Novel optical device

Abstract

The utility model belongs to the field of optical devices, and particularly relates to a novel optical device. Comprising a BOX packaging unit and a TO packaging unit, the BOX packaging unit is connected with the TO packaging unit, and the thickness of the BOX packaging unit is smaller than that of the TO packaging unit, so that an accommodating space is formed at the BOX packaging unit. The utility model provides a novel optical device, and aims to solve the problem that an optical device packaged by BOX + TO interferes with other parts.

Description

Technical Field

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

[0002] Optical devices are optoelectronic devices that convert electrical signals into optical signals or vice versa in optical communication systems. Optical devices include signal transmitting components and signal receiving components. The signal transmitting components are used to send optical signals, and the signal receiving components are used to receive optical signals.

[0003] Optical devices are packaged in different ways, including optical devices packaged by BOX, optical devices packaged by TO, and optical devices packaged by BOX+TO. Among them, optical devices packaged by BOX+TO use both BOX and TO packaging units, so it is obvious that the size of the optical device will be larger. The optical devices packaged by BOX+TO in the prior art can refer to the prior art, that is, application number: 202220766159.4, named: single-fiber bidirectional high-speed optical transceiver device.

[0004] Since the optical device using BOX+TO packaging is relatively large in size, it is obvious that the optical device is very easy to interfere with other components when it is installed and used. Utility Model Content

[0005] The utility model provides a novel optical device, which aims to solve the problem of interference between the optical device using BOX+TO packaging and other components.

[0006] In order to achieve the above object, the utility model provides a novel optical device, including a BOX packaging unit and a TO packaging unit, wherein the BOX packaging unit and the TO packaging unit are connected, wherein

[0007] The thickness of the BOX packaging unit is smaller than that of the TO packaging unit, so that a receiving space is constructed at the BOX packaging unit.

[0008] In this solution, the thickness of the BOX packaging unit is set to be smaller than the thickness of the TO packaging unit. Therefore, when installing and using the optical device of the present application, components that may interfere can be accommodated in the accommodating space, thereby solving the interference problem caused by the large size of the optical device in the prior art.

[0009] Preferably, since optical devices are usually installed at the bottom, the position where interference occurs is often the upper end of the optical device. Therefore, in order to solve the above problem, the bottoms of the BOX packaging unit and the TO packaging unit are in the same plane, so that the accommodation space is constructed above the BOX packaging unit.

[0010] In this solution, the bottoms of the BOX packaging unit and the TO packaging unit are arranged to be in the same plane, so that the accommodation space can be located above the BOX packaging unit. Obviously, when the accommodation space is located above the BOX packaging unit, components that may interfere can be accommodated in the accommodation space.

[0011] Preferably, in order to further accommodate interfering parts, a groove is provided at the connection between the TO packaging unit and the BOX packaging unit in this solution.

[0012] In this solution, grooves are provided to accommodate components that may interfere with each other. Therefore, components that may interfere with each other can be accommodated in the accommodation space and the grooves at the BOX packaging unit. Obviously, possible interference can be further resolved.

[0013] Preferably, the top of the BOX packaging unit is usually sealed and welded for packaging, so in order to solve the problem of interference between the TO packaging unit and the sealing component, the groove of this solution is arranged at the upper end of the TO packaging unit, and the inner bottom of the groove is lower than the top of the BOX packaging unit.

[0014] In this solution, when the packaging is realized by sealing welding, since the inner bottom of the groove is lower than the top of the BOX packaging unit, it is obvious that the TO packaging unit will not interfere with the sealing welding tool.

[0015] Preferably, in order to completely expose the top edge of the BOX packaging unit, the present solution preferably has the groove as a straight groove, and the groove is arranged parallel to the top edge of the BOX packaging unit.

[0016] In this solution, the straight groove is parallel to the top edge of the BOX packaging unit. Obviously, the top edge of the BOX packaging unit can be completely exposed, thereby further solving the problem of interference between the top of the TO packaging unit and the sealing tool.

[0017] In this solution, the groove preferably has a rectangular cross-section.

[0018] Preferably, in order to realize the transmission and reception of optical signals, the present solution preferably further includes a signal transmitting module and a signal receiving module, wherein the signal transmitting module is used to transmit optical signals and the signal receiving module is used to receive optical signals.

[0019] This solution configures a signal receiving module and a signal transmitting module inside the optical device to realize signal reception and transmission, ensuring that the optical device can be used normally.

[0020] Preferably, in order to solve the problem of interference between the signal receiving module and the signal transmitting module, the present solution preferably installs the signal transmitting module inside the BOX packaging unit, and at least one signal receiving end of the signal receiving module is installed in the TO packaging unit.

[0021] In this solution, the signal transmitting module is installed in the BOX packaging unit, and at least one signal receiving end of the signal receiving module is installed in the TO packaging unit. Therefore, the signal transmitting module has less interference with the at least one signal receiving end.

[0022] 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. This solution also includes a wavelength division multiplexing / demultiplexing component and an optical fiber adapter, which are installed in the TO packaging unit; the wavelength division multiplexing / demultiplexing component is adapted to the installation of the signal receiving module and the signal transmitting module, and the optical fiber adapter is installed corresponding to the wavelength division multiplexing / demultiplexing component.

[0023] The signal transmission module is at different ambient temperatures, and the temperature will affect the working power of the signal transmission module. This solution also includes a semiconductor refrigerator, and the signal transmission modules are installed in the semiconductor refrigerator.

[0024] 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.

[0025] In order to realize three-transmit and three-receive, the signal transmitting module described in this solution includes three signal transmitting ends and a beam combiner. The three signal transmitting ends are arranged corresponding to the beam combiner, and the beam combiner is used to beam combine the optical signals emitted by the three signal transmitting ends.

[0026] Preferably, since the signal transmission module is installed in the BOX packaging unit, and the optical fiber adapter is installed inside the TO packaging unit, in order to ensure that the optical signal enters the TO packaging unit from the BOX packaging unit, and the optical signal enters the BOX packaging unit from the TO packaging unit. In this solution, the BOX packaging unit and the TO packaging unit are connected through a connecting port, and the connecting port is used for the optical signal to pass through.

[0027] In this solution, a connection port is provided to realize the connection between the BOX packaging unit and the TO packaging unit, thereby realizing the transmission of the optical signal and solving the problem that the optical signal is blocked by the BOX packaging unit and the TO packaging unit.

[0028] Preferably, in order to solve the problem of increased interference caused by the BOX packaging unit and the TO packaging unit being connected to each other, a light-transmitting component is provided at the connection port of the present solution, and the light-transmitting component is used to seal the connection port.

[0029] In this solution, a light-transmitting component is configured at the connection port, which not only seals the connection port but also ensures that the optical signal can be transmitted normally. After the connection port is sealed, the signal transmitting module has less interference with the signal receiving module.

[0030] The beneficial effect of the utility model is that in this solution, the thickness of the BOX packaging unit is set to be smaller than the thickness of the TO packaging unit. Therefore, when installing and using the optical device of the present application, components that may interfere can be accommodated in the accommodating space, thereby solving the interference problem caused by the large size of the optical device in the prior art. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 Schematic diagram of the structure of the new optical device.

[0032] Figure 2 Top view with the cover removed for the new optical device.

[0033] Figure 3 A side view of the novel optical device.

[0034] Figure 4 Schematic diagram of a light-transmitting component.

[0035] Figure 5 Schematic diagram of a signal transmitting module transmitting an optical signal.

[0036] Figure 6 Schematic diagram of a signal receiving module receiving an optical signal.

[0037] The reference numerals include: BOX packaging unit 1, first base 11, first cover 12, TO packaging unit 2, second base 21, second cover 22, groove 23, wavelength division multiplexing / demultiplexing component 3, optical fiber adapter 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, second signal receiving end 62, third signal receiving end 63, photodetector 631, right-angle prism 632, translation prism 633, filter 634, reflector 64, coupling lens 65, light-transmitting component 7, mounting groove 71, and accommodating groove 72. DETAILED DESCRIPTION

[0038] 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.

[0039] 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.

[0040] 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.

[0041] Basically as attached Figure 1 To Attachment Figure 2 As shown, a novel optical device includes a BOX packaging unit 1, a TO packaging unit 2, a wavelength division multiplexing / demultiplexing component 3, an optical fiber adapter 4, a signal transmitting module 5 and a signal receiving module 6.

[0042] In the embodiment of the present disclosure, the signal transmitting module 5 includes three signal transmitting terminals. The three signal transmitting terminals include a first signal transmitting terminal 51, a second signal transmitting terminal 52, and a third signal transmitting terminal 53. In the embodiment of the present disclosure, the signal receiving module 6 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 transmitting terminal 53. In the embodiment of the present disclosure, three transmissions and three receptions are realized by the cooperation of three signal transmitting terminals and three signal receiving terminals.

[0043] It should be noted that: in the embodiment of the present disclosure, the signal transmitting module 5 includes three signal transmitting terminals, and the signal receiving module 6 includes three signal receiving terminals. However, in some other embodiments, the signal transmitting module 5 may not include three signal transmitting terminals, but include other numbers of signal transmitting terminals, such as one, two, four or five. The signal receiving module 6 may not include three signal receiving terminals, but include other numbers of signal receiving terminals, such as one, two, four or five.

[0044] In the embodiment of the present disclosure, the BOX packaging unit 1 and the TO packaging unit 2 are integrally formed, and more preferably, the BOX packaging unit 1 and the TO packaging unit 2 are integrally formed with high thermal conductivity heat dissipation materials, such as tungsten copper, etc. The BOX packaging unit 1 and the TO packaging unit 2 made of high thermal conductivity heat dissipation materials have better heat dissipation effect.

[0045] It should be noted that, in the embodiment of the present disclosure, the TO packaging unit 2 and the BOX packaging unit 1 are preferably formed in one piece.

[0046] like Figure 1 and Figure 2 As shown, in the embodiment of the present disclosure, the BOX packaging unit 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.

[0047] like Figure 1 and Figure 2 As shown, the TO package unit 2 in the disclosed embodiment also includes a second base 21 and a second cover plate 22. A storage compartment is also constructed inside the second base 21 of the TO package unit 2, and the storage compartment is a rectangular compartment. The top of the storage compartment is open, and a second cover plate 22 is arranged at the open top of the storage compartment. The second cover plate 22 closes the storage compartment, so that a closed compartment is formed inside the TO package.

[0048] In the disclosed embodiment, the second base 21 in the TO packaging unit 2 and the first base 11 in the BOX packaging unit 1 are integrally formed, and the bottom surface of the second base 21 in the TO packaging unit 2 and the bottom surface of the first base 11 in the BOX packaging unit 1 are in the same plane. The second base 21 in the TO packaging unit 2 and the first base 11 in the BOX packaging unit 1 can dissipate heat uniformly, with a larger heat dissipation area, thereby achieving better heat dissipation effect.

[0049] like Figure 2 As shown, in the embodiment of the present disclosure, when the tops of the BOX packaging unit 1 and the TO packaging unit 2 are not covered by the cover plate, the tops of the BOX packaging unit 1 and the TO packaging unit 2 are open. Therefore, when producing the optical device, the automation equipment can automatically install the relevant components inside the BOX packaging unit 1 and the TO packaging unit 2, and the installation efficiency is high. Moreover, when the automation equipment uniformly installs the components inside the BOX packaging unit 1 and the TO packaging unit 2, the installation accuracy and coupling accuracy of the components are higher.

[0050] In the embodiment of the present disclosure, the thickness of the BOX packaging unit 1 is preferably lower than that of the TO packaging unit 2, and the bottom of the BOX packaging unit 1 is in the same plane as the bottom of the TO packaging unit 2. Therefore, a receiving space is constructed above the BOX packaging unit 1.

[0051] Take an application scenario as an example: when the optical device in the embodiment of the present disclosure is installed and used, since a storage space is constructed above the BOX packaging unit 1, some components that may interfere (for example, PCB boards) can be placed in the storage space above the BOX packaging unit 1, thereby solving the problem of interference between the optical device and other components in the prior art, and making it more practical. Figure 3 shown.

[0052] In addition, in the embodiment of the present disclosure, a groove 23 is provided at the connection between the BOX packaging unit 1 and the TO packaging unit 2. The groove 23 is specifically located at the top of the TO packaging unit 2, and the cross-section of the groove 23 is preferably rectangular. Since the groove 23 is located at the connection between the BOX packaging unit 1 and the TO packaging unit 2, parts that may interfere can also be extended and placed in the groove 23, and the parts that may interfere can be accommodated by the groove 23, thereby further solving the problem of possible interference. Figure 3 shown.

[0053] In addition, in the embodiment of the present disclosure, the inner bottom of the groove 23 is preferably lower than the top of the BOX packaging unit 1, and the setting direction of the groove 23 is parallel to the top of the BOX packaging unit 1, so that the edge of the cover plate of the BOX packaging unit 1 is in a completely exposed state. Therefore, when the cover plate is welded and fixed using a sealing welding tool, the bottom of the sealing welding tool will not interfere with the TO packaging unit 2, ensuring that the welding tool can normally seal the cover plate. Of course, in order to prevent the groove 23 from interfering with the transmission of the optical signal, the inner bottom of the groove 23 in the embodiment of the present disclosure is higher than the height of the connection port. In other words, the inner bottom of the groove 23 in the embodiment of the present disclosure is higher than the height of the connection port, but lower than the top of the BOX packaging unit 1. The above-mentioned setting method ensures that the groove 23 will not interfere with the transmission of the optical signal, and also makes the top cover plate of the BOX packaging unit 1 in an exposed state.

[0054] In order to connect BOX packaging unit 1 and TO packaging unit 2, Figure 2As shown, in the embodiment of the present disclosure, a connection port is constructed on the side of the first base 11 and the second base 21, and the connection port is rectangular. The BOX packaging unit 1 and the TO packaging unit 2 are interconnected through the connection port to ensure that the optical signal can be transmitted through the connection port. At the same time, in the embodiment of the present disclosure, a light-transmitting component 7 is preferably provided at the connection port, and the light-transmitting component 7 can be a light-transmitting glass, and the light-transmitting component 7 can allow the optical signal 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 to the connection port.

[0055] In the embodiment of the present disclosure, the BOX packaging unit 1 and the TO packaging unit 2 are sealed by the light-transmitting component 7, and both the BOX packaging unit 1 and the TO packaging unit 2 are sealed cabins. When the BOX packaging unit 1 and the TO packaging unit 2 are sealed cabins, the interference of the signal transmitting module 5 on the first signal receiving terminal 61 and the second signal receiving terminal 62 can be further resolved.

[0056] 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 connection port. Figure 4 As shown, in the embodiment of the present disclosure, a boss is provided on the inner side wall of the first base 11, and a mounting groove 71 is constructed on the boss, and the mounting groove 71 is for mounting the light-transmitting component 7. 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. In order to realize the fixed installation of the light-transmitting component 7 in the mounting 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 mounting groove 71.

[0057] 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.

[0058] 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.

[0059] The receiving grooves 72 in the disclosed embodiment are preferably arranged at both ends and in the middle of the bottom of the mounting groove 71. The receiving grooves 72 at both ends are used to receive the solder flowing out from the edges on both sides of the light-transmitting component 7, while the receiving grooves 72 in the middle are used to receive the solder flowing out from the bottom end of the light-transmitting component 7.

[0060] 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. Figure 2 As shown. In order to solve the above problem, the present solution preferably sets the light-transmitting component 7 as an inclined setting. The light-transmitting component 7 can be set as an inclined setting left and right or up and down. By using the light-transmitting component 7 installed at an angle, the light signal is reflected to other directions, and the light signal will not return along the original path, thereby reducing interference.

[0061] In the embodiment of the present disclosure, the signal transmitting module 5 is preferably installed inside the BOX packaging unit 1, and the first signal receiving terminal 61 and the second signal receiving terminal 62 are installed on the TO packaging unit 2. Therefore, the signal transmitting module 5 and the first signal receiving terminal 61 and the second signal receiving terminal 62 are in different packaging units, thereby solving the problem of the signal transmitting module 5 interfering with the first signal receiving terminal 61 and the second signal receiving terminal 62. At the same time, when the first signal receiving terminal 61 and the second signal receiving terminal 62 are independently installed on the TO package, the first signal receiving terminal 61 and the second signal receiving terminal 62 are both independently installed. Compared with installing the first signal receiving terminal 61 and the second signal receiving terminal 62 together, the first signal receiving terminal 61 and the second signal receiving terminal 62 will not interfere with each other.

[0062] like Figure 5 As shown. In the disclosed embodiment, the signal transmitting module 5 is installed inside the BOX packaging unit 1, and the signal transmitting module 5 specifically includes a first signal transmitting terminal 51, a second signal transmitting terminal 52, a third signal transmitting terminal 53, a collimating lens 54, an isolator 55 and a beam combiner 56. The three signal transmitting terminals 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.

[0063] 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 unit 2 from the connection port. The beam combiner 56 in the embodiment of the present disclosure can be a PBS or MUX combiner in the prior art.

[0064] The working process of the signal transmitting module 5 in the embodiment of the present disclosure is as follows (eg Figure 5 As shown, 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 unit 2 from the light-transmitting component 7 at the connection port.

[0065] 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 unit 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.

[0066] 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 unit 1 through the semiconductor refrigerator 57, so that the bottom of the BOX packaging unit 1 and the bottom of the TO packaging unit 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 mounted 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.

[0067] In order to ensure that the optical signal entering the TO package unit 2 can normally enter the optical fiber for transmission, a wavelength division multiplexing / demultiplexing component 3 (Z-Block) is installed inside the TO package unit 2 in the embodiment of the present disclosure, and a fiber optic adapter 4 is provided on the side of the TO package unit 2. The optical signal entering the TO package unit 2 through the connection 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 fiber optic adapter 4. The wavelength division multiplexing / demultiplexing component 3 and the fiber optic adapter 4 can both be wavelength division multiplexing / demultiplexing components 3 and fiber optic adapters 4 in the prior art, and the embodiments of the present disclosure will not be described in detail.

[0068] like Figure 6 As shown, the signal receiving module 6 in the embodiment of the present disclosure includes a first signal receiving terminal 61, a second signal receiving terminal 62 and a third signal receiving terminal 63. In the embodiment of the present disclosure, the first signal receiving terminal 61 and the second signal receiving terminal 62 are both TO receiving components, and the first signal receiving terminal 61 and the second signal receiving terminal 62 are respectively installed on the front and rear side walls of the TO packaging unit 2. At the same time, the first signal receiving terminal 61 and the second signal receiving terminal 62 are correspondingly configured with a coupling lens 65.

[0069] The first signal receiving terminal 61 and the second signal receiving terminal 62 provided in the TO packaging unit 2 are less interfered by the signal transmitting module installed in the BOX packaging unit 1. At the same time, the first signal receiving terminal 61 and the second signal receiving terminal 62 are independently installed in TO, and compared with the first signal receiving terminal 61 and the second signal receiving terminal 62 being installed together, the first signal receiving terminal 61 and the second signal receiving terminal 62 will not interfere with each other.

[0070] The third signal receiving end 63 in the embodiment of the present disclosure is preferably arranged inside the BOX packaging unit 1, so that the size of the entire optical device is smaller. The third signal receiving end 63 in the embodiment of the present disclosure includes a photodetector 631, and the photoelectric sensor is installed inside the BOX packaging unit 1. In order to ensure that the optical signal can enter the photodetector 631, a translation prism 633 and a right-angle prism 632 are also installed inside the BOX packaging unit 1 in the embodiment of the present disclosure. The right-angle prism 632 is arranged corresponding to the photodetector 631, and the right-angle prism 632 includes two right-angle surfaces perpendicular to each other. The right-angle prism 632 is located between the photodetector 631 and the translation prism 633, and the right-angle prism 632 is located above the photodetector 631. The transmission direction of the optical signal is vertically changed by the right-angle prism 632, so that the optical signal can be vertically incident on the PD photosensitive surface of the photodetector 631. The translation prism 633 is arranged at the connection port of the BOX packaging unit 1, and the translation prism 633 is arranged corresponding to the right-angle prism 632. The translation prism 633 is in the shape of a parallelogram. The optical signal entering from the connection port can change the transmission direction of the optical signal through the translation prism 633, so that the optical signal can be normally irradiated to the right-angle prism 632. In the embodiment of the present disclosure, a coupling lens 65 is also provided between the right-angle prism 632 and the translation prism 633.

[0071] Since the third signal receiving terminal 63 is located inside the BOX package, in order to solve the interference of the signal transmitting module 5 on the third signal receiving terminal 63, a filter 634 is arranged between the coupling lens 65 and the translation prism 633 in the embodiment of the present disclosure, and the filter 634 is used to solve the problem of interference to the third signal receiving terminal 63.

[0072] The working process of the signal receiving module 6 receiving the optical signal is as follows (eg Figure 6 As shown, the arrows in the figure are the transmission directions of the optical signals): the optical signal is output from the optical fiber adapter 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 reflective sheet 64, and the reflective sheet 64 realizes reflecting the first optical signal and the second optical signal to the first signal receiving end 61 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 connection port, and the third optical signal enters the interior of the BOX packaging unit 1 through the connection port, and is received by the third signal receiving end 63 located inside the BOX packaging unit 1.

[0073] 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 novel optical device, characterized in that: It includes a BOX packaging unit and a TO packaging unit, wherein the BOX packaging unit and the TO packaging unit are connected. The thickness of the BOX packaging unit is smaller than that of the TO packaging unit, so that a receiving space is constructed at the BOX packaging unit.

2. The novel optical device according to claim 1, characterized in that: The bottoms of the BOX packaging unit and the TO packaging unit are in the same plane, so that the accommodating space is constructed above the BOX packaging unit.

3. The novel optical device according to claim 1, characterized in that: A groove is provided at the connection between the TO packaging unit and the BOX packaging unit.

4. The novel optical device according to claim 3, characterized in that: The groove is arranged at the upper end of the TO packaging unit, and the inner bottom of the groove is lower than the top of the BOX packaging unit.

5. The novel optical device according to claim 3, characterized in that: The groove is a straight groove, and the groove is arranged parallel to the top edge of the BOX packaging unit; and / or; The groove has a rectangular cross section.

6. The novel optical device according to claim 1, characterized in that: It also includes a signal transmitting module and a signal receiving module, wherein the signal transmitting module is used to transmit an optical signal, and the signal receiving module is used to receive an optical signal.

7. The novel optical device according to claim 6, characterized in that: The signal transmitting module is installed inside the BOX packaging unit, and at least one signal receiving end of the signal receiving module is installed in the TO packaging unit.

8. The novel optical device according to claim 6, characterized in that: It also includes a wavelength division multiplexing / demultiplexing component and an optical fiber adapter, wherein the wavelength division multiplexing / demultiplexing component and the optical fiber adapter are installed in the TO packaging unit; The wavelength division multiplexing / demultiplexing component is adapted to be installed with the signal receiving module and the signal transmitting module, and the optical fiber adapter is installed corresponding to the wavelength division multiplexing / demultiplexing component; and / or; It also includes a semiconductor refrigerator, and the signal transmission modules are installed on the semiconductor refrigerator; and / or; The signal transmitting module includes three signal transmitting ends and a beam combiner. The three signal transmitting ends are arranged corresponding to the beam combiner. The beam combiner is used to beam combine the optical signals emitted by the three signal transmitting ends.

9. The novel optical device according to any one of claims 1 to 8, characterized in that: The BOX packaging unit is connected to the TO packaging unit via a connecting port, and the connecting port is used for optical signal transmission.

10. The novel optical device according to claim 9, characterized in that: A light-transmitting component is arranged at the connection port, and the light-transmitting component is used to seal the connection port.

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