WO2004079422A1 - 光モジュール及び光送受信装置 - Google Patents
光モジュール及び光送受信装置 Download PDFInfo
- Publication number
- WO2004079422A1 WO2004079422A1 PCT/JP2004/002970 JP2004002970W WO2004079422A1 WO 2004079422 A1 WO2004079422 A1 WO 2004079422A1 JP 2004002970 W JP2004002970 W JP 2004002970W WO 2004079422 A1 WO2004079422 A1 WO 2004079422A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- optical fiber
- optical
- ferrule
- module according
- adhesive
- Prior art date
Links
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
- G02B6/24—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
-
- 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
- G02B6/36—Mechanical coupling means
- G02B6/38—Mechanical coupling means having fibre to fibre mating means
- G02B6/3807—Dismountable connectors, i.e. comprising plugs
- G02B6/381—Dismountable connectors, i.e. comprising plugs of the ferrule type, e.g. fibre ends embedded in ferrules, connecting a pair of fibres
- G02B6/3818—Dismountable connectors, i.e. comprising plugs of the ferrule type, e.g. fibre ends embedded in ferrules, connecting a pair of fibres of a low-reflection-loss type
- G02B6/3822—Dismountable connectors, i.e. comprising plugs of the ferrule type, e.g. fibre ends embedded in ferrules, connecting a pair of fibres of a low-reflection-loss type with beveled fibre ends
-
- 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
- G02B6/36—Mechanical coupling means
- G02B6/38—Mechanical coupling means having fibre to fibre mating means
- G02B6/3807—Dismountable connectors, i.e. comprising plugs
- G02B6/3833—Details of mounting fibres in ferrules; Assembly methods; Manufacture
- G02B6/3834—Means for centering or aligning the light guide within the ferrule
- G02B6/3835—Means for centering or aligning the light guide within the ferrule using discs, bushings or the like
- G02B6/3837—Means for centering or aligning the light guide within the ferrule using discs, bushings or the like forwarding or threading methods of light guides into apertures of ferrule centering means
-
- 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
- G02B6/36—Mechanical coupling means
- G02B6/38—Mechanical coupling means having fibre to fibre mating means
- G02B6/3807—Dismountable connectors, i.e. comprising plugs
- G02B6/3833—Details of mounting fibres in ferrules; Assembly methods; Manufacture
- G02B6/3855—Details of mounting fibres in ferrules; Assembly methods; Manufacture characterised by the method of anchoring or fixing the fibre within the ferrule
- G02B6/3861—Adhesive bonding
Definitions
- the distal end face of the optical fiber is inclined with respect to the radial direction.
- the present invention relates to an optical module that has a high power consumption and an optical transmitting and receiving apparatus configured to use the optical module for optical transmission and reception.
- FIG. 10 shows an optical transmission module as a conventional example (for example, see Patent Document 1).
- the coating is removed so that the optical fiber 2 is exposed, and the circumference of the optical fiber 2 at the end is made of a zirconia ferrule (hereinafter referred to as “zirconia ferrule”) 2 1
- zirconia ferrule zirconia ferrule
- the periphery of the zirconia ferrule 21 and the optical fiber 1 is supported by a metal ferrule 4 (hereinafter referred to as a metal ferrule).
- Patent Document 1 Japanese Patent Laid-Open Publication No. Hei 5-343709 (FIG. 7 (b), paragraphs 035 to 036)
- the LD (laser diode) 10 which is a semiconductor light emitting element facing the above-mentioned front end surface, is supported by a TO-CAN type LD stem 8 via a heat sink 9 and is a transparent TO-CAN type LD.
- the lens is sealed by a cap 7, and a lens 11 is provided on the cap 7.
- Stem 8 A mirror 18 is provided to obliquely reflect the back light of the LD 10 to prevent return light.
- the stem 8 is coupled to a flange 6 surrounding the optical lens 11 (15 in the figure), and the flange 6 is coupled to the sleeve 5 (14 in the figure).
- An object of the present invention is to solve the above-mentioned problems of the conventional example, and to provide an optical module capable of preventing return light with an inexpensive configuration and an optical transmitting and receiving apparatus configured to use such an optical module for optical transmission and reception. I do.
- the invention according to claim 2 is the optical module according to claim 1, wherein the optical fiber and the frule are joined by an adhesive,
- the configuration was such that the core of the optical fiber was exposed at the end face of the optical fiber.
- the invention according to claim 3 wherein the ferrule that supports the distal end of the optical fiber so as to project and the optical fiber are bonded with an adhesive having the same refractive index as the core of the optical fiber, and the optical fiber The end of the core was covered with the adhesive.
- the invention according to claim 4 is the optical module according to claim 1, wherein a length of the optical fiber exposed from the ferrule is in a range of 1 to 5 times a diameter of the optical fiber.
- the invention according to claim 5 is the optical module according to claim 1 or 3,
- a recess is formed in the fiber fixing portion of the ferrule from which the tip of the optical fiber projects, and the depth of the recess is larger than the height, which is the amount of protrusion of the fiber tip.
- the invention according to claim 6 is the optical module according to claim 5, A light-emitting element, wherein a height, which is an amount of protrusion of the protruding portion of the optical fiber, is set high so that an output signal light of the light-emitting element incident on the optical fiber does not irradiate a tip end surface of the ferrule. did.
- the invention according to claim 7 is the optical module according to claim 1 or 3,
- the ferrule includes a first ferrule that supports at least a strand of the optical fiber, a first ferrule and a second ferrule that supports the optical fiber, and the first ferrule is SUS 3 03, and the second ferrule was formed of SUS304.
- the invention according to claim 8 is the optical module according to claim 1 or 3,
- the surface of the ferrule, which is bonded to the optical fiber coating, has a groove capable of containing an adhesive.
- the bonding force between the fiber and the ferrule by the adhesive can be increased without using zirconia.
- an optical transmission / reception apparatus having a configuration in which the optical module according to any one of the first to eighth aspects is used for optical transmission and reception.
- FIG. 1 is a schematic configuration diagram showing an optical module according to a first embodiment of the present invention
- FIG. 2 is an enlarged view of a ferrule part in FIG. 1,
- FIG. 3 is a schematic configuration diagram illustrating an optical module according to a second embodiment of the present invention
- FIG. 4 is a schematic configuration diagram illustrating an optical module according to a third embodiment of the present invention
- FIG. FIG. 6 is a schematic configuration diagram illustrating an optical module according to a fourth embodiment of the present invention
- FIG. 6 is a schematic configuration diagram illustrating an optical module according to a fifth embodiment of the present invention
- FIG. FIG. 8 is a schematic configuration diagram illustrating an optical module according to an embodiment of the present invention.
- FIG. 8 is a schematic configuration diagram illustrating an optical module according to a seventh embodiment of the present invention.
- FIG. 9 illustrates an optical module according to an eighth embodiment of the present invention.
- FIG. 10 is a schematic configuration diagram showing a conventional optical module.
- FIG. 1 is a schematic configuration diagram showing an optical module according to the first embodiment of the present invention.
- the “optical module” of the present invention includes an optical transmitting module, an optical receiving module, and an optical transmitting / receiving module that perform optical transmission and / or optical reception.
- Fig. 2 shows the ferrule part of Fig. 1 on an enlarged scale.
- the ferrule portion is an optical fiber 1 provided with a coating, an optical fiber 2 with the coating removed at the end of the optical fiber 1, and a metal ferrule made of SUS303. (Hereinafter, also simply referred to as ferrule) 3, SUS304 power, and uranium metal ferrule 4 power.
- ferrule SUS303
- SUS304 SUS304 power
- the coating is removed so that the optical fiber 2 is exposed at the end of the optical fiber 1, and the end of the optical fiber 2 is cut diagonally.
- the diameter of 0.12 7 After forming a hole of 0.12 7 + 0.02 mm to expose the tip of the optical fiber 2 mm, a 0.9 mm ⁇ 1.1 mm for passing the optical fiber 1 make a cylindrical metal ferrule 3 by making a hole of ⁇ i> degree.
- a metal ferrule is formed by forming a hole of about 1.1 mm ⁇ for passing a 0.9 mm ⁇ optical fiber 1 and a hole for passing a metal ferrule 3 in a cylindrical metal part made of SUS304. Create 4.
- the metal ferrule 3 is inserted into the cavity of the metal ferrule 4 by press-fitting and joined, and the optical fiber 1 is inserted into the metal ferrule 3 so that the optical fiber 2 is exposed from the end face of the metal ferrule 3. Insert into hole 4.
- the optical fiber 1 and the metal ferrules 3 and 4 are bonded with an adhesive 17.
- the ferrule length is about 3 to 10 mm. Since the structure on the light emitting element side is the same as that of the conventional example, the description is omitted.
- the ferrules 3 and 4 are three-dimensionally aligned so that the signal light emitted from the LD 10 is coupled to the optical fiber 2 with the desired coupling efficiency, and then the sleeve 5 and the flange 6 are joined using a YAG welding device. I do.
- the signal light 12 emitted from the LD 10 is condensed by the optical lens 11 and then guided to the distal end surface of the optical fiber 2. Since the distal end surface of the optical fiber 2 is inclined at an angle ⁇ , the signal light 12 emitted from the LD 10 is coupled to the optical fiber 2 without being reflected.
- the joint between the ferrule 4 and the sleeve 5 is indicated by reference numeral 13
- the joint between the sleeve 5 and the flange 6 is indicated by reference numeral 14
- the joint between the flange 6 and the stem 8 is indicated by reference numeral 15. .
- the protrusion amount h of the optical fiber 2 is smaller than one time the diameter of the optical fiber 2, the adhesive 1 used for bonding the optical fiber 1 to the metal part holding the optical fiber 1 is used. The phenomenon that 7 adheres to the core of the optical fiber 2 frequently occurs.
- the protrusion amount h is larger than 5 times the diameter of the optical fiber 2. If the length is too long, a change in temperature will increase the amount of movement of the core position at the tip of the optical fiber 2, and the coupling efficiency between the LD 10 and the optical fiber 2 will decrease. In order to avoid these, the protrusion amount h is adjusted to be in the range of 1 to 5 times the diameter of the optical fiber 2. As described above, the resistance to temperature fluctuations and shocks increases, and good optical transmission and reception becomes possible.
- the amount of the adhesive 17 applied the application method, By adjusting the curing temperature so that the adhesive 17 does not adhere to the end face of the optical fiber 2, after the signal light emitted from the LD 10 is collected by the optical lens 11, The optical fiber 1 is coupled with the power required to communicate with the optical fiber 1, and good optical transmission / reception is possible.
- a hole having a diameter of about 0.126 mm for the optical fiber 2 in the center of a cylindrical metal part made of Ni a 0.9 mm ⁇ 1.
- the diameter and tolerance of the hole at the center of the Piano wire are determined by the diameter and tolerance of the pierced wire.
- the optical fiber 2 is passed through the hole so as to be exposed from the end face of the ferrule 19, and the ferrule 19, the optical fiber 2 and the optical fiber 1 are bonded together by bonding 1j17.
- the ferrule 4 and the optical fiber 2 that support the tip of the optical fiber 2 so that they protrude are bonded to the adhesive 17 that has the same refractive index as the core of the optical fiber 2.
- the end 23 of the core of the optical fiber 2 is covered with the adhesive.
- the height h which is the amount of protrusion of the optical fiber protrusion, is input to the optical fiber 2.
- the emission signal light 12 of the light emitting element 10 is raised (increased) so as not to irradiate the tip end face 22 of the ferrule 19, so that the light is emitted from the light emitting element 10 and collected by the optical lens 11.
- the coupling efficiency between the illuminated signal light 12 and the optical fiber 2 is increased, and good optical transmission / reception becomes possible.
- the fiber 17 with the adhesive 17 can be used without using zirconia. It is possible to increase the joining force between the ferrule 4 and the ferrule 4.
- the optical transmission module has been described in the above embodiment, the present invention can also be applied to an optical transmission and reception module. 5 Industrial applicability
- the first aspect of the present invention it is possible to prevent return light, and to eliminate the need for polishing the ferrule, thereby reducing man-hours and providing a lower-cost optical transmission / reception module. It becomes possible. Further, since the ferrule polishing step is eliminated, the length of the ferrule can be shortened to zero, so that the size can be reduced.
- the transmission light is condensed by the optical lens, the transmission light is coupled in a necessary manner to communicate with the optical fiber, thereby enabling good optical communication.
- the signal light emitted from the light emitting element is not scattered by the adhesive, so that good Optical communication becomes possible. Also, adhesives in manufacturing This eliminates the need to control whether the fibers adhere to the core end of the optical fiber, leading to an improvement in manufacturability.
- the distal end of the optical fiber is protected, handling is improved, and productivity is improved.
- the coupling efficiency between the transmission light and the optical fiber is increased, and good optical communication is possible.
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Optical Couplings Of Light Guides (AREA)
Abstract
Description
Claims
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2005503163A JPWO2004079422A1 (ja) | 2003-03-07 | 2004-03-08 | 光モジュール及び光送受信装置 |
US10/547,811 US20060147158A1 (en) | 2003-03-07 | 2004-03-08 | Optical module and optical transceiver |
EP04718419A EP1602954A4 (en) | 2003-03-07 | 2004-03-08 | OPTICAL MODULE AND TRANSMITTER-RECEIVER |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2003-061471 | 2003-03-07 | ||
JP2003061471 | 2003-03-07 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2004079422A1 true WO2004079422A1 (ja) | 2004-09-16 |
Family
ID=32958962
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2004/002970 WO2004079422A1 (ja) | 2003-03-07 | 2004-03-08 | 光モジュール及び光送受信装置 |
Country Status (5)
Country | Link |
---|---|
US (1) | US20060147158A1 (ja) |
EP (1) | EP1602954A4 (ja) |
JP (1) | JPWO2004079422A1 (ja) |
CN (1) | CN1759337A (ja) |
WO (1) | WO2004079422A1 (ja) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2008268772A (ja) * | 2007-04-24 | 2008-11-06 | Bridgestone Corp | 情報表示用パネルの製造方法 |
JP2010139872A (ja) * | 2008-12-12 | 2010-06-24 | Sumitomo Electric Ind Ltd | 光モジュール、及び光モジュールの製造方法 |
Families Citing this family (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7352935B2 (en) * | 2004-08-17 | 2008-04-01 | Kabushiki Kaisha Toshiba | Optoelectronic conversion header, LSI package with interface module, method of manufacturing optoelectronic conversion header, and optical interconnection system |
US20100178009A1 (en) * | 2006-06-30 | 2010-07-15 | Masum Choudhury | Polymer Layer at Fiber Ends in Fiber Optic Connectors and Related Methods |
JP5277617B2 (ja) * | 2007-11-26 | 2013-08-28 | 住友電気工業株式会社 | 光モジュール |
EP2232656A4 (en) * | 2007-12-17 | 2014-04-16 | Ii Vi Laser Entpr Gmbh | LASER MASTER MODULES AND ASSEMBLY METHOD |
EP2283549A4 (en) | 2008-05-08 | 2013-08-28 | Oclaro Photonics Inc | HIGH BRIGHTNESS DIODE OUTPUT METHODS AND DEVICES |
JP5740654B2 (ja) | 2010-01-22 | 2015-06-24 | トゥー−シックス レイザー エンタープライズ ゲーエムベーハー | 遠視野ファイバ結合放射の均質化 |
CA2942644C (en) * | 2014-03-17 | 2020-08-04 | Fujikura Ltd. | Method of manufacturing optical connector, optical connector, and optical fiber insertion device |
CN205899082U (zh) * | 2016-06-24 | 2017-01-18 | 上海坤腾光电科技有限公司 | 一种并行的光纤转角耦合组件 |
DE102017102885B4 (de) * | 2017-02-14 | 2019-05-02 | Harting Electric Gmbh & Co. Kg | Optischer Steckverbinder, Steckverbindermodul und Verfahren zur Detektion von Signalverlusten bei einem optischen Steckverbindermodul |
JP6829124B2 (ja) * | 2017-03-22 | 2021-02-10 | テルモ株式会社 | 画像診断装置 |
US11199671B2 (en) * | 2020-04-21 | 2021-12-14 | Hewlett Packard Enterprise Development Lp | Glass-as-a-platform (GaaP)-based photonic assemblies comprising shaped glass plates |
CN111399138A (zh) * | 2020-06-05 | 2020-07-10 | 苏州长光华芯光电技术有限公司 | 一种光纤耦合散热结构及光纤输入头 |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
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JPS593408A (ja) * | 1982-06-29 | 1984-01-10 | Nippon Sheet Glass Co Ltd | 光フアイバ−用端子およびその製造方法 |
JPS606106U (ja) * | 1983-06-25 | 1985-01-17 | 日本電気株式会社 | 光フアイバ用コネクタ |
JPS63193112A (ja) * | 1987-02-06 | 1988-08-10 | Fujitsu Ltd | 光半導体素子と光フアイバとの光結合構造 |
JPH07120640A (ja) * | 1993-10-27 | 1995-05-12 | Hitachi Cable Ltd | 光半導体装置 |
JPH09152524A (ja) * | 1995-11-30 | 1997-06-10 | Kyocera Corp | ファイバスタブ及びその製造方法 |
JPH11295564A (ja) * | 1998-04-10 | 1999-10-29 | Sumitomo Metal Mining Co Ltd | 光アイソレータモジュールと光アイソレータ部品 |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
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US4512630A (en) * | 1975-11-11 | 1985-04-23 | At&T Bell Laboratories | Optical fiber connector |
US4281891A (en) * | 1978-03-27 | 1981-08-04 | Nippon Electric Co., Ltd. | Device for excellently coupling a laser beam to a transmission medium through a lens |
US5386488A (en) * | 1992-04-02 | 1995-01-31 | Fujitsu Limited | Optical module and manufacturing method therefor |
JPH08338927A (ja) * | 1995-06-13 | 1996-12-24 | Oki Electric Ind Co Ltd | 光結合器及びその組立方法 |
WO1997028478A1 (fr) * | 1996-01-31 | 1997-08-07 | Nippon Sheet Glass Co., Ltd. | Module optique et procede pour le fabriquer |
US6062740A (en) * | 1997-08-25 | 2000-05-16 | Sumitomo Electric Industries, Ltd. | Optical connector and method of making the same |
US6106368A (en) * | 1998-11-18 | 2000-08-22 | Siecor Operations, Llc | Polishing method for preferentially etching a ferrule and ferrule assembly |
IT1316213B1 (it) * | 2000-09-15 | 2003-04-03 | Optotec Spa | Dispositivo terminatore ottico con fibra |
US6805491B2 (en) * | 2002-05-20 | 2004-10-19 | Stratos International, Inc. | Stub having an optical fiber |
-
2004
- 2004-03-08 EP EP04718419A patent/EP1602954A4/en not_active Withdrawn
- 2004-03-08 CN CN200480006227.1A patent/CN1759337A/zh active Pending
- 2004-03-08 WO PCT/JP2004/002970 patent/WO2004079422A1/ja not_active Application Discontinuation
- 2004-03-08 JP JP2005503163A patent/JPWO2004079422A1/ja active Pending
- 2004-03-08 US US10/547,811 patent/US20060147158A1/en not_active Abandoned
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS593408A (ja) * | 1982-06-29 | 1984-01-10 | Nippon Sheet Glass Co Ltd | 光フアイバ−用端子およびその製造方法 |
JPS606106U (ja) * | 1983-06-25 | 1985-01-17 | 日本電気株式会社 | 光フアイバ用コネクタ |
JPS63193112A (ja) * | 1987-02-06 | 1988-08-10 | Fujitsu Ltd | 光半導体素子と光フアイバとの光結合構造 |
JPH07120640A (ja) * | 1993-10-27 | 1995-05-12 | Hitachi Cable Ltd | 光半導体装置 |
JPH09152524A (ja) * | 1995-11-30 | 1997-06-10 | Kyocera Corp | ファイバスタブ及びその製造方法 |
JPH11295564A (ja) * | 1998-04-10 | 1999-10-29 | Sumitomo Metal Mining Co Ltd | 光アイソレータモジュールと光アイソレータ部品 |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2008268772A (ja) * | 2007-04-24 | 2008-11-06 | Bridgestone Corp | 情報表示用パネルの製造方法 |
JP2010139872A (ja) * | 2008-12-12 | 2010-06-24 | Sumitomo Electric Ind Ltd | 光モジュール、及び光モジュールの製造方法 |
Also Published As
Publication number | Publication date |
---|---|
JPWO2004079422A1 (ja) | 2006-06-08 |
US20060147158A1 (en) | 2006-07-06 |
CN1759337A (zh) | 2006-04-12 |
EP1602954A1 (en) | 2005-12-07 |
EP1602954A4 (en) | 2006-07-05 |
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