Three-transmitting and three-receiving optical device

Abstract

The utility model belongs to the field of optical devices, and particularly relates to a three-transmitting and three-receiving optical device. Comprising a signal transmitting module; the signal receiving module comprises three signal receiving ends, and the three signal receiving ends are installed independently from one another; and a BOX packaging structure and a TO packaging structure, the signal transmitting module is installed in the BOX packaging structure, and the at least one signal receiving end is installed in the TO packaging structure. The utility model provides a three-transmitting and three-receiving optical device, and aims to solve the problem of interference between a signal receiving end and a signal transmitting end.

Description

Technical Field

[0001] The utility model belongs to the field of optical devices, and in particular relates to a three-transmitting and three-receiving optical device. Background Art

[0002] Optical devices are optoelectronic devices that convert electrical signals into optical signals or vice versa in optical communication systems. A three-transmitter-three-receiver optical device is a type of optical device, that is, an optical device that includes three signal transmitters and three signal receivers. It is widely used in the upgrade and transition stage from 2.5G or 10G PON to 50G PON. Three signal transmitters and three signal receivers work together to achieve three-transmitter-three-receiver.

[0003] The three-transmitter and three-receiver device is usually installed in a BOX package or a TO package. That is to say, in the three-transmitter and three-receiver device of the prior art, the three signal transmitting ends of the signal transmitting component and the three signal receiving ends of the signal receiving component are all located in the same chamber. Therefore, in the three-transmitter and three-receiver device using the above design, the signal receiving end and the signal transmitting end are very likely to interfere with each other. Utility Model Content

[0004] The utility model provides a three-transmitting and three-receiving optical device, which aims to solve the problem of interference between a signal receiving end and a signal transmitting end.

[0005] In order to achieve the above object, the utility model provides a three-transmitter and three-receiver light device, comprising:

[0006] Signal transmission module;

[0007] A signal receiving module, wherein the signal receiving module comprises three signal receiving ends, and the three signal receiving ends are installed independently of each other;

[0008] BOX packaging structure and TO packaging structure, the signal transmitting module is installed in the BOX packaging structure, and at least one of the signal receiving ends is installed in the TO packaging structure.

[0009] In this solution, the signal transmitting module is installed in the BOX packaging structure, and at least one signal receiving end in the signal receiving module is installed in the TO packaging structure. By installing the signal transmitting module and the signal receiving module in different positions and different chambers, the signal receiving module is less interfered. At the same time, this solution preferably sets the signal receiving ends in the signal receiving module independently of each other, so compared with collectively installing multiple signal receiving ends, the signal receiving module is less interfered.

[0010] Preferably, in order to reduce the size of the entire optical device, the signal receiving end in Solution 1 includes a first signal receiving end, and the first signal receiving end is installed in the BOX packaging structure.

[0011] In Solution 1, the first signal receiving end is installed in the BOX packaging structure. Therefore, compared with setting the first signal receiving end in the TO packaging structure, the size of the optical device can be reduced. A smaller optical device can reduce its interference with other components and is more practical.

[0012] Alternatively, in order to reduce the interference to the first signal receiving end, in solution two, the first signal receiving end is installed in the TO packaging structure.

[0013] In the second solution, the first signal receiving end is set in the TO packaging structure, and the signal transmitting module is installed in the BOX packaging structure. Therefore, the first signal receiving end and the signal transmitting module are located in different installation positions, and the first signal receiving end is less interfered. Of course, this solution will increase the size of the optical device.

[0014] Preferably, in solution 1, since the first signal receiving end is installed inside the BOX packaging structure, in order to reduce the interference of the signal transmitting module on the first signal receiving end, a filter is installed inside the BOX packaging structure, and the filter is installed corresponding to the first signal receiving end.

[0015] In the first solution, a filter is installed inside the BOX packaging structure, and the filter is arranged corresponding to the first signal receiving end. Therefore, the interference caused by the signal transmitting module to the first signal receiving end is reduced by the filter.

[0016] Preferably, in order to reduce the interference of the signal transmitting module to the signal receiving module, the signal receiving end of this solution includes a second signal receiving end and a third signal receiving end, and the second signal receiving end and the third signal receiving end are installed in the TO packaging structure.

[0017] In this solution, the second signal receiving end and the third signal receiving end are both installed in the TO packaging structure, so the second signal receiving end and the third signal receiving end are less interfered by the signal transmitting module.

[0018] Preferably, since the signal transmitting module is installed in the BOX packaging structure, and the second signal transmitting end and the third signal transmitting end are installed inside the TO packaging structure, in order to ensure that the optical signal enters the TO packaging structure from the BOX packaging structure, and the optical signal enters the BOX packaging structure from the TO packaging structure, the BOX packaging structure and the TO packaging structure are connected through a connecting port, and the connecting port is used for the optical signal to pass through.

[0019] In this solution, a connecting port is provided to connect the BOX packaging structure with the TO packaging structure, thereby realizing the transmission of optical signals and solving the problem that the optical signals are blocked by the BOX packaging structure and the TO packaging structure.

[0020] Preferably, in order to solve the problem of increased interference caused by the mutual communication between the BOX packaging structure and the TO packaging structure, a light-transmitting component is provided at the communication port in this solution, and the light-transmitting component seals the communication port.

[0021] In this solution, a light-transmitting component is configured at the communication port, which seals the communication port while ensuring that the optical signal can be transmitted normally. After the communication port is sealed, the signal transmitting module has less interference with the second signal receiving end and the third signal receiving end.

[0022] Preferably, since the light-transmitting component is often installed by welding, and the solder is not solidified, the solder easily flows to the lower end of the light-transmitting component, resulting in misalignment of the light-transmitting component installation. The light-transmitting component is installed in the installation groove, and the bottom end of the installation groove is also provided with a receiving groove connected to the installation groove.

[0023] In this solution, the light-transmitting component is installed in the installation groove, and the light-transmitting component is installed inside the installation groove by welding. Therefore, the solder used for welding can directly flow into the inside of the receiving groove and be received inside the receiving groove. By receiving the solder inside the receiving groove, the solder will not accumulate at the bottom end of the light-transmitting component, thereby solving the problem of the light-transmitting component being misaligned due to the solder.

[0024] Preferably, in order to realize the introduction of the optical signal emitted by the optical signal transmitting end into the optical fiber, and the introduction of the optical signal output by the optical fiber into the signal receiving module. The present solution further includes a wavelength division multiplexing / demultiplexing component, which is installed in the TO packaging structure; the wavelength division multiplexing / demultiplexing component is installed corresponding to the signal transmitting module and the signal receiving module.

[0025] This solution guides the light beam through a wavelength division multiplexing / demultiplexing component so that the light beam can enter the optical fiber, or the light beam can be split and enter three signal receiving ends respectively.

[0026] The signal transmitting module described in this solution includes a beam combiner and three signal transmitting ends. The three signal transmitting ends are arranged corresponding to the beam combiner, and the beam combiner is used to combine three optical signals.

[0027] In order to achieve accurate transmission of optical signals, the inner bottom surface height of the TO packaging structure described in this solution is higher than the inner bottom surface height of the BOX packaging structure.

[0028] In this solution, the inner bottom surface height of the TO packaging structure is higher than the inner bottom surface height of the BOX packaging structure, so that the height of the components installed inside the TO packaging structure can be adapted to the height of the signal transmitting end in the BOX packaging structure, thereby ensuring that the optical signal can be accurately transmitted.

[0029] Preferably, in order to achieve adaptation with the optical fiber, the present solution further comprises an optical fiber adaptation component, the optical fiber adaptation component is installed in the TO packaging structure, and the optical fiber adaptation component is adapted to be installed with the wavelength division multiplexing / demultiplexing component.

[0030] The signal transmitting module is at different ambient temperatures, and the temperature will affect the working power of the signal transmitting module. The present solution also includes a semiconductor refrigerator, and the signal transmitting module is installed on the semiconductor refrigerator.

[0031] In this solution, the signal transmission module is installed on a semiconductor refrigerator, which can lock the signal transmission module at a constant temperature. Therefore, even under different ambient temperatures, the semiconductor refrigerator can ensure that the signal transmission module is locked at a constant temperature, ensuring that the signal transmission module will not be affected by the ambient temperature.

[0032] Preferably, since the present solution includes a BOX packaging structure and a TO packaging structure, the size of the optical device will inevitably increase. When the size of the optical device increases, the optical device is very likely to interfere with other components when it is installed. In order to solve the above problem, the thickness of the BOX packaging structure in the present solution is less than the thickness of the TO packaging structure.

[0033] In this solution, the thickness of the BOX packaging structure is set to be smaller than the thickness of the TO packaging structure. Therefore, when the optical device is installed, the interfering components can be accommodated in the accommodating space at the top of the BOX packaging structure, thereby solving the problem of interference between the optical device and other components.

[0034] The beneficial effect of the utility model is that in this solution, the signal transmitting module is installed in the BOX packaging structure, and at least one signal receiving end in the signal receiving module is installed in the TO packaging structure. By installing the signal transmitting module and the signal receiving module in different positions and different chambers, the signal receiving module is less interfered.

[0035] At the same time, the present solution preferably sets the signal receiving ends in the signal receiving module independently of each other, so compared with collectively installing a plurality of signal receiving ends, the signal receiving module is less subject to interference. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] Figure 1 This is a schematic diagram of the structure of a three-transmitter and three-receiver optical device.

[0037] Figure 2 This is a top view of the three-transmitter and three-receiver light device with the cover removed.

[0038] Figure 3 This is a side view of a three-transmitter and three-receiver optical device.

[0039] Figure 4Schematic diagram of the installation status of the light-transmitting component.

[0040] Figure 5 Schematic diagram of signal transmission of the signal transmission module.

[0041] Figure 6 It is a signal receiving schematic diagram of the signal receiving module.

[0042] Figure 7 This is a schematic diagram of signal reception by the signal receiving module in Example 2.

[0043] The reference numerals include: BOX packaging structure 1, first base 11, first cover 12, TO packaging structure 2, second base 21, second cover 22, groove 23, wavelength division multiplexing / demultiplexing component 3, optical fiber adapter component 4, optical fiber collimating lens 41, signal transmitting module 5, first signal transmitting end 51, second signal transmitting end 52, third signal transmitting end 53, collimating lens 54, isolator 55, combiner 56, semiconductor refrigerator 57, signal receiving module 6, first signal receiving end 61, photodetector 611, right-angle prism 612, translation prism 613, filter 614, second signal receiving end 62, third signal receiving end 63, first reflector 64, coupling lens 65, second reflector 66, light-transmitting component 7, mounting groove 71, and accommodating groove 72. DETAILED DESCRIPTION

[0044] In order to make the purpose, technical solutions and advantages of the embodiments more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. When the following description refers to the drawings, unless otherwise indicated, the same numbers in different drawings represent the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present disclosure. Instead, they are only examples of devices and methods consistent with some aspects of the present disclosure as detailed in the attached claims.

[0045] It should be noted that all actions to obtain signals, information or data in this application are carried out in compliance with the relevant data protection laws and policies of the country where they are located, and with the authorization given by the owner of the corresponding device.

[0046] In the present disclosure, unless otherwise stated, the directional words used, such as "inside" and "outside", are defined according to the corresponding parts' own contours. The terms used in the present disclosure, such as "first" and "second", etc., are used to distinguish one element from another element and do not have order and importance. Example

[0047] Basically as attached Figure 1As shown, a three-transmitter and three-receiver optical device is mainly used in the upgrade and transition stage from 2.5G or 10G PON to 50G PON.

[0048] The optical device in the embodiment of the present disclosure includes a BOX packaging structure 1 , a TO packaging structure 2 , a wavelength division multiplexing / demultiplexing component 3 , an optical fiber adapter component 4 , a signal transmitting module 5 and a signal receiving module 6 .

[0049] like Figure 2 As shown, the signal transmitting module 5 in the disclosed embodiment includes three signal transmitting terminals. The three signal transmitting terminals are respectively a first signal transmitting terminal 51, a second signal transmitting terminal 52 and a third signal transmitting terminal 53. The three signal transmitting terminals are respectively adapted to 50G communication wavelength, 10G communication wavelength and 2.5G communication wavelength. The signal receiving module 6 in the disclosed embodiment includes three signal receiving terminals. The three signal receiving terminals include a first signal receiving terminal 61, a second signal receiving terminal 62 and a third signal receiving terminal 63. The three signal receiving terminals are respectively adapted to 2.5G communication wavelength, 10G communication wavelength and 50G communication wavelength. In the disclosed embodiment, three transmissions and three receptions are realized by the cooperation of three signal transmitting terminals and three signal receiving terminals.

[0050] In the embodiment of the present disclosure, the BOX packaging structure 1 and the TO packaging structure 2 are integrally formed, and it is more preferred that the BOX packaging structure 1 and the TO packaging structure 2 are integrally formed with high thermal conductivity heat dissipation materials, such as tungsten copper, etc. The BOX packaging structure 1 and the TO packaging structure 2 made of high thermal conductivity heat dissipation materials have better heat dissipation effect.

[0051] It should be noted that in the embodiment of the present disclosure, the TO packaging structure 2 and the BOX packaging structure 1 are preferably formed in one piece. However, in some other embodiments, the TO packaging structure 2 and the BOX packaging structure 1 may be independently provided, and then connected together by welding or the like.

[0052] like Figure 2 and Figure 3 As shown, in the embodiment of the present disclosure, the BOX packaging structure 1 is specifically in the shape of a rectangular box, which includes a first base 11 and a first cover plate 12. In the embodiment of the present disclosure, a storage cabin is constructed inside the first base 11, and the storage cabin is a rectangular cabin. The top of the storage cabin is open. Then, in order to close the storage cabin, the first cover plate 12 is installed at the opening at the top of the storage cabin, and the first cover plate 12 closes the opening at the top of the storage cabin, so that the storage cabin forms a closed cabin.

[0053] like Figure 2 and Figure 3As shown, the TO package structure 2 in the embodiment of the present disclosure also includes a second base 21 and a second cover plate 22. A storage chamber is also constructed inside the second base 21 of the TO package structure 2, and the storage chamber is a rectangular chamber. The top of the storage chamber is open, and a second cover plate 22 is arranged at the open top of the storage chamber. The second cover plate 22 closes the storage chamber, so that a closed chamber is formed inside the TO package.

[0054] In the disclosed embodiment, the second base 21 in the TO packaging structure 2 and the first base 11 in the BOX packaging structure 1 are integrally formed, and the bottom surface of the second base 21 in the TO packaging structure 2 and the bottom surface of the first base 11 in the BOX packaging structure 1 are in the same plane. The second base 21 in the TO packaging structure 2 and the first base 11 in the BOX packaging structure 1 can dissipate heat uniformly, with a larger heat dissipation area, thereby achieving better heat dissipation effect.

[0055] In the disclosed embodiment, when the top of the BOX packaging structure 1 and the TO packaging structure 2 are not covered by the cover plate, the top of the BOX packaging structure 1 and the TO packaging structure 2 are open. Therefore, when producing the optical device, the automation equipment can automatically install the relevant parts inside the BOX packaging structure 1 and the TO packaging structure 2, and the installation efficiency is high. When the automation equipment uniformly installs the parts inside the BOX packaging structure 1 and the TO packaging structure 2, the installation accuracy and coupling accuracy of the parts are higher. After all the parts are installed, the cover plate is installed to make the BOX packaging structure 1 and the TO packaging structure 2 closed.

[0056] In the embodiment of the present disclosure, the first cover plate 12 of the BOX packaging structure 1 and the second cover plate 22 of the TO packaging structure 2 are preferably set to dark black, or light absorbing coatings are provided on the first cover plate 12 and the second cover plate 22. The dark black cover plate or the light absorbing coating can reduce the optical crosstalk inside the storage chamber.

[0057] In order to connect the BOX packaging structure 1 and the TO packaging structure 2, a connecting port is constructed on the side of the base in the embodiment of the present disclosure. The connecting port is rectangular. The BOX packaging structure 1 and the TO packaging structure 2 are connected to each other through the connecting port to ensure that the optical signal can be transmitted through the connecting port. Figure 2 and Figure 4 As shown, in the embodiment of the present disclosure, a light-transmitting component 7 is preferably provided at the communication port, and the light-transmitting component 7 may be light-transmitting glass or other light-transmitting components 7 in the prior art, and the light-transmitting component 7 may allow light signals to pass through. A metal frame is provided at the edge of the light-transmitting component 7, so that the light-transmitting component 7 can be welded and installed at the communication port.

[0058] In the embodiment of the present disclosure, the BOX packaging structure 1 and the TO packaging structure 2 are sealed by the light-transmitting component 7, and both the BOX packaging structure 1 and the TO packaging structure 2 are closed cabins. When the BOX packaging structure 1 and the TO packaging structure 2 are closed cabins, the interference of the signal transmitting module 5 on the signal receiving end arranged in the TO packaging structure 2 can be further solved.

[0059] In order to install the light-transmitting component 7 in the embodiment of the present disclosure, the light-transmitting component 7 is fixedly installed at the communicating port. In the embodiment of the present disclosure, a boss is provided at the inner side wall of the base, and a mounting groove 71 is constructed on the boss. The mounting groove 71 is provided for the light-transmitting component 7 to be installed. Figure 2 The mounting groove 71 is a square groove as a whole, and the top of the mounting groove 71 is open, so that the light-transmitting component 7 can be installed into the mounting groove 71 from the top of the mounting groove 71. Figure 4 In order to fix the light-transmitting component 7 in the installation groove 71 in the embodiment of the present disclosure, the light-transmitting component 7 is fixed by welding, so that the metal frame at the edge of the light-transmitting component 7 is fixed to the installation groove 71 together.

[0060] Since the light-transmitting component 7 is fixedly installed by welding, the solder will flow downward during welding, thereby causing a large amount of solder to accumulate at the bottom of the installation groove 71. When a large amount of solder accumulates at the bottom of the installation groove 71, the light-transmitting component 7 is easily misaligned during installation.

[0061] In order to solve the above problems, Figure 4 As shown, in the embodiment of the present disclosure, a receiving groove 72 is further provided at the bottom of the mounting groove 71, and the receiving groove 72 is in a connected state with the mounting groove 71. When the solder flows downward, the solder can flow into the receiving groove 72 and be received inside the receiving groove 72. In the embodiment of the present disclosure, the solder is received by the receiving groove 72, so the solder will not accumulate at the inner bottom of the mounting groove 71, thereby solving the problem that a large amount of solder accumulates at the bottom of the mounting groove 71, causing the light-transmitting component 7 to be installed misaligned.

[0062] The receiving groove 72 in the embodiment of the present disclosure is preferably arranged at both ends and the middle of the bottom of the installation groove 71. The receiving grooves 72 located at both ends are used to accommodate the solder flowing out from the edges of both sides of the light-transmitting component 7, while the receiving groove 72 located in the middle is used to accommodate the solder flowing out from the bottom end of the light-transmitting component 7.

[0063] When the light-transmitting component 7 is installed vertically, the light signal is irradiated to the light-transmitting component 7, and part of the light signal will return along the original path, further causing interference. In order to solve the above problem, the light-transmitting component 7 is preferably arranged to be tilted in this solution. The light-transmitting component 7 can be arranged to be tilted left and right (such as Figure 2The light signal is reflected to other directions by the light-transmitting component 7 installed obliquely, and the light signal will not return along the original path, thereby reducing interference.

[0064] In the embodiment of the present disclosure, the thickness of the BOX packaging structure 1 is preferably Figure 3 X) is lower than the thickness of the TO package structure 2 (ie, Figure 3 The bottom of the BOX packaging structure 1 and the bottom of the TO packaging structure 2 are in the same plane. Therefore, a receiving space is constructed at the top of the BOX packaging structure 1.

[0065] Take an application scenario as an example: when the optical device in the embodiment of the present disclosure is installed and used, since a accommodating space is constructed above the BOX packaging structure 1, some components that may interfere (for example, PCB boards, etc.) can be accommodated in the accommodating space above the BOX packaging structure 1, thereby solving the problem of interference between the optical device and other components, and being more practical.

[0066] In the disclosed embodiment, the signal transmitting module 5 is preferably installed inside the BOX packaging structure 1, while the second signal receiving terminal 62 and the third signal receiving terminal 63 are installed on the TO packaging structure 2. Therefore, the signal transmitting module 5 and the second signal receiving terminal 62 and the third signal receiving terminal 63 are in different packaging structures, thereby solving the problem of the signal transmitting module 5 interfering with the second signal receiving terminal 62 and the third signal receiving terminal 63. At the same time, when the second signal receiving terminal 62 and the third signal receiving terminal 63 are installed on the TO package, the second signal receiving terminal 62 and the third signal receiving terminal 63 are both installed independently. Through this installation method, compared with installing the second signal receiving terminal 62 and the third signal receiving terminal 63 together, the second signal receiving terminal 62 and the third signal receiving terminal 63 will not interfere with each other, thereby further solving the problem of interference.

[0067] During implementation, the signal transmission module 5 in the embodiment of the present disclosure is installed inside the BOX packaging structure 1. Figure 2 and Figure 5 As shown, the signal transmitting module 5 specifically includes a first signal transmitting end 51, a second signal transmitting end 52, a third signal transmitting end 53, a collimating lens 54, an isolator 55 and a beam combiner 56. The three signal transmitting ends are respectively a 1577 laser module, a 1490 laser module and a 1342 laser module. The 1577 laser module, the 1490 laser module and the 1342 laser module are respectively configured with circuits adapted to the laser.

[0068] At the same time, the first signal transmitting end 51, the second signal transmitting end 52 and the third signal transmitting end 53 are respectively provided with collimating lenses 54 in a one-to-one correspondence. The collimating lens 54 is used to adjust the light beam into a parallel light beam. Then, an isolator 55 is also provided at the rear end of each collimating lens 54, and the isolator 55 can be a T-shaped isolator 55 used in the prior art. Then, a beam combiner 56 is provided at the rear end of the isolator 55. The beam combiner 56 combines the optical signals emitted by the first signal transmitting end 51, the second signal transmitting end 52 and the third signal transmitting end 53, and the combined optical signals enter the inside of the TO packaging structure 2 from the connecting port. The beam combiner 56 in the embodiment of the present disclosure can be a PBS or MUX combiner in the prior art.

[0069] The working process of the signal transmitting module 5 in the embodiment of the present disclosure is as follows ( Figure 5 As shown in the figure, the arrows in the figure are the transmission directions of the optical signals): the three lasers respectively emit three independent optical signals, which respectively enter the corresponding collimating lenses 54, and the collimating lenses 54 convert the light beams into parallel light. The light beams converted into three parallel light beams are combined by the beam combiner 56, and finally, the combined light beams can enter the interior of the TO packaging structure 2 from the light-transmitting component 7 at the communication port.

[0070] Since the first signal transmitting terminal 51, the second signal transmitting terminal 52 and the third signal transmitting terminal 53 have heating problems during operation. At the same time, the operating power of the first signal transmitting terminal 51, the second signal transmitting terminal 52 and the third signal transmitting terminal 53 is easily affected by the ambient temperature. Therefore, the signal transmitting module 5 in the embodiment of the present disclosure further includes a semiconductor cooler 57 (TEC), the semiconductor cooler 57 is installed inside the BOX packaging structure 1, and the first signal transmitting terminal 51, the second signal transmitting terminal 52 and the third signal transmitting terminal 53 are all installed on the semiconductor cooler 57.

[0071] Therefore, when in use, the heat generated by the first signal emitting terminal 51, the second signal emitting terminal 52 and the third signal emitting terminal 53 can be transferred to the bottom of the BOX packaging structure 1 through the semiconductor refrigerator 57, so that the bottom of the BOX packaging structure 1 and the bottom of the TO packaging structure 2 are used as heat dissipation components, which can effectively improve the heat dissipation performance of the optical device. In addition, since the first signal emitting terminal 51, the second signal emitting terminal 52 and the third signal emitting terminal 53 are all assembled on the same semiconductor refrigerator 57, during use, the first signal emitting terminal 51, the second signal emitting terminal 52 and the third signal emitting terminal 53 can be locked in a constant temperature by the semiconductor refrigerator 57, and the first signal emitting terminal 51, the second signal emitting terminal 52 and the third signal emitting terminal 53 are less affected by the ambient temperature.

[0072] It should be noted that: since the signal transmitting end is installed on the semiconductor refrigerator in the embodiment of the present disclosure, each signal transmitting end is also correspondingly provided with a corresponding circuit. Therefore, in order to ensure that the optical signal will not be blocked when the BOX packaging structure and the TO packaging structure are transmitting the optical signal. In the embodiment of the present disclosure, the inner bottom of the TO packaging structure is preferably higher than the inner bottom of the BOX packaging structure. That is, by raising the inner bottom of the TO packaging structure, the installation height of the components inside the TO packaging structure is increased, thereby achieving that when the components inside the TO packaging structure are transmitting signals with the components inside the BOX packaging structure, the optical signal can flow accurately to avoid the optical signal being blocked.

[0073] In order to ensure that the optical signal entering the TO package structure 2 can normally enter the optical fiber for transmission, Figure 2 As shown, in the embodiment of the present disclosure, a wavelength division multiplexing / demultiplexing component 3 (Z-Block) is installed inside the TO packaging structure 2, and a fiber adapter component 4 is arranged on the side of the TO packaging structure 2. The optical signal entering the inside of the TO packaging structure 2 through the connecting port directly enters the wavelength division multiplexing / demultiplexing component 3, and then is emitted from the COM end of the wavelength division multiplexing / demultiplexing component 3, and finally enters the inside of the fiber adapter component 4. The wavelength division multiplexing / demultiplexing component 3 and the fiber adapter component 4 can both be the wavelength division multiplexing / demultiplexing component 3 and the fiber adapter component 4 in the prior art, and the embodiment of the present disclosure will not be repeated.

[0074] The signal receiving module 6 in the disclosed embodiment includes a first signal receiving terminal 61, a second signal receiving terminal 62 and a third signal receiving terminal 63. In the disclosed embodiment, the second signal receiving terminal 62 and the third signal receiving terminal 63 can be TO receiving components, and the second signal receiving terminal 62 and the third signal receiving terminal 63 are respectively installed on the front and rear side walls of the TO packaging structure 2. In the disclosed embodiment, the second signal receiving terminal 62 and the third signal receiving terminal 63 are preferably used to correspond to the 10G communication wavelength and the 50G communication wavelength, respectively. At the same time, the second signal receiving terminal 62 and the third signal receiving terminal 63 are both correspondingly configured with a coupling lens 65.

[0075] The second signal receiving terminal 62 and the third signal receiving terminal 63 provided in the TO packaging structure 2 are less interfered by the signal transmitting module installed in the BOX packaging structure 1. At the same time, the second signal receiving terminal 62 and the third signal receiving terminal 63 are independently installed in TO, and compared with the second signal receiving terminal 62 and the third signal receiving terminal 63 being installed together, the second signal receiving terminal 62 and the third signal receiving terminal 63 will not interfere with each other.

[0076] The first signal receiving end 61 in the embodiment of the present disclosure is preferably arranged inside the BOX packaging structure 1, so as to make the size of the entire optical device smaller. Figure 2 and Figure 6 As shown, in the embodiment of the present disclosure, the first signal receiving end 61 includes a photodetector 611, and the photoelectric sensor is installed inside the BOX packaging structure 1. In order to ensure that the optical signal can enter the photodetector 611, a translation prism 613 and a right-angle prism 612 are also installed inside the BOX packaging structure 1 in the embodiment of the present disclosure. The right-angle prism 612 is arranged corresponding to the photodetector 611, and the right-angle prism 612 includes two right-angle surfaces perpendicular to each other. The right-angle prism 612 is located between the photodetector 611 and the translation prism 613, and the right-angle prism 612 is located above the photodetector 611. The transmission direction of the optical signal is vertically changed by the right-angle prism 612, so that the optical signal can be vertically incident on the PD photosensitive surface of the photodetector 611. The translation prism 613 is arranged at the connecting port of the BOX packaging structure 1, and the translation prism 613 is arranged corresponding to the right-angle prism 612. The translation prism 613 is in the shape of a parallelogram. The optical signal entering from the communication port can change the transmission direction of the optical signal through the translation prism 613, so that the optical signal can normally irradiate the right angle prism 612. In the embodiment of the present disclosure, a coupling lens 65 is also provided between the right angle prism 612 and the translation prism 613.

[0077] Since the first signal receiving terminal 61 is located inside the BOX package, in order to solve the interference of the signal transmitting module 5 on the first signal receiving terminal 61, a filter 614 is arranged between the coupling lens 65 and the translation prism 613 in the embodiment of the present disclosure, and the filter 614 is used to solve the problem of interference to the first signal receiving terminal 61.

[0078] The working process of the signal receiving module 6 receiving the optical signal is as follows (eg Figure 6 As shown in the figure, the arrow is the transmission direction of the optical signal): the optical signal is output from the optical fiber adapter component 4, and the optical signal enters the interior of the wavelength division multiplexing / demultiplexing component 3 through the optical fiber collimating lens 5441. The wavelength division multiplexing / demultiplexing component 3 splits the optical signal, and the first optical signal and the second optical signal are output from the COM end of the wavelength division multiplexing / demultiplexing component 3, and then the first optical signal and the second optical signal are irradiated into the first reflective plate 64, and the first reflective plate 64 realizes reflecting the first optical signal and the second optical signal to the third signal receiving end 63 and the second signal receiving end 62 respectively. The third optical signal is output from the end of the wavelength division multiplexing / demultiplexing component 3 close to the connecting port, and the third optical signal enters the interior of the BOX packaging structure 1 through the connecting port, and is received by the first signal receiving end 61 located inside the BOX packaging structure 1. Example

[0079] The difference between the embodiment of the present disclosure and the embodiment 1 is that in the embodiment of the present disclosure, the first signal receiving terminal 61 is not installed inside the BOX packaging structure 1 , but the first signal receiving terminal 61 is installed inside the TO packaging structure 2 .

[0080] In the embodiment of the present disclosure, the first signal receiving terminal 61 is installed in the TO packaging structure 2 . Compared with the technical solution of Embodiment 1, the first signal receiving terminal 61 will not be interfered by the signal transmitting module 5 .

[0081] In the embodiment of the present disclosure, the first signal receiving end 61 may be a TO receiving component in the prior art. Meanwhile, a second reflector 66 is provided corresponding to the first signal receiving end 61 , and the third light signal is reflected to the first signal receiving end 61 through the second reflector 66 .

[0082] In this embodiment, the signal receiving module 6 receives the optical signal as follows ( Figure 7 As shown in the figure, the arrow in the figure is the transmission direction of the optical signal): the optical signal is output from the optical fiber adapter component 4, and the optical signal enters the interior of the wavelength division multiplexing / demultiplexing component 3 through the optical fiber collimating lens 5441. The wavelength division multiplexing / demultiplexing component 3 splits the optical signal, and the first optical signal and the second optical signal are output from the COM end of the wavelength division multiplexing / demultiplexing component 3, and then the first optical signal and the second optical signal are irradiated into the first reflective plate 64, and the first reflective plate 64 realizes reflecting the first optical signal and the second optical signal to the second signal receiving end 62 and the third signal receiving end 63 respectively. The third optical signal is output from the end of the wavelength division multiplexing / demultiplexing component 3 close to the connecting port, and the third optical signal is irradiated to the second reflective plate 66, and the second reflective plate 66 reflects the third optical signal to the first signal receiving end 61.

[0083] The above is only an embodiment of the utility model, and the common knowledge such as the known specific structure and characteristics in the scheme is not described in detail here. It should be pointed out that for those skilled in the art, several deformations and improvements can be made without departing from the structure of the utility model, which should also be regarded as the protection scope of the utility model, and these will not affect the effect of the implementation of the utility model and the practicality of the patent. The scope of protection required by this application shall be based on the content of its claims, and the specific implementation methods and other records in the specification can be used to interpret the content of the claims.

Claims

1. A three-transmitter and three-receiver light device, characterized in that: include, Signal transmission module; A signal receiving module, wherein the signal receiving module comprises three signal receiving ends, and the three signal receiving ends are installed independently of each other; BOX packaging structure and TO packaging structure, the signal transmitting module is installed in the BOX packaging structure, and at least one of the signal receiving ends is installed in the TO packaging structure.

2. The three-transmitter and three-receiver light device according to claim 1, characterized in that: The signal receiving end includes a first signal receiving end, and the first signal receiving end is installed in the BOX packaging structure; or; The first signal receiving end is installed on the TO packaging structure.

3. The three-transmitter and three-receiver light device according to claim 2, characterized in that: A filter is installed in the BOX packaging structure, and the filter is installed corresponding to the first signal receiving end.

4. The three-transmitter and three-receiver light device according to claim 1, characterized in that: The signal receiving end includes a second signal receiving end and a third signal receiving end, and the second signal receiving end and the third signal receiving end are installed in the TO packaging structure.

5. The three-transmitter and three-receiver light device according to any one of claims 1 to 4, characterized in that: The BOX packaging structure and the TO packaging structure are connected via a communication port, and the communication port is used for optical signals to pass through.

6. The three-transmitter and three-receiver light device according to claim 5, characterized in that: A light-transmitting component is arranged at the communication opening, and the light-transmitting component seals the communication opening.

7. The three-transmitter and three-receiver light device according to claim 6, characterized in that: The light-transmitting component is installed in the installation groove, and the bottom end of the installation groove is also provided with a receiving groove communicated with the installation groove.

8. The three-transmitter and three-receiver light device according to claim 1, characterized in that: It also includes a wavelength division multiplexing / demultiplexing component, which is installed in the TO packaging structure; The wavelength division multiplexing / demultiplexing component is installed corresponding to the signal transmitting module and the signal receiving module; and / or; The signal transmitting module comprises a beam combiner and three signal transmitting ends, the three signal transmitting ends are arranged corresponding to the beam combiner, and the beam combiner is used to combine three optical signals; and / or; The inner bottom surface height of the TO packaging structure is higher than the inner bottom surface height of the BOX packaging structure.

9. The three-transmitter and three-receiver light device according to claim 8, characterized in that: It also includes an optical fiber adapter component, which is installed on the TO packaging structure and adapted to be installed on the wavelength division multiplexing / demultiplexing component; and / or; It also includes a semiconductor refrigerator, and the signal transmitting module is installed on the semiconductor refrigerator.

10. The three-transmitter and three-receiver light device according to claim 1, characterized in that: The thickness of the BOX packaging structure is smaller than the thickness of the TO packaging structure.

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