CN1533078A - Wave division multiplex device and its producing method - Google Patents
Wave division multiplex device and its producing method Download PDFInfo
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- CN1533078A CN1533078A CNA031140602A CN03114060A CN1533078A CN 1533078 A CN1533078 A CN 1533078A CN A031140602 A CNA031140602 A CN A031140602A CN 03114060 A CN03114060 A CN 03114060A CN 1533078 A CN1533078 A CN 1533078A
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- optical fiber
- filter
- fiber head
- double optical
- division multiplexer
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Abstract
A WDM device includes a double fiber head, a filter and a single fiber head among which, the said double one includes a contact pin and a collimating lens, the said single one includes a single pin and a collimating lens, the said filter is pasted on the end face of the lens of the double with glue isolated by an air layer. The manufacturing method includes: selecting a filter first and testing its central wavelength then to coat the end face close to the edge of the lens of the double fiber head in space then to paste the said filter on it to form a non-tight air layer between them and to regulate the filter so that it can select the light signal from a fiber of the double one and reflect it to the other fiber of the double then to heat it to stick the glue and put the three devices on an optical collimating position to seal it.
Description
[technical field]
The present invention relates to a kind of wavelength division multiplexer and manufacture method thereof, refer in particular to a kind of filtering type wavelength division multiplexer and manufacture method thereof.
[background technology]
(the Wavelength Division Multiplexer of wavelength division multiplexer in optical communication system, WDM) be used for compound or decomposition different wave length light signal, development along with optical communication technique, the application of wavelength division multiplexer more and more widely, requirement to its optical property and reliability also improves day by day, and the optical property of wavelength division multiplexer largely depends on its package assembly and encapsulation technology etc., and particularly the combination of the double optical fiber head of filter and wavelength division multiplexer is to the influence of the optical property of this wavelength division multiplexer.The combination of existing filter and double optical fiber head is directly to be attached to this filter on the double optical fiber head, as United States Patent (USP) the 6th, 347, No. 170, see also Fig. 1, one wavelength division multiplexer comprises a double optical fiber head 11, one filter 12 and a single fiber head 13, this double optical fiber head 11 comprises a pair of optical fiber contact pins 111 and collimation lens 112, this single fiber head 13 comprises a single fiber contact pin 131 and collimation lens 132, after detecting screening through centre wavelength, this filter 12 is affixed on the collimating lens 112 of double optical fiber head 11 by glue 14, and aim at single fiber head 13 with double optical fiber head 11 in the lump, this combination is directly combined closely double optical fiber head 11 and filter 12, for avoiding the impaired waveform that causes of filter plated film face to be offset, in manufacture process, when the centre wavelength of filter is selected in detection for use, filter is not closely to be affixed on the double optical fiber head, generally speaking, between double optical fiber head and the filter certain intervals is arranged, there is an air layer, because this air layer is to the influence of light refraction, therefore it is different to detect the centre wavelength of gained and centre wavelength that the practical application median filter is close on the double optical fiber head, so the combination of this double optical fiber head and filter makes the center wavelength shift of wavelength division multiplexer bigger, optical property is relatively poor.
Therefore, accurate measuring center wavelength of a kind of energy and optical property be provided wavelength division multiplexer and manufacture method thereof are real preferably and be needs.
[summary of the invention]
Purpose of the present invention mainly is to provide accurate measuring center wavelength of a kind of energy and optical property wavelength division multiplexer and manufacture method thereof preferably.
The objective of the invention is to pass to down that technical scheme realizes: provide a kind of wavelength division multiplexer, it comprises: a double optical fiber head, a filter and a single fiber head, this double optical fiber head comprises a pair of optical fiber contact pins and collimation lens, this single fiber head comprises a single fiber contact pin and collimation lens, this filter is by the collimating lens end face of sticker in double optical fiber head, has an air layer between itself and this double optical fiber head.
The manufacture method of this wavelength division multiplexer may further comprise the steps: select filter earlier for use and detect its centre wavelength; Keep to the side at the end face of the collimating lens of double optical fiber head then and sentence interval mode spot printing one deck glue; Then stick this filter, thereby between double optical fiber head and filter, form a unsealed air layer, adjust filter simultaneously and make it will after filter is selected and reflected, can input to another optical fiber of this double optical fiber head from the light signal of double optical fiber head one optical fiber; Heating makes adhesive curing stablize combining structure then; At last double optical fiber head, filter and single fiber head are positioned on the optical alignment position and encapsulation.
Compared with prior art, the invention has the advantages that: some glue sticks filter again on double optical fiber head, thereby between double optical fiber head and filter, form air layer, light signal enters filter from double optical fiber head after the air layer refraction, or after the air layer refraction, enter double optical fiber head again via filter reflection, this with manufacture process in identical when detecting wavelength division multiplexer centre wavelength, so accurate measuring center wavelength of energy, and then restriction center wavelength shift, the control yield reaches optical property preferably.
[description of drawings]
Fig. 1 be existing wavelength division multiplexer double optical fiber head and filter in conjunction with schematic diagram
Fig. 2 is the schematic diagram of wavelength division multiplexer manufacture method of the present invention when not pasting filter.
Fig. 3 is the schematic diagram of wavelength division multiplexer manufacture method of the present invention when sticking filter.
Fig. 4 is that some glue illustrated before wavelength division multiplexer manufacture method of the present invention was sticked filter.
[embodiment]
Please refer to Fig. 2 and Fig. 3, wavelength division multiplexer of the present invention comprises a double optical fiber head 21, a filter 22 and a single fiber head 23, this double optical fiber head 21 comprises a pair of optical fiber contact pins 211 and collimation lens 212, this single fiber head 23 comprises a single fiber contact pin 231 and collimation lens 232, and this filter 22 is affixed on collimating lens 212 end faces of double optical fiber head 21 by glue 24.
Please together with reference to Fig. 2 and Fig. 4, this glue 24 is end face that spaced points is coated in collimating lens 212 places that keep to the side, and the tool certain thickness, make to form a unsealed air layer between double optical fiber head 21 and the filter 22, wherein this glue 24 can be 353ND glue or other thermoplastics.
Wavelength division multiplexer step of manufacturing of the present invention comprises: select filter earlier for use and detect its centre wavelength, during detection, for avoiding impaired waveform skew, the filter 22 and one of checkout gear double optical fiber head (figure does not show) and a single fiber head (figure does not show) certain space of being separated by of causing of filter 22 plated film faces.Behind inspection center's wavelength, the end face of the collimating lens 212 in double optical fiber head 21 keeps to the side and sentences interval mode spot printing one deck glue 24, and then stick filter 22, thereby form unsealed air layer at double optical fiber head 21 and 22 in filter, adjusting filter 22 simultaneously makes it light signal from double optical fiber head 21 1 optical fiber (indicating) can be able to be inputed to another optical fiber (indicating) of this double optical fiber head 21 after filter 22 is selected and reflected, then heating makes glue 24 curing stablize combining structure, this double optical fiber head 21 at last, filter 22 and single fiber head 23 are on the optical alignment position, and are packaged in the sleeve (figure does not show).
Light signal is to enter filter 22 from double optical fiber head 21 after the air layer refraction, or after the air layer refraction, enter double optical fiber head 21 again via filter 22 reflection, this situation with previous inspection center wavelength is identical, therefore the centre wavelength of measuring gained is consistent with the centre wavelength that is applied to this wavelength division multiplexer, and then restriction center wavelength shift, the control yield reaches optical property preferably.
For avoiding the thermal expansion of air chance to cause glue 24 influenced generation deformation or splitting, point glue mode is painted with good with spaced points, but, this glue mode is not unique execution mode of the present invention, other spot printings can form air layer equally between double optical fiber head 21 and filter 22, so that the practical center wavelength of this wavelength division multiplexer centre wavelength when detecting is consistent.
Claims (10)
1. wavelength division multiplexer, it comprises: a double optical fiber head, a filter and a single fiber head, this double optical fiber head comprises a pair of optical fiber contact pins and collimation lens, this single fiber head comprises a single fiber contact pin and collimation lens, it is characterized in that this filter by the collimating lens end face of sticker, form an air layer between itself and this double optical fiber head in double optical fiber head.
2. wavelength division multiplexer as claimed in claim 1 is characterized in that this glue is the end face of the at interval spot printing collimating lens place that keeps to the side.
3. wavelength division multiplexer as claimed in claim 2 is characterized in that forming between this filter and this double optical fiber head a non-tight air layer.
4. wavelength division multiplexer as claimed in claim 3 is characterized in that this glue is 353ND glue.
5. wavelength division multiplexer as claimed in claim 1 is characterized in that this glue is thermoplastic.
6. a wavelength division multiplexer manufacture method is characterized in that may further comprise the steps: select filter earlier for use and detect its centre wavelength; On double optical fiber head, put gluing then; Then stick this filter, thereby between double optical fiber head and filter, form air layer, adjust filter simultaneously; Heating makes adhesive curing stablize combining structure then; At last double optical fiber head, filter and single fiber head collimation are placed and encapsulation.
7. wavelength division multiplexer manufacture method as claimed in claim 6 is characterized in that this glue point is at the collimating lens end face of this double optical fiber head place that keeps to the side.
8. wavelength division multiplexer manufacture method as claimed in claim 7 is characterized in that this glue is with the interval mode spot printing, makes and forms a unsealed air layer between this double optical fiber head and filter.
9. wavelength division multiplexer manufacture method as claimed in claim 8 is characterized in that adjusting filter and makes it will can input to another optical fiber of this double optical fiber head from the light signal of double optical fiber head one optical fiber after filter is selected and reflected.
10. wavelength division multiplexer manufacture method as claimed in claim 9 is characterized in that double optical fiber head, filter and single fiber head collimation are packaged in the sleeve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB031140602A CN100502275C (en) | 2003-03-26 | 2003-03-26 | Wave division multiplex device and its producing method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB031140602A CN100502275C (en) | 2003-03-26 | 2003-03-26 | Wave division multiplex device and its producing method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1533078A true CN1533078A (en) | 2004-09-29 |
| CN100502275C CN100502275C (en) | 2009-06-17 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB031140602A Expired - Fee Related CN100502275C (en) | 2003-03-26 | 2003-03-26 | Wave division multiplex device and its producing method |
Country Status (1)
| Country | Link |
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| CN (1) | CN100502275C (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101794022A (en) * | 2010-03-15 | 2010-08-04 | 武汉光迅科技股份有限公司 | Pluggable optical filter |
| CN105317798A (en) * | 2014-08-01 | 2016-02-10 | 台山市志高兴五金塑胶有限公司 | Method for installing accessories on PS (Poly Styrene) material furniture |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6347170B1 (en) * | 1999-05-06 | 2002-02-12 | Jds Uniphase, Inc. | Low-cost wavelength division multiplexed (WDM) coupler with more flexible and precise optical faith adjustment |
| US6633701B2 (en) * | 2001-01-16 | 2003-10-14 | Foxconn Optical Technology, Inc. | Method of manufacturing a core collimating assembly for DWDM devices |
-
2003
- 2003-03-26 CN CNB031140602A patent/CN100502275C/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101794022A (en) * | 2010-03-15 | 2010-08-04 | 武汉光迅科技股份有限公司 | Pluggable optical filter |
| CN105317798A (en) * | 2014-08-01 | 2016-02-10 | 台山市志高兴五金塑胶有限公司 | Method for installing accessories on PS (Poly Styrene) material furniture |
Also Published As
| Publication number | Publication date |
|---|---|
| CN100502275C (en) | 2009-06-17 |
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Granted publication date: 20090617 Termination date: 20170326 |
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| CF01 | Termination of patent right due to non-payment of annual fee |