, zigzag multiplexer for wavelength divisions as claimed in claim 7 is characterized in that circular, square or other polygon of being shaped as of described first pad.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02108102 CN1221822C (en) | 2002-03-26 | 2002-03-26 | Z-shaped multiplexer for wavelength divisions |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02108102 CN1221822C (en) | 2002-03-26 | 2002-03-26 | Z-shaped multiplexer for wavelength divisions |
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| Publication Number | Publication Date |
|---|---|
| CN1447140A true CN1447140A (en) | 2003-10-08 |
| CN1221822C CN1221822C (en) | 2005-10-05 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02108102 Expired - Fee Related CN1221822C (en) | 2002-03-26 | 2002-03-26 | Z-shaped multiplexer for wavelength divisions |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1870485B (en) * | 2005-05-24 | 2010-05-26 | 亚洲光学股份有限公司 | Off-axis wavelength division multiplexer |
| CN105652380A (en) * | 2016-03-10 | 2016-06-08 | 苏州伽蓝致远电子科技股份有限公司 | Eight-channel wavelength division multiplexer based on narrow band pass filtering |
| CN105739022A (en) * | 2016-03-18 | 2016-07-06 | 苏州伽蓝致远电子科技股份有限公司 | Compact multichannel optical wavelength division multiplexer of high production efficiency |
| CN105974522A (en) * | 2016-06-16 | 2016-09-28 | 苏州伽蓝致远电子科技股份有限公司 | Low-cost high-production-efficiency compact multichannel optical wavelength division multiplexer |
| CN114815027A (en) * | 2021-01-29 | 2022-07-29 | 波若威科技股份有限公司 | Optical device |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TW201227025A (en) * | 2010-12-29 | 2012-07-01 | Asia Optical Co Inc | Multi-channel optical module |
-
2002
- 2002-03-26 CN CN 02108102 patent/CN1221822C/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1870485B (en) * | 2005-05-24 | 2010-05-26 | 亚洲光学股份有限公司 | Off-axis wavelength division multiplexer |
| CN105652380A (en) * | 2016-03-10 | 2016-06-08 | 苏州伽蓝致远电子科技股份有限公司 | Eight-channel wavelength division multiplexer based on narrow band pass filtering |
| CN105739022A (en) * | 2016-03-18 | 2016-07-06 | 苏州伽蓝致远电子科技股份有限公司 | Compact multichannel optical wavelength division multiplexer of high production efficiency |
| CN105974522A (en) * | 2016-06-16 | 2016-09-28 | 苏州伽蓝致远电子科技股份有限公司 | Low-cost high-production-efficiency compact multichannel optical wavelength division multiplexer |
| CN114815027A (en) * | 2021-01-29 | 2022-07-29 | 波若威科技股份有限公司 | Optical device |
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| Publication number | Publication date |
|---|---|
| CN1221822C (en) | 2005-10-05 |
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Granted publication date: 20051005 Termination date: 20100326 |