Coaxially-packaged integrated device with VOA and ISO functions

Abstract

The utility model provides a coaxially packaged VOA + ISO function integrated device, which comprises a pin assembly, a polarization assembly, a collimating lens, an optical rotation assembly and a rotating mirror chip, the pin assembly emits optical signals, and the polarization assembly, the collimating lens, the optical rotation assembly and the rotating mirror chip are sequentially arranged along an optical path; the polarization assembly is arranged at one end, facing the collimating lens, of the pin assembly, and the optical rotation assembly is arranged at one end, facing the rotating mirror chip, of the collimating lens; by adjusting the angle of the rotating mirror chip, optical signals emitted by the pin assembly are reflected back to the pin assembly at different angles, so that the receiving area of the pin assembly for the optical signals is adjusted, and power attenuation adjustment of the optical signals is further achieved. The polarization assembly and the optical rotation assembly are used for isolating interference light input by the pin assembly from the outside; through the above structure, the function of the optical isolator and the function of the adjustable attenuator are integrated in the same device, compared with a single discrete device, the size is smaller and more compact, and more spatial layout requirements can be met.

Description

Technical Field

[0001] The utility model relates to the technical field of optical communication, in particular to an integrated device with VOA+ISO functions of coaxial packaging. Background Art

[0002] With the upgrade and iteration of communication coherent technology, the requirements for the size and integration of passive components are gradually increasing. The evolution from the Centum Form-Factor Pluggable Module 2 (CFP2) to the Quad Small Form-factor Pluggable Double-Density (QSFP-DD) has given rise to a new generation of smaller and more integrated passive components. In the CFP2 module, there is space for discrete components (which can be understood as a single package module), such as discrete optical isolators (ISO) and variable optical attenuators (VOA). Compared with the CFP2 module, the QSFP-DD module is half the size, and the discrete components occupy a larger space, so it is difficult for the QSFP-DD module to accommodate the above discrete components.

[0003] In view of this, overcoming the defects of the prior art is an urgent problem to be solved in the field of this technology. Utility Model Content

[0004] The problem to be solved by the utility model is how to integrate the function of an optical isolator and the function of an adjustable attenuator into the same device.

[0005] In a first aspect, a coaxial packaged VOA+ISO function integrated device is provided, comprising: a pin assembly 1, a polarization assembly 2, a collimating lens 3, an optical rotation assembly 4 and a rotating mirror chip 5, wherein:

[0006] The pin assembly 1 is used to transmit an optical signal, and the polarization assembly 2, the collimating lens 3, the optical rotation assembly 4 and the rotating mirror chip 5 are sequentially arranged along the optical path of the optical signal transmitted by the pin assembly 1;

[0007] The polarization component 2 is arranged at one end of the pin component 1 facing the collimating lens 3, and the optical rotation component 4 is arranged at one end of the collimating lens 3 facing the rotating mirror chip 5;

[0008] The pin assembly 1 is used to output an optical signal to the rotating mirror chip 5. The rotating mirror chip 5 is used to adjust its own angle to reflect the received optical signal back to the pin assembly 1 at different angles, thereby adjusting the receiving area of ​​the pin assembly 1 for the optical signal, thereby achieving power attenuation adjustment of the optical signal; the polarization assembly 2 and the optical rotation assembly 4 are used to isolate interference light input from the outside.

[0009] Preferably, the polarization component 2 comprises a polarizing beam splitter 21 and a half-wave plate 22, wherein:

[0010] The polarizing beam splitter 21 is arranged on one end of the pin assembly 1 facing the collimating lens 3, and the half-wave plate 22 is arranged on one end of the polarizing beam splitter 21 facing the collimating lens 3. The half-wave plate 22 is also located on the emitting light path or the receiving light path of the pin assembly 1.

[0011] Preferably, the optical rotation component 4 comprises a Faraday rotator 41 and a magnetic ring 42, wherein:

[0012] The Faraday rotator 41 is disposed on one end of the collimating lens 3 facing the rotating mirror chip 5 . The magnetic ring 42 is sleeved on the periphery of the collimating lens 3 , and the magnetic ring 42 surrounds the circumference of the Faraday rotator 41 .

[0013] Preferably, the pin assembly 1 comprises a dual-core capillary 11, a transmitting optical fiber 12 and a receiving optical fiber 13, wherein:

[0014] One end of the double-core capillary 11 faces the collimating lens 3;

[0015] At least two core holes are provided in the dual-core capillary 11, and both of the core holes pass through the two ends of the dual-core capillary 11. The transmitting optical fiber 12 is located in one of the core holes and extends to the end face position of the dual-core capillary 11 facing the collimating lens 3. The receiving optical fiber 13 is located in the other core hole and extends to the end face position of the dual-core capillary 11 facing the collimating lens 3.

[0016] Preferably, the coaxial packaged VOA+ISO function integrated device further includes a base 61, a positive pin 62 and a negative pin 63, wherein:

[0017] One side of the base 61 faces the collimating lens 3, and the rotating mirror chip 5 is arranged on the side of the base 61 facing the collimating lens 3;

[0018] The positive pin 62 and the negative pin 63 are both arranged on the other side of the base 61 , and the positive pin 62 and the negative pin 63 pass through the base 61 to connect with the rotating mirror chip 5 .

[0019] Preferably, the coaxial packaged VOA+ISO functional integrated device further includes a gasket 7 , and the gasket 7 is arranged between the rotating mirror chip 5 and the base 61 .

[0020] Preferably, the coaxial packaged VOA+ISO integrated device further comprises a sealed housing 8, wherein:

[0021] One end of the sealed shell 8 is sleeved on the periphery of the collimating lens 3 and fixed to the periphery of the collimating lens 3, and the other end of the sealed shell 8 is arranged on the side of the base 61 facing the collimating lens 3, and the rotating mirror chip 5 and the optical rotation component 4 are located inside the sealed shell 8.

[0022] Preferably, the sealing housing 8 comprises a first sleeve portion 81 and a second sleeve portion 82 connected to each other, wherein:

[0023] The first sleeve portion 81 and the second sleeve portion 82 are coaxially arranged;

[0024] The first sleeve portion 81 is sleeved on the periphery of the collimating lens 3 ; the second sleeve portion 82 is connected to the side of the base 61 facing the collimating lens 3 , and the optical rotation component 4 and the rotating mirror chip 5 are both located in the second sleeve portion 82 .

[0025] Preferably, the inner diameter of the first sleeve portion 81 is smaller than the inner diameter of the second sleeve portion 82, and the outer diameter of the first sleeve portion 81 is smaller than the outer diameter of the second sleeve portion 82;

[0026] A limiting surface 83 is provided between the first sleeve portion 81 and the second sleeve portion 82 , and the limiting surface 83 faces the pin assembly 1 .

[0027] Preferably, the coaxial packaged VOA+ISO integrated device further comprises a housing sleeve 9, wherein:

[0028] One end of the outer casing sleeve 9 is sleeved on the periphery of the first casing portion 81 and fixed to the periphery of the first casing portion 81, and the end surface of the outer casing sleeve 9 facing away from the pin assembly 1 is in contact with the limiting table 83;

[0029] The other end of the housing sleeve 9 is sleeved on the periphery of the pin assembly 1 and fixed to the periphery of the pin assembly 1 .

[0030] The utility model provides an integrated device of VOA+ISO function in a coaxial package, comprising: a pin assembly 1, a polarization assembly 2, a collimating lens 3, an optical rotation assembly 4 and a rotating mirror chip 5, wherein the pin assembly 1 emits an optical signal, and the polarization assembly 2, the collimating lens 3, the optical rotation assembly 4 and the rotating mirror chip 5 are sequentially arranged along the optical path; the polarization assembly 2 is arranged at one end of the pin assembly 1 facing the collimating lens 3, and the optical rotation assembly 4 is arranged at one end of the collimating lens 3 facing the rotating mirror chip 5; by adjusting the angle of the rotating mirror chip 5, the optical signal emitted by the pin assembly 1 is reflected back to the pin assembly 1 at different angles, thereby adjusting the receiving area of ​​the pin assembly 1 for the optical signal, and further realizing the power attenuation adjustment of the optical signal; the polarization assembly 2 and the optical rotation assembly 4 are used to isolate the interference light input from the outside to the pin assembly 1; through the above structure, the function of the optical isolator and the function of the adjustable attenuator are integrated into the same device, and compared with a single discrete device, the size is smaller and more compact, and can meet more space layout needs. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0032] Figure 1 A schematic diagram of the structure of an integrated device with VOA+ISO functions in a coaxial package provided by an embodiment of the utility model;

[0033] Figure 2 A schematic diagram of the structure of another coaxial packaged VOA+ISO function integrated device provided by an embodiment of the utility model;

[0034] Figure 3 A schematic diagram of the structure of another coaxial packaged VOA+ISO function integrated device provided by an embodiment of the utility model;

[0035] Figure 4 A schematic diagram of the structure of another coaxial packaged VOA+ISO function integrated device provided by an embodiment of the utility model;

[0036] Figure 5 A schematic diagram of the structure of another coaxial packaged VOA+ISO function integrated device provided by an embodiment of the utility model;

[0037] The accompanying drawings are numbered as follows:

[0038] Pin assembly 1; double-core capillary 11; transmitting optical fiber 12; receiving optical fiber 13; polarization assembly 2; polarizing beam splitter 21; half-wave plate 22; collimating lens 3; optical rotation assembly 4; Faraday rotator 41; magnetic ring 42; rotating mirror chip 5; base 61; positive pin 62; negative pin 63; gasket 7; sealed shell 8; first sleeve portion 81; second sleeve portion 82; limiting table 83; shell sleeve 9; metal tube shell 10. DETAILED DESCRIPTION

[0039] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0040] In the description of the present invention, it should be understood that the terms "center", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present disclosure and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present disclosure.

[0041] In the description of the present utility model, the terms "first" and "second" are used for descriptive purposes only, and shall not be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features. Thus, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the embodiments of the present disclosure, unless otherwise specified, the meaning of "multiple" is two or more. In addition, for example, the description may also use the method of adding "A" and "B" at the end to describe the same type of nouns as two independent individuals. In this case, the corresponding features defined as "A" and "B" are only used to distinguish the same type of individuals for description purposes, and shall not be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features.

[0042] When describing some embodiments, the expressions "coupling", "coupling" and "connection" and their derivatives may be used. For example, when describing some embodiments, the term "connection" may be used to indicate that two or more components are in direct physical or electrical contact with each other. For another example, when describing some embodiments, the term "coupling" may be used to indicate that two or more components are in direct physical or electrical contact. However, the terms "connection" or "coupling" may also refer to two or more components that are not in direct contact with each other, but still cooperate or interact with each other, such as "optical path coupling", "wireless connection", etc. The embodiments disclosed here are not necessarily limited to the contents of the present utility model.

[0043] In the description of the present utility model, "A and / or B" will be involved, wherein A and B are used to formally represent specific characteristic contents, and the corresponding expressions include the following three combinations: only A, only B, and a combination of A and B.

[0044] As used herein, “about,” “substantially,” or “approximately” includes the stated value and an average value that is within an acceptable range of deviation for the particular value as determined by one of ordinary skill in the art taking into account the measurement in question and the errors associated with the measurement of the particular quantity, i.e., the limitations of the measurement system.

[0045] Unless the context requires otherwise, throughout the specification and claims, the term "including" is to be interpreted as open inclusion, that is, "including, but not limited to". In the description of the specification, the terms "one embodiment", "some embodiments", "exemplary embodiments", "examples", "specific examples" or "some examples" and the like are intended to indicate that specific features, structures, materials or characteristics associated with the embodiment or example are included in at least one embodiment or example of the present disclosure. The schematic representation of the above terms does not necessarily refer to the same embodiment or example. In addition, the specific features, structures, materials or characteristics may be included in any one or more embodiments or examples in any appropriate manner, that is, although they may be carried in the embodiments or examples of the above terms due to reasons such as the order and position of appearance, it is not limited to that they can be carried in combination by one embodiment or example.

[0046] In addition, the technical features involved in each embodiment of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0047] Embodiment 1:

[0048] Embodiment 1 of the present invention provides a coaxial package VOA+ISO function integrated device, such as Figure 1As shown, it includes: a pin component 1, a polarization component 2, a collimating lens 3, an optical rotation component 4 and a rotating mirror chip 5, wherein: the pin component 1 is used to transmit an optical signal, and the polarization component 2, the collimating lens 3, the optical rotation component 4 and the rotating mirror chip 5 are arranged in sequence along the optical path of the optical signal emitted by the pin component 1; the polarization component 2 is arranged at one end of the pin component 1 facing the collimating lens 3, and the optical rotation component 4 is arranged at one end of the collimating lens 3 facing the rotating mirror chip 5.

[0049] The pin assembly 1 is used to output an optical signal to the rotating mirror chip 5. The rotating mirror chip 5 is used to adjust its own angle and reflect the received optical signal back to the pin assembly 1 at different angles, thereby adjusting the receiving area of ​​the pin assembly 1 for the optical signal, thereby achieving power attenuation adjustment of the optical signal; the polarization assembly 2 and the optical rotation assembly 4 are used to isolate interference light input from the outside.

[0050] In this embodiment, Figure 2 As shown, at least two optical fibers are provided in the pin assembly 1, one of which is a transmitting optical fiber 12 and the other is a receiving optical fiber 13. The transmitting optical fiber 12 is used to connect with the light source device at the external end, and the optical signal is input into the device through the light source device at the external end. After the optical signal is reflected by the rotating mirror chip 5 inside the device, it is reflected to the receiving optical fiber 13, and is transmitted to the outside of the device through the receiving optical fiber 13, and is received by other external devices.

[0051] In this embodiment, the rotating mirror chip 5 includes a reflective rotating mirror and a bottom plate, the reflective rotating mirror is arranged on the bottom plate, the reflective rotating mirror can be made of magnetic material, the positive electrode and the negative electrode on the bottom plate are respectively connected to the external device, and the external device transmits corresponding voltages to the positive electrode and the negative electrode of the rotating mirror chip 5, thereby adjusting the electromagnetic force of the positive electrode or the negative electrode on the bottom plate to attract the reflective rotating mirror to different degrees, and realize the deflection of the reflective rotating mirror at different angles, so as to reflect the optical signal from the transmitting optical fiber 12 to the receiving optical fiber 13 at different angles, so that the receiving area of ​​the receiving optical fiber 13 for the optical signal changes, thereby realizing the power attenuation adjustment of the optical signal. In this embodiment, the rotating mirror chip 5 can be a one-dimensional micro-opto-electromechanical system rotating mirror chip.

[0052] Taking external environmental factors into consideration, external interference light signals may be introduced into the device through the receiving optical fiber 13. After being introduced along the receiving optical fiber 13, the interference light signal will be reflected by the rotating mirror chip 5 to the transmitting optical fiber 12, and transmitted along the transmitting optical fiber 12 to the external light source device, which will affect the light source device. Therefore, while realizing the power attenuation adjustment of the optical signal as mentioned above, a polarization component 2 and a rotation component 4 are also provided in this embodiment, and a gyromagnetic effect is generated by the polarization component 2 and the rotation component 4, thereby isolating the interference light signal from the receiving optical fiber 13.

[0053] Through the above structural design, the functions of the optical attenuator and the isolator are integrated into the same device. Compared with a single discrete device, it has the advantages of compact structure, small size and multiple functions, saving a lot of installation space and meeting more space layout needs.

[0054] Furthermore, in this embodiment, the polarization component 2 involves the following design: Figure 2 As shown, the polarization component 2 includes a polarizing beam splitter 21 and a half-wave plate 22, wherein: the polarizing beam splitter 21 is arranged on the end of the pin component 1 facing the collimating lens 3, the half-wave plate 22 is located on the end of the polarizing beam splitter 21 facing the collimating lens 3, and the half-wave plate 22 is also located on the emitting light path or the receiving light path of the pin component 1.

[0055] The polarizing beam splitter 21 and the collimating lens 3 may be fixed by gluing, and the polarizing beam splitter 21 and the half-wave plate 22 may be fixed by gluing.

[0056] Furthermore, in this embodiment, the optical rotation component 4 involves the following design: Figure 2 As shown, the optical rotation component 4 includes a Faraday rotator 41 and a magnetic ring 42, wherein: the Faraday rotator 41 is arranged on one end of the collimating lens 3 facing the rotating mirror chip 5, the magnetic ring 42 is sleeved on the periphery of the collimating lens 3, and the magnetic ring 42 surrounds the circumferential side position of the Faraday rotator 41.

[0057] The magnetic ring 42 and the periphery of the collimating lens 3 can be fixed by gluing, and the Faraday rotator 41 and the collimating lens 3 can be fixed by gluing. The Faraday rotator 41 is located in the inner ring of the magnetic ring 42, and the Faraday rotator 41 generates a gyromagnetic effect through the internal magnetic field of the magnetic ring 42 to achieve isolation of the interfering light signal.

[0058] Furthermore, in this embodiment, the pin assembly 1 involves the following design: Figure 2 As shown, the pin assembly 1 includes a dual-core capillary 11, a transmitting optical fiber 12 and a receiving optical fiber 13, wherein: one end of the dual-core capillary 11 faces the collimating lens 3; at least two core holes are provided in the dual-core capillary 11, and the two core holes pass through the two ends of the dual-core capillary 11, the transmitting optical fiber 12 is located in one of the core holes, and extends to the end face position of the dual-core capillary 11 facing the collimating lens 3, and the receiving optical fiber 13 is located in the other core hole, and extends to the end face position of the dual-core capillary 11 facing the collimating lens 3.

[0059] The polarizing beam splitter 21 is disposed on the end surface of the double-core capillary 11 facing the collimating lens 3, and the double-core capillary 11 has a preset inclination angle toward the collimating lens 3, which is set by a person skilled in the art.

[0060] like Figure 3 As shown, the coaxial packaged VOA+ISO function integrated device also includes a base 61, a positive pin 62 and a negative pin 63, wherein: one side of the base 61 faces the collimating lens 3, and the rotating mirror chip 5 is arranged on the side of the base 61 facing the collimating lens 3; the positive pin 62 and the negative pin 63 are both arranged on the other side of the base 61, and the positive pin 62 and the negative pin 63 both pass through the base 61 to connect with the rotating mirror chip 5.

[0061] In this embodiment, the rotating mirror chip 5 can be connected to the positive pin 62 and the negative pin 63 through gold wires, and the positive pin 62 and the negative pin 63 are respectively connected to external devices, and the external devices provide corresponding voltages to the positive pin 62 and the negative pin 63, thereby achieving adjustment of the rotating mirror chip 5.

[0062] like Figure 3 As shown, the coaxial packaged VOA+ISO functional integrated device further includes a gasket 7 , and the gasket 7 is arranged between the rotating mirror chip 5 and the base 61 .

[0063] In this embodiment, the gasket 7 can be fixed on the base 61 by gluing, and the gasket 7 can be a wedge-shaped piece with an angle, and can be made of glass or ceramic, and the corresponding angle can be 2.5 degrees to 4.5 degrees. The gasket 7 is used to optimize the optical path and improve the wavelength-related loss.

[0064] Furthermore, in order to relatively fix the collimating lens 3 and the rotating mirror chip 5 in position, this embodiment also involves the following design: Figure 4 As shown, the coaxially packaged VOA+ISO functional integrated device also includes a sealed housing 8, wherein: one end of the sealed housing 8 is sleeved on the periphery of the collimating lens 3 and fixed to the periphery of the collimating lens 3, and the other end of the sealed housing 8 is arranged on the side of the base 61 facing the collimating lens 3, and the rotating mirror chip 5 and the optical rotation component 4 are located inside the sealed housing 8.

[0065] Furthermore, considering that after the magnetic ring 42 is arranged on the periphery of the collimating lens 3, the outer diameter of the magnetic ring 42 is larger than the outer diameter of the collimating lens 3, and the length of the magnetic ring 42 is smaller than the length of the collimating lens 3, if the sealed housing 8 is sleeved on the periphery of the magnetic ring 42 for fixing, the fixing stability may be poor due to the small area of ​​the fixing surface. Therefore, the present embodiment also involves the following designs: Figure 4 As shown, the sealed housing 8 includes a first sleeve portion 81 and a second sleeve portion 82 which are connected to each other, wherein: the first sleeve portion 81 and the second sleeve portion 82 are coaxially arranged; the first sleeve portion 81 is sleeved on the periphery of the collimating lens 3; the second sleeve portion 82 is connected to the base 61 on the side facing the collimating lens 3, and the optical rotation component 4 and the rotating mirror chip 5 are both located in the second sleeve portion 82.

[0066] The inner diameter of the first sleeve portion 81 is smaller than the inner diameter of the second sleeve portion 82 , and the outer diameter of the first sleeve portion 81 is smaller than the outer diameter of the second sleeve portion 82 ; a limiting table 83 is provided between the first sleeve portion 81 and the second sleeve portion 82 , and the limiting table 83 faces the pin assembly 1 .

[0067] In this embodiment, the inner diameter of the first sleeve portion 81 is slightly larger than the outer diameter of the collimating lens 3 and smaller than the outer diameter of the magnetic ring 42. The inner diameter of the second sleeve portion 82 is larger than the outer diameter of the magnetic ring 42. The first sleeve portion 81 and the collimating lens 3 that is not sleeved with the magnetic ring 42 are fixed together. The second sleeve portion 82 is used to accommodate the magnetic ring 42 and the part of the collimating lens 3 that is sleeved with the magnetic ring 42. At the same time, the second sleeve portion 82 is connected to the base 61, and the rotating mirror chip 5 and the gasket 7 are also inside the second sleeve portion 82.

[0068] Furthermore, in order to relatively fix the collimating lens 3 and the pin assembly 1, the present embodiment also involves the following design: the coaxially packaged VOA+ISO function integrated device also includes a shell sleeve 9, wherein one end of the shell sleeve 9 is sleeved on the periphery of the first sleeve portion 81 and fixed to the periphery of the first sleeve portion 81, and the end face of the shell sleeve 9 facing away from the pin assembly 1 is in contact with the limiting table 83; the other end of the shell sleeve 9 is sleeved on the periphery of the pin assembly 1 and fixed to the periphery of the pin assembly 1.

[0069] Further, based on the above structure, in this embodiment, Figure 5As shown, the coaxially packaged VOA+ISO function integrated device also includes a metal tube shell 10, which is in the shape of a hollow column. One end of the metal tube shell 10 is connected to the side of the base 61 facing the collimating lens 3, and the other end of the metal tube shell 10 is sleeved on the outer periphery of the dual-core capillary 11. Most of the dual-core capillary 11, the shell sleeve 9 and the sealing shell 8 are all inside the metal tube shell 10, so that most of the components in the device are accommodated in the metal tube shell 10, thereby realizing protection for each component in the device.

[0070] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A coaxial packaged VOA+ISO function integrated device, characterized in that: include: A pin assembly (1), a polarization assembly (2), a collimating lens (3), an optical rotation assembly (4) and a rotating mirror chip (5), wherein: The pin assembly (1) is used to transmit an optical signal, and the polarization assembly (2), the collimating lens (3), the optical rotation assembly (4) and the rotating mirror chip (5) are arranged in sequence along the optical path of the optical signal transmitted by the pin assembly (1); The polarization component (2) is arranged at one end of the pin component (1) facing the collimating lens (3), and the optical rotation component (4) is arranged at one end of the collimating lens (3) facing the rotating mirror chip (5); The pin assembly (1) is used to output an optical signal to the rotating mirror chip (5); the rotating mirror chip (5) is used to adjust its own angle to reflect the received optical signal back to the pin assembly (1) at different angles, thereby adjusting the receiving area of ​​the pin assembly (1) for the optical signal, thereby achieving power attenuation adjustment of the optical signal; the polarization assembly (2) and the optical rotation assembly (4) are used to isolate interference light input from the outside.

2. The integrated device of VOA+ISO function in coaxial package according to claim 1, characterized in that: The polarization component (2) comprises a polarizing beam splitter (21) and a half-wave plate (22), wherein: The polarizing beam splitter (21) is arranged on one end of the pin assembly (1) facing the collimating lens (3), the half-wave plate (22) is arranged on one end of the polarizing beam splitter (21) facing the collimating lens (3), and the half-wave plate (22) is also located on the emitting light path or the receiving light path of the pin assembly (1).

3. The integrated device of VOA+ISO function in coaxial package according to claim 1, characterized in that: The optical rotation component (4) comprises a Faraday rotator (41) and a magnetic ring (42), wherein: The Faraday rotator (41) is arranged on one end of the collimating lens (3) facing the rotating mirror chip (5), the magnetic ring (42) is sleeved on the periphery of the collimating lens (3), and the magnetic ring (42) surrounds the circumferential side of the Faraday rotator (41).

4. The integrated device with VOA+ISO functions in a coaxial package according to claim 1, characterized in that: The pin assembly (1) comprises a double-core capillary (11), a transmitting optical fiber (12) and a receiving optical fiber (13), wherein: One end of the double-core capillary (11) faces the collimating lens (3); At least two core holes are provided in the double-core capillary (11), and both core holes pass through two ends of the double-core capillary (11). The transmitting optical fiber (12) is located in one of the core holes and extends to an end surface position of the double-core capillary (11) facing one end of the collimating lens (3). The receiving optical fiber (13) is located in the other core hole and extends to an end surface position of the double-core capillary (11) facing one end of the collimating lens (3).

5. The coaxial packaged VOA+ISO function integrated device according to claim 1, characterized in that: The coaxial packaged VOA+ISO functional integrated device further includes a base (61), a positive electrode pin (62) and a negative electrode pin (63), wherein: One side of the base (61) faces the collimating lens (3), and the rotating mirror chip (5) is arranged on a side of the base (61) facing the collimating lens (3); The positive electrode pin (62) and the negative electrode pin (63) are both arranged on the other side of the base (61), and the positive electrode pin (62) and the negative electrode pin (63) both pass through the base (61) and are connected to the rotating mirror chip (5).

6. The integrated device with VOA+ISO functions in a coaxial package according to claim 5, characterized in that: The coaxially packaged VOA+ISO functional integrated device further comprises a gasket (7), wherein the gasket (7) is arranged between the rotating mirror chip (5) and the base (61).

7. The integrated device with VOA+ISO functions in a coaxial package according to claim 6, characterized in that: The coaxial packaged VOA+ISO function integrated device further comprises a sealed housing (8), wherein: One end of the sealed housing (8) is sleeved on the periphery of the collimating lens (3) and fixed to the periphery of the collimating lens (3); the other end of the sealed housing (8) is arranged on a side surface of the base (61) facing the collimating lens (3); and the rotating mirror chip (5) and the optical rotation component (4) are located inside the sealed housing (8).

8. The coaxial packaged VOA+ISO function integrated device according to claim 7, characterized in that: The sealed housing (8) comprises a first sleeve portion (81) and a second sleeve portion (82) connected to each other, wherein: The first sleeve portion (81) and the second sleeve portion (82) are coaxially arranged; The first sleeve portion (81) is sleeved on the periphery of the collimating lens (3); the second sleeve portion (82) is connected to the side of the base (61) facing the collimating lens (3); and the optical rotation component (4) and the rotating mirror chip (5) are both located in the second sleeve portion (82).

9. The integrated device with VOA+ISO functions in a coaxial package according to claim 8, characterized in that: The inner diameter of the first sleeve portion (81) is smaller than the inner diameter of the second sleeve portion (82), and the outer diameter of the first sleeve portion (81) is smaller than the outer diameter of the second sleeve portion (82); A limiting surface (83) is provided between the first sleeve portion (81) and the second sleeve portion (82), and the limiting surface (83) faces the insertion pin assembly (1).

10. The integrated device with VOA+ISO functions in a coaxial package according to claim 9, characterized in that: The coaxial packaged VOA+ISO function integrated device further comprises a housing sleeve (9), wherein: One end of the outer shell sleeve (9) is sleeved on the periphery of the first sleeve portion (81) and fixed to the periphery of the first sleeve portion (81), and an end surface of the outer shell sleeve (9) facing away from the pin assembly (1) is in contact with the limiting table (83); The other end of the outer shell sleeve (9) is sleeved on the periphery of the pin assembly (1) and is fixed to the periphery of the pin assembly (1).

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