Optical splitter and optical network system

Abstract

The utility model provides an optical splitter and an optical network system, and relates to the field of optical communication. An optical splitter includes: a housing on which an insertion port is formed; the light splitting element is arranged in the shell, and an optical fiber port of the light splitting element is exposed through the plugging port; the cover body is matched with the plugging port and is provided with a through hole corresponding to the optical fiber port; the optical splitter further comprises a rotating mechanism. The rotating mechanism comprises a rack which is arranged on the side wall of the shell; a gear matched with the rack is arranged on the peripheral side of a main body of the rotating shaft; the connecting rod connects the rotating shaft and the cover body; when the cover body is turned over in the direction of exposing the plugging port, the cover body is driven to move in the direction away from the shell by moving the rotating shaft from the first position to the second position along the rack, and when the cover body is turned over in the direction of shielding the plugging port, the cover body is driven to move in the direction close to the shell by rotating the rotating shaft from the second position to the first position along the rack. Through the above arrangement, the maintenance efficiency of the optical splitter is improved.

Description

Technical Field

[0001] The present invention relates to the field of optical communication technology, and in particular to an optical splitter and an optical network system. Background Art

[0002] With the development of network technology, data transmission based on electrical signals has gradually reached a bottleneck. Therefore, in some scenarios, data transmission is gradually carried out through optical signals. In the scenario of optical network deployment, it includes ONU (Optical Network Unit), splitter and OLT (Optical Line Terminal). The optical fiber output by ONU is connected to the splitter for splitting, and the split light is connected to OLT to provide optical fiber access to the user's house.

[0003] The optical splitter is usually fixed to the wall and provides an optical fiber port (divided into an optical fiber access port and an optical fiber output port) to the outside. After the access optical fiber is connected to the optical fiber access port, it is split to form several output optical fibers for connection to the OLT. Among them, the optical splitter, as the main optical device, needs to have good dust and vibration resistance. Therefore, a cover plate is set on the side where the optical fiber port of the optical splitter is set, and a through hole for the optical fiber outlet is set on the cover plate. When the optical fiber needs to be plugged in, the cover plate is opened to form an opening to expose the optical fiber port for plugging. When the plugging is completed, the cover plate is used to close one side of the opening, and the optical fiber outlet is kept through the through hole.

[0004] In the current implementation, workers need to remove the cover to plug in the optical fiber. The cover is separated from the shell of the splitter, and alignment is required when reinstalling the cover. It is difficult to quickly complete the optical fiber plugging into the splitter, reducing the efficiency of optical fiber plugging and unplugging of the splitter. Summary of the invention

[0005] In order to overcome the problems existing in the related art, this specification provides a splitter and an optical network system.

[0006] According to a first aspect of an embodiment of this specification, there is provided a spectrometer, including:

[0007] A housing having an insertion interface formed thereon;

[0008] A light splitting element is disposed in the housing, and an optical fiber port of the light splitting element is exposed through the plug port;

[0009] A cover body, matched with the plug interface, and provided with a through hole corresponding to the optical fiber port;

[0010] Wherein, the optical splitter further comprises a rotating mechanism;

[0011] The rotating mechanism comprises:

[0012] A rack, disposed on a side wall of the housing;

[0013] A rotating shaft, wherein a gear matched with the rack is arranged on the circumferential side of the main body of the rotating shaft;

[0014] A connecting rod connecting the rotating shaft and the cover body;

[0015] When the cover body is flipped in the direction of exposing the plug port, the shaft moves along the rack from the first position to the second position, driving the cover body to move away from the shell. When the cover body is flipped in the direction of covering the plug port, the shaft rotates along the rack from the second position to the first position, driving the cover body to move toward the shell.

[0016] Optionally, a guide groove is provided on the side wall;

[0017] A height difference matching the depth of the guide groove is formed between the main body of the rotating shaft and the gear, and the main body of the rotating shaft is accommodated in the guide groove.

[0018] Optionally, a limit platform protrudes from an edge of the side wall close to the plug-in port into the shell, and the limit platform and the rack clamp the rotating shaft.

[0019] Optionally, the rotating mechanism includes two racks with teeth arranged opposite to each other on a side wall, and the two racks with teeth arranged opposite to each other are respectively meshed with gears on the circumferential side of the rotating shaft.

[0020] Optionally, an extension direction of the rack is parallel to an open surface of the plug port.

[0021] Optionally, the rack is arranged on the inner side of the side wall;

[0022] The connecting rod comprises:

[0023] A first connecting portion extending from the rotating shaft toward a side away from the top surface of the housing;

[0024] A supporting portion, connected to the first connecting portion and extending in a direction consistent with the top surface;

[0025] The second connecting portion extends from the supporting portion to a side close to the top surface and is connected to the cover body.

[0026] Optionally, a rounded corner is formed at a position where the side wall meets the top surface of the shell;

[0027] A shielding portion matching the rounded corner portion is arranged on one side of the cover body close to the shell.

[0028] Optionally, a retraction opening extending away from the shell is provided on a side of the cover body close to the shell;

[0029] The cover body is also provided with a flexible sealing strip covering the retraction opening.

[0030] Optionally, the optical fiber port includes at least one optical fiber access port and at least two optical fiber output ports, wherein the number of the optical fiber access ports is greater than the number of the optical fiber output ports.

[0031] According to a second aspect of an embodiment of this specification, an optical network system is provided, including:

[0032] ONU;

[0033] OLT; and

[0034] The spectrometer as described in any one of the above items;

[0035] The optical fiber of the ONU and the optical fiber of the OLT are respectively connected to the optical fiber ports of the optical splitter.

[0036] The technical solutions provided by the embodiments of this specification may have the following beneficial effects:

[0037] In the embodiments of the present specification, in the above-mentioned splitter, the rotating shaft in the rotating mechanism can be rotated and moved along the extension direction of the rack, so that when the cover body is flipped up relative to the shell, it moves in the direction away from the top surface of the shell, exposing the plug-in interface for the staff to plug the optical fiber into the optical fiber port of the splitter element, and when the cover body is flipped down toward the shell, the plug-in interface can be shielded to avoid accidental touching of the optical fiber and prevent dust from entering the interior of the splitter. The operation of exposing and shielding the plug-in interface between the cover body and the shell is more convenient, thereby improving the efficiency of optical fiber plugging of the splitter.

[0038] It is to be understood that the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the present specification. BRIEF DESCRIPTION OF THE DRAWINGS

[0039] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the specification and, together with the description, serve to explain the principles of the specification.

[0040] Figure 1 is a schematic diagram of the structure of a spectrometer involved in the present application, wherein: Figure 1 (A) is a schematic diagram of the cover body flipped down to cover the plug interface. Figure 1 Middle (B) is a schematic diagram showing the cover body being flipped up to reveal the plug interface;

[0041] Figure 2This is a bottom view of a spectrometer involved in the embodiment of the present application. In fact, Figure 2 (A) is a schematic diagram showing that the rotating mechanism is arranged inside the housing. Figure 2 Middle (B) is a schematic diagram showing that the rotating mechanism is arranged outside the housing;

[0042] Figure 3 is a schematic diagram of the oblique rear view of a housing of a spectrometer involved in an embodiment of the present application;

[0043] Figure 4 is a bottom view of a spectrometer according to an embodiment of the present application, wherein a gear of a rotating shaft is clamped by two racks;

[0044] Figure 5 is a structural schematic diagram of a cover body of a spectrometer involved in an embodiment of the present application;

[0045] Figure 6 is a schematic structural diagram of a spectrometer involved in an embodiment of the present application, wherein a rounded corner portion is provided on the housing, and a shielding portion is provided on the cover;

[0046] Figure 7 is a structural schematic diagram of a spectrometer involved in an embodiment of the present application, wherein a retracting portion and a flexible sealing strip are provided on the cover;

[0047] Figure 8 It is a structural diagram of an optical network system involved in this application. DETAILED DESCRIPTION

[0048] Exemplary embodiments will be described in detail herein, examples of which are shown in the accompanying drawings. When the following description refers to the drawings, unless otherwise indicated, the same numbers in different drawings represent the same or similar elements. The implementations described in the following exemplary embodiments do not represent all implementations consistent with this specification. Instead, they are merely examples of devices and methods consistent with some aspects of this specification as detailed in the appended claims.

[0049] The terms used in this specification are for the purpose of describing specific embodiments only and are not intended to limit this specification. The singular forms "a", "the" and "the" used in this specification and the appended claims are also intended to include plural forms unless the context clearly indicates otherwise. It should also be understood that the term "and / or" used herein refers to and includes any or all possible combinations of one or more associated listed items.

[0050] It should be understood that although the terms first, second, third, etc. may be used in this specification to describe various information, this information should not be limited to these terms. These terms are only used to distinguish the same type of information from each other. For example, without departing from the scope of this specification, the first information may also be referred to as the second information, and similarly, the second information may also be referred to as the first information. Depending on the context, the word "if" as used herein may be interpreted as "at the time of" or "when" or "in response to determining".

[0051] The present application provides a spectrometer 100, such as Figure 1 As shown, including:

[0052] The housing 1 may be formed by injection molding, and includes a plurality of wall surfaces, which may be divided into a side wall 10, a top surface 11, and a bottom wall 12. A plug-in port 13 is formed on the housing 1, which means that one side of the housing 1 does not have a side wall 10, and an externally exposed plug-in port 13 is formed. According to actual needs, the plug-in port 13 may be formed on at most two sides, which are two sides of the housing 1 where the object is set;

[0053] A light splitting element (not shown) is disposed in the housing 1, and an optical fiber port of the light splitting element is exposed through the plug interface 13. The light splitting element can provide an optical fiber access port for receiving an input optical signal of the ONU, and can provide a plurality of optical fiber output ports for outputting optical signals to the OLT;

[0054] The cover body 2 is matched with the plug port 13 and is provided with a through hole 20 corresponding to the optical fiber port, wherein the side of the cover body 2 is rectangular and has a nearly L-shaped longitudinal cross section, and matching with the plug port 13 means that the size of the plug port 13 in the horizontal direction X is consistent with the storage of the cover body 2 in the horizontal direction X, so that the cover body 2 can reliably cover the plug port 13;

[0055] Wherein, the optical splitter 100 further includes a rotating mechanism 3;

[0056] The rotating mechanism 3 comprises:

[0057] The rack 30 is arranged on the side wall 10 of the housing 1. According to different actual needs, the rack 30 can be arranged on the inner side of the side wall 10 or on the outer layer of the side wall according to needs, without limitation. The arrangement direction of the rack 30 can be substantially parallel to the horizontal direction X, or can have a small angle with the horizontal direction X. The angle can be set to be greater than 60°, that is, try to be parallel to the horizontal direction X;

[0058] The rotating shaft 31, a gear 31B matched with the rack 30 is arranged on the circumferential side of the main body 31A of the rotating shaft 31, and the gear 31B can be set as an incomplete gear or a complete gear according to actual needs. During the rotation process, the rotating shaft 31 can move along the extension direction of the rack 30 according to the cooperation between the gear 31B arranged on the circumferential side and the rack 30;

[0059] A connecting rod 32 connects the rotating shaft 31 and the cover body 2. When the rotating shaft 31 rotates and moves, the cover body 2 can be driven to rotate and move through the connecting rod 32.

[0060] When the cover body 2 is flipped in the direction of exposing the plug port 13, the shaft 31 moves along the rack 30 from the first position P1 to the second position P2, driving the cover body 2 to move away from the shell 1. When the cover body 2 is flipped in the direction of covering the plug port 13, the shaft 31 rotates along the rack 30 from the second position P2 to the first position P1, driving the cover body 2 to move toward the shell 1.

[0061] like Figure 1 As shown in (A), after the optical splitter 100 is mounted on the wall, the cover 2 needs to be rotated to a position that shields the plug interface 13. When the connecting rod 32 of the rotating cover 2 drives the rotating shaft 31 to rotate, the gear 31B of the rotating shaft 31 moves with the rack 30 from the second position P2 to the first position P1. When the cover 2 shields the plug interface 13, the rotating shaft 31 reaches the first position P1.

[0062] like Figure 1 As shown in (B), when the staff needs to insert the optical fiber into the optical fiber port of the light splitting element, the cover body 2 needs to be turned over. When the shaft 31 rotates driven by the connecting rod 32, the gear 31B of the shaft 31 moves with the rack 30 from the first position P1 to the second position P2. When the cover body 2 exposes the plug-in port 13, the shaft 31 reaches the second position P2. The cover body 2 exposing the plug-in port 13 can mean that the cover body 2 rotates close to 90° or more than 90°, so that the staff can plug the optical fiber more easily.

[0063] Since the shaft 31 can move between the first position P1 and the second position P2 by the cooperation between the gear 31B and the rack 30 during the rotation of the cover 2, the cover 2 can move away from or close to the housing 1, so that the splitter 100 can have higher efficiency in the process of plugging in and maintaining optical fibers.

[0064] Furthermore, when the cover body 2 is flipped up, it can be away from the shell body 1, avoiding interference between the edge and the shell body 1 during the process of the cover body 2 being flipped up; when the cover body 2 is flipped down, it can be close to the shell body 1, thereby improving the tightness of the fit between the cover body 2 and the shell body 1, improving the overall dustproof performance of the splitter 100, and avoiding the problem of optical fiber falling off caused by collision.

[0065] Optional, such as Figure 2 As shown, a guide groove 14 is provided on the side wall 10. According to the different positions of the rack 30 and the rotating shaft 31, the guide groove 14 can be provided inside the housing 1 or outside the housing 1. Figure 2 Taking (A) as an example, since the rack 30 and the rotating shaft 31 are arranged inside the housing 1, the guide groove 14 is also arranged inside the housing 1. Figure 2 Taking (B) as an example, since the rack 30 and the rotating shaft 31 are arranged outside the housing 1, the guide groove 14 is also arranged outside the housing 1, which can be arranged according to actual needs without limitation;

[0066] A height difference matching the depth of the guide groove 14 is formed between the main body 31A of the shaft 31 and the gear 31B, that is, the main body 31A of the shaft 31 is accommodated in the guide groove 14. That is, the height difference enables the main body 31A of the shaft 31 to be inserted into the guide groove 14, and the guide groove 14 can better limit the movement trajectory of the shaft 31, and the guide groove 14 can also have a limit function for the movement of the shaft 31, that is, the guide groove 14 is Figure 2 When the left and right edges abut against the main body 31A, further movement of the main body 31A is restricted. The first position P1 and the second position P2 are located at the left and right edges of the guide groove 14 , further improving the operational reliability of the spectrometer 100 .

[0067] Optional, such as Figure 1 , 3 As shown, a limiting platform 15 protrudes from the edge of the side wall 10 close to the plug-in port 13 into the housing 1 , and the limiting platform 15 and the rack 30 clamp the rotating shaft 31 .

[0068] A limiting platform 15 may also be formed on the housing 1, and the limiting platform 15 is formed by protruding inwardly from the edge of the plug-in port 13. The limiting platform 15 can be structurally divided into a limiting portion 15A and a sealing portion 15B, wherein the limiting portion 15A is located inside the housing 1, and the sealing portion 15B is formed by extending from a side of the limiting portion 15A close to the plug-in port 13 to the outside of the housing 1, and the sealing portion 15B corresponds to the cover 2, that is, when the cover 2 covers the plug-in port 13, the sealing portion 15B blocks the gap between the housing 1 and the cover 2 on both sides as much as possible, thereby further improving the dustproof performance of the optical splitter 100.

[0069] When the cover body 2 is installed on the shell body 1, the rotating shaft 31 of the rotating mechanism 3 can protrude outward relative to the connecting rod 32, and the connecting rod 32 approaches the limit portion 15A from the inside of the shell body 1, and the rotating shaft 31 is inserted between the rack 30 and the limit platform 15, so that the rack 30 and the limit platform 15 clamp the rotating shaft 31, thereby providing a more reliable connection effect for the shell body 1 and the cover body 2.

[0070] Optional, such as Figure 4 As shown, the rotating mechanism 3 includes two racks 30 with toothed portions 30A disposed opposite to each other on a side wall 10 , and the two racks 30 with toothed portions 30A disposed opposite to each other are respectively meshed with gears 31B on the peripheral side of the rotating shaft 31 .

[0071] In addition to the above-mentioned limiting the rotation shaft by the limiting groove and the limiting platform, the limiting can also be performed by setting racks 30 on both sides. In this case, the gear 31B on the circumference of the rotation shaft 31 can be set as a complete gear, and the racks 30 on both sides limit the movement of the rotation shaft 31 by meshing with the gear 31B, so that the relative rotation and movement between the cover body 2 and the shell 1 have better stability. It should be noted that the rack 30 can also be set outside or inside the shell 1, and other structures such as the connecting rod 32 can also be adaptively adjusted.

[0072] Optional, such as Figure 3 As shown, the extension direction of the rack 30 is parallel to the open surface of the plug port 13 , that is, the horizontal direction X. At this time, the rack 30 can provide the maximum displacement relative to the top surface 11 of the housing 1 when the cover 2 is turned over, thereby better avoiding interference between the cover 2 and the top surface 11 .

[0073] Since the connecting rod 32 also needs to occupy a certain rotation space, interference between the connecting rod 32 and the top surface 11 may also occur when the cover body 2 is flipped and exposed. Figure 1 , 5 As shown, the rack 30 is disposed on the inner side of the side wall 10;

[0074] The connecting rod 32 comprises:

[0075] A first connecting portion 32A extends from the rotating shaft 31 to a side away from the top surface 11 of the housing 1;

[0076] A supporting portion 32B connected to the first connecting portion 32A and extending in a direction consistent with the top surface 11;

[0077] The second connection portion 32C extends from the support portion 32B toward a side close to the top surface 11 and is connected to the cover body 2 .

[0078] The connecting rod 32 is formed into a nearly U-shape by the first connecting portion 32A, the supporting portion 32B and the second connecting portion 32C. When the cover 2 is flipped to expose the plug port 13, the first connecting portion 32A, the second connecting portion 32C and the top surface 11 remain nearly parallel, and the supporting portion 32B is nearly perpendicular to the top surface 11. The U-shaped structure allows the connecting rod 32 to avoid the top surface 11, and the top surface 11 will not interfere with the flipping of the cover 2, further improving the smoothness of the operation of the optical splitter 100.

[0079] Optional, such as Figure 6 As shown, a rounded corner portion 16 is formed at the position where the side wall 10 meets the top surface 11 of the housing 1;

[0080] A shielding portion 21 matching the rounded corner portion 16 is disposed on one side of the cover 2 close to the housing 1 .

[0081] The edge of the rounded corner portion 16 is consistent with the flipping direction of the cover body 2 , and the corresponding shielding portion 21 matches the edge of the rounded corner portion 16 .

[0082] By providing the rounded corner portion 16 and the shielding portion 21 , the collision between the housing 1 and the cover 2 can be further avoided when the cover 2 is turned over, thereby further improving the operation smoothness of the beam splitter 100 .

[0083] Furthermore, a seal with a certain degree of flexibility may be provided at the edge between the housing 1 and the cover 2 , and the dustproof effect of the spectrometer 100 may be further improved through the flexible seal.

[0084] Optional, such as Figure 7 As shown, a retraction opening 22 extending away from the shell 1 is provided on one side of the cover body 2 close to the shell 1;

[0085] The cover body 2 is also provided with a flexible sealing strip 23 covering the retraction opening 22 .

[0086] In order to further avoid collision between the cover 2 and the housing 1, a retraction opening 22 may be provided on the cover 2 so that there is a certain gap between the cover 2 and the housing 1. Figure 7 As shown, it can be seen that in the process of changing from shielding the plug interface 13 to exposing the plug interface 13, when the cover body 2 is flipped over, although a collision occurs between the cover body 2 and the shell 1, the deformation of the flexible seal 23 avoids the problem of being unable to flip up the cover body 2. In addition, in order to prevent dust from entering the interior of the spectrometer 100 through the gap, it is also necessary to cover the edge of the retracted opening 22 with a flexible seal 23. The flexible seal 23 provides a better dustproof effect when the cover body 2 shields the plug interface 13.

[0087] Optionally, the optical fiber port includes at least one optical fiber access port and at least two optical fiber output ports, wherein the number of the optical fiber access ports is greater than the number of the optical fiber output ports.

[0088] Since the function of the optical splitter 100 is to split at least one input optical signal into a plurality of output optical signals, the number of optical fiber access ports and optical fiber output ports can be set based on a preset splitting ratio.

[0089] For example, 1:2 splitting, 1:4 splitting, 2:4 splitting, 2:8 splitting, etc., you can set it according to the actual needs of splitting.

[0090] Correspondingly, the present application also provides an optical network system 200, such as Figure 8 As shown, including:

[0091] ONU300;

[0092] OLT400, the number of ONUs and OLTs can be set according to actual needs without limitation; and

[0093] The optical splitter 100 as described in any one of the above items;

[0094] The optical fiber 301 of the ONU 300 and the optical fiber 401 of the OLT 400 are respectively connected to the optical fiber ports of the optical splitter 100 .

[0095] In the embodiments of the present specification, in the above-mentioned splitter, the rotating shaft in the rotating mechanism can be rotated and moved along the extension direction of the rack, so that when the cover body is flipped up relative to the shell, it moves in the direction away from the top surface of the shell, exposing the plug-in interface for the staff to plug the optical fiber into the optical fiber port of the splitter element, and when the cover body is flipped down toward the shell, the plug-in interface can be shielded to avoid accidental touching of the optical fiber and prevent dust from entering the interior of the splitter. The operation of exposing and shielding the plug-in interface between the cover body and the shell is more convenient, thereby improving the efficiency of optical fiber plugging of the splitter.

[0096] Those skilled in the art will readily appreciate other embodiments of the specification after considering the specification and practicing the invention claimed herein. The specification is intended to cover any variations, uses or adaptations of the specification that follow the general principles of the specification and include common knowledge or customary techniques in the art that are not claimed in the specification. The specification and examples are to be considered exemplary only, and the true scope and spirit of the specification are indicated by the following claims.

[0097] It should be understood that the present description is not limited to the precise structures that have been described above and shown in the drawings, and that various modifications and changes may be made without departing from the scope thereof. The scope of the present description is limited only by the appended claims.

[0098] The above description is only a preferred embodiment of this specification and is not intended to limit this specification. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of this specification should be included in the scope of protection of this specification.

Claims

1. A spectrometer, characterized in that: include: A housing having an insertion interface formed thereon; A light splitting element is disposed in the housing, and an optical fiber port of the light splitting element is exposed through the plug port; A cover body, matched with the plug interface, and provided with a through hole corresponding to the optical fiber port; Wherein, the optical splitter further comprises a rotating mechanism; The rotating mechanism comprises: A rack, disposed on a side wall of the housing; A rotating shaft, wherein a gear matched with the rack is arranged on the circumferential side of the main body of the rotating shaft; A connecting rod connecting the rotating shaft and the cover body; When the cover body is flipped in the direction of exposing the plug port, the shaft moves along the rack from the first position to the second position, driving the cover body to move away from the shell. When the cover body is flipped in the direction of covering the plug port, the shaft rotates along the rack from the second position to the first position, driving the cover body to move toward the shell.

2. The optical splitter according to claim 1, characterized in that A guide groove is provided on the side wall; A height difference matching the depth of the guide groove is formed between the main body of the rotating shaft and the gear, and the main body of the rotating shaft is accommodated in the guide groove.

3. The optical splitter according to claim 1, characterized in that: A limiting platform protrudes from the edge of the side wall close to the plug-in port into the shell, and the limiting platform and the rack clamp the rotating shaft.

4. The optical splitter according to claim 1, characterized in that: The rotating mechanism comprises two racks arranged opposite to each other at the toothed parts on one side wall, and the two racks arranged opposite to each other at the toothed parts are respectively meshed with the gears at the peripheral side of the rotating shaft.

5. The optical splitter according to any one of claims 2 to 4, characterized in that: The extending direction of the rack is parallel to the open surface of the plug-in port.

6. The optical splitter according to claim 1, characterized in that: The rack is arranged on the inner side of the side wall; The connecting rod comprises: A first connecting portion extending from the rotating shaft toward a side away from the top surface of the housing; A supporting portion, connected to the first connecting portion and extending in a direction consistent with the top surface; The second connecting portion extends from the supporting portion to a side close to the top surface and is connected to the cover body.

7. The optical splitter according to claim 1, characterized in that: A rounded corner is formed at a position where the side wall meets the top surface of the shell; A shielding portion matching the rounded corner portion is arranged on one side of the cover body close to the shell.

8. The optical splitter according to claim 1, characterized in that: A retraction opening extending away from the shell is provided on one side of the cover body close to the shell; The cover body is also provided with a flexible sealing strip covering the retraction opening.

9. The optical splitter according to claim 1, characterized in that: The optical fiber ports include at least one optical fiber access port and at least two optical fiber output ports, wherein the number of the optical fiber access ports is greater than the number of the optical fiber output ports.

10. An optical network system, characterized in that: include: Optical Network Unit ONU; Optical Line Terminal OLT; as well as, The spectrometer according to any one of claims 1 to 9; The optical fiber of the ONU and the optical fiber of the OLT are respectively connected to the optical fiber ports of the optical splitter.

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