US20150147030A1 - Optical coupling lens - Google Patents
Optical coupling lens Download PDFInfo
- Publication number
- US20150147030A1 US20150147030A1 US14/612,385 US201514612385A US2015147030A1 US 20150147030 A1 US20150147030 A1 US 20150147030A1 US 201514612385 A US201514612385 A US 201514612385A US 2015147030 A1 US2015147030 A1 US 2015147030A1
- Authority
- US
- United States
- Prior art keywords
- optical
- total reflection
- aligning member
- coupling lens
- reflection surface
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Abandoned
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Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M11/00—Testing of optical apparatus; Testing structures by optical methods not otherwise provided for
- G01M11/02—Testing optical properties
- G01M11/0285—Testing optical properties by measuring material or chromatic transmission properties
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/24—Coupling light guides
- G02B6/26—Optical coupling means
- G02B6/32—Optical coupling means having lens focusing means positioned between opposed fibre ends
Definitions
- the subject matter herein generally relates to an optical coupling lens and a system for measuring optical attenuation coefficient.
- An optical communication system usually includes an optical emitter, a first coupling lens aligned with the optical emitter, an optical fiber, a second coupling lens, and an optical receiver aligned with the second coupling lens.
- the optical emitter sends out an optical signal.
- the optical signal is transmitted by the first coupling lens, the optical fiber, and the second coupling lens sequentially, and is received by the optical receiver.
- the predetermined range within which an optical attenuation coefficient of the first coupling lens and the second coupling lens may be needs to be determined. Yet, the optical signal may be lost in the first coupling lens and the second coupling lens, and also in the optical fiber. Thus, it is difficult to measure the optical attenuation coefficient of the first coupling lens and the second coupling lens.
- the FIGURE is a diagrammatic view of a system for measuring optical attenuation coefficient according to an exemplary embodiment.
- the optical fiber connector includes a main body, lens portions, and optical fibers.
- the main body includes a first side surface and a second side surface opposite to the first side surface.
- the main body defines a cavity between the first and second side surfaces, and a number of accommodating holes extending through the first side surface and communicating with the cavity.
- the cavity includes an inner surface.
- the lens portions are positioned on the second side surface, and each lens portion is coaxial with an accommodating hole. A focal plane of each lens portion overlaps the inner surface.
- the optical fibers are fixed in the accommodating holes. An end of each optical fiber contacts the inner surface such that each optical fiber is optically coaxial with a lens portion.
- the main body further includes a bottom surface and further defines a through hole in the cavity. The through hole passes through the bottom surface.
- the FIGURE shows a system for measuring optical attenuation coefficient.
- the system includes an optical emitter 10 , an optical coupling lens 20 , and an optical detector 40 .
- the optical emitter 10 is configured for converting an electrical signal into an optical signal and sending the optical signal to the optical coupling lens 20 .
- the optical emitter 10 is a vertical cavity surface emitting laser.
- the optical coupling lens 20 is configured for coupling the optical signal emitted by the optical emitter 10 to the optical detector 40 .
- the optical coupling lens 20 includes a refraction surface 21 , a first total reflection surface 22 , and a second total reflection surface 23 .
- the refraction surface 21 , the first total reflection surface 22 , and the second total reflection surface 23 are connected end to end in order.
- An included angle between the first total reflection surface 22 and the refraction surface 21 is about 45 degrees.
- An included angle between the second total reflection surface 23 and the refraction surface 21 is about 45 degrees.
- An included angle between the first total reflection surface 22 and the second total reflection surface 23 is about 90 degrees.
- a first aligning member 25 and a second aligning member 26 are formed on the refraction surface 21 .
- the first aligning member 25 is spaced from the second aligning member 26 .
- the first aligning member 25 is aligned with the optical emitter 10 , and is configured for converting the optical signal emitted by the optical emitter 10 into a parallel light beam.
- the second aligning member 26 is aligned with the optical detector 40 , and is configured for converging the parallel light beam into the optical detector 40 .
- first aligning member 25 and the second aligning member 26 are convex lenses.
- the first aligning member 25 and the second aligning member 26 are integrally formed with the refraction surface 21 .
- the first aligning member 25 and the second aligning member 26 can also be Fresnel lenses.
- the optical detector 40 is used to measure an intensity of the optical signal.
- the optical detector 40 is a photodiode.
- the optical detector 40 When in use, firstly, the optical detector 40 is directly aligned with the optical emitter 10 and obtains an intensity P of the optical signal emitted by the optical emitter 10 . Then the optical emitter 10 is aligned with the first aligning member 25 , and the optical detector 40 is aligned with the second aligning member 26 . The optical emitter 10 sends the optical signal with the intensity P to the optical coupling lens 20 .
- the first aligning member 25 converts the optical signal into the parallel light beam and directs the parallel light beam to the first total reflection surface 22 .
- the first total reflection surface 22 reflects the parallel light beam to the second total reflection surface 23 .
- the second total reflection surface 23 reflects the parallel light beam to the second aligning member 26 .
- the second aligning member 26 converges the parallel light beam into the optical detector 40 .
- the optical detector 40 receives and measures the light beam and obtains an intensity I of the light beam.
- An optical attenuation coefficient L of the optical coupling lens 20 is calculated according to a formula
- the optical coupling lens 20 directly transmits the optical signal emitted by the optical emitter 10 to the optical detector 40 , thus any transmission loss in an optical fiber is avoided and the optical attenuation coefficient L of the optical coupling lens 20 can be accurately measured.
Abstract
An optical coupling lens which can reveal its own coefficient of signal attenuation includes a refraction surface, a first total reflection surface, a second total reflection surface, a first aligning member and a second aligning member. The refraction surface, the first total reflection surface and the second total reflection surface are connected end to end in order. The first aligning member and the second aligning member are formed on the refraction surface.
Description
- This application is a divisional application of a commonly-assigned application entitled “OPTICAL COUPLING LENS AND SYSTEM FOR MEASURING OPTICAL ATTENUATION COEFFICIENT”, filed on Jan. 31, 2013 with application Ser. No. 13/755,081. The disclosure of the above-identified application is incorporated herein by reference.
- The subject matter herein generally relates to an optical coupling lens and a system for measuring optical attenuation coefficient.
- An optical communication system usually includes an optical emitter, a first coupling lens aligned with the optical emitter, an optical fiber, a second coupling lens, and an optical receiver aligned with the second coupling lens. When in use, the optical emitter sends out an optical signal. The optical signal is transmitted by the first coupling lens, the optical fiber, and the second coupling lens sequentially, and is received by the optical receiver.
- Before using, the predetermined range within which an optical attenuation coefficient of the first coupling lens and the second coupling lens may be needs to be determined. Yet, the optical signal may be lost in the first coupling lens and the second coupling lens, and also in the optical fiber. Thus, it is difficult to measure the optical attenuation coefficient of the first coupling lens and the second coupling lens.
- Therefore, measuring an optical attenuation coefficient is problematic.
- Implementations of the present technology will now be described, by way of example only, with reference to the attached FIGURE.
- The FIGURE is a diagrammatic view of a system for measuring optical attenuation coefficient according to an exemplary embodiment.
- It will be appreciated that for simplicity and clarity of illustration, where appropriate, reference numerals have been repeated among the different figures to indicate corresponding or analogous elements. In addition, numerous specific details are set forth in order to provide a thorough understanding of the embodiments described herein. However, it will be understood by those of ordinary skill in the art that the embodiments described herein can be practiced without these specific details. In other instances, methods, procedures, and components have not been described in detail so as not to obscure the related relevant feature being described. Also, the description is not to be considered as limiting the scope of the embodiments described herein. The drawings are not necessarily to scale and the proportions of certain parts may be exaggerated to better illustrate details and features of the present disclosure.
- The term “comprising,” means “including, but not necessarily limited to” and specifically indicates open-ended inclusion or membership in the so-described combination, group, series and the like. The references “a plurality of” and “a number of” mean “at least two.”
- The present disclosure is described in relation to an optical fiber connector The optical fiber connector includes a main body, lens portions, and optical fibers. The main body includes a first side surface and a second side surface opposite to the first side surface. The main body defines a cavity between the first and second side surfaces, and a number of accommodating holes extending through the first side surface and communicating with the cavity. The cavity includes an inner surface. The lens portions are positioned on the second side surface, and each lens portion is coaxial with an accommodating hole. A focal plane of each lens portion overlaps the inner surface. The optical fibers are fixed in the accommodating holes. An end of each optical fiber contacts the inner surface such that each optical fiber is optically coaxial with a lens portion. The main body further includes a bottom surface and further defines a through hole in the cavity. The through hole passes through the bottom surface.
- The FIGURE shows a system for measuring optical attenuation coefficient. The system includes an
optical emitter 10, anoptical coupling lens 20, and anoptical detector 40. - The
optical emitter 10 is configured for converting an electrical signal into an optical signal and sending the optical signal to theoptical coupling lens 20. In this embodiment, theoptical emitter 10 is a vertical cavity surface emitting laser. - The
optical coupling lens 20 is configured for coupling the optical signal emitted by theoptical emitter 10 to theoptical detector 40. Theoptical coupling lens 20 includes arefraction surface 21, a firsttotal reflection surface 22, and a secondtotal reflection surface 23. - The
refraction surface 21, the firsttotal reflection surface 22, and the secondtotal reflection surface 23 are connected end to end in order. An included angle between the firsttotal reflection surface 22 and therefraction surface 21 is about 45 degrees. An included angle between the secondtotal reflection surface 23 and therefraction surface 21 is about 45 degrees. An included angle between the firsttotal reflection surface 22 and the secondtotal reflection surface 23 is about 90 degrees. A first aligningmember 25 and a second aligningmember 26 are formed on therefraction surface 21. The first aligningmember 25 is spaced from the second aligningmember 26. The first aligningmember 25 is aligned with theoptical emitter 10, and is configured for converting the optical signal emitted by theoptical emitter 10 into a parallel light beam. The second aligningmember 26 is aligned with theoptical detector 40, and is configured for converging the parallel light beam into theoptical detector 40. - In this embodiment, the first aligning
member 25 and the second aligningmember 26 are convex lenses. The first aligningmember 25 and the second aligningmember 26 are integrally formed with therefraction surface 21. In other embodiments, the first aligningmember 25 and the second aligningmember 26 can also be Fresnel lenses. - The
optical detector 40 is used to measure an intensity of the optical signal. In this embodiment, theoptical detector 40 is a photodiode. - When in use, firstly, the
optical detector 40 is directly aligned with theoptical emitter 10 and obtains an intensity P of the optical signal emitted by theoptical emitter 10. Then theoptical emitter 10 is aligned with the first aligningmember 25, and theoptical detector 40 is aligned with the second aligningmember 26. Theoptical emitter 10 sends the optical signal with the intensity P to theoptical coupling lens 20. The first aligningmember 25 converts the optical signal into the parallel light beam and directs the parallel light beam to the firsttotal reflection surface 22. The firsttotal reflection surface 22 reflects the parallel light beam to the secondtotal reflection surface 23. The secondtotal reflection surface 23 reflects the parallel light beam to the second aligningmember 26. The second aligningmember 26 converges the parallel light beam into theoptical detector 40. Theoptical detector 40 receives and measures the light beam and obtains an intensity I of the light beam. An optical attenuation coefficient L of theoptical coupling lens 20 is calculated according to a formula -
- The
optical coupling lens 20 directly transmits the optical signal emitted by theoptical emitter 10 to theoptical detector 40, thus any transmission loss in an optical fiber is avoided and the optical attenuation coefficient L of theoptical coupling lens 20 can be accurately measured. - The embodiments shown and described above are only examples. Many details are often found in the art such as the other features of an optical coupling lens. Therefore, many such details are neither shown nor described. Even though numerous characteristics and advantages of the present technology have been set forth in the foregoing description, together with details of the structure and function of the present disclosure, the disclosure is illustrative only, and changes may be made in the details, including in the matters of shape, size, and arrangement of the parts within the principles of the present disclosure, up to and including the full extent established by the broad general meaning of the terms used in the claims. It will therefore be appreciated that the embodiments described above may be modified within the scope of the claims.
Claims (4)
1. An optical coupling lens comprising:
a lens member with:
a refraction surface having a first refraction surface side and a second refraction surface side, opposite to, and substantially parallel with, the first refraction surface side;
a first total reflection surface having a first side and a second side opposite to, and substantially parallel with, the first side; and
a second total reflection surface having a first side and a second side opposite to, and substantially parallel with, the first side;
a first aligning member; and
a second aligning member;
wherein, the first refraction surface side is connected to the first side of the first total reflection surface, the second refraction surface side is connected to the first side of the second total reflection surface and the second side of the first total reflection surface is connected to the second side of the second total reflection surface; and
wherein, the first aligning member and the second aligning member are formed on the refraction surface.
2. The optical coupling lens of claim 1 , wherein an included angle between the first total reflection surface and the refraction surface is about 45 degrees, an included angle between the second total reflection surface and the refraction surface is about 45 degrees, and an included angle between the first total reflection surface and the second total reflection surface is about 90 degrees.
3. The optical coupling lens of claim 1 , wherein the first aligning member and the second aligning member are convex lenses.
4. The optical coupling lens of claim 1 , wherein the first aligning member and the second aligning member are Fresnel lenses.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US14/612,385 US20150147030A1 (en) | 2012-11-22 | 2015-02-03 | Optical coupling lens |
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
TW101143657A TW201421006A (en) | 2012-11-22 | 2012-11-22 | Optical coupling lens and measurement system for optical dissipation coefficient |
TW101143657 | 2012-11-22 | ||
US13/755,081 US8976346B2 (en) | 2012-11-22 | 2013-01-31 | Optical coupling lens and system for measuring optical attenuation coefficient |
US14/612,385 US20150147030A1 (en) | 2012-11-22 | 2015-02-03 | Optical coupling lens |
Related Parent Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US13/755,081 Division US8976346B2 (en) | 2012-11-22 | 2013-01-31 | Optical coupling lens and system for measuring optical attenuation coefficient |
Publications (1)
Publication Number | Publication Date |
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US20150147030A1 true US20150147030A1 (en) | 2015-05-28 |
Family
ID=50727645
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US13/755,081 Expired - Fee Related US8976346B2 (en) | 2012-11-22 | 2013-01-31 | Optical coupling lens and system for measuring optical attenuation coefficient |
US14/612,385 Abandoned US20150147030A1 (en) | 2012-11-22 | 2015-02-03 | Optical coupling lens |
Family Applications Before (1)
Application Number | Title | Priority Date | Filing Date |
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US13/755,081 Expired - Fee Related US8976346B2 (en) | 2012-11-22 | 2013-01-31 | Optical coupling lens and system for measuring optical attenuation coefficient |
Country Status (2)
Country | Link |
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US (2) | US8976346B2 (en) |
TW (1) | TW201421006A (en) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
TWI544244B (en) * | 2012-06-29 | 2016-08-01 | 鴻海精密工業股份有限公司 | Optical coupling lens and optical communication module |
TW201423187A (en) * | 2012-12-03 | 2014-06-16 | Hon Hai Prec Ind Co Ltd | Photoelectric conversion device |
TW201500792A (en) * | 2013-06-27 | 2015-01-01 | Hon Hai Prec Ind Co Ltd | Optical coupling lens and testing method for same |
TW201508360A (en) * | 2013-08-27 | 2015-03-01 | 鴻海精密工業股份有限公司 | Optical coupling lens, testing method for optical coupling lens and optical communication device |
US20180017735A1 (en) * | 2016-07-13 | 2018-01-18 | Futurewei Technologies, Inc. | Wavelength Division Multiplexer/Demultiplexer with Flexibility of Optical Adjustment |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5190042A (en) * | 1989-09-22 | 1993-03-02 | Datron-Electronic Gmbh | Apparatus for determining intraocular pressure |
US20040165828A1 (en) * | 2000-11-01 | 2004-08-26 | Intel Corporation | System and method for collimating and redirecting beams in a fiber optic system |
US20060210222A1 (en) * | 2003-04-30 | 2006-09-21 | Jan Watte | Connector device for coupling optical fibres, and method of production thereof |
US20070237459A1 (en) * | 2005-10-28 | 2007-10-11 | Jan Watte | Connector device for coupling optical fibres, and method of production thereof |
US20090290834A1 (en) * | 2005-01-24 | 2009-11-26 | Matsushita Electric Works, Ltd. | Optical Switch |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2417753A1 (en) * | 1978-02-15 | 1979-09-14 | Hitachi Ltd | REMOTE OPTICAL MEASUREMENT AND CONTROL SYSTEM OF AN OBJECT UNDERGOING A PHYSICAL TRANSFORMATION |
JPS61232412A (en) * | 1985-04-08 | 1986-10-16 | Matsushita Electric Ind Co Ltd | Optical switch |
US5781305A (en) * | 1996-02-01 | 1998-07-14 | Downes; Philip | Fiber optic transmissometer |
JP2002268028A (en) * | 2001-03-09 | 2002-09-18 | Furukawa Electric Co Ltd:The | Variable optical filter unit and variable gain equalization system |
RU2230348C1 (en) * | 2002-12-27 | 2004-06-10 | Гущо Юрий Петрович | Electrooptical converter, gelatinous layer for electrooptical converter, p rocess of preparation of gelatinous layer (variants) and composition for r ealization of process |
US8941831B2 (en) * | 2009-05-04 | 2015-01-27 | Theodore Peter Rakitzis | Intra-cavity ellipsometer system and method |
EP2859325A2 (en) * | 2012-06-10 | 2015-04-15 | Bio-Rad Laboratories, Inc. | Optical detection system for liquid samples |
-
2012
- 2012-11-22 TW TW101143657A patent/TW201421006A/en unknown
-
2013
- 2013-01-31 US US13/755,081 patent/US8976346B2/en not_active Expired - Fee Related
-
2015
- 2015-02-03 US US14/612,385 patent/US20150147030A1/en not_active Abandoned
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5190042A (en) * | 1989-09-22 | 1993-03-02 | Datron-Electronic Gmbh | Apparatus for determining intraocular pressure |
US20040165828A1 (en) * | 2000-11-01 | 2004-08-26 | Intel Corporation | System and method for collimating and redirecting beams in a fiber optic system |
US20060210222A1 (en) * | 2003-04-30 | 2006-09-21 | Jan Watte | Connector device for coupling optical fibres, and method of production thereof |
US20090290834A1 (en) * | 2005-01-24 | 2009-11-26 | Matsushita Electric Works, Ltd. | Optical Switch |
US20070237459A1 (en) * | 2005-10-28 | 2007-10-11 | Jan Watte | Connector device for coupling optical fibres, and method of production thereof |
Also Published As
Publication number | Publication date |
---|---|
US20140139836A1 (en) | 2014-05-22 |
US8976346B2 (en) | 2015-03-10 |
TW201421006A (en) | 2014-06-01 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
AS | Assignment |
Owner name: HON HAI PRECISION INDUSTRY CO., LTD., TAIWAN Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:HUNG, YI;REEL/FRAME:034872/0923 Effective date: 20150127 |
|
STCB | Information on status: application discontinuation |
Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION |