CN115824588A - Device and method for testing packaging performance of bar - Google Patents
Device and method for testing packaging performance of bar Download PDFInfo
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- CN115824588A CN115824588A CN202211442666.3A CN202211442666A CN115824588A CN 115824588 A CN115824588 A CN 115824588A CN 202211442666 A CN202211442666 A CN 202211442666A CN 115824588 A CN115824588 A CN 115824588A
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Abstract
The invention provides a device for testing the packaging performance of a bar, which comprises: the mounting unit is provided with a plurality of detachable bars in parallel along a first direction; the displacement unit is connected with the mounting unit in a sliding manner and is used for driving the mounting unit to move along a first direction; the adjusting unit is used for adjusting the position of the fast axis collimating lens so that light spots of the single bar-emitted light beam are compressed by the fast axis collimating lens; and the test unit is used for shaping and splitting the light beam passing through the fast axis collimating lens and testing the photoelectric parameters of the bars. The device of the invention saves the time that the test of the prior art needs to be disassembled and replaced after a single bar is tested, but can test a plurality of bars after one-time bar installation, thereby improving the test efficiency. The invention also provides a method for testing the packaging performance of the bar.
Description
Technical Field
The invention relates to the technical field of lasers, in particular to a device and a method for testing packaging performance of a bar.
Background
The semiconductor laser has the advantages of small volume, light weight, high electro-optical conversion efficiency, stable performance, high reliability, long service life and the like, has become the most promising field in the photoelectric industry, can be widely applied to the industries such as communication, medical treatment, aerospace, manufacturing industry, scientific research, cosmetology, safety protection, display and printing, laser marking and the like, and is very important to test and characterize the performance parameters of the semiconductor laser, so that the correct use of the laser can be ensured and the service life of the laser can be prolonged.
In practical application, the power requirement on the laser is continuously increased, and from the packaging perspective, to obtain high-power output, the improvement of several orders of magnitude of the power of the semiconductor laser is mostly realized by stacking a plurality of bars on the laser array in the vertical direction at present. Because the vertical array beam collimation effect and the energy coupling efficiency are higher and higher, the beam quality is reduced, so that the test of the optical performance of the laser array, such as a spot smile value, a spot divergence angle and the like, has important significance for the research of the vertical laser array with high level, high power and high reliability. For mass production manufacturing, it is crucial to measure the bar package individual bar semi-finished package performance and optical characteristics quickly.
In the process of implementing the invention, the inventor finds that at least the following problems exist in the prior art: at present, the photoelectric performance test of the bar packaged semi-finished product is a single measurement, the test efficiency is low, and the test structure is complex.
Disclosure of Invention
The present invention is directed to solving, at least to some extent, one of the technical problems in the related art.
Therefore, the invention aims to provide a device and a method for testing the packaging performance of a bar, so that the photoelectric performance of a plurality of middle bars can be tested, the testing efficiency is improved, and the testing operation steps are simplified.
In order to achieve the above object, a first aspect of the present invention provides an apparatus for testing the performance of a bar package, comprising:
the mounting unit is provided with a plurality of detachable bars in parallel along a first direction;
the displacement unit is connected with the mounting unit in a sliding mode and used for driving the mounting unit to move along the first direction;
the adjusting unit is used for adjusting the position of the fast axis collimating lens, so that the light spots of the single bar emergent light beam are compressed by the fast axis collimating lens;
and the test unit is used for shaping and splitting the light beam passing through the fast axis collimating lens and testing the photoelectric parameters of the bars.
According to the device for testing the packaging performance of the bars, the mounting unit can be used for mounting the bars at one time, the displacement unit can be used for sequentially placing the fast-axis collimating lenses in front of the bars to be tested, the time that the fast-axis collimating lenses need to be disassembled and replaced after a single bar is tested in the prior art is saved, the bars can be tested after the bars are mounted at one time, and the testing efficiency is improved. The device of the invention has no reflectors, and the structure is simplified. In addition, the device uses the adjusting unit to adjust the position of the fast axis collimating lens in front of the bar, so that the light spot of the emergent light beam of the bar is compressed to be the finest and brightest, and the test precision is further improved.
According to one embodiment of the present invention, the mounting unit includes:
a base plate;
the water cooling seat is arranged on the bottom plate;
the negative pole seat is arranged on the water cooling seat and is connected with the negative pole of the power supply;
the water cooling seat is arranged on the water cooling seat and is connected with the positive electrode of a power supply, a semi-finished product is arranged on the water cooling seat, the bars are arranged at the front end of the semi-finished product, and the number of the bars is the same as that of the semi-finished product;
and the negative pressure block is hinged with the negative seat and used for supplying power to the negative electrode of the semi-finished product when the negative pressure block is pressed down.
According to one embodiment of the invention, the displacement unit comprises:
the output shaft of the motor is connected with a lead screw;
the sliding table base is provided with a sliding way;
the sliding table is connected with the sliding way in a sliding mode, and the bottom of the sliding table is connected with the lead screw in a threaded mode;
and the connector is used for receiving the instruction and enabling the motor to rotate according to the instruction.
According to one embodiment of the invention, the adjusting unit comprises:
a six-dimensional optical adjustment stage;
the one end of extension arm with the one end of six-dimensional optical adjustment platform is connected, the other end and the fast axis collimating lens of extension arm are fixed.
According to one embodiment of the invention, the test unit comprises:
the slow axis collimating lens is used for collimating the slow axis of the light beam passing through the fast axis collimating lens;
a beam splitter for splitting the light beam passing through the slow axis collimating lens into a first light beam and a second light beam,
the integrating sphere is used for receiving the first light beam and testing the power, the wavelength, the half width and the 90% energy of the bar;
and the imaging unit is used for receiving the second light beam and testing the smile value of the near-field light spot and the divergence angle of the far-field light spot of the bar.
According to one embodiment of the invention, the test cell further comprises a polarizer for producing polarized light to the light beam passing through the slow-axis collimating lens.
According to an embodiment of the present invention, the imaging unit includes:
a slide rail seat;
the sliding block is connected with the sliding rail seat in a sliding way;
the first support frame is arranged on the sliding block;
the lens cone is arranged on the first support frame;
and the CCD module is connected with the lens cone.
According to one embodiment of the invention, the extension arm comprises:
the first connecting arm is of a hollow structure, and one end of the first connecting arm is a suction nozzle;
and the second connecting arm is detachably connected with the first connecting arm, and the second connecting arm is connected with the six-dimensional optical adjusting platform.
According to an embodiment of the present invention, further comprising:
the first camera unit is arranged on one side of the light beam emitted by the bar and used for monitoring whether the light-emitting point of the light-emitting surface of the bar emits light and whether the fast axis collimating lens is in place or not from a visual angle;
and the second camera unit is arranged on the other side of the light beam emitted by the bar and used for monitoring whether the light-emitting point of the light-emitting surface of the bar emits light and whether the fast-axis collimating lens is in place or not from another visual angle.
A second aspect of the present invention provides a method for testing a bar packaging performance, which is performed based on the apparatus for testing a bar packaging performance of the first aspect, and includes:
mounting a plurality of the bars side by side in the first direction on the mounting unit;
installing and adjusting the fast axis collimating lens by using the adjusting unit, wherein the fast axis collimating lens is positioned in front of the light emitting surface of the bar to be tested;
testing the photoelectric parameters of the bar to be tested by using the testing unit, and driving the mounting unit to move along the first direction by using the displacement unit so that the fast axis collimating lens is positioned in front of the light-emitting surface of the next bar to be tested; this step is repeated until all of the bar tests are completed.
According to the method for testing the packaging performance of the bar, a plurality of single bars can be simultaneously installed on the installation unit, the fast-axis collimating lenses can be sequentially placed in front of the bar to be tested by the displacement unit, the time that the fast-axis collimating lenses need to be disassembled and replaced after the single bar is tested in the prior art is saved, the plurality of bars can be tested after the bar is installed at one time, and the testing efficiency is improved. The adjusting unit can adjust the position of fast axis collimating lens in the barre the place ahead, makes the barre go out the light beam facula and is compressed to finest brightest, and then improves the measuring accuracy.
Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.
Drawings
Various additional advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The drawings are only for purposes of illustrating the preferred embodiments and are not to be construed as limiting the invention. Also, like reference numerals are used to refer to like parts throughout the drawings. Wherein:
fig. 1 is a schematic top view of an apparatus for testing the performance of a bar package according to an embodiment of the present invention.
Fig. 2 is a schematic perspective view of an apparatus for testing the packaging performance of a bar according to an embodiment of the present invention.
Fig. 3 is a schematic diagram of a mounting unit, a displacement unit and an adjusting unit of the device for testing the packaging performance of the bar, according to an embodiment of the present invention.
Fig. 4 is a schematic view of another angle of the mounting unit, the displacement unit and the adjusting unit of the device for testing the bar packaging performance according to an embodiment of the present invention.
Fig. 5 is a schematic structural diagram of a mounting unit of an apparatus for testing the performance of a bar package according to an embodiment of the present invention.
Fig. 6 is a schematic structural diagram of a displacement unit of an apparatus for testing the performance of a bar package according to an embodiment of the present invention.
Fig. 7 is a flow chart illustrating a method for testing the performance of a bar package according to a first aspect of the present invention.
Description of reference numerals:
the device comprises a mounting unit, a displacement unit, a 3-adjusting unit, a 4-first camera unit, a 5-second camera unit, a 6-slow-axis collimating lens, a 7-polaroid, an 8-spectroscope, a 9-integrating sphere, a 10-imaging unit, an 11-extension arm, a 12-base, a 13-negative pole base, a 14-positive pole base, a 15-negative pole pressing block, a 16-fastener, a 17-bar, an 18-semi-finished product, a 19-water cooling base, a 20-base plate, a 21-sliding table base, a 22-upper cover, a 23-sliding table, a 24-motor, a 25-connector, a 26-lead screw, a 27-slideway, a 61-second support frame, a 71-third support frame, a 81-fourth support frame, a 91-fifth support frame, a 101-slider, a 102-sliding rail base, a 103-first support frame, a 104-lens barrel, a 105-CCD module, a 111-first connecting arm, a 112-second connecting arm, a 113-yaw angle adjusting unit, a 114-adjusting unit, a 115-roll angle adjusting unit, a 116-pitch angle adjusting unit, a longitudinal adjusting unit, a 117-suction nozzle adjusting unit and a transverse adjusting unit.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention. On the contrary, the embodiments of the invention include all changes, modifications and equivalents coming within the spirit and terms of the claims appended hereto.
Fig. 1 is a schematic top view of an apparatus for testing the performance of a bar package according to an embodiment of the present invention.
Referring to fig. 1 and 5, an apparatus for testing the packaging performance of a bar includes a mounting unit 1, a displacement unit 2, an adjusting unit 3, and a testing unit. Wherein:
a plurality of detachable bars 17 are arranged side by side along the first direction on the mounting unit 1. The bar 17 may be a single bar laser or a bar inside a stacked array laser. The stacked matrix laser consists of a number of bars stacked vertically, each of which needs to be tested at the time of testing. The displacement unit 2 is slidably connected with the mounting unit 1, and the displacement unit 2 is used for driving the mounting unit 1 to move along a first direction. In the present embodiment, the first direction is the longitudinal direction of the displacement unit 2. The moving distance of the displacement unit 2 can be controlled. The adjusting unit 3 is used for adjusting the position of the fast axis collimating lens, so that the light spots of the light beams emitted by the single bar 17 are compressed by the fast axis collimating lens, and the purpose is to compress the light spots of the light beams emitted by the bar to be the finest and the brightest. The test unit is used for shaping and splitting the light beam passing through the fast axis collimating lens and testing the photoelectric parameters of the bar 17.
In one embodiment, the mounting unit 1, the displacement unit 2, the adjustment unit 3 and the test unit are all mounted on one base 12. The base 12 plays a supporting role, and supports the components such as the mounting unit 1, the displacement unit 2, the adjusting unit 3 and the testing unit.
According to the device for testing the packaging performance of the bars, disclosed by the embodiment of the invention, the mounting unit can be used for mounting a plurality of bars at one time, the displacement unit can be used for sequentially placing the fast-axis collimating lenses in front of the bars to be tested, so that the time for disassembling and replacing the fast-axis collimating lenses after testing a single bar in the prior art is saved, a plurality of bars can be tested after mounting the bars at one time, and the testing efficiency is improved. The device of the invention has no reflectors, and the structure is simplified. In addition, the device uses the adjusting unit to adjust the position of the fast axis collimating lens in front of the bar, so that the light spot of the emergent light beam of the bar is compressed to be the finest and brightest, and the test precision is further improved.
In some embodiments, as shown in fig. 3 and 5, the mounting unit 1 includes a bottom plate 20, a water-cooled seat 19, a negative seat 13, a positive seat 14, and a negative compact 15. Wherein:
the water cooling seat 19 is arranged on the bottom plate 20. The base plate 20 is connected to the displacement unit 2, and the base plate 20 moves synchronously with the displacement unit 2. The negative electrode seat 13 is arranged on the water cooling seat 19 and is connected with the negative electrode of the power supply. The anode seat 14 is arranged on the water-cooling seat 19 and connected with the anode of the power supply, and the semi-finished product 18 is arranged on the anode seat 14. The semi-finished product 18 is a bar laser on a stacked array laser in the testing phase. The negative electrode holder 13 and the positive electrode holder 14 are used for supplying power to the bar 17, and the negative electrode holder 13 and the positive electrode holder 14 are arranged in a spaced-apart manner. The bars 17 are mounted at the front end of the semi-finished product 18, and the number of the bars 17 is the same as that of the semi-finished product 18. In one example, the semi-finished product 18 is integrally mounted on the positive electrode holder 14. The negative pressing block 15 is hinged with the negative seat 13, when the negative pressing block 15 is pressed downwards, one end of the negative pressing block 15, which is far away from the negative seat 13, is in contact with the positive seat 14, and power supply of the negative electrode and the positive electrode of the semi-finished product 18 is completed. Optionally, the negative electrode holder 13 is provided with a threaded hole, and when the bar 17 needs to be powered, the negative electrode pressing block 15 is fixed by the fastener 16. In one example, the semi-finished product 18 has a microfluidic channel, and the water-cooled seat 19 has a fluid channel therein, and the fluid channel is in communication with the microfluidic channel to provide heat dissipation for the semi-finished product 18.
In some embodiments, as shown in fig. 3 and 6, the displacement unit 2 includes a motor 24, a slide base 21, a slide 23, and a connector 25. Wherein, the output shaft of the motor 24 is connected with a lead screw 26. The slide way base 21 is provided with a slide way 27. The sliding table 23 is connected with the slideway 27 in a sliding way, and the bottom of the sliding table 23 is connected with the screw rod 26 in a threaded way. The connector 25 is used for receiving commands to rotate the motor 24 according to the commands. In one example, the device for testing the packaging performance of the bar comprises an industrial personal computer, wherein the industrial personal computer is connected with the connector 25 and controls the forward and reverse transmission of the sliding table 23. In one example, an upper cover 22 is further disposed on the sliding table base 21, and the upper cover 22 plays a role of dust prevention. The moving distance of the bar can be statically controlled by the motor, and semi-automatic testing is achieved.
In some embodiments, as shown in connection with fig. 2, 3 and 5, the conditioning unit 3 includes a six-dimensional optical conditioning platform and an extension arm 11. The six-dimensional optical adjustment platform comprises a yaw angle adjustment unit 113, a pitch angle adjustment unit 114, a roll angle adjustment unit 115, a vertical adjustment unit 116, a longitudinal adjustment unit 117 and a transverse adjustment unit 118. The yaw angle adjusting unit 113, the pitch angle adjusting unit 114 and the roll angle adjusting unit 115 are used for adjusting the euler angles of the six-dimensional optical adjustment platform. The vertical adjusting unit 116, the longitudinal adjusting unit 117 and the transverse adjusting unit 118 are used for adjusting the spatial coordinate triaxial direction of the six-dimensional optical adjustment platform. The six-dimensional optical adjustment platform realizes high-precision adjustment of the fast axis collimating lens. One end of the extension arm 11 is connected with the six-dimensional optical adjustment platform, and the other end of the extension arm 11 is fixed with the fast axis collimating lens. Optionally, one end of the extension arm 11 is connected to the yaw angle adjusting unit 113. The other end of the extension arm 11 and the fast axis collimating lens can be connected in a gluing way, a detachable way, a suction way and the like. To accommodate the optical characteristics of different types of bars, the fast axis collimating lens is replaceable. To improve the convenience of replacing the fast axis collimating lens, the extension arm 11 is provided with a suction nozzle 119 at an end close to the fast axis collimating lens in one embodiment. The suction nozzle 119 generates negative pressure to adsorb the fast axis collimating lens, and when the fast axis collimating lens needs to be replaced, the suction nozzle 119 stops sucking and is replaced with a proper fast axis collimating lens. To avoid the extension arm 11 from blocking the light beam passing through the fast axis collimating lens, in one embodiment, a suction nozzle 119 is provided at the bottom of the extension arm 11.
In one example, the extension arm 11 includes a first connection arm 111 and a second connection arm 112. The first connection arm 111 has a hollow structure, and one end of the first connection arm 111 is a suction nozzle 119. The second connecting arm 112 is detachably connected to the first connecting arm 111, and the second connecting arm 112 is connected to the six-dimensional optical adjustment platform. Optionally, the second connecting arm 112 forms an included angle with the first connecting arm 111 to avoid blocking the light beam emitted from the bar.
In some embodiments, as shown in fig. 1 and 2, the device for testing the performance of the bar package further includes a first camera unit 4 and a second camera unit 5. Wherein: the first camera unit 4 is arranged on one side of the light beam emitted by the bar 17 and used for monitoring whether the light-emitting point of the light-emitting surface of the bar 17 emits light and whether the fast-axis collimating lens is in place or not from one visual angle; the second camera unit 5 is disposed on the other side of the light beam emitted from the bar 17, and is configured to monitor whether the light emitting point on the light emitting surface of the bar 17 emits light and whether the fast axis collimating lens is in place from another view angle. The first camera unit 4 and the second camera unit 5 can observe the light-emitting cavity surface condition of the single bar, and can rapidly identify the light-emitting point which is not lighted when the single bar fails.
In some embodiments, as shown in fig. 1 and 2, the testing unit of the device for testing the bar packaging performance comprises a slow-axis collimating lens 6, a spectroscope 8, an integrating sphere 9 and an imaging unit 10. Wherein: the slow axis collimating lens 6 is used for slow axis collimation of the light beam passing through the fast axis collimating lens. The beam splitter 8 is used for splitting the light beam passing through the slow axis collimating lens 6 into a first light beam and a second light beam. Integrating sphere 9 is used to receive the first beam, test the power, wavelength, half width and 90% energy of bar 17. The imaging unit 10 is used for receiving the second light beam, and testing the smile value of the near-field light spot and the divergence angle of the far-field light spot of the bar.
In one example, beam splitter 8 splits the beam from the bar by power 1.
In one example, the test cell further comprises a polarizer 7, the polarizer 7 being used to produce polarized light for the beam passing through the slow-axis collimating lens 6. In the polarization degree test, firstly, the polarizer 7 is not added, the bar power P is measured, then, the polarizer 7 is placed at a fixed position, the bar power P1 is measured, and the P1/P obtains the polarization degree of the bar.
In one example, the imaging unit 10 includes a slider 101, a slide rail base 102, a first support frame 103, a lens barrel 104, and a CCD (charge coupled device) module 105. Wherein the rail seat 102 is fixed to the base 12. The slider 101 is slidably connected to the rail seat 102. The first support frame 103 is disposed on the slider 101. The lens barrel 104 is disposed on the first support frame 103. The CCD module 105 is connected to the lens barrel 104. It can be seen that the distance between the lens barrel 104 and the spectroscope 8 can be adjusted by moving the slider 101, so that the imaging effect of the CCD module 105 is the best, the smile value of the near-field test light spot is accurately identified, and the divergence angle of the light spot is accurately tested by moving to the far field.
In addition, the slow axis collimating lens 6 is disposed on the second support frame 61, the polarizing plate 7 is disposed on the third support frame 71, the spectroscope 8 is disposed on the fourth support frame 81, and the integrating sphere 9 is disposed on the fifth support frame 91. The positions and the heights of the support frames can be designed according to actual needs, and the building requirements of different optical test platforms are met.
In view of the above, a second aspect of the embodiments of the present invention provides a method for testing the performance of a bar package, which is performed by an apparatus for testing the performance of a bar package according to the first aspect. With reference to fig. 1 to 7, the implementation flow of the method is as follows:
in step S102, several bars 17 are mounted side by side in a first direction on the mounting unit 1.
In this embodiment, the bars 17 are tested one by one. After all the bars on the mounting unit 1 are tested, a batch of untested bars are replaced, so that the operation steps of replacing one bar for one test in the prior art are avoided, and the test time is saved.
Step S104, the adjusting unit 3 is used to adjust a fast axis collimating lens, wherein the fast axis collimating lens is located in front of the light-emitting surface of the bar 17 to be tested.
In this embodiment, the position adjustment of the adjustment unit 3 is performed by the six-dimensional optical adjustment platform, and the adjustment precision is high.
Step S106, testing the photoelectric parameters of the bar 17 to be tested by using the testing unit, and driving the mounting unit 1 to move along the first direction by using the displacement unit 2 so that the fast axis collimating lens is positioned in front of the light-emitting surface of the next bar 17 to be tested; this step is repeated until all the bars 17 on the mounting unit have been tested.
In this embodiment, the displacement unit 2 adopts the electronic slip table that motor and lead screw constitute, can pass through the automatic accurate displacement distance of control installation unit once of industrial computer, ensures that the play plain noodles of the bar that awaits measuring is accurate relative with fast axle collimating lens, reduces adjustment time, raises the efficiency.
The method for testing the bar package performance of the embodiment can achieve the same or similar effect as any of the device embodiments corresponding to the method.
It should be noted that, in the description of the present invention, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. In addition, in the description of the present invention, "a plurality" means two or more unless otherwise specified.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; may be mechanically coupled, may be electrically coupled or may be in communication with each other; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In the present invention, unless otherwise expressly stated or limited, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through an intermediate. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.
In the description of the present invention, the terms "left", "right", "front", "rear", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention.
Any process or method descriptions in flow charts or otherwise described herein may be understood as representing modules, segments, or portions of code which include one or more executable instructions for implementing specific logical functions or steps of the process, and alternate implementations are included within the scope of the preferred embodiment of the present invention in which functions may be executed out of order from that shown or discussed, including substantially concurrently or in reverse order, depending on the functionality involved, as would be understood by those reasonably skilled in the art of the present invention.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art within the scope of the present invention.
Claims (10)
1. An apparatus for testing the performance of a bar package, comprising:
the device comprises a mounting unit (1), wherein a plurality of detachable bars (17) are mounted on the mounting unit (1) side by side along a first direction;
a displacement unit (2), wherein the displacement unit (2) is slidably connected with the mounting unit (1), and the displacement unit (2) is used for driving the mounting unit (1) to move along the first direction;
the adjusting unit (3) is used for adjusting the position of a fast axis collimating lens, so that the light spot of the light beam emitted by the single bar (17) is compressed by the fast axis collimating lens;
and the testing unit is used for shaping and splitting the light beam passing through the fast axis collimating lens and testing the photoelectric parameters of the bar (17).
2. The device for testing the performance of a bar package according to claim 1, wherein the mounting unit (1) comprises:
a bottom plate (19);
the water cooling seat (20) is arranged on the bottom plate (19);
the negative pole seat (13) is arranged on the water cooling seat (20) and is connected with the negative pole of the power supply;
the positive pole seat (14) is arranged on the water cooling seat (20) and connected with a positive pole of a power supply, a semi-finished product (18) is mounted on the positive pole seat (14), the bars (17) are mounted at the front end of the semi-finished product (18), and the number of the bars (17) is the same as that of the semi-finished product (18);
and the negative pole pressing block (15) is hinged with the negative pole seat (13), and the negative pole pressing block (15) is used for supplying power to the negative pole of the semi-finished product (18) when the negative pole pressing block is pressed down.
3. The device for testing the performance of a bar package according to claim 1, wherein the displacement unit (2) comprises:
the output shaft of the motor (24) is connected with a lead screw (26);
the sliding table base (21), the sliding table base (21) is provided with a slideway (27);
the sliding table (23) is connected with the sliding way (27) in a sliding mode, and the bottom of the sliding table (23) is in threaded connection with the lead screw (26);
and the connector (25) is used for receiving a command to enable the motor (24) to rotate according to the command.
4. The device for testing the performance of a bar package according to claim 1, wherein the adjusting unit (3) comprises:
a six-dimensional optical adjustment stage;
the one end of extension arm (11) with the one end of six-dimensional optical adjustment platform is connected, the other end and the fast axis collimating lens of extension arm (11) are fixed.
5. The apparatus for testing the performance of a bar package of claim 1, wherein the test unit comprises:
the slow-axis collimating lens (6) is used for collimating the slow axis of the light beam passing through the fast-axis collimating lens;
a beam splitter (8) for splitting the light beam passing through the slow axis collimating lens (6) into a first light beam and a second light beam,
an integrating sphere (9) for receiving said first light beam, testing said bars (17) for power, wavelength, half-width, 90% energy;
and the imaging unit (10) is used for receiving the second light beam and testing the near-field light spot smile value and the far-field light spot divergence angle of the bar.
6. The device for testing the performance of a bar package according to claim 5, characterized in that the test unit further comprises a polarizer (7), the polarizer (7) being used to produce polarized light for the light beam passing through the slow-axis collimating lens (6).
7. The device for testing the performance of a bar package according to claim 5, wherein the imaging unit (10) comprises:
a slide rail seat (102);
a slider (101) slidably connected to the rail seat (102);
a first support frame (103) arranged on the slide block (101);
a lens barrel (104) disposed on the first support frame (103);
and a CCD module (105) connected to the lens barrel (104).
8. The device for testing the packaging performance of a bar according to claim 4, characterized in that the extension arm (11) comprises:
the first connecting arm (111), the first connecting arm (111) is a hollow structure, and one end of the first connecting arm (111) is a suction nozzle (119);
and the second connecting arm (112) is detachably connected with the first connecting arm (111), and the second connecting arm (112) is connected with the six-dimensional optical adjusting platform.
9. The apparatus for testing the performance of a bar package of claim 1, further comprising:
the first camera unit (4) is arranged on one side of the light beam emitted by the bar (17) and used for monitoring whether the light-emitting point of the light-emitting surface of the bar (17) emits light and whether the fast axis collimating lens is in place or not from one visual angle;
and the second camera unit (5) is arranged on the other side of the light beam emitted by the bar (17) and is used for monitoring whether the light-emitting point of the light-emitting surface of the bar (17) emits light and whether the fast axis collimating lens is in place or not from another visual angle.
10. A method for testing the performance of a bar package, which is performed by the apparatus for testing the performance of a bar package according to any one of claims 1 to 9, comprising:
-mounting several of said bars (17) side by side in said first direction on said mounting unit (1);
the fast axis collimating lens is adjusted by the adjusting unit (3), wherein the fast axis collimating lens is positioned in front of the light-emitting surface of the bar (17) to be tested;
testing the photoelectric parameters of the bar (17) to be tested by using the testing unit, and driving the mounting unit (1) to move along the first direction by using the displacement unit (2) to enable the fast-axis collimating lens to be positioned in front of the light-emitting surface of the next bar (17) to be tested; this step is repeated until all of the bars (17) have been tested.
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| CN202211442666.3A CN115824588B (en) | 2022-11-16 | 2022-11-16 | Device and method for testing packaging performance of bar |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103743549A (en) * | 2013-12-11 | 2014-04-23 | 中国科学院苏州生物医学工程技术研究所 | Device performance measuring apparatus for semiconductor laser bar |
| CN105784330A (en) * | 2016-02-29 | 2016-07-20 | 中国科学院长春光学精密机械与物理研究所 | Semiconductor laser bar unit consistency detector and detection method thereof |
| CN107144423A (en) * | 2017-06-23 | 2017-09-08 | 中国科学院光电研究院 | A kind of laser diode folds single bar bar power and stability measurement device and method in battle array |
| CN112595498A (en) * | 2021-03-04 | 2021-04-02 | 武汉人和睿视科技有限公司 | Optical property detection system for light emission of laser bars and single tubes of laser bars |
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2022
- 2022-11-16 CN CN202211442666.3A patent/CN115824588B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103743549A (en) * | 2013-12-11 | 2014-04-23 | 中国科学院苏州生物医学工程技术研究所 | Device performance measuring apparatus for semiconductor laser bar |
| CN105784330A (en) * | 2016-02-29 | 2016-07-20 | 中国科学院长春光学精密机械与物理研究所 | Semiconductor laser bar unit consistency detector and detection method thereof |
| CN107144423A (en) * | 2017-06-23 | 2017-09-08 | 中国科学院光电研究院 | A kind of laser diode folds single bar bar power and stability measurement device and method in battle array |
| CN112595498A (en) * | 2021-03-04 | 2021-04-02 | 武汉人和睿视科技有限公司 | Optical property detection system for light emission of laser bars and single tubes of laser bars |
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| CN115824588B (en) | 2023-06-27 |
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