Pump source testing device and system

Abstract

The utility model relates to the technical field of optical communication, in particular to a pump source testing device and system. Comprising a controller, a laser diode, a first relay and a second relay, each of the first relay and the second relay comprises two low-level output ends and two high-level output ends, the control ends of the first relay and the second relay are connected with the controller, the first relay is connected with the output end of the laser diode, and the second relay is connected with the output end of the laser diode. Two high-level output ends of the first relay are connected with the second relay; two low-level output ends of the first relay and the second relay and two high-level output ends of the second relay are connected with the pumping source; in the embodiment of the invention, the first relay and the second relay are controlled by the controller to realize various electric connection designs so as to meet the test requirements of various pumping sources, the DC test can be carried out on different pumping sources only through a single pumping source test device, the test cost is effectively reduced, and the practicability of the pumping source test device is higher.

Description

Technical Field

[0001] The utility model relates to the technical field of optical communication, in particular to a pump source testing device and system. Background Art

[0002] At present, the development trend of communication optical network is advancing towards the user end. Not only backbone network has popularized optical communication, but metropolitan area network and access network have also increasingly adopted optical communication. As we all know, in the process of transmission, the loss of optical signal will increase with the increase of distance, so the relay amplification of optical signal is indispensable. At present, the most widely used is erbium-doped fiber amplifier (EDFA), and the pump source is one of the most important components of EDFA, so the performance test of the pump source is also particularly important. Currently, the common ones on the market are 14PIN single-core pump source, 14PIN dual-core pump source, 10PIN single-core pump source and 10PIN dual-core pump source. Normally, it is necessary to build multiple sets of different test systems to perform DC tests on different pump sources, and the test cost is relatively high.

[0003] Therefore, it is very important for those skilled in the art to design a pump source testing device and system that is applicable to a variety of pump sources and has simple testing and low cost. Utility Model Content

[0004] The technical problem to be solved by the embodiments of the utility model is to provide a pump source testing device and system that can be applied to a variety of pump sources and has simple testing and low cost, so as to solve the problem in the prior art that four different testing systems need to be built to perform DC testing on different pump sources respectively, which is costly.

[0005] The utility model discloses a pump source testing device, which is used for testing a pump source. The scheme of the device is that it comprises: a controller, a laser diode, a first relay and a second relay, wherein the first relay and the second relay both comprise two low-level output ends and two high-level output ends, the control ends of the first relay and the second relay are both connected to the controller, the input end of the first relay is connected to the output end of the laser diode, the two high-level output ends of the first relay are both connected to the input end of the second relay, and the two low-level output ends of the first relay, the two low-level output ends of the second relay and the two high-level output ends of the second relay are all connected to the pump source.

[0006] Optionally, the pump source includes a 10PIN single-core pump source, a 14PIN single-core pump source, a 10PIN dual-core pump source, and a 14PIN dual-core pump source.

[0007] Optionally, the 10PIN single-core pump source is respectively connected to one low-level output end of the first relay and one low-level output end of the second relay, or is respectively connected to one low-level output end of the first relay and one high-level output end of the second relay.

[0008] Optionally, the 14PIN single-core pump source is respectively connected to one low-level output end of the first relay and one low-level output end of the second relay, or is respectively connected to one low-level output end of the first relay and one high-level output end of the second relay.

[0009] Optionally, one path of the 10PIN dual core is respectively connected to one low-level output terminal of the first relay and one low-level output terminal of the second relay, or is respectively connected to one low-level output terminal of the first relay and one high-level output terminal of the second relay; the other path of the 10PIN dual core is respectively connected to one high-level output terminal of the first relay and one high-level output terminal of the second relay.

[0010] Optionally, one path of the 14PIN dual core is respectively connected to one low-level output terminal of the first relay and one low-level output terminal of the second relay, or is respectively connected to one low-level output terminal of the first relay and one high-level output terminal of the second relay; the other path of the 14PIN dual core is respectively connected to one high-level path of the first relay and one low-level path of the second relay.

[0011] In order to solve the problems existing in the prior art, the utility model also provides a pump source testing system, which includes the pump source testing device as described above, and also includes a host and a pump source, the host is connected to the input end of the controller, and the pump source is connected to the output end of the pump source testing device.

[0012] Optionally, a laser driver is further included, wherein an input end of the laser driver is connected to the host, and an output end of the laser driver is connected to the pump source.

[0013] Optionally, it also includes an optical power meter and a fiber optic detector, the output end of the optical power meter is connected to the host, the input end of the optical power meter is connected to the output end of the fiber optic detector, and the input end of the fiber optic detector is connected to the pump source.

[0014] Optionally, the optical fiber detector is a spherical detector.

[0015] Compared with the prior art, the beneficial effect of the pump source testing device provided by the embodiment of the utility model is: by designing a pump source testing device, including a controller, a laser diode, a first relay and a second relay, the first relay and the second relay each include two low-level output terminals 0 and two high-level output terminals 1, and the controller can control the first relay and the second relay to realize the electrical connection design of (0,0), (0,1), (1,0) and (1,1) to meet the testing requirements of various pump sources, and only a single pump source testing device can be used to perform DC testing on different pump sources, which effectively reduces the testing cost and makes the pump source testing device more practical. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The technical solution of the utility model will be further described in detail below with reference to the accompanying drawings and embodiments, in which:

[0017] Figure 1 It is a structural block diagram of a pump source testing device provided by an embodiment of the utility model;

[0018] Figure 2 It is a system block diagram of a pump source testing system provided by an embodiment of the utility model. DETAILED DESCRIPTION

[0019] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. Now, in conjunction with the accompanying drawings, a preferred embodiment of the present utility model is described in detail.

[0020] like Figure 1 As shown, the utility model provides a specific embodiment of a pump source testing device.

[0021] A pump source test device for testing a pump source, referring to Figure 1 The pump source test device includes a controller 1, a laser diode 2, a first relay 3 and a second relay 4, and the first relay 3 and the second relay 4 each include two low-level output terminals 0 and two high-level output terminals 1;

[0022] Among them, reference Figure 1 , the control ends of the first relay 3 and the second relay 4 are connected to the controller 1, the input end of the first relay 3 is connected to the output end of the laser diode 2, the two high-level output ends 1 of the first relay 3 are connected to the input end of the second relay 4, and the two low-level output ends 0 of the first relay 3, the two low-level output ends 0 of the second relay 4 and the two high-level output ends 1 of the second relay 4 are connected to the pump source.

[0023] Specifically, refer to Figure 1The first relay 3 is a 4-way relay, which includes two low-level output terminals 0 and two high-level output terminals 1. The second relay 4 is also a 4-way relay, which also includes two low-level output terminals 0 and two high-level output terminals 1. The two high-level output terminals 1 of the first relay 3 are connected to the second relay 4. The two low-level output terminals 0 of the first relay 3, the two low-level output terminals 0 of the second relay 4, and the two high-level output terminals 1 of the second relay 4 are all connected to the pump source for connecting different pump sources, thereby realizing the test of different pump sources.

[0024] The controller 1 is a programmable controller 1, which is used to control the first relay 3 and the second relay 4 respectively, so as to complete 4 sets of electrical connection designs, so as to achieve the purpose of using a pump source test device to test different pump sources. The controller 1 can specifically adopt CP1E-N20DT-D, and the two low-level output terminals 0 of the first relay 3 and the two low-level output terminals 0 of the second relay 4 are both defined as 0, and the two high-level output terminals 1 of the first relay 3 and the two high-level output terminals 1 of the second relay 4 are both defined as 1. The controller 1 can control the first relay 3 and the second relay 4 to complete the electrical connection designs of (0,0), (0,1), (1,0) and (1,1) to control different pump sources for testing respectively.

[0025] At present, the development trend of communication optical network is advancing towards the user end. Not only has the backbone network popularized optical communication, but the metropolitan area network and access network have also increasingly adopted optical communication. At the same time, fiber to the home (FTTH) is also being vigorously promoted. In the process of signal transmission, as the distance increases, the loss will also increase, so signal relay amplification is indispensable. At present, the most widely used is the erbium-doped fiber amplifier. As one of the most important components of the erbium-doped fiber amplifier, the pump source is particularly important for testing. There are many types of pump sources on the market. Normally, different pump sources need to build different test systems to perform DC tests separately, which is costly and cumbersome to operate.

[0026] In this embodiment, a pump source test device is designed, including a controller, a laser diode, a first relay and a second relay. The first relay and the second relay each include two low-level output terminals 0 and two high-level output terminals 1. The controller can control the first relay and the second relay to realize the electrical connection design of (0,0), (0,1), (1,0) and (1,1) to meet the test requirements of various pump sources. Different pump sources can be DC tested only by a single pump source test device, which effectively reduces the test cost and makes the pump source test device more practical.

[0027] In one embodiment, reference Figure 1The pump sources include 10PIN single-core pump source, 14PIN single-core pump source, 10PIN dual-core pump source and 14PIN dual-core pump source.

[0028] Among them, the 14PIN single-core and 10PIN single-core pump sources adopt single-fiber output in product structure design, and the electrical connection design adopts separate LD anode and cathode output electrical connection method; the 14PIN dual-core pump source adopts dual-fiber output in product structure design, and the electrical connection design adopts two independent LD anode and cathode separate output electrical connection method; the 10PIN dual-core pump source adopts dual-fiber output in product structure design, and the electrical connection design adopts LD1&LD2 common anode design and cathode separate output electrical connection method, which can achieve dual-channel LD laser output in a 10pin small size butterfly shell.

[0029] In one embodiment, reference Figure 1 , the 10PIN single-core pump source is respectively connected to a low-level output terminal 0 of the first relay 3 and a low-level output terminal 0 of the second relay 4, or is respectively connected to a low-level output terminal 0 of the first relay 3 and a high-level output terminal 1 of the second relay 4; that is, the 10PIN single-core pump source adopts an electrical connection design of (0, 0) or a circuit design of (0, 1).

[0030] In one embodiment, reference Figure 1 , the 14PIN single-core pump source is respectively connected to a low-level output terminal 0 of the first relay 3 and a low-level output terminal 0 of the second relay 4, or is respectively connected to a low-level output terminal 0 of the first relay 3 and a high-level output terminal 1 of the second relay 4; that is, the 14PIN single-core pump source adopts an electrical connection design of (0, 0) or a circuit design of (0, 1).

[0031] In one embodiment, reference Figure 1 , one path of the 10PIN dual core is respectively connected to a low level output terminal 0 of the first relay 3 and a low level output terminal 0 of the second relay 4, or respectively connected to a low level output terminal 0 of the first relay 3 and a high level output terminal 1 of the second relay 4; the other path of the 10PIN dual core is respectively connected to a high level path of the first relay 3 and a high level path of the second relay 4; that is, the LD1 of the 10PIN dual core adopts a (0, 0) electrical connection design, or a (0, 1) circuit design; the LD2 of the 10PIN dual core adopts a (1, 1) electrical connection design.

[0032] In one embodiment, reference Figure 1, one path of the 14PIN dual core is respectively connected to a low level output terminal 0 of the first relay 3 and a low level output terminal 0 of the second relay 4, or respectively connected to a low level output terminal 0 of the first relay 3 and a high level output terminal 1 of the second relay 4; the other path of the 14PIN dual core is respectively connected to a high level of the first relay 3 and a low level of the second relay 4; that is, the LD1 of the 14PIN dual core adopts a (0, 0) electrical connection design, or a (0, 1) circuit design; the LD2 of the 14PIN dual core adopts a (1, 0) electrical connection design.

[0033] like Figure 2 As shown, the utility model also provides a specific embodiment of a pump source testing system.

[0034] A pump source test system, reference Figure 2 The pump source test system includes the pump source test device 10 as described above, and also includes a host 20 and a pump source 30 . The host 20 is connected to the input end of the controller 1 , and the pump source 30 is connected to the output end of the pump source test device 10 .

[0035] Specifically, refer to Figure 2 The host 20 is a computer PC terminal, the pump source 30 is a 10PIN single-core pump source, a 14PIN single-core pump source, a 10PIN dual-core pump source or a 14PIN dual-core pump source, the host 20 is used for the whole machine logic control, and the controller 1 is used to receive the control signal of the host 20 to control the first relay 3 and the second relay 4 to output a low level or a high level.

[0036] Among them, when the pump source 30 is a 10PIN single-core pump source, the 10PIN single-core pump source is respectively connected to a low-level output terminal 0 of the first relay 3 and a low-level output terminal 0 of the second relay 4, or is respectively connected to a low-level output terminal 0 of the first relay 3 and a high-level output terminal 1 of the second relay 4.

[0037] Further, when the pump source 30 is a 14PIN single-core pump source, the 14PIN single-core pump source is respectively connected to a low-level output terminal 0 of the first relay 3 and a low-level output terminal 0 of the second relay 4, or is respectively connected to a low-level output terminal 0 of the first relay 3 and a high-level output terminal 1 of the second relay 4; that is, the 14PIN single-core pump source adopts an electrical connection design of (0, 0) or a circuit design of (0, 1).

[0038] Further, when the pump source 30 is a 10PIN dual-core pump source, one path of the 10PIN dual-core is respectively connected to a low-level output terminal 0 of the first relay 3 and a low-level output terminal 0 of the second relay 4, or is respectively connected to a low-level output terminal 0 of the first relay 3 and a high-level output terminal 1 of the second relay 4; the other path of the 10PIN dual-core is respectively connected to a high-level path of the first relay 3 and a high-level path of the second relay 4.

[0039] Further, when the pump source 30 is a 14PIN dual-core pump source, one path of the 14PIN dual-core is respectively connected to a low-level output terminal 0 of the first relay 3 and a low-level output terminal 0 of the second relay 4, or respectively connected to a low-level output terminal 0 of the first relay 3 and a high-level output terminal 1 of the second relay 4; the other path of the 14PIN dual-core is respectively connected to a high-level path of the first relay 3 and a low-level path of the second relay 4; that is, LD1 of the 14PIN dual-core adopts an electrical connection design of (0, 0).

[0040] In one embodiment, reference Figure 2 The pump source test system further includes a laser driver 40 , and an output end of the laser driver 40 is connected to the pump source 30 .

[0041] Specifically, refer to Figure 2 The laser driver 40 is used to control and pump the source 30. The pump source 30 requires specific current and voltage to work properly. The pump source 30 also requires a stable driving signal to produce the expected laser output. The laser driver 40 can provide precise current control and stable voltage control for the pump source 30 to ensure that the pump source 30 works within a safe range.

[0042] Furthermore, the laser driver 40 also has a modulation function. The laser driver 40 can adjust the intensity or frequency of the laser output according to actual needs. The laser driver 40 also has overload protection and overheat protection to ensure that the pump source 30 will not be damaged under abnormal circumstances.

[0043] In one embodiment, reference Figure 2 The pump source test system also includes an optical power meter 50 and a fiber optic detector 60. The output end of the optical power meter 50 is connected to the host 20, the input end of the optical power meter 50 is connected to the output end of the fiber optic detector 60, and the input end of the fiber optic detector 60 is connected to the pump source.

[0044] Specifically, refer to Figure 2The optical power meter 50 is used to monitor the power level of the optical signal passing through the optical fiber amplifier in real time to ensure the proper amplification and transmission of the optical signal in the system. By measuring the power of the input optical signal and the power of the output optical signal, the gain range of the erbium-doped fiber amplifier can be adjusted to ensure that the output signal is within the required power range. The optical power meter 50 can also identify system faults and perform optical communication diagnosis by monitoring whether the power level of the optical signal meets expectations.

[0045] The optical fiber detector 60 is used to convert the optical signal into an electrical signal, thereby realizing the detection and measurement of the optical signal.

[0046] In this embodiment, the fiber optic detector 60 is a spherical detector, and the detection surface of the spherical detector is spherical rather than a traditional planar shape; this design can provide some advantages and characteristics, and is suitable for specific application scenarios; for example: uniform response, reduced optical distortion, focusing ability, etc. The design of the spherical detector can provide a more uniform response characteristic, so that it has a more consistent sensitivity when receiving light signals from different directions; the spherical shape can reduce optical distortion and help improve the precision and accuracy of the detector; due to the characteristics of the spherical shape, the spherical detector can have a certain focusing ability and can more effectively collect and focus the incident light signal.

[0047] It should be understood that the above embodiments are only used to illustrate the technical solutions of the present utility model rather than to limit it. For those skilled in the art, the technical solutions described in the above embodiments can be modified, or some of the technical features therein can be replaced by equivalents; and all these modifications and replacements should fall within the scope of protection of the claims attached to the present utility model.

Claims

1. A pump source testing device for testing a pump source, characterized in that: include: A controller, a laser diode, a first relay and a second relay, wherein the first relay and the second relay each include two low-level output ends and two high-level output ends, the control ends of the first relay and the second relay are both connected to the controller, the input end of the first relay is connected to the output end of the laser diode, the two high-level output ends of the first relay are both connected to the input end of the second relay, and the two low-level output ends of the first relay, the two low-level output ends of the second relay and the two high-level output ends of the second relay are all connected to the pump source.

2. The pump source testing device according to claim 1, characterized in that: The pump sources include a 10PIN single-core pump source, a 14PIN single-core pump source, a 10PIN dual-core pump source and a 14PIN dual-core pump source.

3. The pump source testing device according to claim 2, characterized in that: The 10PIN single-core pump source is respectively connected to one low-level output end of the first relay and one low-level output end of the second relay, or is respectively connected to one low-level output end of the first relay and one high-level output end of the second relay.

4. The pump source testing device according to claim 2, characterized in that: The 14PIN single-core pump source is respectively connected to one low-level output end of the first relay and one low-level output end of the second relay, or is respectively connected to one low-level output end of the first relay and one high-level output end of the second relay.

5. The pump source testing device according to claim 2, characterized in that: One path of the 10PIN dual core is respectively connected to one low-level output end of the first relay and one low-level output end of the second relay, or respectively connected to one low-level output end of the first relay and one high-level output end of the second relay; the other path of the 10PIN dual core is respectively connected to one high-level path of the first relay and one high-level path of the second relay.

6. The pump source testing device according to claim 2, characterized in that: One path of the 14PIN dual core is respectively connected to one low-level output end of the first relay and one low-level output end of the second relay, or respectively connected to one low-level output end of the first relay and one high-level output end of the second relay; the other path of the 14PIN dual core is respectively connected to one high-level path of the first relay and one low-level path of the second relay.

7. A pump source testing system, characterized in that: It comprises the pump source testing device as described in any one of claims 1 to 6, and also comprises a host and a pump source, wherein the host is connected to the input end of the controller, and the pump source is connected to the output end of the pump source testing device.

8. The pump source testing system according to claim 7, characterized in that: It also includes a laser driver, wherein the input end of the laser driver is connected to the host, and the output end of the laser driver is connected to the pump source.

9. The pump source testing system according to claim 7, characterized in that: It also includes an optical power meter and an optical fiber detector, wherein the output end of the optical power meter is connected to the host, the input end of the optical power meter is connected to the output end of the optical fiber detector, and the input end of the optical fiber detector is connected to the pump source.

10. The pump source testing system according to claim 9, characterized in that: The optical fiber detector is a spherical detector.

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