CN205067794U - Adjustable optical attenuator of silica -based silica heat light - Google Patents
Adjustable optical attenuator of silica -based silica heat light Download PDFInfo
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- CN205067794U CN205067794U CN201520835273.8U CN201520835273U CN205067794U CN 205067794 U CN205067794 U CN 205067794U CN 201520835273 U CN201520835273 U CN 201520835273U CN 205067794 U CN205067794 U CN 205067794U
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- optical attenuator
- boss
- adjustable optical
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- silica
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Abstract
The utility model discloses an adjustable optical attenuator of silica -based silica heat light, including tube (1) of metal, adjustable optical attenuator of silica -based silica heat light (5), tube (1) bottom is provided with boss (2), and the boss both ends are provided with recess (6), adopt the utility model discloses the device through increasing the recess at attenuator chip and tube boss both ends, can effectually improve the reliability of coupling terminal surface under wide temperature range of attenuator chip, its simple structure, with low costs, effectual.
Description
Technical field
The utility model relates to a kind of silicon based silicon dioxide thermo-optic tunable optical attenuator, and be specifically related to the adjustable optical attenuator of a kind of wide temperature range, high reliability, the utility model belongs to the communications field.
Background technology
Along with the fast development of electronic technology and the rapid growth of computer techno-stress technology, photoelectron technology is developed gradually.In various photoelectric device, based on the photoelectric device of thermo-optic effect, as thermal-optical type VOA device and photoswitch, little with its size, driving power is low and long-time stability high, is just being subject to increasing attention.But the non-uniform temperature change that the well heater on thermo-optical chip brings, also can affect to the global reliability of device.Especially, when chip works in high temperature environments, chip can be higher with the temperature of the coupling end face of fiber array, thus impact the long-term reliability of device.
Summary of the invention
The purpose of this utility model is the deficiency existed for prior art, provides a kind of adjustable optical attenuator device of wide temperature range high reliability.
The technical scheme that the utility model adopts is:
A kind of silicon based silicon dioxide thermo-optic tunable optical attenuator; comprise Can, adjustable optical attenuator chip; tube shell bottom is provided with boss; boss is bonded with adjustable optical attenuator chip; boss two ends are provided with groove, and the two ends sidewall of shell is provided with the first tail optical fiber protection boss, the second tail optical fiber protection boss.
The width of described boss is greater than adjustable optical attenuator chip size, and length is less than adjustable optical attenuator chip size, and described groove size is less than adjustable optical attenuator chip width.
The height of described first tail optical fiber protection boss, the second tail optical fiber protection boss is lower than boss.
Bonded adhesives between described boss and adjustable optical attenuator chip adopts heat-conducting silicon rubber.
Described first ribbon fiber, the second ribbon fiber adopt glue to be adhered to the first tail optical fiber protection boss, the second tail optical fiber protection boss respectively.
Described glue adopts silicon rubber or epoxy glue.
The utility model device has following advantages:
Adopting the utility model device, by increasing a groove respectively at the two ends of Can boss and adjustable optical attenuator chip abutting edge, the temperature of chip and the end face that is coupled can be effectively reduced, thus improve coupling end face reliability, its structure is simple, and cost is low, effective.
Accompanying drawing explanation
Fig. 1 is the utility model adjustable optical attenuator chip schematic top plan view bonding with Can;
Fig. 2 is the utility model adjustable optical attenuator chip side-looking portion face schematic diagram bonding with Can;
Wherein:
1: shell; 2: boss;
3: the first tail optical fiber protection boss; 4: the second tail optical fiber protection boss;
5: adjustable optical attenuator chip; 6: groove;
7: First Transition block; 8: the first ribbon fibers;
9: the second transition block; 10: the second ribbon fibers;
11: cover plate;
Embodiment
Provide specific embodiment below in conjunction with accompanying drawing, further illustrate the utility model.
As shown in Figure 1 and Figure 2, the utility model comprises shell 1 and the sealing metal cover plate 11 of metal, and sealing metal cover board 11 is fixed on shell 1 by the mode of screw.Be provided with boss 2 bottom shell 1, boss 2 two ends are respectively arranged with a groove 6, and groove 6 width is less than boss 2 width, and position is right against ribbon fiber array.The shape of groove 6 is not fixed, and usually adopts rectangle, can effectively reduce the temperature of chip and the end face that is coupled.Be placed with adjustable optical attenuator chip 5 in shell 1, adjustable optical attenuator chip 5 is fixed on boss 2, and adjustable optical attenuator chip 5 both sides are respectively arranged with First Transition block 7, second transition block 9.Ribbon fiber and chip are by transition block fixed coupling.The sidewall of shell is positioned at input, the port of output is respectively arranged with the first tail optical fiber protection boss 3, second tail optical fiber protection boss 4, and ribbon fiber is adhesively fixed on tail optical fiber protection boss.That is: the first ribbon fiber 8 of adjustable optical attenuator chip 5 input end is fixed on First Transition block 7, the output terminal of adjustable optical attenuator chip 5 is provided with the second ribbon fiber 10, second ribbon fiber 10 is fixed in the second transition block 9, first ribbon fiber 8 of input end is by the first tail optical fiber protection boss 3 on the sidewall of shell 1 one end, second ribbon fiber 10 of output terminal is by the second tail optical fiber protection boss 4 on the other end sidewall of shell 1, adopt heat-conducting silicon rubber bonding between adjustable optical attenuator chip 5 with boss 2, through normal temperature cure, adjustable optical attenuator chip 5 is fixed with Can 1.
Its course of work of this thermo-optic tunable of the utility model optical attenuator is specific as follows: input light enters adjustable optical attenuator chip 5 through the first ribbon fiber 8, adjust output intensity through adjustable optical attenuator chip 5 by thermo-optic effect, export light and exported by the second ribbon fiber 10.First ribbon fiber 8 of input end is by the first tail optical fiber protective casing 3 on the sidewall of shell 1 one end; second ribbon fiber of output terminal is by the second tail optical fiber protective casing 4 on the other end sidewall of shell 1; carry out precision with adjustable optical attenuator chip 5 to be coupled, to realize low insertion loss.
In the utility model, because the encapsulating package of adjustable optical attenuator is fluted with the end that is coupled of fiber array at chip, along with the temperature variation of chip, heat transfer can be hindered in coupling end, therefore greatly can reduce the impact of chip temperature on coupling end face, thus improve the reliability of adjustable optical attenuator in wide temperature range.
Although the utility model has illustrate and described relevant specific embodiment reference in detail, those skilled in the art should be understood that, not deviating from spirit and scope of the present utility model and can make various change in the form and details.These change the protection domain all will fallen into required by claim of the present utility model.
Claims (7)
1. a silicon based silicon dioxide thermo-optic tunable optical attenuator; comprise Can (1), adjustable optical attenuator chip (5); it is characterized in that: shell (1) bottom is provided with boss (2); boss (2) is bonded with adjustable optical attenuator chip (5); boss (2) two ends are provided with groove (6), and the two ends sidewall of shell is provided with the first tail optical fiber protection boss (3), the second tail optical fiber protection boss (4).
2. a kind of silicon based silicon dioxide thermo-optic tunable optical attenuator according to claim 1, it is characterized in that: the width of described boss (2) is greater than adjustable optical attenuator chip (5) size, length is less than adjustable optical attenuator chip (5) size, and described groove (6) size is less than adjustable optical attenuator chip (5) width.
3. a kind of silicon based silicon dioxide thermo-optic tunable optical attenuator according to claim 2, is characterized in that: the height of described first tail optical fiber protection boss (3), the second tail optical fiber protection boss (4) is lower than boss (2).
4. a kind of silicon based silicon dioxide thermo-optic tunable optical attenuator according to claim 1 or 2 or 3, is characterized in that: described adjustable optical attenuator chip (5) two ends are bonded with the first ribbon fiber (8), the second ribbon fiber (10).
5. a kind of silicon based silicon dioxide thermo-optic tunable optical attenuator according to claim 1 or 2 or 3, is characterized in that: the bonded adhesives between described boss (2) and adjustable optical attenuator chip (5) adopts heat-conducting silicon rubber.
6. a kind of silicon based silicon dioxide thermo-optic tunable optical attenuator according to claim 1 or 2 or 3, is characterized in that: described first ribbon fiber (8), the second ribbon fiber (10) adopt glue to be adhered to the first tail optical fiber protection boss (3), the second tail optical fiber protection boss (4) respectively.
7. a kind of silicon based silicon dioxide thermo-optic tunable optical attenuator according to claim 6, is characterized in that: the glue that described first ribbon fiber (8), the second ribbon fiber (10) adopt is silicon rubber or epoxy glue.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520835273.8U CN205067794U (en) | 2015-10-26 | 2015-10-26 | Adjustable optical attenuator of silica -based silica heat light |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520835273.8U CN205067794U (en) | 2015-10-26 | 2015-10-26 | Adjustable optical attenuator of silica -based silica heat light |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205067794U true CN205067794U (en) | 2016-03-02 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520835273.8U Active CN205067794U (en) | 2015-10-26 | 2015-10-26 | Adjustable optical attenuator of silica -based silica heat light |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105739015A (en) * | 2016-04-29 | 2016-07-06 | 武汉光迅科技股份有限公司 | Coupling method of optical fiber and silicon optical chip, and silicon optical chip |
-
2015
- 2015-10-26 CN CN201520835273.8U patent/CN205067794U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105739015A (en) * | 2016-04-29 | 2016-07-06 | 武汉光迅科技股份有限公司 | Coupling method of optical fiber and silicon optical chip, and silicon optical chip |
| CN105739015B (en) * | 2016-04-29 | 2019-08-13 | 武汉光迅科技股份有限公司 | A kind of coupling process and its chip of optical fiber and silicon optical chip |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |