CN1549465A - Method for detecting and assembling optical fibre emitter optical sub-module - Google Patents
Method for detecting and assembling optical fibre emitter optical sub-module Download PDFInfo
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- CN1549465A CN1549465A CNA031234976A CN03123497A CN1549465A CN 1549465 A CN1549465 A CN 1549465A CN A031234976 A CNA031234976 A CN A031234976A CN 03123497 A CN03123497 A CN 03123497A CN 1549465 A CN1549465 A CN 1549465A
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Abstract
The present invention discloses a detection and assembly method of optical submodule of fibre-optical emitter. Said optical submodule includes an external shell body, the front end and rear end of said external shell body are equipped with through hole respectively, and said through hole can be used for assembling functional component and optical fibre, and between the optic fibre and functional component a lens is placed. Said invention also provides its detection and assembly method by using an image detector, and said invention can optimize the transmission frequency bandwidth of optic fibre, specially, multimode fibre.
Description
Technical field
The present invention relates to a kind of fiber optic emitter optical secondary module (OSA, Transceiver OpticalSub-Assembly) detection and assemble method, more particularly, relate to a kind of optic fibre hole that when the assembling function assembly, utilizes an image detector with its sampling camera lens alignment housings body, make sampling camera lens focus furnishing and optical coupling face copline, and directly the light beam of mat functional unit pass lens and the luminous point of being presented in optical coupling face as detected object, aim at the detection and the assemble method of contraposition functional unit is carried out the non-fiber formula.
Background technology
In photoelectricity transmission, optical secondary module (the OSA of fiber optic emitter, Transceiver OpticalSub-Assembly), can be divided into transmitter optical secondary module TOSA (Transceiver Optical Sub-Assembly) and receiver optical secondary module ROSA (ReceiverOptical Sub-Assembly) with the difference of functional unit, wherein, TOSA is used to provide functional unit to optical fiber, as semiconductor laser to optical fiber or light-emitting diode to optical fiber, make electric signal (Electrical Signal) convert light to and through lens focus transmission again in optical fiber.
Optical secondary module (OSA, Optical Sub-Assembly) so far through research and development, existing multiple different manufacture method, wherein utilize the manufacture method of transparent heat molding material and mat plastics ejection forming technique to become main flow because of cost is lower, comprise U.S. Pat 5,631,991, [PLASTIC OPTICALSUBASSEMBLLES FOR LIGHT TRANSFER BETWEEN AN OPTICAL FIBER AND ANOPTOELECTRIC CONVERTER AND THE FABRICATION OF SUCH PLASTIC OPTICALSUBASSMBLLIES]; Or US 6,432,733 B1[METHOD FOR PRODUCING AN OPTICALMODULE], and the US shown in Fig. 16,302,596 B1[SMALL FORM FACTOR OPTOELECTRICTRANSCEIVERS], however above-mentioned conventional art has following point and shortcoming during fabrication:
1. the shell body A2 of optical secondary module A1 is the single type structure of one ejection formation, the one end is provided with for assembling optical fiber with 20 hole A3, and the other end is provided with the hole A4 of confession assembling function assembly 30 usefulness, is provided with a lens A5 between hole A3 and hole A4, these lens A5 can be one-body molded with shell body A2, as shown in Figure 1, can be not one-body molded yet, as US 5,631,991 or US 6,432,733 B1 shown in; Since the mould of shell body A2 to offer difficulty higher, also be difficult to control the moulding quality of its ejection formation body, especially the quality of the lens face A6 (light emergence face) of the lens A5 shown in Fig. 1, thereby influence the quality of finished of optical secondary module A1, product qualified rate is reduced, increase the trouble of calibration or assembling operation simultaneously, relatively increased cost.
2. the traditional detection of optical secondary module A1 and assembling mode generally are the positions that the mat optical coupling efficiency comes the adjusting function assembly, promptly when functional unit is assembled on the shell body, optical fiber 20 has been set in the A3 of hole, utilize detecting instrument mat optical coupling efficiency to come the position of adjusting function assembly by optical fiber again, to aim at contraposition adjustment operation, even need adjust the focus point size and location of laser beam behind lens A5 of functional unit this moment according to specification, and be coupled to the optical fiber end that is assembled in the A3 of hole, and finish the finished product (with reference to the specification of the relevant Launched power of the TIA/EIA-455-203 of international telecommunication association distributionmeasurement procedure for graded-index multi-mode fiber transmitters) that meets the specification; Yet should tradition adjustment detection operation be to utilize detecting instrument to cooperate the optical fiber end of having assembled, the mat optical coupling efficiency comes the position of adjusting function assembly, be not that the size of direct mat light beam and position are with optimization Optical Fiber Transmission frequency range, therefore, this mode is difficult to reach effectively and accurate the detection, easily influences the quality of finished of optical secondary module A1.
3. the detection mode that above-mentioned still more mat optical coupling efficiency comes the adjusting function module position, potential have a lot of changes that influence testing result because of, as: the optical fiber quality all has certain tolerance to exist, and the quality of functional unit is not fixed (transmitting power as laser diode is exactly non-constant remaining unchanged) yet, easily cause the error of TOSA finished product detection quality, attempt example explanation: detect qualified finished product in a conventional manner and be to be based upon fully and carry out functional unit and aim at the transmitting power of the used at that time functional unit of contraposition operation or the quality specification of used optical fiber, therefore detect qualified finished product in a conventional manner, its qualified quality might be only effective to used at that time functional unit or optical fiber, if use in the different time different location, be that the user changes slotting other optical fiber, then because of before, the optical fiber that use the back has error range, may have the quality condition of poor takes place, thereby cause quality of finished to grasp really, qualification rate can't be improved, and cost improves relatively.
At shell body A2 in above-mentioned the 1st is the shortcoming of one ejection formation single type structure, creator of the present invention has done improvement, shell body is designed to the structure of two-piece type, as shown in Figures 2 and 3, the shell body of this optical secondary module is made up of one first shell body B1 and two housings of one second shell body B2, the end of the first shell body B1 is provided with for linking the hole B3 that optical fiber B4 uses, the corresponding end of the second shell body B2 is provided with for linking the hole B5 that functional unit B6 uses, this shell body is the structure of two-piece type and has applied for the Taiwan patent, application number is 92200404, but no matter shell body is single type structure or two-part construction, still faces the problem that has in the above-mentioned the 2nd and the 3rd on making.
Summary of the invention
Main purpose of the present invention is to provide detection and the assemble method of a kind of fiber optical transceiver optical secondary module that can effectively address the above problem (Transceiver Optical Sub-Assembly).
The detection of the fiber optic emitter optical secondary module among the present invention and assemble method are in the hole that functional unit is sheathed on shell body and when carrying out assembling operation, utilize image detector that the focus of its sampling camera lens is adjusted to and the optical coupling face copline, and the luminous point that directly utilizes functional unit to give off laser beam to pass lens and be presented in coupling surface is as detected object, to carry out the aligning contraposition of functional unit.
Detection among the present invention and assemble method are because when functional unit is assembled, directly calibrate testing at the luminous point of laser beam image on optical coupling face, so the shortcoming that can avoid conventional art to produce, effectively improve product qualified rate, simplify the detection operation of finished product, and help producing in batches.
Detection among the present invention and assemble method are owing to directly utilize laser beam presents on the optical coupling face luminous point as detected object, to calibrate testing, therefore can not necessarily need at the multimode fiber Coupling point in the specification of fiber cores (Core) central point, and the distribution of optimization coupled fiber mode, reduce modal dispersion, the transmitting bandwidth of optimization multimode fiber is reached the optimum detection quality.
Detection among the present invention and assemble method are because the direct luminous point that presents at laser beam on the optical coupling face is calibrated testing, therefore applicable to the functional unit of various kenels, comprise wall emission laser beam (VCSEL, Vertical Cavity Surface Emitted Laser) or the limit penetrate type laser beam (SideEmitted Laser), and comprise that the TO-Can encapsulation laser diode or the uncovered laser diode SMT type (bare chip LD) that contain lid (cap) are all applicable, and this fiber optic emitter can be the transmitter module of reversible (bi-direction) or duplexing formula (duplex) transceiver.
Description of drawings
Below in conjunction with accompanying drawing the specific embodiment among the present invention is described in further detail.
Fig. 1 is the structural profile schematic diagram of the conventional enclosure body optical secondary module that is single type;
Fig. 2 is the structural profile schematic diagram of the optical secondary module that shell body is two formulas among the present invention;
Fig. 3 is the combination schematic diagram of optical secondary module shown in Fig. 2;
Fig. 4 A is the structural profile schematic diagram of optical secondary module when the assembling function assembly that shell body is single type among the present invention;
Fig. 4 B is that optical secondary module shown in Fig. 4 A utilizes the schematic diagram when method detects among the present invention;
Fig. 5 A is the structural profile schematic diagram of optical secondary module when the assembling function assembly that shell body is two formulas among the present invention;
Fig. 5 B is that optical secondary module utilizes schematic diagram when method detects among the present invention among Fig. 5 A;
Fig. 6 is that shell body is single type and functional unit is the structural profile schematic diagram of the optical secondary module of uncovered (can) laser diode SMTTYPE among the present invention.
Embodiment
As Fig. 1, Fig. 4 A, Fig. 4 B, shown in, at the shell body of single type structure, detection and assemble method among the present invention may further comprise the steps:
(1) utilize the technology of plastics ejection formation that one shell body (Housing) 10 is provided, this shell body 10 is the single type structure, this structure and traditional single type structure proximate, as: US 5,631,991, US 6,432, structure shown in 733B1 and US 6,302,596 B1.One end of shell body 10 is provided with the hole 11 for assembling optical fiber 20 usefulness, the other end is provided with the hole 12 for assembling function assembly 30 usefulness, and functional unit 30 has different assembling kenel and function, as laser or light-emitting diode, photodetector, comprise wall emission or limit emitting laser transistor, and comprise TO encapsulation laser diode or the uncovered laser diode SMT type (bare chipLD) that contains lid (cap); Be provided with lens 13 between hole 11 and hole 12, these lens 13 can be one-body molded with shell body 10, as shown in Figure 1, can be not one-body molded yet, as US 5,631,991 or US 6,432,733 B1 shown in;
(2) carry out functional unit 30 earlier and be sheathed on assembling operation in the hole 12 of shell body 10, aligning contraposition (detection) mode in this assembling operation is to utilize an image detector 40, make the hole 11 that assembling optical fiber is used on its sampling camera lens 41 alignment housings bodies 10, and the focus of sampling camera lens 41 is adjusted to and optical coupling face 21 (being the stopping surface Stop Face14 of 11 the inners, hole) copline, the luminous point that makes laser beam on the functional unit 30 pass lens 13 and be presented in optical coupling face 21 (being the stopping surface 14 of optical fiber 20) is as detected object, carrying out the aligning contraposition of functional unit 30 in shell body 10, and then assembling is finished.
Shown in Fig. 2, Fig. 3, Fig. 5 A and Fig. 5 B, at the shell body of two-part construction, detection and assemble method among the present invention may further comprise the steps below:
(1) utilize the plastics ejection forming technique that one shell body 50 is provided, this shell body 50 is a two-part construction, form by one first shell body 51 and one second shell body 52, wherein, the corresponding end that one end of first shell body 51 is provided with for hole 53, the second shell bodies 52 that link optical fiber 20 usefulness is provided with for linking functional unit 30 usefulness holes 54, is provided with lens 55 between hole 53 and hole 54, these lens 55 can be one-body molded with second shell body 51, also can be not one-body molded; First shell body 51 and second shell body 52 are after combination, and the coupling surface 21 of optical fiber 20 promptly is the stopping surface 56 of optical fiber 20 in hole 53, the binding face when this stopping surface 56 is second shell body 52 and 51 combinations of first shell body; Because first shell body 51 and second shell body 52 all are to utilize the plastics ejection forming technique to make the fine structure of moulding, matching relationship between the two is accurate to be set, and therefore can simple and easy socket be assembled into one;
(2) carry out functional unit 30 earlier and be sheathed on assembling operation in the hole 54 of second shell body 52, shown in Fig. 5 A and Fig. 5 B, aligning contraposition mode in assembling operation is to utilize an image detector 40, the focus of its sampling camera lens 41 is adjusted to and optical coupling face 21 (being the stopping surface 56 of optical fiber 20) copline, the luminous point that makes laser beam on the functional unit 30 pass lens 55 and be presented in optical coupling face 21 (being stopping surface 56) is as detected object, carrying out the aligning contraposition of functional unit 30 in second shell body 52, and then assembling is finished;
(3) more above-mentioned second shell body 52 and first shell body 51 that has been assembled with functional unit 30 is combined into one.
By above-mentioned detection and assemble method, make assembling processing procedure of the present invention be different from traditional approach, particularly the present invention no longer the coupling efficiency of mat optical fiber come the assembling position of adjusting function assembly in shell body as detected object, and be improved under the situation of unassembled optical fiber, directly utilize an image detector by the light beam ejecting end place of lens and make focus of its sampling camera lens be adjusted to optical coupling face at grade, the luminous point that makes the laser beam that can utilize functional unit pass lens and be presented in optical coupling face is as detected object, come the position of adjusting function assembly in shell body, carrying out the aligning contraposition of functional unit in shell body, so the following effect of detection among the present invention and assemble method tool:
1. no matter shell body is an also two-part construction body of single type structure, or replace the metal shell body structure of functional unit with the plastic casing body, detection among the present invention and assemble method are all applicable.
2. the present invention directly utilizes on the optical coupling face and is presented in the luminous point of optical coupling face as detected object behind the laser beam process lens, and calibrate testing, thereby can effectively reduce of the harmful effect of the error of behaviour of functional unit or optical fiber, improve product qualified rate quality of finished.
3. at high-speed transfer (as 10G Ethernet) and multimode fiber (Multi-mode Fiber) or plastic fiber (plastic optical fiber, POF) technical field, with the laser beam spots on the optical coupling face as detected object, can be according to need the accurate optimum position of adjustment image, but use the distribution of optimization coupled fiber mode, reduce modal dispersion, and the transmitting bandwidth of optimization multimode fiber.
4. no matter functional unit is wall emission laser beam (VCSEL, Vertical Cavity SurfaceEmitted Laser) or the limit penetrate type laser beam (Side Emitted Laser), detection among the present invention and assemble method are all applicable, increase the range of application of functional unit.
5. no matter functional unit is flat glass, oblique glass, ball glass or uncovered (cap) laser diode SMT type (bare chip LD), and is as shown in Figure 6, all applicable.
In sum, the manufacture method among the present invention really can the disclosed technology of mat and is reached desired effect.
In addition; though more than the preferred embodiment among the present invention is described; but can not be as protection scope of the present invention; promptly should be understood that to those skilled in the art; do not breaking away from variation and the modification that to make equivalence under the design spirit of the present invention to it; therefore, every not breaking away from the equivalence variation of having done under the design spirit of the present invention and modification, all should think to fall into protection scope of the present invention.
Claims (11)
1. the detection of a fiber optic emitter optical secondary module and assemble method, optical secondary module in this detection and the assemble method provides functional unit to optical fiber, make electric signal convert to light and through lens focus in optical fiber again the transmission, this optical secondary module includes a shell body, one end of shell body is provided with a hole that supplies assembling optical fiber to use, the other end is provided with another hole of using for the assembling function assembly, between two holes, be provided with lens, it is characterized in that: in the hole that functional unit is sheathed on shell body and when carrying out assembling operation, utilize an image detector that the focus of its sampling camera lens is adjusted to and the optical coupling face copline, and utilize laser beam on the functional unit to pass lens and the luminous point of being presented in coupling surface as detected object, mat adjusting function assembly and adjust the size and location of luminous point on optical coupling face, assembling is fixing again after making functional unit aim at contraposition earlier in shell body.
2. according to the detection and the assemble method of the fiber optic emitter optical secondary module described in the claim 1, it is characterized in that: the single type structure that described shell body is formed in one.
3. according to the detection and the assemble method of the fiber optic emitter optical secondary module described in the claim 1, it is characterized in that: described shell body is a two-part construction, it includes one first shell body and one second shell body, end at first shell body is provided with one for linking the hole that optical fiber is used, corresponding end at second shell body is provided with another for linking the hole that functional unit is used, and is provided with lens between two stomidiums.
4. according to the detection and the assemble method of the fiber optic emitter optical secondary module described in the claim 1, it is characterized in that: described functional unit is laser diode or light-emitting diode.
5. according to the detection and the assemble method of the fiber optic emitter optical secondary module described in the claim 1, it is characterized in that: described functional unit is that the type laser beam is penetrated on wall emission laser beam or limit.
6. according to the detection and the assemble method of the fiber optic emitter optical secondary module described in the claim 2, it is characterized in that: described lens and shell body are one-body molded.
7. according to the detection and the assemble method of the fiber optic emitter optical secondary module described in the claim 2, it is characterized in that: described lens and shell body are not one-body molded, and are assembled in the shell body.
8. according to the detection and the assemble method of the fiber optic emitter optical secondary module described in the claim 3, it is characterized in that: the described lens and second shell body are one-body molded.
9. according to the detection and the assemble method of the fiber optic emitter optical secondary module described in the claim 3, it is characterized in that: the described lens and second shell body are not one-body molded, and are assembled in second shell body.
10. according to the detection and the assemble method of the fiber optic emitter optical secondary module described in the claim 1, it is characterized in that: described optical fiber comprises monomode fiber (single-mode fiber), multimode fiber or plastic fiber.
11. detection and assemble method according to the fiber optic emitter optical secondary module described in the claim 1 is characterized in that: described fiber optic emitter is the transmitter module of reversible or duplexing formula transceiver.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB031234976A CN100514887C (en) | 2003-05-09 | 2003-05-09 | Method for detecting and assembling optical fibre emitter optical sub-module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB031234976A CN100514887C (en) | 2003-05-09 | 2003-05-09 | Method for detecting and assembling optical fibre emitter optical sub-module |
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| Publication Number | Publication Date |
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| CN1549465A true CN1549465A (en) | 2004-11-24 |
| CN100514887C CN100514887C (en) | 2009-07-15 |
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| Application Number | Title | Priority Date | Filing Date |
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| CNB031234976A Expired - Fee Related CN100514887C (en) | 2003-05-09 | 2003-05-09 | Method for detecting and assembling optical fibre emitter optical sub-module |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100397128C (en) * | 2004-12-10 | 2008-06-25 | 财团法人工业技术研究院 | Optical fibre wave conducting type optical submodule |
| US7409124B2 (en) | 2004-11-25 | 2008-08-05 | Industrial Technology Research Institute | Fiber waveguide optical subassembly module |
| CN101567722B (en) * | 2008-04-22 | 2012-06-27 | 瑞轩科技股份有限公司 | Device and method for optical fiber detection |
| CN102651667A (en) * | 2011-02-25 | 2012-08-29 | 汪润泉 | Polymer single-fiber optical transmit-receive module and preparation method thereof |
| CN102053317B (en) * | 2009-11-04 | 2012-11-21 | 光环科技股份有限公司 | Two-piece type shell structure of optical submodule and assembling method |
| CN104848165A (en) * | 2015-05-12 | 2015-08-19 | 上海华测导航技术股份有限公司 | Device for avoiding divergence of laser lamp |
-
2003
- 2003-05-09 CN CNB031234976A patent/CN100514887C/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7409124B2 (en) | 2004-11-25 | 2008-08-05 | Industrial Technology Research Institute | Fiber waveguide optical subassembly module |
| CN100397128C (en) * | 2004-12-10 | 2008-06-25 | 财团法人工业技术研究院 | Optical fibre wave conducting type optical submodule |
| CN101567722B (en) * | 2008-04-22 | 2012-06-27 | 瑞轩科技股份有限公司 | Device and method for optical fiber detection |
| CN102053317B (en) * | 2009-11-04 | 2012-11-21 | 光环科技股份有限公司 | Two-piece type shell structure of optical submodule and assembling method |
| CN102651667A (en) * | 2011-02-25 | 2012-08-29 | 汪润泉 | Polymer single-fiber optical transmit-receive module and preparation method thereof |
| CN104848165A (en) * | 2015-05-12 | 2015-08-19 | 上海华测导航技术股份有限公司 | Device for avoiding divergence of laser lamp |
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| Publication number | Publication date |
|---|---|
| CN100514887C (en) | 2009-07-15 |
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