CN115824588B - 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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- CN115824588B CN115824588B CN202211442666.3A CN202211442666A CN115824588B CN 115824588 B CN115824588 B CN 115824588B CN 202211442666 A CN202211442666 A CN 202211442666A CN 115824588 B CN115824588 B CN 115824588B
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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 side by side along a first direction; the displacement unit is slidably connected with the mounting unit 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 the 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 bar. The device saves the time of disassembling and replacing after testing a single bar in the prior art, can test a plurality of bars after installing the bar once, and improves the testing 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 the 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 of communication, medical treatment, aerospace, manufacturing industry, scientific research, cosmetology, safety protection, display, printing, laser marking and the like, and is of great importance in testing and characterizing 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 improved, and in order to obtain high power output from the packaging perspective, the improvement of the power of the semiconductor laser by several orders of magnitude is mostly realized by stacking a plurality of bars in a laser array in the vertical direction. Because the beam collimation effect and the energy coupling efficiency of the vertical array are higher and higher, the beam quality can be reduced, so that the test of the optical performance of the laser array, such as a light spot smile value, a light 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 important to rapidly measure the packaging performance and optical characteristics of the bar packaging single bar semi-finished product.
In carrying out the invention, the inventors have found that at least the following problems exist in the prior art: at present, the photoelectric performance test of the semi-finished product of the bar package is single measurement, the test efficiency is low, and the test structure is complex.
Disclosure of Invention
The present invention aims to solve at least one of the technical problems in the related art to a certain extent.
Therefore, the invention aims to provide a device and a method for testing the packaging performance of bars, which are used for testing the photoelectric performance of a plurality of middle bars, improving the testing efficiency and simplifying the testing operation steps.
To achieve the above object, a first aspect of the present invention provides an apparatus for testing performance of a bar package, comprising:
the mounting unit is provided with a plurality of detachable bars side by side along a first direction;
the displacement unit is slidably connected with the mounting unit and is 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 outgoing 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 bar.
According to the device for testing the packaging performance of the bars, disclosed by 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 lens in front of the bars to be tested, so that the time of disassembling and replacing the bars after the single bars are tested in the prior art is saved, the bars can be tested after being mounted at one time, and the testing efficiency is improved. The device of the invention has no multiple reflectors and the structure is simplified. In addition, the device provided by the invention uses the adjusting unit to adjust the position of the fast axis collimating lens in front of the bar, so that the light beam spots of the bar emergent light are compressed to be the thinnest and brightest, and the testing precision is further improved.
According to one embodiment of the invention, the mounting unit comprises:
a bottom plate;
the water cooling seat is arranged on the bottom plate;
the negative electrode seat is arranged on the water cooling seat and is connected with the negative electrode of the power supply;
the positive electrode seat is arranged on the water cooling seat and connected with the positive electrode of the power supply, a semi-finished product is arranged on the positive electrode 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 electrode pressing block is hinged with the negative electrode seat and is used for supplying power to the negative electrode of the semi-finished product when the negative electrode pressing 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 in sliding connection with the sliding way, and the bottom of the sliding table is in threaded connection with the lead screw;
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 platform;
and one end of the extension arm is connected with one end of the six-dimensional optical adjustment platform, and the other end of the extension arm is fixed with the fast axis collimating lens.
According to one embodiment of the invention, the test unit comprises:
a slow axis collimating lens for slow axis collimation 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,
an integrating sphere for receiving the first light beam, testing the power, wavelength, half-width and 90% energy of the bar;
and the imaging unit 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.
According to one embodiment of the invention, the test unit further comprises a polarizer for producing polarized light for 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 manner;
the first support frame is arranged on the sliding block;
the lens barrel is arranged on the first supporting frame;
and the CCD module is connected with the lens barrel.
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 is connected with the six-dimensional optical adjustment platform.
According to one embodiment of the present invention, further comprising:
the first camera shooting 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 or not and whether the fast axis collimating lens is assembled and adjusted in place or not from a visual angle;
the second camera shooting 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 or not and whether the fast axis collimating lens is assembled or not in place from another view angle.
A second aspect of the present invention proposes a method for testing performance of a bar package, which is completed based on the device for testing performance of a bar package described in the first aspect, and includes:
installing a plurality of bars on the installation unit side by side along the first direction;
the fast axis collimating lens is assembled and adjusted by the adjusting unit, wherein the fast axis collimating lens is positioned in front of the light emitting surface of the bar to be tested;
the test unit is used for testing the photoelectric parameters of the bar to be tested, and the displacement unit is used for driving the mounting unit to move along the first direction, 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 bars, disclosed by the invention, a plurality of single bars can be simultaneously installed on the installation unit, the displacement unit can sequentially place the fast axis collimating lens in front of the bars to be tested, the time of disassembling and replacing the bars after the single bars are tested in the prior art is saved, the bars can be tested after being installed at one time, and the testing efficiency is improved. The adjusting unit can adjust the position of the fast axis collimating lens in front of the bar, so that the light beam spots of the bar emergent light are compressed to be the thinnest and brightest, and further the testing precision is improved.
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 other 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 designate like parts throughout the figures. Wherein:
fig. 1 is a schematic top view of an apparatus for testing the packaging performance of a bar 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 view of a mounting unit, a displacement unit and an adjustment unit of an apparatus for testing the performance of a bar package 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 adjustment unit of the device for testing the packaging performance of the bar according to an embodiment of the present invention.
Fig. 5 is a schematic structural view of a mounting unit of an apparatus for testing the packaging performance of a bar 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 packaging performance of a bar according to an embodiment of the present invention.
Fig. 7 is a flow chart of a method for testing the packaging performance of a bar according to the present invention.
Reference numerals illustrate:
1-mounting unit, 2-displacement unit, 3-adjustment unit, 4-first camera unit, 5-second camera unit, 6-slow axis collimating lens, 7-polarizer, 8-spectroscope, 9-integrating sphere, 10-imaging unit, 11-extension arm, 12-base, 13-negative pole base, 14-positive pole base, 15-negative pole press block, 16-fastener, 17-bar, 18-semi-finished product, 19-water cooling base, 20-base plate, 21-slide base, 22-upper cover, 23-slide table, 24-motor, 25-connector, 26-lead screw, 27-slide rail, 61-second support frame, 71-third support frame, 81-fourth support frame, 91-fifth support frame, 101-slide block, 102-slide rail base, 103-first support frame, 104-barrel, 105-CCD module, 111-first connecting arm, 112-second connecting arm, 113-yaw angle adjustment unit, 114-pitch angle adjustment unit, 115-roll angle adjustment unit, 116-vertical adjustment unit, 117-longitudinal adjustment unit, 117-yaw angle adjustment unit, 118-yaw angle adjustment unit.
Detailed Description
Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative only and are not to be construed as limiting the invention. On the contrary, the embodiments of the invention include all alternatives, modifications and equivalents as may be included within the spirit and scope of the appended claims.
Fig. 1 is a schematic top view of an apparatus for testing the packaging performance of a bar 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 removable bars 17 are mounted side by side in a first direction on the mounting unit 1. The bar 17 may be a single bar laser or may be a bar within a stacked array laser. The stacked laser is made up of a number of bars stacked vertically, each of which needs to be tested during testing. The displacement unit 2 is slidably connected to the mounting unit 1, the displacement unit 2 being adapted to drive the mounting unit 1 to move in 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 spot of the beam emitted by the single bar 17 is compressed by the fast axis collimating lens, and the purpose is to compress the light spot of the beam emitted by the bar to the thinnest and brightest. The test unit is used for shaping and splitting the beam passing through the fast axis collimator 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 to support the components such as the mounting unit 1, the displacement unit 2, the adjusting unit 3, the testing unit and the like.
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 lens in front of the bars to be tested, so that the time for disassembling and replacing the bars after the single bars are tested in the prior art is saved, the bars can be tested after being mounted at one time, and the testing efficiency is improved. The device of the invention has no multiple reflectors and the structure is simplified. In addition, the device provided by the invention uses the adjusting unit to adjust the position of the fast axis collimating lens in front of the bar, so that the light beam spots of the bar emergent light are compressed to be the thinnest and brightest, and the testing precision is further improved.
In some embodiments, as shown in connection with fig. 3, 5, the mounting unit 1 comprises a base plate 20, a water-cooled seat 19, a negative electrode seat 13, a positive electrode seat 14 and a negative electrode compact 15. Wherein:
the water cooling seat 19 is arranged on the bottom plate 20. The bottom plate 20 is connected with the displacement unit 2, and the bottom plate 20 synchronously moves along with the displacement unit 2. The negative electrode base 13 is arranged on the water cooling base 19 and is connected with the negative electrode of the power supply. The positive electrode base 14 is arranged on the water cooling base 19 and is connected with the positive electrode of the power supply, and the semi-finished product 18 is arranged on the positive electrode base 14. The blank 18 refers to a bar laser on a stack of lasers during the test 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 spatially separated. The bars 17 are mounted at the front end of the semi-finished product 18, the number of bars 17 being the same as the number of semi-finished products 18. In one example, the blank 18 is integrally mounted to the positive housing 14. The negative electrode pressing block 15 is hinged with the negative electrode seat 13, and when the negative electrode pressing block 15 is pressed down, one end of the negative electrode pressing block 15 far away from the negative electrode seat 13 is contacted with the positive electrode seat 14, so that the 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 the negative electrode compact 15 is fixed by a fastener 16 when the bar 17 needs to be supplied with power. In one example, the semi-finished product 18 has a microfluidic channel, and the water cooling seat 19 has a fluid channel therein, and the fluid channel is in communication with the microfluidic channel to provide heat dissipation to the semi-finished product 18.
In some embodiments, as shown in connection with 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 screw 26. The slide table base 21 is provided with a slide rail 27. The sliding table 23 is in sliding connection with the sliding way 27, and the bottom of the sliding table 23 is in threaded connection with the lead screw 26. The connector 25 is used for receiving a command to rotate the motor 24. 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, the slide table base 21 is further provided with an upper cover 22, and the upper cover 22 plays a role in dust prevention. The embodiment can control the moving distance of the bar by utilizing the motor to be static, so as to realize semi-automatic test.
In some embodiments, as shown in connection with fig. 2, 3 and 5, the adjustment unit 3 comprises a six-dimensional optical adjustment stage and an extension arm 11. The six-dimensional optical adjustment platform includes 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 lateral adjustment unit 118. The yaw angle adjustment unit 113, pitch angle adjustment unit 114, roll angle adjustment unit 115 are used for adjustment of the euler angle of the six-dimensional optical adjustment platform. The vertical adjustment unit 116, the longitudinal adjustment unit 117 and the transverse adjustment unit 118 are used for adjustment of the spatial coordinates of the six-dimensional optical adjustment platform in the three axial directions. The six-dimensional optical adjustment platform realizes the 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. Alternatively, one end of the extension arm 11 is connected to the yaw angle adjustment unit 113. The other end of the extension arm 11 and the fast axis collimating lens can be connected in a cementing, detachable, suction mode and the like. The fast axis collimator lens is exchangeable in order to adapt to the optical properties of different types of bars. In order to enhance the convenience of replacing the fast axis collimator lens, in one embodiment, the extension arm 11 is provided with a suction nozzle 119 at the end near the fast axis collimator lens. The suction nozzle 119 generates negative pressure to suck the fast axis collimating lens, and when the fast axis collimating lens needs to be replaced, the suction nozzle 119 stops sucking and the fast axis collimating lens is replaced by a proper fast axis collimating lens. To avoid the extension arm 11 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 connecting arm 111 has a hollow structure, and one end of the first connecting 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 angle with the first connecting arm 111, so as to avoid blocking the beam emitted from the bar.
In some embodiments, as shown in connection with fig. 1 and 2, the device for testing the packaging performance of the bar further comprises 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 is used for monitoring whether the light emitting point of the light emitting surface of the bar 17 emits light or not and whether the fast axis collimating lens is assembled or not in place from a visual angle; the second image capturing unit 5 is disposed on the other side of the beam emitted from the bar 17, and is used for monitoring whether the light emitting point of the light emitting surface of the bar 17 emits light or not and whether the fast axis collimating lens is installed or not in place from another view angle. The first camera shooting unit 4 and the second camera shooting unit 5 can observe the condition of the single-bar light-emitting cavity surface, and rapidly identify the non-bright luminous point of the single-bar failure.
In some embodiments, as shown in connection with fig. 1 and 2, the test unit of the device for testing the performance of the bar package comprises a slow axis collimator lens 6, a beam splitter 8, an integrating sphere 9 and an imaging unit 10. Wherein: the slow axis collimator lens 6 is used for the slow axis collimation of the light beam passing through the fast axis collimator lens. The beam splitter 8 is used to split the light beam passing through the slow axis collimator lens 6 into a first light beam and a second light beam. The integrating sphere 9 is used to receive the first light beam and to test the power, wavelength, half-width and 90% energy of the bar 17. The imaging unit 10 is configured to receive the second light beam, and to test the near field spot smile value and the far field spot divergence angle of the bar.
In one example, beam splitter 8 splits the beam emitted from the bar at a power of 1:1 so that the electrical and optical performance parameters of the bar can be tested simultaneously, respectively, without causing ghosting or test deviations.
In one example, 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. 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, and the bar powers P1 and P1/P are measured to obtain the polarization degree of the bar.
In one example, the imaging unit 10 includes a slider 101, a slide rail mount 102, a first support frame 103, a lens barrel 104, and a CCD (charge coupled device) module 105. Wherein the slide rail seat 102 is fixed on the base 12. The slider 101 is slidably connected to the slide rail holder 102. The first support 103 is provided 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 best, the smile value of the near-field test light spot is accurately identified, and the near-field test light spot is moved to the divergence angle of the far-field accurate test light spot.
In addition, the slow axis collimator lens 6 is disposed on the second support 61, the polarizing plate 7 is disposed on the third support 71, the spectroscope 8 is disposed on the fourth support 81, and the integrating sphere 9 is disposed on the fifth support 91. The positions and the heights of the supporting frames can be designed according to actual needs, and the building requirements of different optical test platforms are met.
With the above object in mind, in a second aspect of embodiments of the present invention, a method for testing performance of a bar package is provided, and an apparatus for testing performance of a bar package according to the first aspect is provided. The implementation flow of the method is as follows, referring to fig. 1-7:
in step S102, a plurality of bars 17 are mounted on the mounting unit 1 side by side in the first direction.
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 in the prior art are avoided, and the test time is saved.
In step S104, the fast axis collimator lens is installed by the adjusting unit 3, wherein the fast axis collimator 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 adjusting unit 3 is adjusted by the six-dimensional optical adjustment platform, and the adjustment accuracy is high.
Step S106, the photoelectric parameters of the bar 17 to be tested are tested by using the testing unit, and the mounting unit 1 is driven by the displacement unit 2 to move along the first direction, 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 bar 17 tests on the mounting unit are completed.
In this embodiment, the displacement unit 2 adopts the electric sliding table that motor and lead screw constitute, can be through the automatic accurate displacement distance of control installation unit once of industrial computer, ensures that the play plain noodles of waiting the test bar is accurate relative with fast axis collimating lens, reduces adjustment time, raises the efficiency.
The method for testing the packaging performance of the bar according to the embodiment can achieve the same or similar effects as the corresponding embodiment of any device.
It should be noted that in the description of the present invention, the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. Furthermore, in the description of the present invention, unless otherwise indicated, the meaning of "a plurality" is two or more.
In the present invention, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; may be mechanically connected, may be electrically connected or may be in communication with each other; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to the specific circumstances.
In the present invention, unless expressly stated or limited otherwise, a first feature "up" or "down" a second feature may be the first and second features in direct contact, or the first and second features in indirect contact via an intervening medium. Moreover, a first feature being "above," "over" and "on" a second feature may be a first feature being directly above or obliquely above the second feature, or simply indicating that the first feature is level higher than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely below the second feature, or simply indicating that the first feature is less level than the second feature.
In the description of the present invention, the azimuth or positional relationship indicated by the terms "left", "right", "front", "rear", etc., are based on the azimuth or positional relationship shown in the drawings, are merely for convenience of description of the present invention and to simplify the description, and do not indicate or imply that the apparatus or element referred to must have a specific azimuth, be constructed and operated in a specific azimuth, 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 further 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 of the present specification, a description referring to terms "one embodiment," "some embodiments," "examples," "specific examples," or "some examples," etc., means 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 present invention. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
While embodiments of the present invention have been shown and described above, it will be understood that the above embodiments are illustrative and not to be construed as limiting the invention, and that variations, modifications, alternatives and variations may be made to the above embodiments by one of ordinary skill in the art within the scope of the invention.
Claims (9)
1. An apparatus for testing the performance of a bar package comprising:
the mounting unit (1) is provided with a plurality of detachable bars (17) side by side along a first direction;
a displacement unit (2), the displacement unit (2) being slidably connected with the mounting unit (1), the displacement unit (2) being adapted to drive the mounting unit (1) to move in the first direction;
the adjusting unit (3) is used for adjusting the position of the 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;
a test unit for shaping and splitting the beam passing through the fast axis collimating lens, for testing the opto-electronic parameters of the bar (17);
the mounting unit (1) specifically comprises:
a bottom plate (19);
the water cooling seat (20) is arranged on the bottom plate (19);
the negative electrode seat (13) is arranged on the water cooling seat (20) and is connected with the negative electrode of the power supply;
the positive electrode base (14) is arranged on the water cooling base (20) and is connected with the positive electrode of the power supply, a semi-finished product (18) is arranged on the positive electrode base (14), the bars (17) are arranged 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);
the negative electrode pressing block (15) is hinged with the negative electrode base (13), and the negative electrode pressing block (15) is used for supplying power to the negative electrode of the semi-finished product (18) when the negative electrode pressing block is pressed down.
2. Device for testing the packaging properties of bars according to claim 1, characterized in that the displacement unit (2) comprises:
a motor (24), wherein an output shaft of the motor (24) is connected with a lead screw (26);
a sliding table base (21), wherein a sliding way (27) is arranged on the sliding table base (21);
the sliding table (23) is in sliding connection with the sliding way (27), and the bottom of the sliding table (23) is in threaded connection with the screw rod (26);
and the connector (25) is used for receiving the instruction and enabling the motor (24) to rotate according to the instruction.
3. Device for testing the packaging properties of bars according to claim 1, characterized in that the regulating unit (3) comprises:
a six-dimensional optical adjustment platform;
the optical system comprises an extension arm (11), wherein one end of the extension arm (11) is connected with one end of the six-dimensional optical adjustment platform, and the other end of the extension arm (11) is fixed with the fast axis collimating lens.
4. The apparatus for testing the performance of a bar package according to claim 1, wherein the test unit comprises:
a slow axis collimating lens (6) for slow axis collimation 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 collimator lens (6) into a first light beam and a second light beam,
-an integrating sphere (9) for receiving said first light beam, testing the power, wavelength, half-width and 90% energy of said bar (17);
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.
5. The device for testing the packaging properties of bars according to claim 4, characterized in that the testing unit further comprises a polarizer (7), which polarizer (7) is used for producing polarized light for the light beam passing through the slow axis collimator lens (6).
6. The device for testing the packaging properties of bars according to claim 5, characterized in that the imaging unit (10) comprises:
a slide rail seat (102);
a slide block (101) slidably connected with the slide rail seat (102);
the first support frame (103) is arranged on the sliding block (101);
a lens barrel (104) provided on the first support frame (103);
and a CCD module (105) connected to the lens barrel (104).
7. A device for testing the packaging properties of bars according to claim 3, characterized in that said extension arm (11) comprises:
the first connecting arm (111), the first connecting arm (111) is of a hollow structure, and one end of the first connecting arm (111) is provided with 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 adjustment platform.
8. The apparatus for testing the performance of a bar package of claim 1, further comprising:
the first camera shooting 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 or not and whether the fast axis collimating lens is assembled or not in place from one view angle;
the second image pickup unit (5) is arranged on the other 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 or not and whether the fast axis collimating lens is assembled or not in place from another view angle.
9. A method of testing the performance of a bar package, characterized in that the device for testing the performance of a bar package according to any one of claims 1-8 is implemented on the basis of:
-mounting a number of said bars (17) side by side on said mounting unit (1) along said first direction;
the fast axis collimating lens is assembled and 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;
the photoelectric parameters of the bars (17) to be tested are tested by using the testing unit, and the mounting unit (1) is driven by the displacement unit (2) to move along the first direction, so that the fast axis collimating lens is positioned in front of the light emitting surface of the next bars (17) to be tested; this step is repeated until all of the bar (17) tests are completed.
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| Application Number | Priority Date | Filing Date | Title |
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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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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211442666.3A CN115824588B (en) | 2022-11-16 | 2022-11-16 | Device and method for testing packaging performance of bar |
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| CN115824588A CN115824588A (en) | 2023-03-21 |
| CN115824588B true CN115824588B (en) | 2023-06-27 |
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Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| 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 |
| CN105784330B (en) * | 2016-02-29 | 2018-06-29 | 中国科学院长春光学精密机械与物理研究所 | Semiconductor laser bar unit consistency detection instrument and its detection method |
| 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 |
| CN112595498B (en) * | 2021-03-04 | 2021-06-18 | 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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