Optical device shell and optical device

Abstract

The utility model belongs to the field of optical devices, and particularly relates to an optical device shell. Comprising a shell body, a containing cabin is constructed in the shell body, the containing cabin comprises a transmitting cavity and a processing cavity, the transmitting cavity is communicated with the processing cavity, and the width of the processing cavity is smaller than that of the transmitting cavity; a signal receiving end can be installed on the side face of the processing cavity. The utility model provides an optical device shell, and aims to solve the problem that an optical device is wide in width in the prior art.

Description

Technical Field

[0001] The utility model belongs to the field of optical devices, and particularly relates to an optical device housing and an optical device. Background Art

[0002] An optical device refers to an optoelectronic device that is used in cooperation with an optical fiber and can perform operations such as modulating, amplifying, and transmitting optical signals. The optical device housing is a part of the optical device, and its internal structure has a chamber for installing relevant components.

[0003] In the prior art, a multi-transmission multi-reception optical device is a type of optical device, which includes two or more signal receiving ends and signal receiving ends. Therefore, in the multi-transmission multi-reception optical device of the prior art, in order to accommodate the signal receiving end and the signal sending end, the optical device housing is usually in the shape of a rectangular box as a whole. When the signal receiving end is installed on the side wall of the optical device housing, the normal width of the optical device is relatively wide. For example: the multi-transmission multi-reception optical device disclosed in the patent application with the application number 202121799889.6 and the name of a miniaturized three-transmission three-reception optical module.

[0004] However, with the development of technology, especially with the upgrade and replacement of equipment (for example: during the 50G PON upgrade process), equipment manufacturers require high-density equipment systems, and have higher requirements for the integration of the entire optical communication system. Therefore, the conventional optical devices in the prior art can gradually no longer meet the usage requirements, and optical devices with a narrower width are needed. Summary of the Utility Model

[0005] The utility model provides an optical device housing, aiming to solve the problem of the relatively wide width of the optical device in the prior art.

[0006] To achieve the above purpose, the utility model provides an optical device housing, including a housing body. An accommodation chamber is internally constructed in the housing body. The accommodation chamber includes a transmission chamber and a processing chamber. The transmission chamber is communicated with the processing chamber, and the width of the processing chamber is smaller than that of the transmission chamber. The signal receiving end can be installed on the side of the processing chamber.

[0007] In this solution, since the width of the processing chamber is smaller than that of the transmission chamber, when the signal receiving end is installed on the side of the processing chamber, the installation position of the signal receiving end can be deeper into the optical device housing, that is, an in-sunk design. Therefore, compared with directly installing the signal receiving end on the outer wall of the optical device housing, the width of the optical device can be narrower, thus solving the deficiencies of the prior art.

[0008] Preferably, for the convenience of installing the signal receiving end, the solution further includes a TO package base, which is installed on the housing body and located on the side of the processing cavity. The front end of the TO package base extends to the side wall of the processing cavity; the TO package base is used for installing the signal receiving end.

[0009] In this solution, a TO package base is provided on the side wall of the optical device housing, and the signal receiving end can be installed on the TO package base, realizing the installation of the signal receiving end on the side wall of the optical device housing. At the same time, since the front end of the TO package base extends to the side wall of the processing cavity, when the signal receiving end is installed on the TO package base, the width of the optical device is smaller.

[0010] Preferably, to meet the requirements of a two-transmitter and two-receiver optical device, two TO package bases are provided in this solution, and the two TO package bases are located on the same side of the processing cavity.

[0011] Since two TO package bases are provided, the two TO package bases can be used for installing two signal receiving ends. At the same time, it is more preferable to install the two TO package bases on the same side of the processing cavity. Compared with installing the TO package bases on both sides, the size of the optical device is smaller when the two TO package bases are installed on one side.

[0012] Alternatively, to meet the practical requirements of optical devices such as three-transmitter and three-receiver optical devices, more than two TO package bases are provided in this solution, and the TO package bases are installed on both sides of the processing cavity.

[0013] Since more than two TO package bases are provided, more than two TO package bases can be used for installing more than two signal receiving ends. At the same time, it is preferable to install more than two TO package bases on both sides of the processing cavity. Compared with installing the TO package bases on the same side, the length of the optical device will not be longer when more than two TO package bases are installed on both sides.

[0014] Preferably, for the convenience of installing components inside the housing body, the housing body in this solution includes a base and a cover, the accommodation chamber is constructed in the base, and the cover is used to close the accommodation chamber.

[0015] In this solution, the optical device housing includes a base and a cover. When the cover is not installed on the base, the accommodation chamber is exposed, facilitating the installation of components inside the base. When the cover closes the base, the components work in a closed environment, which can help avoid external interference, such as water vapor, dust, and condensation of other volatile substances, and has better reliability.

[0016] Preferably, to make the heat dissipation effect of the optical device better, a heat dissipation component is provided at the bottom of the housing body in this solution.

[0017] In this solution, a heat dissipation component is provided at the bottom of the housing body. The heat dissipation component can facilitate the heat dissipation of the optical device and prevent the components inside the optical device from having a higher temperature.

[0018] Preferably, the signal emission module area in the optical device requires more heat dissipation. Therefore, in order to achieve the heat dissipation of the signal emission module, a heat dissipation port is provided at the bottom of the emission cavity described in this solution, and the heat dissipation component is installed at the heat dissipation port.

[0019] In this solution, the heat dissipation component is made of a material with a high thermal conductivity. The heat dissipation component is installed at the bottom of the emission cavity. Therefore, when the signal emission module is installed in the emission cavity, the heat dissipation component can facilitate the heat dissipation of the signal emission module.

[0020] Preferably, in order to achieve the heat dissipation of the optical device, the heat dissipation component described in this solution is a tungsten copper plate.

[0021] To solve the problem of the relatively wide width of the optical device in the prior art, the second aspect of the present utility model provides an optical device, which includes a signal receiving module and the above-mentioned optical device housing, and the signal receiving module is installed on both sides of the optical device housing.

[0022] In this solution, the signal receiving module is installed on the above-mentioned optical device housing. Since the width of the processing cavity of the optical device housing is smaller than the width of the emission cavity, when the signal emission module is installed in the optical device housing, the front end of the signal emission module can be deeper into the optical device housing, making the width of the optical device smaller.

[0023] Preferably, to ensure the normal operation of the optical device, this solution further includes a signal emission module and a wavelength division multiplexing module. The signal emission module is installed in the emission cavity, the wavelength division multiplexing module is installed in the processing cavity, and the signal emission module corresponds to the wavelength division multiplexing module.

[0024] Preferably, according to the different types of optical devices, the signal emission module includes at least two signal emission ends, and the signal receiving module includes at least two signal receiving ends.

[0025] The beneficial effect of the present utility model is that: in this solution, since the width of the processing cavity is smaller than the width of the emission cavity, when the signal receiving end is installed on the side of the processing cavity, the installation position of the signal receiving end can be deeper into the optical device housing. Therefore, compared with directly installing the signal receiving end on the outer wall of the optical device housing, the width of the optical device can be smaller, thus solving the deficiencies of the prior art. Description of the Drawings

[0026] Figure 1 It is a structural schematic diagram of the housing body.

[0027] Figure 2 It is a structural schematic diagram of the base.

[0028] Figure 3 It is a top view of the base.

[0029] Figure 4 It is a schematic diagram of directly installing a signal receiving end to the outer wall of a housing in the prior art.

[0030] Figure 5 It is a schematic diagram of the optical device in Embodiment 2.

[0031] Figure 6 It is a schematic diagram of the transmission of an optical signal used in the optical device in Embodiment 2.

[0032] Figure 7 It is a schematic diagram of a wavelength division multiplexing module in Embodiment 2.

[0033] Reference numerals include: housing body 1, base 11, cover 12, accommodation chamber 2, emission chamber 21, processing chamber 22, TO package base 3, heat dissipation component 4, signal transmission module 5, wavelength division multiplexing module 6, wavelength division multiplexing component 61, light-transmitting prism 611, S1 filtering component 612, S2 filtering component 613, S3 filtering component 614, S4 filtering component 615, S5 filtering component 616, S6 filtering component 617, first filter 62, first reflector 63, second filter 64, second reflector 65, total reflector 66, signal receiving end 7. Detailed implementation manners

[0034] In order to make the objectives, technical solutions and advantages of the embodiments clearer, the following further elaborates on the present invention in conjunction with the accompanying drawings and embodiments. When the following description involves the accompanying drawings, unless otherwise indicated, the same numerals in different drawings represent the same or similar elements. The implementation manners described in the following exemplary embodiments do not represent all implementation manners consistent with the present disclosure. On the contrary, they are merely examples of devices and methods consistent with some aspects of the present disclosure as detailed in the appended claims.

[0035] In the present disclosure, unless otherwise stated, the orientation terms such as "inside, outside" are defined according to the self-profile of the corresponding components. The terms such as "first, second" used in the present disclosure are used to distinguish one element from another, and do not have sequence and importance.

[0036] Embodiment 1

[0037] Basically as shown in the attached Figure 1 figures, an optical device housing includes a housing body 1, and the housing body 1 is made of kovar alloy as a whole, which is convenient for processing and has a low cost. At the same time, an accommodation chamber 2 is constructed inside the housing body 1. The accommodation chamber 2 is a rectangular chamber as a whole, and components can be installed inside the accommodation chamber 2.

[0038] As Figure 1 shown, the housing body 1 specifically includes a base 11 and a cover 12. The base 11 is generally rectangular in shape, and an accommodation chamber 2 is constructed inside the base 11. The cover 12 is installed above the base 11. The cover 12 is in the shape of a rectangular plate and is used to close the top of the accommodation chamber 2, making the inside of the accommodation chamber 2 airtight. When the inside of the accommodation chamber 2 is airtight, the components work more stably inside the accommodation chamber. When implementing the cover 12, it can be installed on the base 11 by means of welding or bonding, etc.

[0039] As Figure 3 shown, the accommodation chamber 2 specifically includes a transmitting cavity 21 and a processing cavity 22. The transmitting cavity 21 is located on the right side of the accommodation chamber 2, and the processing cavity 22 is located on the left side of the accommodation chamber 2. The transmitting cavity 21 and the processing cavity 22 are in a communicating state to ensure that the optical signal can be transmitted normally. The signal transmitting module 5 can be installed in the transmitting cavity 21, the wavelength division multiplexing module 6 can be installed in the processing cavity 22, and the signal receiving module can be installed in a sunken manner on the side of the processing cavity 22.

[0040] In order to facilitate the installation of the signal receiving module on the side of the processing cavity 22, a TO package base 3 is provided on the side wall of the base 11, as Figures 1 to 3 shown. The TO package base 3 can be installed by means of welding or bonding. When the TO package base 3 is installed on the side of the base 11, the front end of the TO package base 3 extends to the side wall position of the processing cavity 22. The TO package base 3 can be used for TO packaging of the signal receiving end 7.

[0041] When the signal receiving end 7 is installed on the TO package base 3, the front end of the signal receiving end 7 will be close to the side wall of the processing cavity 22. Therefore, compared with directly installing the signal receiving end 7 on the outer side wall of the base 11, obviously, when the signal receiving end 7 is installed on the TO package base 3, the front end of the signal receiving end 7 can penetrate deeper into the base 11, thereby reducing the width of the entire optical device. It can also be obtained through comparison Figure 4 and Figure 3 to draw the above conclusion. The dotted line in the figure is the installation position of the signal receiving end.

[0042] According to different optical devices, two or more TO package bases 3 can be installed, which are specifically set as required according to the type of optical device. When there are two TO package bases 3, the two TO package bases 3 are located on the same side of the base 11 (for example, the left side or the right side), and the width of the optical device can be significantly reduced. When there are more than two TO package bases 3 (for example, three), the TO package bases 3 are located on the left and right sides of the base 11 respectively.

[0043] It can be understood that: In this embodiment, a method of installing the signal receiving end 7 by configuring the TO package base 3 is provided, that is, the signal receiving end 7 is installed on the TO package base 3, and the TO package base 3 is installed on the optical device housing. However, in some other embodiments, the TO package base 3 may not be configured, and other methods in the prior art may be used to install the signal receiving end 7. When using other installation methods in the prior art, the front end of the signal receiving end 7 can also extend to the side wall of the processing chamber 22, so that the width of the entire optical device is reduced.

[0044] Since the emission cavity 21 is for installing the signal emission module 5, in order to cool the signal emission module 5, a heat dissipation port is provided at the bottom of the base 11, and a heat dissipation component 4 is installed at the heat dissipation port. The heat dissipation component 4 can be installed at the heat dissipation port by welding and closes the heat dissipation port. The heat dissipation component 4 is preferably a tungsten copper sheet.

[0045] The following is a more detailed description through specific embodiments: When using the optical device housing disclosed in this application, the signal receiving end 7 can be TO packaged and installed on the TO package base 3, and the front end of the signal receiving end 7 is recessed inward. The front end of the signal receiving end 7 can extend deeper into the accommodation chamber 2, and the overall width of the optical device is narrower.

[0046] Embodiment 2

[0047] This embodiment provides an optical device, as Figure 5 shown, including the optical device housing of Embodiment 1, a signal emission module 5, a signal receiving module, and a wavelength division multiplexing module 6.

[0048] The signal emission module 5 can be a signal emission module 5 in the prior art, and the signal emission module 5 is specifically installed inside the emission cavity 21. Depending on the type of optical device, the signal emission module 5 may only include two signal emission ends, or may include more than two signal emission ends, which is not limited in this embodiment.

[0049] Taking the setting of three signal emission ends as an example, as Figure 6 shown: The signal receiving module includes a first signal emission end, a second signal emission end, a third signal emission end, and a beam combiner. The three signal emission ends can be optical chips in the prior art for emitting optical signals. For example: If it is an optical device used for upgrading to 50G, then the three signal emission ends can respectively emit optical signals adapted to the 50G communication rate, optical signals with a 10G communication rate, and optical signals with a communication wavelength of 1.25G G rate. The beam combiner can be a PBS, and the beam combiner is correspondingly arranged for the first signal emission end, the second signal emission end, and the third signal emission end. The PBS is used to combine the three optical signals.

[0050] The multiplexer / demultiplexer module 6 is installed inside the optical device housing, and specifically located in the processing chamber 22. The multiplexer / demultiplexer module 6 is arranged corresponding to the signal transmission module 5.

[0051] Of course, based on the three signal transmission ends in the above example, this embodiment also provides a multiplexer / demultiplexer module 6 that can be used when upgrading to 50G COMBOPON as an example. As Figure 6 shown: The multiplexer / demultiplexer module 6 specifically includes a wavelength division multiplexing component 61, a filter, a mirror, and a total reflection mirror 66. The wavelength division multiplexing component 61 specifically includes a light-transmitting prism 611 and six filtering components. The filtering components can be filter sheets. The six filtering components are respectively an S1 filtering component 612, an S2 filtering component 613, an S3 filtering component 614, an S4 filtering component 615, an S5 filtering component 616, and an S6 filtering component 617. The six filtering components are alternately arranged on the left and right sides of the light-transmitting prism 611. That is: an S2 filtering component, an S4 filtering component, and an S6 filtering component are arranged at the IN end of the light-transmitting prism 611, and an S1 filtering component, an S3 filtering component, and an S5 filtering component are arranged at the COM end of the light-transmitting prism 611. The light-transmitting prism 611 cooperates with the six filtering components to process three optical signals. The three optical signals can be emitted from the S3 filtering component, the S4 filtering component, and the S6 filtering component respectively. That is, the positions where the S3 filtering component, the S4 filtering component, and the S6 filtering component are arranged are the first signal output position, the second signal output position, and the third signal output position. There are specifically two filter sheets, namely a first filter sheet 62 and a second filter sheet 64. The first filter sheet 62 is arranged corresponding to the first signal output position to ensure that the optical signal arranged at the first signal output position is filtered by the first filter sheet 62 and the S3 filtering component together; the second filter sheet 64 is arranged corresponding to the second signal output position to ensure that the optical signal arranged at the second signal output position is filtered by the second filter sheet 64 and the S4 filtering component together.

[0052] After the optical signal exits from the filter, in order to ensure that the optical signal can be introduced into the signal receiving end 7. Therefore, a reflecting mirror is provided corresponding to the filter in this embodiment. The reflecting mirror specifically includes a first reflecting mirror 63 and a second reflecting mirror 65. The first reflecting mirror 63 is provided corresponding to the first filter 62, and the second reflecting mirror 65 is provided corresponding to the second filter 64. Therefore, the optical signal exiting from the first filter 62 is reflected by the first reflecting mirror 63, and finally the optical signal enters the signal receiving end 7; the optical signal exiting from the second filter 64 is reflected by the second reflecting mirror 65, and finally the optical signal enters the signal receiving end 7. Since the second filter 64 is provided at the incident end of the wavelength division multiplexing component 61 and the position occupied by the second filter 64 is relatively large, a filter is not provided corresponding to the third signal output position, but a total reflecting mirror 66 is directly provided corresponding to the third signal output position. The total reflecting mirror 66 is used to reflect the optical signal exiting from the total reflecting mirror 66 into the signal receiving end 7. The optical signal output from the third signal output position is filtered by the S5 filtering component and the S6 filtering component.

[0053] It can be understood that the above only discloses an example of a wavelength division multiplexing module 6 that can be adapted to the optical device housing in Embodiment 1. However, obviously, there are various types of wavelength division multiplexing modules 6 in the prior art. Therefore, other wavelength division multiplexing modules 6 can also be used in other embodiments.

[0054] The signal receiving module is specifically arranged on the outer wall of the optical device housing. According to different types of optical devices, the signal receiving module may include two signal receiving ends 7 or more than two signal receiving ends 7. The signal receiving end 7 can be installed on the TO package base 3 through TO packaging. And when the signal receiving end 7 is installed on the TO package base 3, the front end of the signal receiving end 7 can extend to the inner wall of the signal emitting cavity 21, and the width of the entire optical device is smaller.

[0055] In order to ensure the normal operation of the optical device, in addition to the above-mentioned components, components necessary for the normal operation of conventional optical devices (such as fiber optic adapters and porcelain parts, etc.) can also be installed on the housing. For this part, since there is no change in this application, it will not be elaborated here.

[0056] The above are only the embodiments of the present invention. Common general knowledge such as specific structures and characteristics in the solutions is not described in detail here. It should be noted that for those skilled in the art, without departing from the structure of the present invention, several deformations and improvements can be made, which should also be regarded as the protection scope of the present invention, and these will not affect the implementation effect of the present invention and the practicality of the patent. The protection scope required by this application should be based on the content of its claims, and the specific implementation manners described in the specification can be used to explain the content of the claims.

Claims

1. An optical device housing, characterized in that: It comprises a shell body, wherein a receiving chamber is constructed inside the shell body, wherein the receiving chamber comprises a launching chamber and a processing chamber, wherein the launching chamber is communicated with the processing chamber, and the width of the processing chamber is smaller than the width of the launching chamber; The signal receiving end may be installed at a side of the processing chamber.

2. The optical device housing according to claim 1, characterized in that: It also includes a TO package seat, which is installed on the shell body and located on the side of the processing chamber, and the front end of the TO package seat extends to the side wall of the processing chamber; The TO package seat is used for mounting the signal receiving end.

3. The optical device housing according to claim 2, characterized in that: The number of the TO package seats is two, and the two TO package seats are located on the same side of the processing chamber; or; The number of the TO packaging seats is more than two, and the TO packaging seats are installed on both sides of the processing chamber.

4. The optical device housing according to claim 1, characterized in that: The shell body includes a base and a cover, the accommodating chamber is constructed on the base, and the cover is used to close the accommodating chamber.

5. The optical device housing according to claim 1 or 4, characterized in that: A heat dissipation component is arranged at the bottom of the shell body.

6. The optical device housing according to claim 5, characterized in that: The bottom of the launch cavity is provided with a heat dissipation port, and the heat dissipation component is installed at the heat dissipation port.

7. The optical device housing according to claim 6, characterized in that: The heat dissipation component is a tungsten copper plate.

8. An optical device, characterized in that: It comprises a signal receiving module and the optical device housing according to any one of claims 1 to 7, wherein the signal receiving module is installed on both sides of the optical device housing.

9. The optical device according to claim 8, characterized in that: It also includes a signal transmitting module and a wave splitting and combining module. The signal transmitting module is installed in the transmitting cavity, and the wave splitting and combining module is installed in the processing cavity. The signal transmitting module corresponds to the wave splitting and combining module.

10. The optical device according to claim 9, characterized in that: The signal transmitting module includes at least two signal transmitting terminals, and the signal receiving module includes at least two signal receiving terminals.

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