Sealed silicon light modulator

Abstract

The utility model relates to the technical field of silicon light modulator components, and discloses a sealed silicon light modulator, which comprises a shell, a modulator and wiring ports, the modulator is fixedly mounted in the shell, the wiring ports are arranged at two ends of the shell, pre-connection ports are mounted in the wiring ports, one end of each pre-connection port is connected with the modulator, and the other end of each pre-connection port is communicated with the outside of the corresponding wiring port. The pre-interface and the wiring port are in sealed connection, the wiring port and the shell are in sealed connection, a top cover is further arranged at the top of the shell, two or more sets of sealing strips are arranged on the top cover, and sealing grooves matched with the sealing strips are formed in the periphery of the shell; according to the utility model, the two ends of the silicon light modulator are connected with the pre-interface and then connected to the wiring port through the switching of the pre-interface, so that the air tightness of the wiring port is improved, and meanwhile, the sealing strip is arranged between the top cover and the shell, so that the air tightness between the top cover and the shell can be effectively improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to silicon light modulator assembly technical field, concretely is a sealed silicon light modulator. BACKGROUND

[0002] The silicon light modulator is an optical device based on the principle of silicon photonics. It is usually composed of an electrical modulator, an optical waveguide, and electrodes, among which the electrical modulator and the chip are the core components of the silicon light modulator, and they play a decisive role in its performance. Compared with other modulators, the silicon light modulator has the advantages of fast modulation rate, low transmission loss, high signal-to-noise ratio, low operating cost, and small driving voltage, and is widely used in many fields such as optical communication systems, optical computing, and optical networks. The sealing performance is a key factor in the design and manufacturing process of the silicon light modulator housing.

[0003] The sealing performance not only affects the performance and stability of the silicon light modulator, but also directly relates to its service life and reliability. If the sealing performance is poor during packaging, the electronic components and optical components inside the silicon light modulator may be damp or contaminated, and the aging and damage of the internal components of the silicon light modulator will be accelerated. At the same time, if the existing silicon light modulator housing has a problem of reduced air tightness, it is usually not intuitive to observe, so that when the air tightness problem occurs, it cannot be detected in time, resulting in damage to the silicon light modulator. SUMMARY

[0004] (I) The technical problem solved: In view of the deficiencies of the prior art, the utility model provides a sealed silicon light modulator, which has the advantages of strong housing sealing performance and can intuitively observe the air tightness state, solves the problem of low air tightness of the existing housing, and cannot detect in time when the air tightness changes.

[0005] (II) Technical scheme: In order to achieve the purpose of strong housing sealing performance and intuitive observation of air tightness state, the utility model provides the following technical scheme: a sealed silicon light modulator, comprising a housing, a modulator, and a wiring port, the modulator is fixedly installed in the housing, the housing is provided with the wiring port at both ends, the pre-interface is installed in the wiring port, one end of the pre-interface is connected with the modulator, the other end of the pre-interface is communicated with the wiring port, and the pre-interface and the wiring port are sealingly connected, and the wiring port and the housing are sealingly connected, the top of the housing is further provided with a top cover, the top cover is provided with two groups and more than two sealing strips, and the housing is provided with a sealing groove matched with the sealing strip.

[0006] Preferably, the sealing strip is provided with two groups and more than two groups, and the two ends of the housing and the top cover are fixedly connected by bolts.

[0007] Preferably, the shell is further fixedly provided with an expansion air bag, a gas inlet is arranged at the bottom of the expansion air bag, the gas inlet penetrates through the shell and is in sealed connection with the shell, a differential pressure valve is further fixedly connected to the top of the expansion air bag, one end of the differential pressure valve is in communication with the inside of the expansion air bag, and the other end of the differential pressure valve is in communication with the inside of the shell.

[0008] Preferably, the shell is further fixedly provided with an expansion air bag, a gas inlet is arranged at the bottom of the expansion air bag, the gas inlet penetrates through the shell and is in sealed connection with the shell, a differential pressure valve is further fixedly connected to the top of the expansion air bag, one end of the differential pressure valve is in communication with the inside of the expansion air bag, and the other end of the differential pressure valve is in communication with the inside of the shell.

[0009] Preferably, the shell is further fixedly provided with an expansion air bag, a gas inlet is arranged at the bottom of the expansion air bag, the gas inlet penetrates through the shell and is in sealed connection with the shell, a differential pressure valve is further fixedly connected to the top of the expansion air bag, one end of the differential pressure valve is in communication with the inside of the expansion air bag, and the other end of the differential pressure valve is in communication with the inside of the shell.

[0010] Preferably, the shell is further fixedly provided with an expansion air bag, a gas inlet is arranged at the bottom of the expansion air bag, the gas inlet penetrates through the shell and is in sealed connection with the shell, a differential pressure valve is further fixedly connected to the top of the expansion air bag, one end of the differential pressure valve is in communication with the inside of the expansion air bag, and the other end of the differential pressure valve is in communication with the inside of the shell.

[0011] (Three) beneficial effects: compared with the prior art, the utility model provides a sealed silicon optical modulator, has the following beneficial effects:

[0012] 1. The sealed silicon optical modulator, by the cooperation of the pre-interface structure and the top cover structure, connects the two ends of the silicon optical modulator with the pre-interface, and connects the pre-interface to the wiring port through the switching of the pre-interface, improves the air tightness of the wiring port position, and the sealing strip arranged between the top cover and the shell can effectively improve the air tightness between the top cover and the shell.

[0013] 2. The sealed silicon optical modulator, by the cooperation of the expansion air bag structure and the differential pressure valve structure, when the expansion air bag expands and is greater than the external pressure, the external gas can be prevented from entering the shell through the tiny gap or permeation path on the shell, thereby improving the internal pressure of the shell and enhancing the air tightness of the shell, and reducing the entry of external gas into the shell, when the internal gas of the shell leaks, the internal pressure decreases, the differential pressure valve balances the pressure in the expansion air bag and the shell, the gas in the expansion air bag flows into the shell, thereby making the expansion air bag contract, so as to maintain the air tightness of the shell, and due to the contraction of the expansion air bag, the high-contrast color differential pressure valve can be observed through the transparent window at this time to prompt the change of the air tightness of the shell, thereby playing a reminding role. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 It is a three-dimensional structure schematic view of the sealed silicon optical modulator in the utility model;

[0015] Figure 2 It is a structure front view of the sealed silicon optical modulator in the utility model;

[0016] Figure 3A structure side view of the sealed silicon optical modulator of the utility model;

[0017] Figure 4 For Figure 3 A-A direction section view in the middle of the utility model;

[0018] Figure 5 For Figure 2 B-B direction section view in the middle of the utility model;

[0019] Figure 6 For Figure 4 N in the middle of the utility model partial detail view;

[0020] Figure 7 For Figure 5 M in the middle of the utility model partial detail view.

[0021] In the drawing: 1, shell; 2, modulator; 3, wiring port; 4, pre-interface; 5, top cover; 6, sealing strip; 7, sealing groove; 8, inflatable air bag; 9, inflation port; 10, differential pressure valve; 11, limit plate; 12, transparent window. DETAILED DESCRIPTION

[0022] The technical scheme in the embodiments of the utility model will be described clearly and completely below in conjunction with the drawings in the embodiments of the utility model, obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the person skilled in the art without creative labor belong to the protection scope of the utility model.

[0023] Please refer to Figures 1-7A sealed silicon optical modulator, comprising a shell 1, a modulator 2, a wiring port 3, the modulator 2 is fixedly installed in the shell 1, the shell 1 is provided with the wiring port 3 at both ends, the pre-interface 4 is installed in the wiring port 3, the pre-interface 4 is designed to be installed in the wiring port 3 mainly to provide a switching mechanism, so that the output / input signal of the silicon optical modulator 2 can be conveniently connected to the external wiring port 3. The pre-interface 4 plays the role of a bridge, simplifying the connection process of the silicon optical modulator 2 and the wiring port 3. One end of the pre-interface 4 is connected to the modulator 2, and the other end of the pre-interface 4 is connected to the wiring port 3. Such a design is to ensure that the signal of the silicon optical modulator 2 can be accurately transmitted to the external device. One end of the pre-interface 4 is directly connected to the modulator 2, which can ensure the integrity and accuracy of the signal; and the other end is connected to the wiring port 3, which enables external devices or lines to be easily accessed, thereby forming a complete signal transmission link. And the pre-interface 4 and the wiring port 3 are sealingly connected, and the wiring port 3 and the shell 1 are sealingly connected. The sealing connection between the pre-interface 4 and the wiring port 3 and the sealing connection between the wiring port 3 and the shell 1 are mainly to improve the air tightness of the entire silicon optical modulator 2. The shell 1 is further provided with a top cover 5, and the top cover 5 is provided with two or more sealing strips 6, and the sealing strip 6 is flexible, which can further enhance the air tightness of the silicon optical modulator 2. The flexible sealing strip 6 can be tightly attached to the gap between the shell 1 and the top cover 5, thereby preventing external gas or impurities from entering the shell 1. At the same time, the design of multiple sealing strips 6 also provides additional security. Even if one of the sealing strips 6 is damaged or aged, the other sealing strips 6 can still function. The shell 1 is provided with a sealing groove 7 matching the sealing strip 6. This can ensure that the sealing strip 6 can be accurately installed on the shell 1 and form a tight fit.

[0024] Please refer to Figures 1-7The sealing strip 6 is provided in two groups or more, and the shell 1 and the top cover 5 are fixedly connected at both ends by bolts. The design of two groups or more of sealing strips 6 is to provide multiple sealing protection and ensure the air tightness of the shell 1. Even if one group of sealing strips 6 fails due to aging or damage, the other sealing strips 6 can still continue to function to prevent external gas or impurities from entering the inside of the shell 1. At the same time, the shell 1 and the top cover 5 are fixedly connected at both ends by bolts, which can further enhance the structural strength and sealing performance of the shell 1, and ensure that it will not loosen or leak during long-term use. The shell 1 is also fixedly provided with an inflatable air bag 8. The inflatable air bag 8 is to form a variable pressure environment inside the shell 1, so as to enhance the air tightness of the shell 1 by adjusting the internal pressure. When the internal pressure of the shell 1 is higher than the external pressure, a barrier can be formed to prevent external gas from entering the shell 1 through small gaps or infiltration paths. The inflatable air bag 8 is provided with an inflation port 9 at the bottom, and the inflation port 9 penetrates the shell 1 and is sealingly connected with the shell 1. The inflation port 9 is provided to facilitate inflation of the inflatable air bag 8 to adjust the internal pressure. At the same time, by ensuring the sealing connection between the inflation port 9 and the shell 1, gas leakage to the outside of the shell 1 during inflation can be prevented, thereby maintaining the stability of the pressure inside the shell 1. The inflatable air bag 8 is also fixedly connected with a pressure difference valve 10 at the top. The pressure difference valve 10 can automatically adjust the pressure inside the inflatable air bag 8 to keep it balanced with the internal pressure of the shell 1. One end of the pressure difference valve 10 communicates with the inside of the inflatable air bag 8, and the other end of the pressure difference valve 10 communicates with the inside of the shell 1. The top cover 5 is provided with a transparent window 12 at both ends, which matches the position of the inflatable air bag 8. The length of the transparent window 12 is less than the length of the inflatable air bag 8 after complete inflation. The transparent window 12 is provided to facilitate observation of the inflation state of the inflatable air bag 8 and the change of the air tightness inside the shell 1. The pressure difference valve 10 is coated with high-contrast color paint. The pressure difference valve 10 is coated with high-contrast color paint to make it easier to identify the position of the pressure difference valve 10 when the pressure inside the shell 1 changes. The shell 1 is provided with a limiting plate 11 to limit the inflation direction of the inflatable air bag 8. The limiting plate 11 is designed to ensure that the inflatable air bag 8 does not over-expand or deviate from the predetermined direction during inflation. The wiring port 3 and the shell 1 are in an integrated structure. The integrated structure design between the wiring port 3 and the shell 1 improves the overall structural strength and sealing performance of the silicon light modulator 2.

[0025] Working principle: when using, the silicon light modulator 2 is fixedly installed in the shell 1, meanwhile, the silicon light modulator 2 is connected at both ends to the pre-interface 4, and the top cover 5 is installed on the shell 1, wherein the sealing strip 6 is clamped between the sealing groove 7 and the shell 1 to form a sealed environment in the shell 1. Since the utility model is connected at both ends of the silicon light modulator 2 to the pre-interface 4, and connected to the wiring port 3 through the switching of the pre-interface 4, and the pre-interface 4 is sealedly connected to the wiring port 3, therefore, the air tightness of the position of the wiring port 3 can be improved, meanwhile, the gap between the top cover 5 and the shell 1 can be effectively avoided to cause the air tightness to drop by arranging the sealing strip 6 between the top cover 5 and the shell 1.

[0026] In the using process, the air tightness of the shell 1 can be improved by the expansion air bag 8, and the change of the air tightness in the shell 1 can be directly observed. The expansion air bag 8 is inflated by using the air pump, since the differential pressure valve 10 is installed at the top of the expansion air bag 8, the internal pressure of the expansion air bag 8 is equivalent to the internal pressure of the shell 1 to improve during the expansion process, when the pressure valve cannot be observed from the position of the transparent window 12, the inflation is stopped, at this time, the internal pressure of the shell 1 is greater than the external pressure, the pressure difference forms a barrier to prevent the external gas from entering the shell 1 through the tiny gap or the penetration path on the shell 1, thereby the internal pressure of the shell 1 can be enhanced to improve the air tightness of the shell 1, and the external gas entering the shell 1 is reduced, when the internal gas of the shell 1 leaks, the internal pressure is reduced, and the differential pressure valve 10 balances the pressure in the expansion air bag 8 and the shell 1 to make the gas in the expansion air bag 8 flow to the inside of the shell 1, thereby the expansion air bag 8 is contracted to maintain the air tightness in the shell 1, meanwhile, since the expansion air bag 8 is contracted, the position change of the differential pressure valve 10 with high contrast color can be observed through the transparent window 12 to prompt the change of the air tightness in the shell 1.

[0027] It should be noted that in the present document, relational terms such as first and second and the like can be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises", "comprising", or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can include other elements not expressly listed or inherent to such process, method, article, or apparatus. An element proceeded by "comprises... a" does not, without more constraints, exclude the presence of additional identical elements in the process, method, article, or apparatus that comprises the element.

[0028] Although the embodiments of the present application have been shown and described, it is to be understood that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present application, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A sealed silicon optical modulator, comprising a shell (1), a modulator (2), and a terminal (3), the modulator (2) is fixedly installed in the shell (1), and the terminal (3) is arranged at both ends of the shell (1), characterized in that: The wiring port (3) is internally provided with a pre-interface (4), one end of the pre-interface (4) is connected with the modulator (2), the other end of the pre-interface (4) is externally communicated with the wiring port (3), and the pre-interface (4) is sealingly connected with the wiring port (3), the wiring port (3) is sealingly connected with the shell (1), the shell (1) is further provided with a top cover (5) at the top, the top cover (5) is provided with two or more groups of sealing strips (6), and the shell (1) is provided with sealing grooves (7) matched with the sealing strips (6) around.

2. A sealed silicon optical modulator according to claim 1, wherein: The sealing strips (6) are provided in two or more groups, and the shell (1) and the top cover (5) are fixedly connected at two ends by bolts.

3. A sealed silicon optical modulator according to claim 1, wherein: The shell (1) is further fixedly provided with an inflatable air bag (8), the inflatable air bag (8) is provided with an inflation port (9) at the bottom, the inflation port (9) penetrates through the shell (1) and is sealingly connected with the shell (1), the inflatable air bag (8) is further fixedly connected with a pressure difference valve (10) at the top, one end of the pressure difference valve (10) is communicated with the inside of the inflatable air bag (8), and the other end of the pressure difference valve (10) is communicated with the inside of the shell (1).

4. The sealed silicon optical modulator of claim 1, wherein: The wiring port (3) and the shell (1) are in an integrated structure.

5. A sealed silicon optical modulator according to claim 3, wherein: The shell (1) is provided with a limiting plate (11), which limits the expansion direction of the inflatable air bag (8).

6. A sealed silicon optical modulator according to claim 3, wherein: The pressure difference valve (10) is coated with high-contrast color paint, both ends of the top cover (5) are provided with transparent windows (12) matched with the position of the inflatable air bag (8), and the length of the transparent window (12) is less than the length of the inflatable air bag (8) after complete expansion.

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