Butterfly laser testing device and testing tool

Abstract

The utility model discloses a butterfly-shaped laser testing device and a testing tool. The butterfly-shaped laser testing device comprises a base, a circuit board and a fixing assembly. The circuit board is arranged on the base; the circuit board is provided with a gap and a plurality of output pins arranged on two opposite sides of the gap, the gap is used for placing a to-be-tested butterfly laser, and each output pin is used for being connected with a power supply pin of the to-be-tested butterfly laser so as to supply power to the butterfly laser and load signals; the fixing assembly is connected to the base, and the fixing assembly is used for fixing the to-be-tested butterfly-shaped laser on the base. The test tool comprises the butterfly laser test device, a power supply and a radio frequency signal source. Compared with the prior art, the clamp can be used for clamping and fixing the butterfly-shaped laser and carrying out related radio frequency tests on the butterfly-shaped laser.

Description

Technical Field

[0001] The utility model relates to the technical field of laser equipment, in particular to a butterfly laser testing device and a testing tool. Background Art

[0002] The butterfly laser is a laser with a special packaging form. It is named because its packaging structure is similar to the shape of a butterfly, that is, the laser chip and the pigtail are packaged together through precise laser welding technology to form a bilaterally symmetrical and compact component design. This packaging form is conducive to simplifying system integration, reducing connection losses, and improving the reliability and stability of the overall system. It plays an important role in modern communication networks, fiber optic sensing systems, scientific research, industrial detection and other fields.

[0003] Currently, there are few fixtures on the market for testing the RF performance of butterfly lasers. Generally, butterfly clips are used. However, butterfly clips can only be used to power the laser and cannot load signals for RF testing. Utility Model Content

[0004] The main purpose of the utility model is to provide a butterfly laser testing device and a testing tool, which are intended to perform related radio frequency tests in addition to powering the butterfly laser.

[0005] To achieve the above purpose, the butterfly laser test device proposed by the utility model comprises:

[0006] Base;

[0007] A circuit board is arranged on the base; the circuit board is provided with a notch and a plurality of output pins arranged on opposite sides of the notch, the notch is used for placing the butterfly laser to be tested, and each of the output pins is used to connect with a power supply pin of the butterfly laser to be tested, so as to supply power to the butterfly laser and load a signal;

[0008] A fixing component is connected to the base, and the fixing component is used to fix the butterfly laser to be tested on the base.

[0009] In one embodiment, the fixing assembly comprises:

[0010] A pressing block, used for being placed on the butterfly laser to be tested;

[0011] The clamping mechanism is in contact with the pressing block, and the butterfly laser to be tested is pressed down and fixed on the base through the pressing block.

[0012] In one embodiment, the clamping mechanism is a toggle clamp.

[0013] In one embodiment, the toggle clamp comprises:

[0014] A fixing seat, fixedly connected to the base;

[0015] The clamp arm comprises a first end and a second end which are arranged opposite to each other. The first end of the clamp arm is pivotally connected to the fixing seat, and the second end of the clamp arm is provided with a sliding part.

[0016] In one embodiment, the toggle clamp further comprises:

[0017] A positioning column is slidably connected to the sliding part; the positioning column is used to abut against the pressing block to press down the butterfly laser and fix it on the base.

[0018] In one embodiment, the butterfly laser testing device further comprises:

[0019] An adjustable positioning member, through which the circuit board is detachably fixed to the base.

[0020] In one embodiment, the butterfly laser testing device further includes at least any one of the following:

[0021] A wiring terminal, the wiring terminal is electrically connected to the circuit board and is used to access an external power source;

[0022] A radio frequency interface is electrically connected to the circuit board and is used to access an external radio frequency signal.

[0023] In one implementation, the radio frequency interface is a SMA interface.

[0024] In one embodiment, the base is made of a thermally conductive material.

[0025] The utility model further provides a testing tool, which includes the butterfly laser testing device described above, and:

[0026] A power supply, electrically connected to the wiring terminal, for supplying power to the circuit board;

[0027] A radio frequency signal source is connected to the radio frequency interface and is used to provide a radio frequency signal to the circuit board.

[0028] Compared with the prior art, the beneficial effects of the utility model are:

[0029] 1. The circuit board can be connected to the RF signal. Multiple output pins corresponding to the power supply pins of the butterfly laser to be tested are directly set on the circuit board, that is, the butterfly laser can be powered and loaded with RF signals. Therefore, relevant RF tests can be directly performed on the butterfly laser to be tested after clamping it;

[0030] 2. Different types of RF tests can be adapted by replacing different circuit boards. 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 the structures shown in these drawings without paying creative work.

[0032] Figure 1 This is a three-dimensional structural diagram of an embodiment of the butterfly laser testing device of the utility model;

[0033] Figure 2 for Figure 1 The three-dimensional structure diagram of the butterfly laser test device after the butterfly laser is loaded;

[0034] Figure 3 for Figure 2 Side view of the butterfly laser test setup shown.

[0035] Description of Figure Numbers:

[0036] 1. Base; 2. Circuit board; 3. Butterfly laser to be tested; 4. Elbow clamp; 41. Fixing seat; 42. Clamp arm; 43. Positioning column; 5. Press block; 6. Adjustable positioning piece; 7. Wiring terminal; 8. RF interface.

[0037] The realization of the purpose, functional features and advantages of the utility model will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0038] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0039] The descriptions of "first", "second", etc. in the present utility model are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in the field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present utility model.

[0040] Currently, butterfly clips are generally used to clamp butterfly lasers in the market. However, butterfly clips can only be used to power butterfly lasers and cannot be used to load RF signals for RF testing.

[0041] The utility model provides a butterfly laser testing device and a testing tool, aiming to solve the above problems.

[0042] See also Figures 1 to 3 In one embodiment, the butterfly laser testing device proposed by the utility model includes:

[0043] Base 1;

[0044] A circuit board 2 is disposed on the base 1; the circuit board 2 is provided with a notch and a plurality of output pins disposed on opposite sides of the notch, the notch is used for placing the butterfly laser 3 to be tested, and each of the output pins is used to be connected to a power supply pin of the butterfly laser 3 to be tested, so as to supply power to the butterfly laser and load a signal;

[0045] A fixing component is connected to the base 1 , and the fixing component is used to fix the butterfly laser 3 to be tested on the base 1 .

[0046] Specifically, the circuit board 2 includes a plurality of output pins and a power supply circuit and a radio frequency circuit connected to the output pins. The butterfly laser 3 to be tested is connected to the output pins through the power supply pins to access the power supply circuit and the radio frequency circuit, etc., so as to realize the circuit components of the butterfly laser. In particular, a notch is provided on the circuit board 2 for the butterfly laser 3 to be tested to be placed. The size of the notch is adapted to the butterfly laser 3 to be tested, and the output pins are provided on opposite sides of the notch, so that when the butterfly laser 3 to be tested is placed in the notch, the output pins and the power supply pins can be naturally in contact.

[0047] Specifically, the butterfly laser testing device is used for RF tests of butterfly lasers, such as low-frequency tests such as distortion and flatness, and can also be used for tests such as current modulation response, circuit compatibility, and dynamic performance under RF control. For different RF testing purposes, only the corresponding circuit board 2 needs to be replaced, and the base 1 and the fixed components do not need to be replaced.

[0048] Optionally, in this embodiment, the butterfly laser test device is used to test the radio frequency performance of the butterfly laser 3 to be tested, and the steps are as follows: a circuit board 2 of a test item is loaded on the base 1; the butterfly laser 3 to be tested is placed in the notch of the circuit board 2, and the height of the circuit board 2 relative to the base 1 and the position of the butterfly laser 3 to be tested on the circuit board 2 are adjusted so that the bottom of the butterfly laser 3 to be tested contacts the base 1, and at the same time, the power supply pins of the butterfly laser 3 to be tested contact with the output pins of the circuit board 2 in a one-to-one correspondence; the butterfly laser 3 to be tested is pressed against the circuit board 2 and the base 1 by a fixing component so that the output pins are in full and close contact with the power supply pins; the external test equipment is connected and the test optical path is debugged; the circuit board 2 is powered on and the radio frequency signal is loaded; the butterfly laser 3 to be tested is powered on and works, and the emitted laser is received, measured and recorded by the external test equipment, and the corresponding test item is completed.

[0049] Therefore, a butterfly laser testing device proposed in the utility model is provided with a circuit board 2, which has a notch and a plurality of output pins arranged corresponding to the butterfly laser 3 to be tested. The circuit board 2 can cooperate with the base plate and the fixing assembly to load the butterfly laser 3 to be tested. While the butterfly laser 3 to be tested is clamped and fixed, it can also be powered and loaded with a radio frequency signal through the circuit board 2. After connecting the external optical path and the test equipment, the radio frequency test of the butterfly laser can be realized; at the same time, different radio frequency test items of the butterfly laser can be realized by replacing the circuit board 2, and the operation is simple and convenient.

[0050] Based on the above embodiments, further, refer to Figure 1 , the fixing assembly comprises:

[0051] A pressing block 5, used for being placed on the butterfly laser 3 to be tested;

[0052] The clamping mechanism abuts against the pressing block 5 , and the butterfly laser 3 to be tested is pressed down and fixed on the base 1 through the pressing block 5 .

[0053] In one embodiment, the clamping mechanism is a toggle clamp 4 .

[0054] Specifically, the fixing assembly is used to fix the relative positions of the butterfly laser 3 to be tested, the circuit board 2 and the base 1, so that the power supply pin of each butterfly laser is in full contact with the output pin on the corresponding circuit board 2, avoiding slippage or poor contact during the test process, resulting in inaccurate test results.

[0055] At the same time, the design of the toggle clamp 4 of the fixing assembly makes the device adaptable to butterfly lasers of different sizes, and the stable fixation of the butterfly laser can be ensured by adjusting the clamping force of the toggle clamp 4. In addition, the flexibility of the toggle clamp 4 allows the device to be easily adjusted when replacing the circuit board 2 or the butterfly laser to adapt to different testing requirements.

[0056] Optionally, in this embodiment, the butterfly laser 3 to be tested is first placed in the notch of the circuit board 2, so that the power supply pins of the butterfly laser are in one-to-one contact with the output pins of the circuit board 2, and the bottom of the butterfly laser is in contact with the base 1; then the pressing block 5 is placed on the butterfly laser, and the pressing block 5 is pressed against the butterfly laser by the elbow clamp 4, so that the power supply pins of the butterfly laser are in full and close contact with the output pins of the circuit board 2.

[0057] Further, see Figures 1 to 3 , the toggle clamp 4 comprises:

[0058] A fixing seat 41, fixedly connected to the base 1;

[0059] The clamp arm 42 has a first end and a second end that are oppositely disposed. The first end of the clamp arm 42 is pivotally connected to the fixing seat 41 , and the second end of the clamp arm 42 is provided with a sliding portion.

[0060] In one embodiment, the toggle clamp 4 further includes a positioning column 43 , which is slidably connected to the sliding portion. The positioning column 43 is used to abut against the pressing block 5 to press down and fix the butterfly laser on the base 1 .

[0061] Specifically, the fixing seat 41 of the elbow clamp 4 is fixedly connected to the base 1, and one end of the clamp arm 42 is pivotally connected to the fixing seat 41 and can rotate around the fixing seat 41. The other end of the clamp arm 42 is provided with a positioning column 43 that can slide along the sliding part of the clamp arm 42. The positioning column 43 and the sliding part can be slidably connected through a metal clip, and a positioning screw can be provided at the same time. By adjusting the tightening degree of the positioning screw, the positioning column 43 can slide smoothly and have a certain degree of tightness. When the clamp arm 42 rotates until the positioning column 43 abuts against the pressure block 5, the pressure block 5 is subjected to the pressure of the clamp arm 42, and then the butterfly laser 3 to be tested is pressed against the base 1. The position of the pressure block 5 can be quickly located by adjusting the position of the positioning column 43.

[0062] Therefore, the toggle clamp 4, the positioning column 43 and the pressing block 5 of the utility model constitute a fixing assembly, and the positioning column 43 is abutted against the pressing block 5 by the rotation of the clamp arm 42, and the pressing block 5 is pressed tightly against the butterfly laser 3 to be tested on the base 1, so as to fix the butterfly laser 3 to be tested and avoid sliding or poor contact during the test. At the same time, the clamp arm 42 is manually lifted and the pressing block 5 is removed, so that the butterfly laser can be taken out, which is convenient for the replacement of the sample to be tested.

[0063] In an optional embodiment, the pressing block 5 is fixedly connected to the positioning column 43 to reduce the steps of placing the pressing block 5 .

[0064] Further, see Figures 1 to 3, the butterfly laser testing device further comprises:

[0065] The circuit board 2 is detachably fixed to the base 1 via the adjustable positioning member 6 .

[0066] In one embodiment, the adjustable positioning member 6 includes a positioning pin and a screw. The positioning pin is arranged between the circuit board 2 and the base 1, and can be used to adjust the height of the circuit board 2 relative to the base 1, and realize a detachable fixed connection between the circuit board 2 and the base 1 through the screw.

[0067] Therefore, the utility model adjusts the height of the circuit board 2 relative to the base 1 through the adjustable positioning member 6, so that the height is adapted to the butterfly laser 3 to be tested in the step of placing the butterfly laser 3 to be tested, so that the bottom of the butterfly laser 3 to be tested can abut against the base 1, which is convenient for subsequent fixing by the fixing component.

[0068] Further, see Figures 1 to 3 , the butterfly laser testing device further comprises at least any one of the following:

[0069] A connection terminal 7, which is electrically connected to the circuit board 2 and is used to access an external power supply; and a radio frequency interface 8, which is electrically connected to the circuit board 2 and is used to access an external radio frequency signal.

[0070] Specifically, the connection terminal 7 is connected to an external power supply to power the circuit board 2, thereby providing the current required for the test of the butterfly laser 3 to be tested; the RF interface 8 is connected to an external RF signal source, such as a network analyzer or a signal generator, thereby providing the RF signal required for the test of the butterfly laser 3 to be tested.

[0071] Therefore, the utility model can supply power and provide a radio frequency test signal to the butterfly laser 3 to be tested after being clamped.

[0072] In an optional embodiment, the radio frequency interface 8 is an SMA interface. The SMA interface, which is called SubMiniatureversion A (micro A type) interface, is a small and widely used radio frequency coaxial connector interface standard. The SMA interface is relatively small in size and is suitable for application environments with limited space. Its physical connection has good stability and reliability, and is therefore suitable for the present utility model.

[0073] Furthermore, the base 1 is made of heat-conducting material.

[0074] Specifically, in the process of butterfly laser generating laser, only part of the electrical energy is converted into light energy, and most of the remaining energy is consumed in the form of heat energy. Especially in high-power applications, the power consumption inside the laser is greater. If the heat generated is not discharged in time, it will cause the laser junction temperature to rise, thus affecting the performance and life of the laser.

[0075] A base substrate with high thermal conductivity may be in contact with the bottom of the butterfly laser 3 to provide heat dissipation function for the base substrate, such as a metal substrate, an aluminum nitride ceramic substrate, a metal core plastic substrate, etc.

[0076] In an optional embodiment, an air cooling and / or water cooling device is used to dissipate heat for the butterfly laser. When air cooling is used, a cooling fan device can be added to the butterfly laser test device; when water cooling is used, a water cooling plate is added to the base 1 or the water cooling plate is directly made into the base 1.

[0077] In another optional embodiment, a semiconductor cooling sheet is used to dissipate heat from the butterfly laser. Specifically, a semiconductor cooling sheet is installed at a position corresponding to the butterfly laser 3 to be tested on the base 1, and the butterfly laser abuts against the semiconductor cooling sheet. Optionally, the semiconductor cooling sheet is electrically connected to the wiring terminal 7, and an external temperature controller supplies power to the semiconductor cooling sheet and controls its temperature through the wiring terminal 7.

[0078] The utility model further provides a testing tool, which includes the butterfly laser testing device described above, and:

[0079] A power supply, electrically connected to the wiring terminal 7, and used to supply power to the circuit board 2;

[0080] A radio frequency signal source is connected to the radio frequency interface 8 and is used to provide a radio frequency signal to the circuit board 2 .

[0081] Specifically, the test fixture proposed in the utility model is used for the RF performance test of the butterfly laser. The test fixture is used to clamp and fix the butterfly laser 3 to be tested and provide power and RF signals for it. The test fixture can constitute the corresponding test items after being combined with external test equipment and adjusting the optical path. The external test equipment can be one or more of the power meter, network analyzer, spectrum analyzer, phase-locked amplifier, noise coefficient analyzer and other equipment.

[0082] In summary, the butterfly laser test device proposed in the utility model not only realizes the clamping and fixing of the butterfly laser and the power supply, but also can load the RF signal to the butterfly laser through the RF interface and the circuit board, which is used for the RF performance test of the butterfly laser. At the same time, the device has strong adaptability, and the circuit board can be easily replaced to meet different RF test requirements. The butterfly laser to be tested can also be easily replaced through the elbow clamp, and the butterfly lasers of different heights and sizes can be adapted through the adjustable positioning parts. The operation is simple and convenient, which greatly improves the test efficiency of the butterfly laser.

[0083] The above description is only a preferred embodiment of the present invention, and does not limit the patent scope of the present invention. All equivalent structures or equivalent process changes made by using the contents of the present invention specification and drawings under the utility model concept, or directly / indirectly used in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. A butterfly laser testing device, characterized in that: The butterfly laser testing device comprises: Base; A circuit board is arranged on the base; the circuit board is provided with a notch and a plurality of output pins arranged on opposite sides of the notch, the notch is used for placing the butterfly laser to be tested, and each of the output pins is used to connect with a power supply pin of the butterfly laser to be tested, so as to supply power to the butterfly laser and load a signal; A fixing component is connected to the base, and the fixing component is used to fix the butterfly laser to be tested on the base.

2. The butterfly laser testing device according to claim 1, characterized in that: The fixing assembly comprises: A pressing block, used for being placed on the butterfly laser to be tested; The clamping mechanism is in contact with the pressing block, and the butterfly laser to be tested is pressed down and fixed on the base through the pressing block.

3. The butterfly laser testing device according to claim 2, characterized in that: The clamping mechanism is a toggle clamp.

4. The butterfly laser testing device according to claim 3, characterized in that: The toggle clamp comprises: A fixing seat, fixedly connected to the base; The clamp arm comprises a first end and a second end which are arranged opposite to each other. The first end of the clamp arm is pivotally connected to the fixing seat, and the second end of the clamp arm is provided with a sliding part.

5. The butterfly laser testing device according to claim 4, characterized in that: The toggle clamp further comprises: A positioning column is slidably connected to the sliding part; the positioning column is used to abut against the pressing block to press down the butterfly laser and fix it on the base.

6. The butterfly laser testing device according to claim 1, characterized in that: The butterfly laser testing device also includes: An adjustable positioning member, through which the circuit board is detachably fixed to the base.

7. The butterfly laser testing device according to claim 1, characterized in that: The butterfly laser testing device further comprises at least any one of the following: A wiring terminal, the wiring terminal is electrically connected to the circuit board and is used to access an external power source; A radio frequency interface is electrically connected to the circuit board and is used to access an external radio frequency signal.

8. The butterfly laser testing device according to claim 7, characterized in that: The radio frequency interface is a SMA interface.

9. The butterfly laser testing device according to any one of claims 7 to 8, characterized in that: The base is made of heat-conducting material.

10. A test tool, characterized in that: The testing tool comprises the butterfly laser testing device according to any one of claims 7 to 9, and: A power supply, electrically connected to the wiring terminal, for supplying power to the circuit board; A radio frequency signal source is connected to the radio frequency interface and is used to provide a radio frequency signal to the circuit board.

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