Four-in-one miniaturized mechanical optical switch

Abstract

The utility model relates to an optical switch technology, in particular to a one-to-four miniaturized mechanical optical switch, which comprises a single-fiber collimator, a four-core collimator and a wedge prism group arranged between the four-core collimator and the single-fiber collimator. The wedge angle prism group comprises a first wedge angle prism and a second wedge angle prism which are arranged in parallel; the first wedge angle prism and the second wedge angle prism are adjustably arranged between the four-core collimator and the single-fiber collimator; double relays and double wedge prisms are used, so that the number of channels is doubled; on the basis of a conventional 1 * 2 mechanical optical switch, a small-size relay is selected and the structure is optimized, so that the miniaturization of the product is realized, and therefore, under the condition that the overall size is smaller, the double expansion of the number of channels is realized, and the space occupied by the product is perfectly reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to a kind of optical switch technology, specifically a one-to-four miniaturization mechanical optical switch. BACKGROUND

[0002] With the rapid development of optical communication technology, the wide application of DWDM technology, optical fiber is not only widely used in backbone network, is currently extending to metropolitan area network, access network part, and gradually in-depth FTTH.

[0003] Optical switch can realize optical path self-healing protection, routing selection and other functions in optical communication, overcome the electronic bottleneck of optical-electric-optical conversion, fully embody the characteristics of large capacity, high speed transmission and exchange of optical network. It can be widely used in optical network protection switching system, light source control in optical fiber test, real-time monitoring system of network performance, testing of optical devices, exchange core of OXC equipment, optical add / drop / multiplexing, optical testing, optical sensing system and so on, and gradually becomes the basic element of information exchange in optical network.

[0004] With the use environment restriction, optical switch also needs to be integrated, miniaturized, multi-channel and complex, but the conventional optical switch is still insufficient to break the above use environment restriction. UTILITY MODEL CONTENT

[0005] The utility model aims at providing a one-to-four miniaturization mechanical optical switch to solve the problems in the above background.

[0006] To achieve the above object, the utility model provides the following technical scheme:

[0007] A one-to-four miniaturization mechanical optical switch, comprising a single-fiber collimator, a four-core collimator, and a wedge-angle prism group arranged between the four-core collimator and the single-fiber collimator.

[0008] The wedge-angle prism group comprises a first wedge-angle prism and a second wedge-angle prism arranged in parallel with each other.

[0009] The first wedge-angle prism and the second wedge-angle prism are adjustably arranged between the four-core collimator and the single-fiber collimator.

[0010] The one-to-four miniaturization mechanical optical switch as described above: the first wedge-angle prism and the second wedge-angle prism are both flat on one side and wedge surface on the other side, and the wedge surface angles of the first wedge-angle prism and the second wedge-angle prism are different by one time.

[0011] The one-to-four miniaturization mechanical optical switch as described above: the single-fiber collimator is connected with an optical fiber through a metal bridge, and the four-core collimator is connected with another optical fiber through another metal bridge.

[0012] The single-fiber collimator and the four-core collimator are mounted on the shell and coaxially arranged.

[0013] The one-to-four miniaturized mechanical optical switch as described above: the first wedge-angle prism is mounted on the first extension arm, and the second wedge-angle prism is mounted on the second extension arm.

[0014] The first extension arm and the second extension arm are arranged in parallel and can independently move away from and close to the channel formed between the four-core collimator and the single-fiber collimator.

[0015] The one-to-four miniaturized mechanical optical switch as described above: the first extension arm is connected with the first relay, and the second extension arm is connected with the second relay.

[0016] Compared with the prior art, the one-to-four miniaturized mechanical optical switch has the advantages that: the double relays and the double wedge-angle prisms are used to realize the doubling of the number of channels; on the basis of the conventional 1X2 mechanical optical switch, the small-size relays are selected and the structure is optimized to realize the miniaturization of the product, so that the number of channels is doubled and expanded in the case of smaller overall size, and the product occupies less space. BRIEF DESCRIPTION OF DRAWINGS

[0017] Fig. 1 It is a structural schematic view of the one-to-four miniaturized mechanical optical switch.

[0018] Fig. 2 It is four state diagrams of the optical path in the one-to-four miniaturized mechanical optical switch.

[0019] Fig. 3 It is four principle schematic diagrams of the optical path switching in the one-to-four miniaturized mechanical optical switch.

[0020] In the figure: 101-single-fiber collimator; 102-four-core collimator; 103-first wedge-angle prism; 104-second wedge-angle prism; 105-metal bridge; 1061-first extension arm; 1062-second extension arm; 1071-first relay; 1072-second relay. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all the embodiments.

[0022] Please refer to Figs. 1-3As one embodiment of the utility model, the one-to-four miniaturized mechanical optical switch comprises a single-fiber collimator 101, a four-core collimator 102 and a wedge prism group arranged between the four-core collimator 102 and the single-fiber collimator 101;

[0023] The wedge prism group comprises a first wedge prism 103 and a second wedge prism 104 arranged in parallel, wherein the first wedge prism 103 and the second wedge prism 104 are both flat on one side and wedge surface on the other side, and the wedge surface angles of the first wedge prism 103 and the second wedge prism 104 are different by one time.

[0024] The first wedge prism 103 and the second wedge prism 104 are adjustably arranged between the four-core collimator 102 and the single-fiber collimator 101.

[0025] In this embodiment, the utility model contains four working conditions, which are that the wedge prism group is separated from the channel between the four-core collimator 102 and the single-fiber collimator 101, the second wedge prism 104 is separated from the channel between the four-core collimator 102 and the single-fiber collimator 101, the first wedge prism 103 is separated from the channel between the four-core collimator 102 and the single-fiber collimator 101, and the first wedge prism 103 and the second wedge prism 104 are both in the channel between the four-core collimator 102 and the single-fiber collimator 101.

[0026] Corresponding to the following four working states:

[0027] State A: after the optical signal is input from the COM end of the single-core collimator 101, the first wedge prism 103 and the second wedge prism 104 are not in the optical path, and the optical signal is directly output from the P1 port of the four-core collimator 102.

[0028] State B: after the optical signal is input from the COM end of the single-core collimator 101, the first wedge prism 103 is in the middle of the optical path, the optical signal is refracted after passing through the first wedge prism 103, and is output from the P2 port of the four-core collimator 102.

[0029] State C: after the optical signal is input from the COM end of the single-core collimator 101, the second wedge prism 104 is in the middle of the optical path, the optical signal is refracted after passing through the second wedge prism 104, and is output from the P3 port of the four-core collimator 102.

[0030] State D: after the optical signal is input from the COM end of the single-core collimator 101, the first wedge prism 103 and the second wedge prism 104 are both in the optical path, the optical signal is refracted twice after passing through the wedge prism group, and is output from the P4 port of the four-core collimator 102.

[0031] As a further scheme of the utility model, the single fiber collimator 101 is connected with an optical fiber through a metal bridge 105, and the four-core collimator 102 is connected with another optical fiber through another metal bridge 105.

[0032] The single fiber collimator 101 and the four-core collimator 102 are both mounted on the shell 108, and the single fiber collimator 101 and the four-core collimator 102 are coaxially arranged.

[0033] In this embodiment, the single fiber collimator 101 and the four-core collimator 102 are respectively aligned and coaxially mounted on the shell 108 through the metal bridge 105, thereby increasing the stability of the overall switch device.

[0034] As a further scheme of the utility model, the first wedge angle prism 103 is mounted on the first extension arm 1061, and the second wedge angle prism 104 is mounted on the second extension arm 1062.

[0035] The first extension arm 1061 and the second extension arm 1062 are arranged in parallel, and the first extension arm 1061 and the second extension arm 1062 can both independently move away from or close to the channel formed between the four-core collimator 102 and the single fiber collimator 101.

[0036] In this embodiment, by controlling the respective lifting or lowering of the first extension arm 1061 and the second extension arm 1062, it can be controlled whether the first wedge angle prism 103 and the second wedge angle prism 104 are in the channel; corresponding to four situations respectively, the first extension arm 1061 is lifted while the second extension arm 1062 is also lifted, the first extension arm 1061 is lowered while the second extension arm 1062 is also lowered, the first extension arm 1061 is lifted while the second extension arm 1062 is lowered, and the first extension arm 1061 is lowered while the second extension arm 1062 is lifted.

[0037] As a further scheme of the utility model, the first extension arm 1061 is connected with the first relay 1071, and the second extension arm 1062 is connected with the second relay 1072, and the first relay 1071 and the second relay 1072 are both mounted in the shell 108.

[0038] In this embodiment, when the first relay 1071 and the second relay 1072 are powered off, the first extension arm 1061 and the second extension arm 1062 are both lifted; when the first relay 1071 and the second relay 1072 are powered on, the first extension arm 1061 and the second extension arm 1062 are both lowered; when the first relay 1071 is powered off and the second relay 1072 is powered on, the first extension arm 1061 is lifted while the second extension arm 1062 is lowered; and when the first relay 1071 is powered on and the second relay 1072 is powered off, the first extension arm 1061 is lowered while the second extension arm 1062 is lifted.

[0039] This invention uses double the number of relays and double the number of wedge prisms to double the number of channels. Based on the conventional 1X2 mechanical optical switch, it selects small-sized relays and optimizes the structure to achieve product miniaturization. Thus, it achieves double the number of channels while keeping the overall size smaller, and perfectly reduces the space occupied by the product.

[0040] By switching the relay on and off, light is transmitted to the wedge prisms, causing multiple refractions and altering the optical path, thus enabling channel switching of the optical signal. Structurally, the single-fiber collimator and the four-core collimator are confined within a coaxial-like space by a metal bridge and are bonded to the housing, forming a sealed space. In terms of optical path functionality, the optical signal enters from the COM port of the single-fiber collimator, and then, through the switching control of the relay, the two wedge prisms alternately switch to the optical path, causing the input signal to undergo multiple refractions, thereby changing the optical link. This results in the output optical signal being delivered from four different ports (P1 / P2 / P3 / P4) of the four-core collimator, achieving overall optical path switching. This invention also features a protection switching function, typically used for network fault recovery. When fiber optic cable breaks or other transmission failures occur, an optical switch is used to achieve signal rerouting, switching from the primary route to the backup route to ensure uninterrupted communication.

[0041] The above embodiments are exemplary and not restrictive. Therefore, without departing from the spirit or basic characteristics of this utility model, any technical solutions that can be implemented in other specific forms are included in this utility model.

Claims

1. A one-to-four miniaturized mechanical optical switch, characterized in that, A single fiber collimator (101), a four-core collimator (102), and a wedge prism group arranged between the four-core collimator (102) and the single fiber collimator (101); The wedge prism group comprises a first wedge prism (103) and a second wedge prism (104) arranged in parallel with each other; The first wedge prism (103) and the second wedge prism (104) are adjustably arranged between the four-core collimator (102) and the single fiber collimator (101).

2. A one-to-four miniaturized mechanical optical switch according to claim 1, characterized in that, The first wedge prism (103) and the second wedge prism (104) are both flat on one side and wedge on the other side, and the wedge angle of the first wedge prism (103) and the second wedge prism (104) is different by one time.

3. A one-to-four miniaturized mechanical optical switch according to claim 1, characterized in that, The single fiber collimator (101) is connected to an optical fiber through a metal bridge (105), and the four-core collimator (102) is connected to another optical fiber through another metal bridge (105); The single fiber collimator (101) and the four-core collimator (102) are both mounted on a housing (108), and the single fiber collimator (101) and the four-core collimator (102) are coaxially arranged.

4. A one-to-four miniaturized mechanical optical switch according to claim 3, characterized in that, The first wedge prism (103) is mounted on a first extension arm (1061), and the second wedge prism (104) is mounted on a second extension arm (1062); The first extension arm (1061) and the second extension arm (1062) are arranged in parallel, and the first extension arm (1061) and the second extension arm (1062) can independently move away from and close to the channel formed between the four-core collimator (102) and the single fiber collimator (101).

5. A one-to-four miniaturized mechanical optical switch according to claim 4, characterized in that, The first extension arm (1061) is connected to a first relay (1071), and the second extension arm (1062) is connected to a second relay (1072), and the first relay (1071) and the second relay (1072) are both mounted in the housing (108).

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