US20010026658A1 - Method for producing plano-convex convergence lenses - Google Patents
Method for producing plano-convex convergence lenses Download PDFInfo
- Publication number
- US20010026658A1 US20010026658A1 US09/863,954 US86395401A US2001026658A1 US 20010026658 A1 US20010026658 A1 US 20010026658A1 US 86395401 A US86395401 A US 86395401A US 2001026658 A1 US2001026658 A1 US 2001026658A1
- Authority
- US
- United States
- Prior art keywords
- convex
- optical
- diaphragm
- plano
- producing
- 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.)
- Granted
Links
Images
Classifications
-
- 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
- G02B6/10—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings of the optical waveguide type
- G02B6/12—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings of the optical waveguide type of the integrated circuit kind
- G02B6/122—Basic optical elements, e.g. light-guiding paths
- G02B6/124—Geodesic lenses or integrated gratings
- G02B6/1245—Geodesic lenses
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B3/00—Simple or compound lenses
-
- 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
- G02B6/42—Coupling light guides with opto-electronic elements
- G02B6/4201—Packages, e.g. shape, construction, internal or external details
- G02B6/4204—Packages, e.g. shape, construction, internal or external details the coupling comprising intermediate optical elements, e.g. lenses, holograms
- G02B6/4206—Optical features
-
- 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
- G02B6/10—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings of the optical waveguide type
- G02B6/12—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings of the optical waveguide type of the integrated circuit kind
- G02B2006/12083—Constructional arrangements
- G02B2006/12102—Lens
-
- 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
- G02B6/42—Coupling light guides with opto-electronic elements
- G02B6/4201—Packages, e.g. shape, construction, internal or external details
- G02B6/4204—Packages, e.g. shape, construction, internal or external details the coupling comprising intermediate optical elements, e.g. lenses, holograms
Definitions
- the invention relates to a method for producing plano-convex convergent lenses which can be used in an optical system that includes a convergent lens for injecting laser radiation emitted from a semiconductor laser into an optical device.
- optical information transmission radiation from semiconductor laser emitters, which generally emit widely divergent beams, has to be injected into optical conductors, such as optical fibers. Furthermore, the power to be injected has to be matched to the requirements of various transmissions systems and standards.
- European Patent Application EP 0 566 341 A1 which represents the closest prior art, describes a connector device for connecting a laser diode to an optical fiber.
- the connector device comprises a plano-convex lens configured in the beam path on the light inlet side, a diaphragm plate configured behind the lens, and an optical connecting element provided on the light outlet side.
- the lens, diaphragm plate, and optical connecting element are located (for reasons of mutual alignment) in a common socket, and their touching surfaces are bonded using a transparent adhesive.
- optical conductor it is an object to provide an optical system by means of which the radiation power to be injected into the optical device (optical conductor) can be varied in a simple manner.
- the convergent lens is provided with a structured coating in the form of a diaphragm (for example a perforated or zone diaphragm) for masking out a portion of the laser radiation emitted from the semiconductor laser emitter.
- a diaphragm for example a perforated or zone diaphragm
- a major advantage of the optical system according to the invention is, in particular, that the portion of the beam emitted from the semiconductor laser emitter which is in any case not injected into the optical conductor is masked out.
- receptacle components advantageously achieve the same eye safety as pigtail components.
- an optical system that includes a semiconductor laser for emitting laser radiation, an optical device, and a convergent lens.
- the convergent lens is configured between the semiconductor laser and the optical device for injecting the emitted laser radiation into the optical device.
- the convergent lens is provided with a coating structured to have the form of a diaphragm for masking out a portion of the emitted laser radiation.
- a structured coating (diaphragm) which is preferably composed of metal, and which can be applied in a simple manner to the surface of the convergent lens, by means of vapor deposition.
- the convergent lens may be composed of glass, silicon or some other semiconductor material that passes the respective laser radiation wavelength. It is particularly preferred for the convergent lens to be a plano-convex lens, with the structured coating provided on the convex side.
- a structured coating that is preferably in the form of a perforated diaphragm and that masks out the portion of the laser radiation whose divergence angle is greater than the acceptance angle of the optical conductor.
- the radiation power injected into the optical conductor is varied by varying the divergence angle below the value of the acceptance angle, without having to change the geometrical configuration of the entire system that includes the semiconductor laser emitter, convergent lens, and optical device that can be an optical conductor.
- a structured coating that is preferably in the form of a zone diaphragm for masking out the high-intensity central beam. This reduces the injected power and increases the eye safety of receptacle versions.
- the optical system may be employed in an advantageous manner for coupling the laser beam of the semiconductor laser emitter in a multi-mode fiber. Only the fundamental mode of the multimode fiber is stimulated by masking out the laser radiation with a high divergence angle. The transmission characteristics of a single mode fiber are thus simulated in the multi-mode fiber.
- a method for producing a multiplicity of plano-convex focusing lenses An Silicon wafer is first produced which is provided with a plurality of convex elevations on a first main surface, using photographic techniques and etching. A first metallic layer is applied which is by using photographic techniques and etching, structured such that, on the convex elevations, (ring-shaped) perforated diaphragms or disc-shaped zone diaphragms remain.
- the silicon wafer is then sliced through, for example, by sawing or cutting grinding, to form individual plano-convex convergent lenses with a perforated diaphragm or zone diaphragm.
- optical system is, of course, not limited for injecting laser radiation into an optical fiber. It can be used in any apparatus in which only a portion of an available laser beam is intended to be injected into an optical device.
- FIG. 1 shows a schematic illustration of a section through a first exemplary embodiment and shows the beam path
- FIG. 2 shows a schematic illustration of a section through a second exemplary embodiment and shows the beam path
- FIG. 3 shows a schematic illustration of the method for producing a plurality of optical systems as per the exemplary embodiments.
- FIG. 1 there is shown a convergent lens in the form of a spherical or aspherical silicon plano-convex lens 2 that is configured between a semiconductor laser emitter 1 and an optical conductor 3 , in this case an optical fiber.
- the curved surface 7 of the plano-convex lens 2 is provided with a perforated diaphragm 4 thereon, which can include a metallic layer 6 or be a layer that is entirely composed of metal (for example A1).
- This perforated diaphragm 4 masks out an edge region of the highly divergent radiation or laser beam 5 emitted from the semiconductor laser emitter 1 , allows only a center region of the laser beam 5 around its beam axis 9 to pass therethrough, and converts this into a convergent laser beam 8 . Only this portion of the divergent laser beam 5 is injected into the optical conductor 3 , specifically the optical fiber.
- the perforated diaphragm 4 is dimensioned, in particular, such that the convergence angle (or the divergence angle once again after passing through the focus) of the radiation to be injected is equal to or less than the acceptance angle of the optical fiber. This means that the diaphragm 4 masks out the portion of the laser radiation or beam 5 that is in any case not injected into the optical fiber 3 .
- the optical system shown in FIG. 1 may be used for injecting laser radiation 5 into a multi-mode fiber that is provided as the optical conductor 3 . Masking out the laser radiation having a high divergence angle then results in only the fundamental mode being stimulated. The transmission characteristics of a single-mode fiber are thus simulated in the multi-mode fiber.
- FIG. 2 differs from that in FIG. 1 essentially in that a zone diaphragm 4 ′, which is in the form of a disc and is a metallic layer 6 ′ is provided instead of the perforated diaphragm 4 shown in FIG. 1.
- This zone diaphragm 4 ′ masks out the high-intensity central beam of the laser beam 5 emitted from the semiconductor laser emitter 1 .
- the method includes the following method steps:
- a plurality of plano-convex convergent lenses 2 with zone diaphragms 4 ′ can be produced, for example, using an analogous method.
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Optical Couplings Of Light Guides (AREA)
- Semiconductor Lasers (AREA)
Abstract
Description
- This is a division of U.S. application Ser. No. 09/533,562, filed Mar. 22, 2000, which was a continuation of copending International application No. PCT/DE98/02767, filed Sep. 17, 1998, which designated the United States.
- Field of the Invention
- The invention relates to a method for producing plano-convex convergent lenses which can be used in an optical system that includes a convergent lens for injecting laser radiation emitted from a semiconductor laser into an optical device.
- In optical information transmission, radiation from semiconductor laser emitters, which generally emit widely divergent beams, has to be injected into optical conductors, such as optical fibers. Furthermore, the power to be injected has to be matched to the requirements of various transmissions systems and standards.
- In known laser modules involving information transmission technology (see, for example, DE 41 33 220), the laser emitter is followed by a spherical, biconvex or plano-convex lens that converts the highly divergent beam into a convergent beam. In order to inject the desired radiation power into the optical conductor, the optical conductor must be adjusted in all three spatial directions. These systems thus involve a very high level of assembly effort, in particular because of the complex adjustment in the z-direction. Furthermore, mechanical instabilities often occur in these systems.
- A further disadvantage of the known optical systems of the type mentioned initially is that additional technical means have to be used to prevent the laser radiation that is not injected into the optical conductor from emerging from the corresponding component. European Patent Application EP 0 566 341 A1, which represents the closest prior art, describes a connector device for connecting a laser diode to an optical fiber. The connector device comprises a plano-convex lens configured in the beam path on the light inlet side, a diaphragm plate configured behind the lens, and an optical connecting element provided on the light outlet side. The lens, diaphragm plate, and optical connecting element are located (for reasons of mutual alignment) in a common socket, and their touching surfaces are bonded using a transparent adhesive.
- It is accordingly an object of the invention to provide a method for producing plano-convex convergence lenses which can be used in an optical system that includes a convergent lens for injecting laser radiation emitted from a semiconductor laser into an optical device and which overcome the hereinafore-mentioned disadvantages of the heretofore-known methods and devices of this general type in such a way that the optical device can be easily adjusted.
- In particular, it is an object to provide an optical system by means of which the radiation power to be injected into the optical device (optical conductor) can be varied in a simple manner.
- In particular, the convergent lens is provided with a structured coating in the form of a diaphragm (for example a perforated or zone diaphragm) for masking out a portion of the laser radiation emitted from the semiconductor laser emitter. This is achieved by configuring the convergent lens to pass only that portion of the laser beam emitted from the semiconductor laser emitter that is intended to be injected into the optical conductor.
- Masking out the laser radiation with a high divergence angle advantageously improves the quality of the focusing of the convergent lens. A major advantage of the optical system according to the invention is, in particular, that the portion of the beam emitted from the semiconductor laser emitter which is in any case not injected into the optical conductor is masked out. In consequence, receptacle components advantageously achieve the same eye safety as pigtail components.
- With the foregoing and other objects in view there is provided, in accordance with the invention, an optical system that includes a semiconductor laser for emitting laser radiation, an optical device, and a convergent lens. The convergent lens is configured between the semiconductor laser and the optical device for injecting the emitted laser radiation into the optical device. The convergent lens is provided with a coating structured to have the form of a diaphragm for masking out a portion of the emitted laser radiation.
- In accordance with an added feature of the invention, there is provided a structured coating (diaphragm) which is preferably composed of metal, and which can be applied in a simple manner to the surface of the convergent lens, by means of vapor deposition. The convergent lens may be composed of glass, silicon or some other semiconductor material that passes the respective laser radiation wavelength. It is particularly preferred for the convergent lens to be a plano-convex lens, with the structured coating provided on the convex side.
- In accordance with an additional feature of the invention, there is provided a structured coating that is preferably in the form of a perforated diaphragm and that masks out the portion of the laser radiation whose divergence angle is greater than the acceptance angle of the optical conductor. The radiation power injected into the optical conductor is varied by varying the divergence angle below the value of the acceptance angle, without having to change the geometrical configuration of the entire system that includes the semiconductor laser emitter, convergent lens, and optical device that can be an optical conductor.
- In accordance with another feature of the invention, there is provided a structured coating that is preferably in the form of a zone diaphragm for masking out the high-intensity central beam. This reduces the injected power and increases the eye safety of receptacle versions.
- In accordance with a further feature of the invention, the optical system may be employed in an advantageous manner for coupling the laser beam of the semiconductor laser emitter in a multi-mode fiber. Only the fundamental mode of the multimode fiber is stimulated by masking out the laser radiation with a high divergence angle. The transmission characteristics of a single mode fiber are thus simulated in the multi-mode fiber.
- With the foregoing and other objects in view there is provided, in accordance with the invention, a method for producing a multiplicity of plano-convex focusing lenses. An Silicon wafer is first produced which is provided with a plurality of convex elevations on a first main surface, using photographic techniques and etching. A first metallic layer is applied which is by using photographic techniques and etching, structured such that, on the convex elevations, (ring-shaped) perforated diaphragms or disc-shaped zone diaphragms remain. Once its second main surface has been bonded onto an adhesive film, for example, the silicon wafer is then sliced through, for example, by sawing or cutting grinding, to form individual plano-convex convergent lenses with a perforated diaphragm or zone diaphragm.
- The use of the optical system according to the invention is, of course, not limited for injecting laser radiation into an optical fiber. It can be used in any apparatus in which only a portion of an available laser beam is intended to be injected into an optical device.
- Other features which are considered as characteristic for the invention are set forth in the appended claims.
- Although the invention is illustrated and described herein as embodied in a method for producing plano-convex convergence lenses, it is nevertheless not intended to be limited to the details shown, since various modifications and structural changes may be made therein without departing from the spirit of the invention and within the scope and range of equivalents of the claims.
- The construction and method of operation of the invention, however, together with additional objects and advantages thereof will be best understood from the following description of specific embodiments when read in connection with the accompanying drawings.
- FIG. 1 shows a schematic illustration of a section through a first exemplary embodiment and shows the beam path;
- FIG. 2 shows a schematic illustration of a section through a second exemplary embodiment and shows the beam path; and
- FIG. 3 shows a schematic illustration of the method for producing a plurality of optical systems as per the exemplary embodiments.
- Referring now to the figures of the drawing in detail and first, particularly, to FIG. 1 thereof, there is shown a convergent lens in the form of a spherical or aspherical silicon plano-
convex lens 2 that is configured between a semiconductor laser emitter 1 and anoptical conductor 3, in this case an optical fiber. The curved surface 7 of the plano-convex lens 2 is provided with aperforated diaphragm 4 thereon, which can include a metallic layer 6 or be a layer that is entirely composed of metal (for example A1). This perforateddiaphragm 4 masks out an edge region of the highly divergent radiation orlaser beam 5 emitted from the semiconductor laser emitter 1, allows only a center region of thelaser beam 5 around itsbeam axis 9 to pass therethrough, and converts this into aconvergent laser beam 8. Only this portion of thedivergent laser beam 5 is injected into theoptical conductor 3, specifically the optical fiber. - The
perforated diaphragm 4 is dimensioned, in particular, such that the convergence angle (or the divergence angle once again after passing through the focus) of the radiation to be injected is equal to or less than the acceptance angle of the optical fiber. This means that thediaphragm 4 masks out the portion of the laser radiation orbeam 5 that is in any case not injected into theoptical fiber 3. - The optical system shown in FIG. 1 may be used for injecting
laser radiation 5 into a multi-mode fiber that is provided as theoptical conductor 3. Masking out the laser radiation having a high divergence angle then results in only the fundamental mode being stimulated. The transmission characteristics of a single-mode fiber are thus simulated in the multi-mode fiber. - The exemplary embodiment shown in FIG. 2 differs from that in FIG. 1 essentially in that a
zone diaphragm 4′, which is in the form of a disc and is a metallic layer 6′ is provided instead of theperforated diaphragm 4 shown in FIG. 1. Thiszone diaphragm 4′ masks out the high-intensity central beam of thelaser beam 5 emitted from the semiconductor laser emitter 1. - A method for producing a plurality of plano-convex
convergent lenses 2, made of silicon, in which aperforated diaphragm 4 is applied to the convex side 7, is shown schematically in FIG. 2. The method includes the following method steps: - a) producing a
silicon semiconductor wafer 10; - b) producing a plurality of
convex projections 11 on a firstmain surface 12 of thesilicon wafer 10 by means of a photographic technique and etching; - c) applying a
metal layer 13 to the entire firstmain surface 12; - d) structuring the
metal layer 12 by means of a photographic technique and etching, in such a manner that adiaphragm 4 remains on eachconvex projection 11; and - e) slicing through the
silicon wafer 10 between theconvex projections 11, alongseparation lines 14, to form individual plano-convex convergence lenses 2 with adiaphragm 4 - A plurality of plano-convex
convergent lenses 2 withzone diaphragms 4′ can be produced, for example, using an analogous method.
Claims (2)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US09/863,954 US6461799B2 (en) | 1997-09-22 | 2001-05-23 | Method for producing plano-convex convergence lenses |
Applications Claiming Priority (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19741702.7 | 1997-09-22 | ||
DE19741702 | 1997-09-22 | ||
DE19741702 | 1997-09-22 | ||
PCT/DE1998/002767 WO1999015926A1 (en) | 1997-09-22 | 1998-09-17 | Optical system for injecting laser radiation into an optical fibre and method for making same |
US09/533,562 US6434297B1 (en) | 1997-09-22 | 2000-03-22 | Optical system for injecting laser radiation into an optical conductor, and a method for its production |
US09/863,954 US6461799B2 (en) | 1997-09-22 | 2001-05-23 | Method for producing plano-convex convergence lenses |
Related Parent Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US09/533,562 Division US6434297B1 (en) | 1997-09-22 | 2000-03-22 | Optical system for injecting laser radiation into an optical conductor, and a method for its production |
Publications (2)
Publication Number | Publication Date |
---|---|
US20010026658A1 true US20010026658A1 (en) | 2001-10-04 |
US6461799B2 US6461799B2 (en) | 2002-10-08 |
Family
ID=7843172
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US09/533,562 Expired - Fee Related US6434297B1 (en) | 1997-09-22 | 2000-03-22 | Optical system for injecting laser radiation into an optical conductor, and a method for its production |
US09/863,954 Expired - Fee Related US6461799B2 (en) | 1997-09-22 | 2001-05-23 | Method for producing plano-convex convergence lenses |
Family Applications Before (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US09/533,562 Expired - Fee Related US6434297B1 (en) | 1997-09-22 | 2000-03-22 | Optical system for injecting laser radiation into an optical conductor, and a method for its production |
Country Status (6)
Country | Link |
---|---|
US (2) | US6434297B1 (en) |
EP (1) | EP1018053B1 (en) |
JP (1) | JP2001517810A (en) |
CA (1) | CA2303885A1 (en) |
DE (1) | DE59810104D1 (en) |
WO (1) | WO1999015926A1 (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20030143771A1 (en) * | 1999-11-15 | 2003-07-31 | Matsushita Electric Industrial Co., Ltd. | Method of fabricating nitride semiconductor, method of fabricating nitride semiconductor device, nitride semiconductor device, semiconductor light emitting device and method of fabricating the same |
WO2006066543A1 (en) * | 2004-12-21 | 2006-06-29 | Osram Opto Semiconductors Gmbh | Lens, laser arrangement and method for producing a laser arrangement |
US9916018B1 (en) | 2005-01-27 | 2018-03-13 | Reynolds & Reynolds Holdings, Inc. | Transaction automation and archival system using electronic contract disclosure units |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2002243987A (en) * | 2001-02-13 | 2002-08-28 | Sony Corp | Optical coupling device |
US20030072525A1 (en) * | 2001-06-29 | 2003-04-17 | Theodore Sjodin | Multi-mode fiber bandwidth enhancement using an optical fiber coupler |
US7302148B2 (en) * | 2005-01-13 | 2007-11-27 | Komag, Inc. | Test head for optically inspecting workpieces |
US7375362B2 (en) * | 2005-01-13 | 2008-05-20 | Wd Media, Inc. | Method and apparatus for reducing or eliminating stray light in an optical test head |
JP2009265392A (en) * | 2008-04-25 | 2009-11-12 | Hitachi Cable Ltd | Optical transmitter |
Family Cites Families (17)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4977407A (en) * | 1981-07-23 | 1990-12-11 | Crane Patrick E | Optical collimator |
US4753521A (en) * | 1984-09-19 | 1988-06-28 | Siemens Aktiengesellschaft | Lens system for focussing a divergent laser beam |
JPS61248490A (en) * | 1985-04-26 | 1986-11-05 | Hitachi Ltd | Measurement apparatus for semiconductor laser |
US4752109A (en) * | 1986-09-02 | 1988-06-21 | Amp Incorporated | Optoelectronics package for a semiconductor laser |
DE3634187A1 (en) * | 1986-10-03 | 1988-04-07 | Siemens Ag | Optical arrangement for injecting light into a 50 mu m gradient fibre |
US4842360A (en) * | 1987-06-18 | 1989-06-27 | Summit Technology, Inc. | High energy laser-to-waveguide coupling devices and methods |
JPH02127605A (en) * | 1988-11-08 | 1990-05-16 | Toshiba Corp | Optical component device |
US4998794A (en) * | 1989-10-27 | 1991-03-12 | The Spectranetics Corporation | Meniscus lens for coupling an excimer beam into an optical fiber |
US5316640A (en) * | 1991-06-19 | 1994-05-31 | Matsushita Electric Industrial Co., Ltd. | Fabricating method of micro lens |
US5309542A (en) * | 1991-09-18 | 1994-05-03 | International Business Machines Corporation | Fiber optic transmitter modification for improved extinction ratio |
DE4133220C2 (en) | 1991-10-07 | 1994-12-15 | Siemens Ag | Fiber-lens arrangement for optical coupling |
US5243681A (en) * | 1992-04-13 | 1993-09-07 | Amp Incorporated | Aperture disk attenuator for laser diode connector |
US5316527A (en) | 1992-06-18 | 1994-05-31 | Gregory Lekhtman | Collapsible support for running in place exercising |
DE4307986A1 (en) | 1993-03-13 | 1994-09-15 | Hirschmann Richard Gmbh Co | Optical transmission device |
US5633527A (en) * | 1995-02-06 | 1997-05-27 | Sandia Corporation | Unitary lens semiconductor device |
EP0780707A1 (en) * | 1995-12-21 | 1997-06-25 | Heraeus Quarzglas GmbH | Element for UV high energy radiation transmission and method of fabrication of such an element and its utilisation |
US5853960A (en) * | 1998-03-18 | 1998-12-29 | Trw Inc. | Method for producing a micro optical semiconductor lens |
-
1998
- 1998-09-17 EP EP98956776A patent/EP1018053B1/en not_active Expired - Lifetime
- 1998-09-17 CA CA002303885A patent/CA2303885A1/en not_active Abandoned
- 1998-09-17 WO PCT/DE1998/002767 patent/WO1999015926A1/en active IP Right Grant
- 1998-09-17 DE DE59810104T patent/DE59810104D1/en not_active Expired - Fee Related
- 1998-09-17 JP JP2000513168A patent/JP2001517810A/en active Pending
-
2000
- 2000-03-22 US US09/533,562 patent/US6434297B1/en not_active Expired - Fee Related
-
2001
- 2001-05-23 US US09/863,954 patent/US6461799B2/en not_active Expired - Fee Related
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20030143771A1 (en) * | 1999-11-15 | 2003-07-31 | Matsushita Electric Industrial Co., Ltd. | Method of fabricating nitride semiconductor, method of fabricating nitride semiconductor device, nitride semiconductor device, semiconductor light emitting device and method of fabricating the same |
US6720586B1 (en) * | 1999-11-15 | 2004-04-13 | Matsushita Electric Industrial Co., Ltd. | Method of fabricating nitride semiconductor, method of fabricating nitride semiconductor device, nitride semiconductor device, semiconductor light emitting device and method of fabricating the same |
US6911351B2 (en) | 1999-11-15 | 2005-06-28 | Matsushita Electric Industrial Co., Ltd. | Method of fabricating nitride semiconductor, method of fabricating nitride semiconductor device, nitride semiconductor device, semiconductor light emitting device and method of fabricating the same |
WO2006066543A1 (en) * | 2004-12-21 | 2006-06-29 | Osram Opto Semiconductors Gmbh | Lens, laser arrangement and method for producing a laser arrangement |
US20110102914A1 (en) * | 2004-12-21 | 2011-05-05 | Osram Opto Semiconductors Gmbh | Lens, Laser Arrangement and Method for Producing a Laser Arrangement |
US8072692B2 (en) | 2004-12-21 | 2011-12-06 | Osram Opto Semiconductors Gmbh | Lens, laser arrangement and method for producing a laser arrangement |
US9916018B1 (en) | 2005-01-27 | 2018-03-13 | Reynolds & Reynolds Holdings, Inc. | Transaction automation and archival system using electronic contract disclosure units |
Also Published As
Publication number | Publication date |
---|---|
US6461799B2 (en) | 2002-10-08 |
WO1999015926A1 (en) | 1999-04-01 |
EP1018053B1 (en) | 2003-11-05 |
JP2001517810A (en) | 2001-10-09 |
EP1018053A1 (en) | 2000-07-12 |
CA2303885A1 (en) | 1999-04-01 |
US6434297B1 (en) | 2002-08-13 |
DE59810104D1 (en) | 2003-12-11 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US4456330A (en) | Optical coupling system and method for manufacturing same | |
US6416237B2 (en) | Microsystem module | |
JP2018533033A (en) | Optical component having beam deflection element, method for manufacturing the same, and beam deflection element suitable for the component | |
JP2001514395A (en) | Integrated beam shaper and method of using same | |
WO2007047086A2 (en) | Diode laser array coupling optic and system | |
US6921214B2 (en) | Optical apparatus and method for coupling output light from a light source to an optical waveguide | |
US4830453A (en) | Device for optically coupling a radiation source to an optical transmission fiber | |
US6461799B2 (en) | Method for producing plano-convex convergence lenses | |
US7218804B2 (en) | Method and device for establishing an optical connection between an optoelectronic component and an optical waveguide | |
CN109633837A (en) | Optical module | |
US20040022488A1 (en) | Optical fiber coupler having a relaxed alignment tolerance | |
US7422377B2 (en) | Micro-module with micro-lens | |
US6661951B1 (en) | Optoelectric alignment apparatus | |
US10302871B2 (en) | Microfabricated fiber optic platform | |
CN108508544B (en) | Optical coupling system and optical coupling method | |
JP2896947B2 (en) | Optical fiber end structure and method of manufacturing the same | |
JPH0996760A (en) | Optical device | |
US7076129B2 (en) | Apparatus and method for a filterless parallel WDM multiplexer | |
JPH0990159A (en) | Optical module and its assembly method | |
JPH11218638A (en) | Optical constituent element | |
US20140084148A1 (en) | Optical-quality cover for use with an optical coupling system, and an optical communications module that incorporates the optical-quality cover | |
US6748139B2 (en) | Coupler utilizing a diffractive optical element for coupling light to an optical waveguide | |
JP2002328244A (en) | Optical component | |
US11953737B2 (en) | Systems and methods for coupling light | |
JPS6133269B2 (en) |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
AS | Assignment |
Owner name: INFINEON TECHNOLOGIES FIBER OPTICS GMBH,GERMANY Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:INFINEON TECHNOLOGIES AG;REEL/FRAME:017790/0927 Effective date: 20060215 Owner name: INFINEON TECHNOLOGIES FIBER OPTICS GMBH, GERMANY Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:INFINEON TECHNOLOGIES AG;REEL/FRAME:017790/0927 Effective date: 20060215 |
|
REMI | Maintenance fee reminder mailed | ||
AS | Assignment |
Owner name: EZCONN CORPORATION,TAIWAN Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:INFINEON TECHNOLOGIES FIBER OPTICS GMBH;REEL/FRAME:017615/0083 Effective date: 20060214 Owner name: EZCONN CORPORATION, TAIWAN Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:INFINEON TECHNOLOGIES FIBER OPTICS GMBH;REEL/FRAME:017615/0083 Effective date: 20060214 |
|
LAPS | Lapse for failure to pay maintenance fees | ||
LAPS | Lapse for failure to pay maintenance fees |
Free format text: PATENT EXPIRED FOR FAILURE TO PAY MAINTENANCE FEES (ORIGINAL EVENT CODE: EXP.); ENTITY STATUS OF PATENT OWNER: LARGE ENTITY |
|
STCH | Information on status: patent discontinuation |
Free format text: PATENT EXPIRED DUE TO NONPAYMENT OF MAINTENANCE FEES UNDER 37 CFR 1.362 |
|
FP | Lapsed due to failure to pay maintenance fee |
Effective date: 20061008 |