CN114279680B - Universal adjustable rapid plugging PER testing device and installation and use method - Google Patents
Universal adjustable rapid plugging PER testing device and installation and use method Download PDFInfo
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- CN114279680B CN114279680B CN202111525985.6A CN202111525985A CN114279680B CN 114279680 B CN114279680 B CN 114279680B CN 202111525985 A CN202111525985 A CN 202111525985A CN 114279680 B CN114279680 B CN 114279680B
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Abstract
The invention discloses a universal adjustable rapid plugging PER testing device and an installation and use method thereof, wherein the testing device comprises a collimator, a polarization isolator, an optical device fixing sleeve and an adjustable rotating seat; the collimator comprises a metal sleeve, a positioning ceramic ferrule, a limiting ceramic sleeve and a collimating lens, and the collimator and the polarization isolator are respectively sleeved in a left end hole and a right end hole of the optical device fixing sleeve; the adjustable rotary seat is rotatably connected to the outer side of the optical device fixing sleeve, and a product plugging hole is formed in the right end of the adjustable rotary seat. When the device is used for testing a product, a light source is transmitted through the optical fiber in the positioning ceramic insert core, becomes parallel light after passing through the collimating lens, forms linearly polarized light in one direction after being injected into the polarization isolator, and enables the polarization direction of the linearly polarized light to be parallel to the slow axis direction of the PM polarization-maintaining product through the fine-tuning rotary adjustable rotary seat, so that the high-efficiency, high-yield and high-precision test is realized, and the test difficulty and the manufacturing cost are greatly reduced.
Description
Technical Field
The invention relates to the technical field of testing of polarization extinction ratio of PER (Per efficiency) of PM (particulate matter) polarization maintaining products, in particular to a universal adjustable and quick plugging PER testing device and an installation and use method thereof.
Background
The traditional PER polarization extinction ratio testing device is difficult to realize the testing of non-standard PM polarization maintaining products (such as short fiber PM-FA products, special components and the like) in the practical testing operation process. However, the end face damage of a test inserting core or the end face damage of a test product is often caused by butt joint easily in the externally connected PM jumper contact test, and the accuracy of the test value of the PER polarization extinction ratio of the PM polarization-maintaining product is interfered by the polarization extinction ratio of the PER of the externally connected PM jumper, so that the accuracy of the test of the PER polarization extinction ratio of the test product is poor.
Disclosure of Invention
In order to solve the problems that the conventional PER polarization extinction ratio testing device in the background art is difficult to test nonstandard PM polarization maintaining products (such as short fiber PM-FA products and special components), when the conventional PER polarization extinction ratio testing device tests the short fiber products, a PM jumper needs to be externally connected to carry out contact type testing, the end face of the tested product is easily damaged, and the testing result is interfered by the PER polarization extinction ratio of the externally connected PM jumper, so that the testing accuracy is poor, the invention provides a general adjustable rapid plugging PER testing device which comprises:
the utility model provides a quick plug PER testing arrangement with adjustable general type which characterized in that: the device comprises a collimator, a polarization isolator, an isolator limiting glass tube, an optical device fixing sleeve, an adjustable rotary seat, a limiting sleeve and a test bracket;
the collimator comprises a metal sleeve, a positioning ceramic ferrule, a limiting ceramic sleeve and a collimating lens, wherein the limiting ceramic sleeve is sleeved in the metal sleeve, an optical fiber is inserted in the middle inside the positioning ceramic ferrule, the positioning ceramic ferrule is inserted in the limiting ceramic sleeve, the right end face of the positioning ceramic ferrule is an inclined face which is inclined from the upper right to the lower left, the radial included angle between the inclined face and the positioning ceramic ferrule is 8-10 degrees, the collimating lens is sleeved in an inner hole at the right end of the metal sleeve, one end provided with a raised head extends out of the metal sleeve, and the left end face of the collimating lens is parallel to the right end face of the positioning ceramic ferrule and is arranged at a certain interval, so that the coupling light spot of the collimator reaches 95-105 mu m;
the optical device fixing sleeve comprises a sleeve portion and a screw portion which are coaxially arranged, the middle of the outer circular surface of the sleeve portion is installed at the upper end of the test support, the screw portion is arranged on the right side of the sleeve portion, the outer diameter of the screw portion is smaller than that of the sleeve portion, external threads are arranged on the outer side surface of the right end of the screw portion, coaxial stepped holes which are large in left and small in right are formed in the optical device fixing sleeve, and the right end of the metal sleeve is sleeved in a hole at the end of a step Kong Zuo and is fixedly connected with the same;
the polarization isolator adopts a mini-type polarization isolator and is packaged in an isolator limiting glass tube, and the isolator limiting glass tube is packaged in a hole Kong Youduan;
the adjustable rotating seat comprises a sawtooth type rotating head and a product fixing sleeve which are coaxially arranged and fixedly connected, a mounting hole is formed in the left end in the sawtooth type rotating head, a first counter bore is formed in the right end of the sawtooth type rotating head, the mounting hole is sleeved on the outer circular surface of the left end of the screw part and is in clearance fit with the outer circular surface of the left end of the screw part, the clearance fit tolerance is set to be 20-100 mu m, the product fixing sleeve is arranged at the right end of the sawtooth type rotating head, the outer diameter of the product fixing sleeve is smaller than the outer diameter of the sawtooth type rotating head, a second counter bore is formed in the left end of the inner part of the product fixing sleeve, a product plugging hole is formed in the right end of the product fixing sleeve, the shape and the size of the product plugging hole are matched with a tested product inserting core, the first counter bore is consistent with the diameter of the second counter bore, and the mounting hole, the first counter bore, the second counter bore and the product plugging hole are coaxial;
an internal thread hole is formed in the limiting sleeve and is in threaded connection with the external thread of the screw rod part, and a hexagonal head is arranged at the right end of the limiting sleeve;
after the test product inserting core is inserted into the product inserting and pulling hole, the sawtooth type rotating head is rotated to drive the test product inserting core to rotate together, the slow axis direction of the test product is changed, the direction of linearly polarized light is parallel to the slow axis direction, and the polarization extinction ratio of the test product reaches the maximum value.
Preferably, the fixed cover of product passes through laser welding fixed connection with the zigzag rotating head, is equipped with two screw through-holes that are centrosymmetric setting on the outer disc of the fixed cover left side of product, all is equipped with the locking bolt in this screw through-hole, adjustable roating seat is equipped with a plurality ofly, and the product plug hole shape and the size of a plurality of adjustable roating seats cooperate with the lock pin of different types of test product respectively, are used for the PER test of different types of product respectively, and when the adjustable roating seat of difference was changed, locking bolt's end top was held and is locked on the outer disc of spacing sleeve, and the zigzag rotating head can be dismantled adjustable roating seat and spacing sleeve together and get off to change.
Preferably, the fixed cover left end of product is equipped with the ring flange, be equipped with a plurality of through-holes that are the circumference equipartition on the ring flange, correspond the position with the through-hole on the zigzag rotating head right-hand member face and all be equipped with the internal thread hole, the ring flange passes through-hole and internal thread hole threaded connection through a plurality of construction bolt, with fixed cover of product and zigzag rotating head fixed connection, the fixed cover of product is equipped with a plurality ofly, and the product plug hole shape and the size of the fixed cover of a plurality of products cooperate with the lock pin of different kinds of test products respectively, are used for the PER test of different kinds of products respectively.
Preferably, the polarization isolator adopts a bipolar polarization isolator, and comprises a magnetic ring, a polarizer, a 45-degree Faraday rotator and an analyzer, wherein the magnetic ring is sleeved in the hole Kong Youduan and is fixedly connected with the step hole, and the polarizer, the 45-degree Faraday rotator and the analyzer are sequentially packaged in the magnetic ring from left to right.
Preferably, the outer disc middle part of metal sleeve is equipped with the flange that extends outwards, and the fixed sleeve outside of optical equipment is located to the flange, turn right from a left side in the metal sleeve and be equipped with first hole, second hole, third hole and the fourth hole of coaxial setting, first hole, second hole, third hole aperture increase in proper order, fourth hole aperture cooperatees with the collimating lens external diameter, and collimating lens inserts and locates in the fourth hole, spacing ceramic bushing cover is located in the second hole, and the tip links to each other with second hole left end face.
Preferably, the test support includes base, pillar and clamp, pillar fixed connection is in the base top, clamp fixed connection is in the pillar upper end, the fixed telescopic sleeve portion of optical equipment is established the cover and is located in this clamp, the clamp is established to the square frame shape, be equipped with the open slot in the middle of the clamp upper side wall, be equipped with the screw counter bore in the left side wall of open slot, be equipped with the screw mounting hole at the bottom of the screw counter bore, correspond the position with the screw mounting hole in the right side wall of open slot and be equipped with the screw hole, the cover is equipped with the screw in the screw counter bore, and this screw passes screw mounting hole and right side wall internal thread hole threaded connection, fixes the fixed cover collet chuck fastening of optical equipment.
The invention also provides an installation method of the universal adjustable rapid plugging PER test device, which is characterized by comprising the following steps: the method comprises the following steps:
s1, fixedly connecting a metal sleeve, a limiting ceramic sleeve and a positioning ceramic ferrule in a gluing mode;
s2, inserting a collimating lens into the right end hole of the part fixed in the step S1, injecting an ASE light source from the left end of the metal sleeve, performing light spot coupling by using a light beam analyzer, coupling to a coupling light spot required by testing by adjusting the gap between the positioning ceramic ferrule and the collimating lens, and fixing the collimating lens and the metal sleeve by using a gluing mode to obtain a collimator;
s3, after the polarization isolator and the limiting glass tube are bonded and fixed by glue, the polarization isolator and the limiting glass tube are placed into a step Kong Youduan hole of the optical device fixing sleeve and are packaged and fixed by the glue;
s4, mounting the optical equipment fixing sleeve in the step S3 on a test support, sleeving the sawtooth type rotating head at the left end of a screw rod part of the optical equipment fixing sleeve, positioning the sawtooth type rotating head by sleeving a limiting sleeve on external threads at the right end of the screw rod part, butting a product fixing sleeve with the sawtooth type rotating head to ensure that a product plugging hole at the right end of the product fixing sleeve is coaxial with the optical equipment fixing sleeve, and fixedly connecting and assembling the product plugging hole and the optical equipment fixing sleeve in a laser welding or bolt mounting mode to form an adjustable rotating base;
s5, inserting one end, provided with a collimating lens, of the collimator obtained in the step S2 into a left end hole of the optical equipment fixing sleeve, selecting a standard product, inserting an insertion core of the standard product into a product insertion and extraction hole, emitting a light source from an ASE light source from the left end of the metal sleeve, finely adjusting the rotary adjustable rotary base, coupling the optical power of the product insertion core to the maximum value by using an optical power meter, and then fixedly connecting the collimator with the optical equipment fixing sleeve by using a cementing or laser welding mode.
The invention also provides a using method of the universal adjustable quick plugging PER testing device, which is characterized in that: the method comprises the following steps:
b1, inserting a core insert of a tested product into a product plugging hole, emitting a light source by an ASE light source to be injected from the left end of the metal sleeve, transmitting the light source through an optical fiber in the positioning ceramic core insert, butting the optical fiber with a collimator assembly, converting the light into parallel light after passing through a collimating lens, forming linearly polarized light in one direction after being injected into a polarization isolator, and accurately injecting light spots of the linearly polarized light into an optical fiber core of the tested product through a rotary adjustable rotating seat;
b2, finely adjusting the rotary adjustable rotary seat to enable the polarization direction of linearly polarized light to be parallel to the slow axis direction of the tested product, and then butting the PER tester with the other end of the tested product for testing to obtain accurate testing values of power and PER polarization extinction ratio.
Furthermore, for a general adjustable rapid plugging PER testing device fixedly connected with the product fixing sleeve and the sawtooth type rotating head through laser welding, when the device works, two locking bolts need to be loosened before the adjustable rotating base is rotated, so that the ends of the locking bolts leave the outer circular surface of the limiting sleeve;
when a test product is replaced, two locking bolts are symmetrically screwed down, the end heads of the locking bolts are tightly pressed against the outer circular surface of the limiting sleeve, the limiting sleeve and the adjustable rotary seat are integrated, the adjustable rotary seat is rotated to enable the adjustable rotary seat and the limiting sleeve to be detached from the optical equipment fixing sleeve together, the other two locking bolts on the adjustable rotary seat matched with the replaced test product are symmetrically screwed down, and then the adjustable rotary seat and the screw portion of the optical equipment fixing sleeve are sleeved in place and fixed.
Furthermore, to the quick plug PER testing arrangement with adjustable product fixed cover and zigzag rotating head pass through the general type of ring flange and construction bolt fixed connection, when changing the test product, all construction bolts need to be pulled down, pull down the fixed cover of product, change another and the test product matched with product fixed cover of change, reinstall with construction bolt, guarantee that product mouthful plug hole is coaxial with optical equipment fixed sleeve, then all construction bolts of locking fasten.
Compared with the prior art, the invention has the beneficial effects that: 1) When the device is used for testing a product, a light source is transmitted through the optical fiber in the positioning ceramic insert core, becomes parallel light after passing through the collimating lens, forms linearly polarized light in one direction after entering the polarization isolator, and enables the polarization direction of the linearly polarized light to be parallel to the slow axis direction of the PM polarization maintaining product through finely adjusting the rotary adjustable rotary seat, so that the high-efficiency, high-yield and high-precision test is realized, and the test difficulty and the manufacturing cost are greatly reduced; 2) By arranging the collimator, the test light source is emitted into the test product through the collimator, and as the collimation light spot of the collimator can be coupled to 95-105 microns, the light power emitted into the test product is high, the coupling tolerance between the light power and the test product is large, and the precision of PER test data is improved; 3) The optical equipment fixing sleeve, the limiting sleeve and the adjustable rotating seat are arranged, so that the light source emergent light and a test product keep the concentricity with the same height, and the precision of PER test data is improved; 4) The mini-type bipolar polarization isolator is arranged in the optical equipment fixing sleeve, so that the whole device is relatively small, and is suitable for testing short fiber polarization-maintaining products, non-standard polarization-maintaining products and the like which cannot be tested by traditional testing equipment, the PER polarization extinction ratio of input light converted from non-polarized light to linearly polarized light can reach more than 40dB, the precision of the polarization state of light before the input PM product is improved by more than 10dB compared with the prior art, and the measurement error of the polarization-maintaining type product is reduced; 5) By arranging the adjustable rotating seat, the slow axis direction of the PM polarization maintaining product can be changed through fine adjustment rotation, so that the polarization direction of incident light is ensured to be parallel to the slow axis direction, and the polarization extinction ratio of the PER reaches the maximum value; 6) The product insertion aperture can be designed according to the appearance and size of different test products, and the quick switching of different test products can be ensured as long as the adjustable rotary seat or the product fixing sleeve is replaced, so that the universality of the test device on products of all polarization maintaining types is ensured, and the problem of the damage of the end face of the product, caused by the non-universal type of the traditional PER polarization extinction ratio test device on different PM polarization maintaining products and the product in the test process, is effectively solved.
Drawings
FIG. 1 is a schematic structural diagram of an embodiment of the present invention;
FIG. 2 is a schematic diagram of a collimator according to an embodiment of the present invention;
FIG. 3 is a schematic view of a metal sleeve according to an embodiment of the present invention;
FIG. 4 is a schematic view of an optical fixture fixing sleeve, a limiting sleeve, and a polarization isolator according to an embodiment of the present invention;
FIG. 5 is a schematic diagram of a polarization isolator and a spacing glass tube structure of the isolator according to an embodiment of the present invention;
FIG. 6 is a schematic view of an external structure of an adjustable rotating base according to an embodiment of the present invention;
FIG. 7 is a schematic view of an internal structure of an adjustable rotary seat according to an embodiment of the present invention;
FIG. 8 is a schematic view of an optical fixture mounting sleeve and a test fixture mounting structure according to an embodiment of the present invention;
FIG. 9 is a schematic structural diagram according to a second embodiment of the present invention;
fig. 10 is a schematic structural view of a second adjustable rotating base according to an embodiment of the present invention.
In the figure: 1. metal sleeve, 101, first hole, 102, second hole, 103, third hole, 104, fourth hole, 105, flange, 2, positioning ceramic ferrule, 3, limiting ceramic bushing, 4, collimating lens, 5, optical device fixing sleeve, 501, sleeve portion, 502, screw portion, 503, stepped hole, 6, adjustable rotary seat, 601, sawtooth rotary head, 6011, mounting hole, 6012, first counter bore, 602, product fixing sleeve, 6021, second counter bore, 6022, product plugging hole, 6023, threaded through hole, 602', product fixing sleeve, 6024', flange, 603, mounting bolt, 7, limiting sleeve, 701, hexagonal head, 8, isolator limiting glass tube, 9, polarization isolator, 901, test bracket, 902, polarizer, 903, 45 ° second rotator, screw 904, polarization analyzer, 10, test bracket, 1001, base, 1002, pillar, 1003, clamp, 1004, counter bore, magnet ring, 1005, screw mounting hole, 1006, 11, 1006, 12, 13, faraday gap, 13, and locking bolt.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.
As shown in fig. 1 to 8, an embodiment of the universal adjustable fast plugging and unplugging PER testing apparatus of the present invention includes a collimator, a polarization isolator 9, an isolator limiting glass tube 8, an optical device fixing sleeve 5, an adjustable rotating base 6, a limiting sleeve 7, and a testing support 10;
the collimator comprises a metal sleeve 1, a positioning ceramic ferrule 2, a limiting ceramic sleeve 3 and a collimating lens 4, wherein the limiting ceramic sleeve 3 is sleeved in the metal sleeve 1, an optical fiber is inserted in the middle inside the positioning ceramic ferrule 2, the positioning ceramic ferrule 2 is inserted in the limiting ceramic sleeve 3, the right end face of the positioning ceramic ferrule is an inclined face which is inclined from the upper right to the lower left, the radial included angle alpha between the inclined face and the positioning ceramic ferrule 2 is set to be 8-10 degrees, the collimating lens 4 is sleeved in an inner hole at the right end of the metal sleeve 1, one end provided with a raised head extends out of the metal sleeve 1, the left end face of the collimating lens 4 is parallel to the right end face of the positioning ceramic ferrule 2 and is arranged at a certain interval 11, and the coupling light spot of the collimator reaches 95-105 mu m; the 8-10 degree inclined plane can prevent the interference of the return light reflection to the light source.
The collimator provided by the invention has the following functions: the test light source is emitted into the test product through the collimator, and the collimated light spot of the collimator can be coupled to 95-105 mu m, so that the light power emitted into the test product is high, the coupling tolerance between the light power and the test product is high, and the precision of PER test data is improved.
The optical device fixing sleeve 5 comprises a sleeve portion 501 and a screw portion 502 which are coaxially arranged, the middle of the outer circular surface of the sleeve portion 501 is installed at the upper end of the test support 10, the screw portion 502 is arranged on the right side of the sleeve portion 501, the outer diameter of the screw portion is smaller than that of the sleeve portion 501, external threads are arranged on the outer side surface of the right end of the screw portion, a coaxial stepped hole 503 with a large left end and a small right end is arranged inside the optical device fixing sleeve 5, and the right end of the metal sleeve 1 is sleeved in the hole at the left end of the stepped hole 503 and fixedly connected with the stepped hole;
the polarization isolator 9 adopts a mini-type polarization isolator and is packaged in the isolator limiting glass tube 8, and the isolator limiting glass tube 8 is packaged in the right end hole of the stepped hole 503;
the adjustable rotating base 6 comprises a sawtooth type rotating head 601 and a product fixing sleeve 602 which are coaxially arranged and fixedly connected, a mounting hole 6011 is arranged at the left end in the sawtooth type rotating head 601, a first counter bore 6012 is arranged at the right end, the mounting hole 6011 is sleeved on the outer circular surface of the left end of the screw part 502 and is in clearance fit with the outer circular surface of the left end of the screw part 502, the clearance fit tolerance is set to be 20-100 micrometers, the product fixing sleeve 602 is arranged at the right end of the sawtooth type rotating head 601, the outer diameter of the product fixing sleeve is smaller than the outer diameter of the sawtooth type rotating head 601, a second counter bore 6021 is arranged at the left end in the product fixing sleeve, a product plugging hole 6022 is arranged at the right end, the shape and the size of the product plugging hole 6022 are matched with a test product ferrule, the first counter bore 6012 is consistent with the diameter of the second counter bore 6021, and the first counter bore 6012, the second counter bore 6021 and the product plugging hole 6022 are coaxial;
an internal thread hole is formed in the limiting sleeve 7 and is in threaded connection with the external thread of the screw rod part 502, and a hexagonal head 701 is arranged at the right end of the limiting sleeve 7;
after the test product insert core is inserted into the product plugging hole 6022, the sawtooth type rotating head 601 is rotated to drive the test product insert core to rotate together, the slow axis direction of the test product is changed, the direction of linearly polarized light is parallel to the slow axis direction, and the polarization extinction ratio of the test product reaches the maximum value.
When the testing device is used for testing a product, a light source is transmitted through the optical fiber in the positioning ceramic ferrule 2, becomes parallel light after passing through the collimating lens 4, forms linearly polarized light in one direction after being injected into the polarization isolator 9, and enables the polarization direction of the linearly polarized light to be parallel to the slow axis direction of a PM polarization-maintaining product through the fine-tuning rotation adjustable rotating seat 6, so that the high-efficiency, high-yield and high-precision test is realized, and the test difficulty and the manufacturing cost are greatly reduced.
As shown in fig. 1, 6 and 7, preferably, the product fixing sleeve 602 is fixedly connected with the sawtooth type rotating head 601 through laser welding, two thread through holes 6023 which are arranged in central symmetry are arranged on the outer circumferential surface of the left side of the product fixing sleeve 602, and locking bolts 13 are arranged in the thread through holes 6023; the adjustable rotating base 6 is provided with a plurality of adjustable rotating base 6, the shapes and sizes of the product plugging holes 6022 of the adjustable rotating base 6 are respectively matched with the insertion cores of different types of test products and are respectively used for testing the PER polarization extinction ratios of the different types of products, when the adjustable rotating base 6 is changed, the end head of the locking bolt 13 is propped against the outer circular surface of the limiting sleeve 7 to be locked, and the adjustable rotating base 6 and the limiting sleeve 7 can be detached together to be changed by rotating the sawtooth type rotating head 601.
The adjustable rotating seat 6 is arranged, so that the slow axis direction of a PM polarization maintaining product can be changed through fine adjustment rotation, the polarization direction of incident light is ensured to be parallel to the slow axis direction, and the polarization extinction ratio of PER reaches the maximum value; and the product insertion aperture 6022 can be designed according to the shapes and sizes of different test products, and as long as the adjustable rotary seat 6 and the limit sleeve 7 arranged in the adjustable rotary seat are replaced, the quick switching of different test products can be ensured, so that the universality of the testing device on all polarization-maintaining type products is ensured.
As shown in fig. 5, the polarization isolator 9 preferably adopts a bipolar polarization isolator, and includes a magnetic ring 901, a polarizer 902, a 45 ° faraday rotator 903, and an analyzer 904, the magnetic ring 901 is sleeved in the right end hole of the stepped hole 503 and is fixedly connected to the stepped hole 503, and the polarizer 902, the 45 ° faraday rotator 903, and the analyzer 904 are sequentially packaged in the magnetic ring 901 from left to right.
The mini-type bipolar polarization isolator 9 is arranged in the optical equipment fixing sleeve 5, so that the whole device is relatively small, and the device is suitable for testing short fiber polarization-maintaining products, nonstandard polarization-maintaining products and the like which cannot be tested by traditional testing equipment, the PER polarization extinction ratio of input light converted from non-polarized light into linearly polarized light can reach more than 40dB, the precision of the polarization state of the light before the PM polarization-maintaining products are input is improved by more than 10dB compared with the traditional technology, and the measurement error of the polarization-maintaining products is greatly reduced.
As shown in fig. 2 and 3, preferably, a flange 105 extending outward is disposed in the middle of the outer circumferential surface of the metal sleeve 1, the flange 105 is disposed outside the optical device fixing sleeve 5, a first hole 101, a second hole 102, a third hole 103 and a fourth hole 104 are coaxially disposed in the metal sleeve 1 from left to right, the diameters of the first hole 101, the second hole 102 and the third hole 103 are sequentially increased, the diameter of the fourth hole 104 is matched with the outer diameter of the collimating lens 4, the collimating lens 4 is inserted into the fourth hole 104, the limiting ceramic bushing 3 is disposed in the second hole 102, and the end portion of the limiting ceramic bushing is connected to the left end surface of the second hole 102.
As shown in fig. 8, preferably, the test holder 10 includes a base 1001, a support 1002, and a clamp 1003, the support 1002 is fixedly connected above the base 1001, the clamp 1003 is fixedly connected to the upper end of the support 1002, the sleeve portion 501 of the optical device fixing sleeve 5 is sleeved in the clamp 1003, the clamp 1003 is square, an open slot is provided in the middle of the upper side wall of the clamp 1003, a screw counterbore 1004 is provided in the left side wall of the open slot, a screw mounting hole 1005 is provided at the bottom of the screw counterbore 1004, a screw hole 1006 is provided in the right side wall of the open slot at a position corresponding to the screw mounting hole 1005, a screw 12 is sleeved in the screw counterbore 1004, and the screw 12 passes through the screw mounting hole 1005 and is in threaded connection with the screw mounting hole 1006 in the right side wall, so as to clamp and fix the optical device fixing sleeve 5.
As shown in fig. 9 and 10, a second embodiment of a general adjustable fast pluggable PER testing apparatus of the present invention is substantially the same as the first embodiment, except that: the left end of the product fixing sleeve 602 'is provided with a flange plate 6024', the flange plate 6024 'is provided with a plurality of through holes which are uniformly distributed circumferentially, the right end surface of the sawtooth type rotating head 601 is provided with an internal thread hole corresponding to the through holes, the flange plate 603 penetrates through the through holes through a plurality of mounting bolts 603 to be in threaded connection with the internal thread hole, the product fixing sleeve 602' is fixedly connected with the sawtooth type rotating head 601, the product fixing sleeve 602 'is provided with a plurality of product plugging holes 6022, the shapes and sizes of the product plugging holes 6022 of the product fixing sleeves 602' are respectively matched with the inserting cores of different types of test products, and the product plugging holes 6022 are respectively used for testing the PER polarization extinction ratios of different types of products.
The installation method of the universal adjustable quick plugging PER testing device provided by the embodiment of the invention comprises the following steps:
s1, fixedly connecting a metal sleeve 1, a limiting ceramic sleeve 3 and a positioning ceramic ferrule 2 in a cementing manner according to the diagram shown in FIG. 2;
s2, inserting a collimating lens 4 into the right end hole of the part fixed in the step S1, injecting an ASE light source from the left end of the metal sleeve 1, performing light spot coupling by using a light beam analyzer, coupling to a coupling light spot (the size of the coupling light spot reaches 95-105 mu m) required by testing by adjusting the gap between the positioning ceramic ferrule 2 and the collimating lens 4, and fixing the collimating lens 4 and the metal sleeve 1 by using a glue fixing mode to obtain a collimator;
s3, after the polarization isolator 9 and the limiting glass tube 8 are bonded and fixed by glue, the polarization isolator is placed into the right end hole of the stepped hole 503 of the optical device fixing sleeve 5 and is packaged and fixed by the glue;
s4, installing the optical equipment fixing sleeve 5 in the step S3 in a clamp 1003 at the upper end of a test support 10, then sleeving the sawtooth type rotating head 601 at the left end of a screw rod part 502 of the optical equipment fixing sleeve 5, positioning the sawtooth type rotating head 601 by sleeving a limiting sleeve 7 on an external thread at the right end of the screw rod part 502, butting a product fixing sleeve 602 or 602 'with the sawtooth type rotating head 601, ensuring that a product plugging hole 6022 at the right end of the product fixing sleeve 602 or 602' is coaxial with the optical equipment fixing sleeve 5, and fixedly connecting and assembling the adjustable rotating base 6 in a laser welding or bolt installation mode;
s5, inserting one end, provided with the collimating lens 4, of the collimator obtained in the step S2 into a left end hole of the optical equipment fixing sleeve 5, selecting a standard product, inserting an insertion core of the standard product into the product inserting and pulling hole 6022, emitting a light source from an ASE light source to inject from the left end of the metal sleeve 1, finely adjusting the rotary adjustable rotary base 6, coupling the optical power of the insertion core of the product to the maximum value by adopting an optical power meter, and then fixedly connecting the collimator with the optical equipment fixing sleeve 5 by adopting a gluing or laser welding mode.
The application method of the universal adjustable quick plugging PER testing device provided by the embodiment of the invention comprises the following steps:
b1, inserting the ferrule of the tested product into the product plugging hole 6022, emitting a light source from the left end of the metal sleeve 1 by using an ASE light source, transmitting the light source through an optical fiber in the positioning ceramic ferrule 2, butting the optical fiber with a collimator assembly, converting the light source into parallel light after passing through a collimating lens 4, forming linearly polarized light in one direction after entering a polarization isolator 9, and accurately entering light spots of the linearly polarized light into an optical fiber core of the test production device through a rotary adjustable rotary seat 6;
b2, finely adjusting the rotary adjustable rotating seat 6 to enable the polarization direction of linearly polarized light to be parallel to the slow axis direction of a tested product, and then butting the PER tester with the other end of the tested product for testing to obtain accurate testing values of power and PER polarization extinction ratio.
Further, for a general adjustable rapid plugging PER testing device in which the product fixing sleeve 602 and the sawtooth type rotating head 601 are fixedly connected by laser welding, when the testing device works, two locking bolts 13 need to be loosened before the adjustable rotating base 6 is rotated, so that the end heads of the locking bolts 13 leave the outer circular surface of the limiting sleeve 7;
when a test product is replaced, the two locking bolts 13 need to be symmetrically screwed down, the end heads of the locking bolts 13 tightly push the outer circular surface of the limiting sleeve 7, the limiting sleeve 7 and the adjustable rotary seat 6 are integrated, the adjustable rotary seat 6 is rotated, the adjustable rotary seat 6 and the limiting sleeve 7 are detached from the optical equipment fixing sleeve 5 together, the two locking bolts 13 on the adjustable rotary seat 6 matched with the replaced test product are symmetrically screwed down, and then the optical equipment fixing sleeve 5 is sleeved with the screw portion 502 in place and fixed.
Further, for a general adjustable rapid plugging PER testing device in which the product fixing sleeve 602 'is fixedly connected with the sawtooth type rotating head 601 through the flange 6024' and the mounting bolts 603, when a test product is replaced, all the mounting bolts 603 need to be detached, the product fixing sleeve 602 'is detached, another product fixing sleeve 602' matched with the replaced test product is replaced, the product fixing sleeve is remounted by the mounting bolts 603, it is ensured that the product hole plugging hole 6022 is coaxial with the optical equipment fixing sleeve 5, and then all the mounting bolts 603 are locked and fastened.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (10)
1. The utility model provides a quick plug PER testing arrangement with adjustable general type which characterized in that: the device comprises a collimator, a polarization isolator, an isolator limiting glass tube, an optical device fixing sleeve, an adjustable rotary seat, a limiting sleeve and a test bracket;
the collimator comprises a metal sleeve, a positioning ceramic ferrule, a limiting ceramic sleeve and a collimating lens, wherein the limiting ceramic sleeve is sleeved in the metal sleeve, an optical fiber is inserted in the middle inside the positioning ceramic ferrule, the positioning ceramic ferrule is inserted in the limiting ceramic sleeve, the right end face of the positioning ceramic ferrule is an inclined face which is inclined from the upper right to the lower left, the radial included angle between the inclined face and the positioning ceramic ferrule is 8-10 degrees, the collimating lens is sleeved in an inner hole at the right end of the metal sleeve, one end provided with a raised head extends out of the metal sleeve, and the left end face of the collimating lens is parallel to the right end face of the positioning ceramic ferrule and is arranged at a certain interval, so that the coupling light spot of the collimator reaches 95-105 mu m;
the optical device fixing sleeve comprises a sleeve portion and a screw portion which are coaxially arranged, the middle of the outer circular surface of the sleeve portion is installed at the upper end of the test support, the screw portion is arranged on the right side of the sleeve portion, the outer diameter of the screw portion is smaller than that of the sleeve portion, external threads are arranged on the outer side surface of the right end of the screw portion, coaxial stepped holes which are large in left and small in right are formed in the optical device fixing sleeve, and the right end of the metal sleeve is sleeved in a hole at the end of a step Kong Zuo and is fixedly connected with the same;
the polarization isolator adopts a mini-type polarization isolator and is packaged in an isolator limiting glass tube, and the isolator limiting glass tube is packaged in a hole Kong Youduan;
the adjustable rotating seat comprises a sawtooth type rotating head and a product fixing sleeve which are coaxially arranged and fixedly connected, wherein a mounting hole is formed in the left end in the sawtooth type rotating head, a first counter bore is formed in the right end of the sawtooth type rotating head, the mounting hole is sleeved on the outer circular surface of the left end of the screw part and is in clearance fit with the outer circular surface of the left end of the screw part, the clearance fit tolerance is set to be 20-100 mu m, the product fixing sleeve is arranged at the right end of the sawtooth type rotating head, the outer diameter of the product fixing sleeve is smaller than the outer diameter of the sawtooth type rotating head, a second counter bore is formed in the left end of the inner part of the product fixing sleeve, a product plugging hole is formed in the right end of the product fixing sleeve, the shape and the size of the product plugging hole are matched with a tested product plugging core, the first counter bore is consistent with the diameter of the second counter bore, and the mounting hole, the first counter bore, the second counter bore and the product plugging hole are coaxial;
an internal thread hole is formed in the limiting sleeve and is in threaded connection with the external thread of the screw rod part, and a hexagonal head is arranged at the right end of the limiting sleeve;
after the test product inserting core is inserted into the product inserting and pulling hole, the sawtooth type rotating head is rotated to drive the test product inserting core to rotate together, the slow axis direction of the test product is changed, the direction of linearly polarized light is parallel to the slow axis direction, and the polarization extinction ratio of the test product reaches the maximum value.
2. The universal adjustable rapid plugging PER testing device as claimed in claim 1, wherein: the fixed cover of product passes through laser welding fixed connection with the zigzag rotating head, is equipped with two screw through-holes that are centrosymmetric setting on the fixed cover left side excircle face of product, all is equipped with locking bolt in this screw through-hole, the roating seat with adjustable is equipped with a plurality ofly, and the product plug hole shape and the size of a plurality of roating seats with adjustable cooperate with the lock pin of different types of test product respectively, is used for the PER test of different types of product respectively, and when the adjustable roating seat of difference was changed, locking bolt's end top was held and is locked on the excircle face of spacing sleeve, and the zigzag rotating head can be dismantled adjustable roating seat and spacing sleeve together and get off to change.
3. The universal adjustable rapid plugging PER testing device as claimed in claim 1, wherein: the fixed cover left end of product is equipped with the ring flange, be equipped with a plurality of through-holes that are the circumference equipartition on the ring flange, correspond the position with the through-hole on the zigzag rotating head right-hand member face and all be equipped with the internal thread hole, the ring flange passes through-hole and internal thread hole threaded connection through a plurality of construction bolt, with the fixed cover of product and zigzag rotating head fixed connection, the fixed cover of product is equipped with a plurality ofly, and the product plug hole shape and the size of the fixed cover of a plurality of products cooperate with the lock pin of different types of test products respectively, are used for the PER test of different types of products respectively.
4. A universal adjustable quick plug PER testing device according to claim 2 or 3, wherein: the polarization isolator adopts bipolar polarization isolator, including magnetic ring, polarizer, 45 faradaic circulator, analyzer, the ladder Kong Youduan is downthehole to magnetic ring cover is located to with ladder hole fixed connection, polarizer, 45 faradaic circulator, analyzer encapsulate in proper order in the magnetic ring from a left side to the right side.
5. The universal adjustable rapid plugging PER testing device as claimed in claim 4, wherein: the outer disc middle part of metal sleeve is equipped with the flange that extends outwards, and the optical device fixed sleeve outside is located to the flange, turn right from a left side in the metal sleeve and be equipped with first hole, second hole, third hole and the fourth hole of coaxial setting, first hole, second hole, third hole aperture increase in proper order, fourth hole aperture cooperatees with the collimating lens external diameter, and collimating lens inserts and locates in the fourth hole, spacing ceramic bushing locates in the second hole, and the tip links to each other with second hole left end face.
6. The universal adjustable rapid plugging PER testing device as claimed in claim 5, wherein: the test support comprises a base, a support column and a clamp, the support column is fixedly connected to the top of the base, the clamp is fixedly connected to the upper end of the support column, the sleeve of the optical equipment fixing sleeve is sleeved in the clamp, the clamp is arranged in a square frame shape, an open slot is formed in the middle of the upper side wall of the clamp, a screw counter bore is formed in the left side wall of the open slot, a screw mounting hole is formed in the bottom of the screw counter bore, a threaded hole is formed in the right side wall of the open slot and corresponds to the screw mounting hole in position, a screw is sleeved in the screw counter bore, and the screw penetrates through the screw mounting hole and is in threaded connection with the inner threaded hole of the right side wall, so that the optical equipment fixing sleeve is fastened and fixed.
7. The installation method of the universal adjustable quick plug PER test device as claimed in any one of claims 1 to 6, wherein: the method comprises the following steps:
s1, fixedly connecting a metal sleeve, a limiting ceramic sleeve and a positioning ceramic ferrule in a gluing mode;
s2, inserting a collimating lens into the right end hole of the part fixed in the step S1, injecting an ASE light source from the left end of the metal sleeve, performing light spot coupling by using a light beam analyzer, coupling to a coupling light spot required by testing by adjusting the gap between the positioning ceramic ferrule and the collimating lens, and fixing the collimating lens and the metal sleeve by using a gluing mode to obtain a collimator;
s3, after the polarization isolator and the limiting glass tube are bonded and fixed by glue, the polarization isolator and the limiting glass tube are placed into a step Kong Youduan hole of the optical device fixing sleeve and are packaged and fixed by the glue;
s4, mounting the optical equipment fixing sleeve in the step S3 on a test support, sleeving the sawtooth type rotating head at the left end of a screw rod part of the optical equipment fixing sleeve, positioning the sawtooth type rotating head by sleeving a limiting sleeve on an external thread at the right end of the screw rod part, butting a product fixing sleeve with the sawtooth type rotating head, ensuring that a product plugging hole at the right end of the product fixing sleeve is coaxial with the optical equipment fixing sleeve, and fixedly connecting and assembling the adjustable rotating base in a laser welding or bolt mounting mode;
and S5, inserting one end of the collimator with the collimating lens obtained in the step S2 into the left end hole of the optical equipment fixing sleeve, selecting a standard product, inserting the insertion core of the standard product into a product insertion and extraction hole, injecting a light source emitted by an ASE light source from the left end of the metal sleeve, finely adjusting the rotary adjustable rotary base, coupling the optical power of the insertion core of the product to the maximum value by adopting an optical power meter, and then fixedly connecting the collimator with the optical equipment fixing sleeve by adopting a cementing or laser welding mode.
8. The use method of the general adjustable rapid plugging PER testing device as claimed in any one of claims 1 to 6, characterized in that: the method comprises the following steps:
b1, inserting a core insert of a tested product into a product plugging hole, emitting a light source by an ASE light source to be injected from the left end of the metal sleeve, transmitting the light source through an optical fiber in the positioning ceramic core insert, butting the optical fiber with a collimator assembly, converting the light into parallel light after passing through a collimating lens, forming linearly polarized light in one direction after being injected into a polarization isolator, and accurately injecting light spots of the linearly polarized light into an optical fiber core of the tested product through a rotary adjustable rotating seat;
b2, finely adjusting the rotary adjustable rotating seat to enable the polarization direction of the linearly polarized light to be parallel to the slow axis direction of the tested product, and then butting the PER tester with the other end of the tested product for testing to obtain accurate power and a testing value of PER polarization extinction ratio.
9. The use method of the universal adjustable rapid plugging PER test device according to claim 8, wherein: for a general adjustable rapid plugging PER testing device with a product fixing sleeve fixedly connected with a sawtooth type rotating head through laser welding, when the device works, two locking bolts need to be loosened before the adjustable rotating base is rotated, so that the end heads of the locking bolts leave the outer circular surface of the limiting sleeve;
when a test product is replaced, two locking bolts are symmetrically screwed down, the end heads of the locking bolts are tightly pressed against the outer circular surface of the limiting sleeve, the limiting sleeve and the adjustable rotary seat are integrated, the adjustable rotary seat is rotated to enable the adjustable rotary seat and the limiting sleeve to be detached from the optical equipment fixing sleeve together, the other two locking bolts on the adjustable rotary seat matched with the replaced test product are symmetrically screwed down, and then the adjustable rotary seat and the screw portion of the optical equipment fixing sleeve are sleeved in place and fixed.
10. The use method of the universal adjustable rapid plugging PER test device according to claim 8, wherein: to the fixed quick plug PER testing arrangement of general type adjustable that product fixed cover and zigzag type rotating head pass through ring flange and mounting bolt fixed connection, when changing the test product, all mounting bolts need to be pulled down, pull down the fixed cover of product, change another and the test product matched with fixed cover of change product, reinstall with mounting bolt, guarantee that product mouthful plug hole is coaxial with optical equipment fixed sleeve, then all mounting bolts of locking fasten.
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