WO2007135897A1 - 光送受信デバイス - Google Patents
光送受信デバイス Download PDFInfo
- Publication number
- WO2007135897A1 WO2007135897A1 PCT/JP2007/059951 JP2007059951W WO2007135897A1 WO 2007135897 A1 WO2007135897 A1 WO 2007135897A1 JP 2007059951 W JP2007059951 W JP 2007059951W WO 2007135897 A1 WO2007135897 A1 WO 2007135897A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- light
- groove
- disposed
- front surface
- emitting element
- 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.)
- Ceased
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
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01S—DEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL
- H01S5/00—Semiconductor lasers
- H01S5/02—Structural details or components not essential to laser action
- H01S5/022—Mountings; Housings
- H01S5/023—Mount members, e.g. sub-mount members
- H01S5/02325—Mechanically integrated components on mount members or optical micro-benches
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01S—DEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL
- H01S5/00—Semiconductor lasers
- H01S5/02—Structural details or components not essential to laser action
- H01S5/022—Mountings; Housings
- H01S5/0239—Combinations of electrical or optical elements
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
- H04B10/40—Transceivers
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10F—INORGANIC SEMICONDUCTOR DEVICES SENSITIVE TO INFRARED RADIATION, LIGHT, ELECTROMAGNETIC RADIATION OF SHORTER WAVELENGTH OR CORPUSCULAR RADIATION
- H10F77/00—Constructional details of devices covered by this subclass
-
- 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
- G02B6/4246—Bidirectionally operating package structures
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01S—DEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL
- H01S5/00—Semiconductor lasers
- H01S5/02—Structural details or components not essential to laser action
- H01S5/022—Mountings; Housings
- H01S5/0235—Method for mounting laser chips
- H01S5/02355—Fixing laser chips on mounts
- H01S5/0237—Fixing laser chips on mounts by soldering
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10W—GENERIC PACKAGES, INTERCONNECTIONS, CONNECTORS OR OTHER CONSTRUCTIONAL DETAILS OF DEVICES COVERED BY CLASS H10
- H10W90/00—Package configurations
Definitions
- the present invention relates to an optical transmission / reception device.
- a light emitting element, a light receiving element, a light emitting element and a light receiving element are accommodated, a base having an opening, a light transmitting member attached to the opening of the base, a light emitting element,
- a device including a light shielding member disposed between the light receiving element and the light receiving element is known (for example, see Patent Document 1).
- Patent Document 1 JP 2001-61796 A
- the optical transmission / reception device due to its structure, high accuracy is required for the dimensions and arrangement positions of each component. For this reason, if the accuracy drops even a little, the light shielding between the light emitting element and the light receiving element may be insufficient. Specifically, a part of the light emitted from the light emitting element is multiple-reflected in the light transmitting member and travels in the light transmitting member to reach the light receiving element as unnecessary light, resulting from this unnecessary light. There is a risk that the noise current will increase and the detection accuracy of scattered light, etc. incident on external force will deteriorate.
- the present invention has been made in view of such circumstances, and an object thereof is to provide an optical transmission / reception device capable of accurately detecting incident light from the outside.
- an optical transmission / reception device includes a light emitting element for emitting light forward, a light receiving element for receiving light irradiated with a forward force, and a light emitting element.
- a groove having at least one end opened on the side surface of the light transmitting member is formed, and the light-shielding resin portion reaches the groove
- the optical transmission / reception device has a light emitting element for emitting light forward, a light receiving element for receiving light emitted from the front, and a recess in which the light emitting element and the light receiving element are arranged.
- a substrate formed on the front surface, a first light passage hole disposed on the front surface side of the substrate, through which light emitted from the light emitting element passes, and a second light passage through which light received by the light receiving device passes.
- the first light passage hole and the second light passage as seen from the front Passes between the, and, at least one end side of the light transmitting member is formed with a groove which is open, the light shielding ⁇ unit is characterized by being led into the groove.
- the light transmission member when viewed from the front, passes between the first light passage hole and the second light passage hole, and at least on the side surface of the light transmission member.
- a groove having an opening at one end is formed, and a light-shielding resin portion is provided in the groove.
- the deepest portion of the groove is located on the front surface of the light shielding member or on the rear side of the front surface. In this case, it is possible to ensure the light shielding between the light emitting element and the light receiving element.
- the deepest portion of the groove is located behind the front end of the envelope. to this Therefore, when the light shielding resin is allowed to flow to the front end of the envelope in order to form the light shielding resin part, the light shielding resin can be reliably and easily flowed into the groove. It is possible to reach the department.
- both ends of the groove are open to the side surface of the light transmitting member.
- the light-shielding resin can flow into the groove more reliably and easily.
- FIG. 1 is a perspective view of an optical transmission / reception device according to a first embodiment.
- FIG. 2 is an end view taken along the line II-II shown in FIG.
- FIG. 3 is an exploded perspective view of a main body portion of the optical transmission / reception device shown in FIG.
- FIG. 4 is an end view corresponding to FIG. 2 of an optical transmission / reception device according to a second embodiment.
- the optical transmission / reception device 1 includes an envelope 2 made of a plastic material and formed in a rectangular parallelepiped cup shape that opens forward. .
- a main body 4 containing an LD (light emitting element) 9 for emitting light forward and a PD (light receiving element) 12 for receiving light irradiated from the front.
- LD light emitting element
- PD light receiving element
- the light-shielding resin part 3 is made of a light-shielding resin such as silicon resin containing an insulating-coated carbon filler, and fixes the main body part 4 in the envelope 2 and This reduces the effect of ambient light incident on PD12.
- a light-shielding resin such as silicon resin containing an insulating-coated carbon filler
- the main body 4 has a base body 5 on the bottom surface side in the envelope 2.
- the base body 5 is formed of, for example, silicon, which is a semiconductor material, into a rectangular plate shape having a width of 2.8 mm, a length of 6.0 mm, and a thickness of 1. Omm.
- a first cavity (first recess) 7 and a second cavity (second recess) 8 are formed.
- An LD 9 is disposed in the first cavity 7 and is electrically connected to an LD anode 10 and an LD force sword 11 described later.
- a PD 12 is disposed in the second cavity 8 and is electrically connected to a PD anode 13 and a PD force sword 14 described later.
- the cavities 7 and 8 are formed, for example, by performing wet etching on a silicon substrate to be the base 5. Specifically, for the cavities 7 and 8, a mask having SiN isotropic force for defining the shape of the cavities 7 and 8 is provided on the surface of the silicon substrate serving as the base 5, and an etchant is applied to the opening of the mask. Is formed. After the etching, the SiN mask is removed, and an insulating film 40 having a thickness of, for example, SiO force is formed at least on the cavity surface and the substrate surface by thermal oxidation.
- the LD 9 uses, for example, a VCSEL (surface emitting laser) made of a compound semiconductor material and having a thickness of 0.2 mm, and emits light having a wavelength of 850 nm.
- a VCSEL surface emitting laser
- an LD terminal electrode 15 is provided on the front end face
- an LD terminal electrode 16 is provided on the rear end face.
- PD12 uses, for example, a 0.3 mm thick Si-PD or GaAs-PD made of a semiconductor material.
- a PD terminal electrode 17 and a PD terminal electrode 18 are provided on the front end face.
- the material of the PD 12 is selected according to the wavelength of light emitted from the LD 9.
- the wavelength of light emitted by LD9 is 780 nm
- Si or GaAs is used as the material of PD12
- the wavelength of light emitted by LD9 is 1.31 ⁇ m
- the material of PD12 InGaAs is used as the material of PD12
- the base wiring portion 19 is formed with a predetermined pattern from a laminated film of —Pt—Au or a laminated film of Cr—Pt—Au.
- the substrate wiring portion 19 has an LD anode 10 and an LD force sword 11 on the first cavity 7 side, and a PD anode 13 and a PD force sword 14 on the second cavity 8 side. .
- These LD anode 10, LD force sword 11, PD anode 13, and PD force sword 14 are connected to the four corners at the bottom of envelope 2 via wire 24 as shown in FIGS. 1 and 2.
- the base terminal wiring portion 19 formed on the insulating film 40 on the bottom surface of the first cavity 7 is electrically connected to the LD terminal electrode 16 of the LD 9 via, for example, solder or conductive grease,
- the LD terminal electrode 15 of the LD 9 is electrically connected to the substrate wiring portion 19 formed on the insulating film 40 on the front surface 5a of the substrate 5 through, for example, a wire (not shown). .
- the LD 9 is electrically connected to each of the LD anode 10 and the LD force sword 11.
- the insulating film 40 on the front surface 5a of the substrate 5 is made of, for example, SiO.
- a light shielding member 20 formed of a rectangular substrate having a thickness of 0.15 mm to 0.30 mm is laminated and fixed by bump bonding 21.
- the material for the bump bonding 21 include Au, Ni, Cu, AuSn, and SnAg type solders.
- the portion between the first cavity 7 and the second cavity 8 is bump-bonded 21 so that it does not reach the PD 12 from the gap between the light power substrate 5 and the light shielding member 20 emitted from the LD 9. It is preferable to spread the floor.
- a light shielding part may be formed by applying or filling a light shielding material.
- the light shielding member 20 has an opening (first light passage hole) 22 provided at a position corresponding to the first cavity 7 and a pinhole provided at a position corresponding to the second cavity 8. (Second light passage hole) 23 is formed.
- the opening 22 is for introducing light emitted from the LD 9 to the outside.
- the pinhole 23 guides scattered light from the outside to the PD 12 and prevents external disturbance light and unnecessary light from entering the PD 12.
- the opening 22 and the pinhole 23 are formed, for example, by performing dry etching on a silicon substrate that becomes the light shielding member 20, and the pinhole 23 has a high aspect ratio.
- the pinhole 23 is formed at a position corresponding to the light receiving surface of the PD 12, and the diameter thereof is, for example, 30 ⁇ m to 90 ⁇ m! This is because the diameter of the pinhole 23 is larger than 90 ⁇ m! / ⁇ and the noise due to the external light disturbance and unwanted light detected by the PD12 increases, while the pinhole 23 has a diameter force of 0 m. If it is small, the light received by the PD12 will decrease, and the output from the PD12 will decrease.
- a light shielding member wiring part 25 is formed with a predetermined pattern on the insulating film 41 on the rear surface 20b of the light shielding member 20, and is electrically connected to the base wiring part 19 by a bump bonding 21.
- the PD terminal electrodes 17 and 18 of the PD 12 are electrically connected by bump bonding 21 to the portion corresponding to the second cavity 8 in the light shielding member wiring portion 25 (so-called flip chip bonding).
- the PD 12 is electrically connected to each of the PD node 13 and the PD force sword 14.
- the thickness of the insulating film 41 on the front surface 20a of the light shielding member 20 is, for example, made of alkali-containing borosilicate glass so that light emitted from the LD 9 and scattered light from the outside are transmitted.
- a light transmission member 27 formed in a rectangular plate shape of 3 mm is laminated and fixed by grease. The light transmitting member 27 enhances the mechanical strength of the light shielding member 20 and seals and packages the first cavity 7 and the second cavity 8 of the base body 5. Since the light transmitting member 27 is fixed to the light shielding member 20, the coefficient of thermal expansion of the light transmitting member 27 and the coefficient of thermal expansion of the light shielding member 20 are substantially equal. In this case, the light shielding member 20 and the light transmitting member 27 may be fixed by anodic bonding. In this case, the insulating film 41 is unnecessary.
- the light transmission member 27 is laminated and fixed on the front surface 20a of the light shielding member 20, and the light shielding resin portion is disposed in the area around the main body portion 4 in the envelope 2. 3 is filled so that the light transmitting member 27 is securely fixed.
- the light transmission member 27 passes through the front surface 27 a of the light transmission member 27 between the opening 22 and the pinhole 23 when viewed from the front (the upper side in the drawing) and the side surface of the light transmission member 27.
- a groove 28 having both ends opened is formed in 27 c, and the light-shielding resin portion 3 reaches the groove 28.
- the groove 28 is formed by, for example, Daishinka Kae, and its width is lOO ⁇ m-200
- the bottom surface (deepest part) 28a is ⁇ m, and the light shielding member 20 has a front surface 20a.
- the bottom surface 28a of the groove 28 is located behind (the lower side in the figure) behind the front end surface (front end) 2a of the envelope 2.
- the light shielding resin is allowed to flow into the front end surface 2a of the envelope 2, and the light shielding resin is prevented from adhering to the front surface 27a of the light transmitting member 27.
- the front surface 27 a of the transmissive member 27 is positioned in front of the front end surface 2 a of the envelope 2.
- a voltage is applied to the LD anode 10 and the LD force sword 11 of the base wiring portion 19 to enter the first cavity 7 of the base 5.
- Light is emitted from the placed LD9.
- This light passes through the opening 22 formed in the light shielding member 20, passes through the light transmitting member 27, and is emitted to the outside.
- the light emitted to the outside is scattered by the object, and a part of the scattered light travels in the direction opposite to the traveling direction of the light emitted from the LD 9 and passes through the light transmitting member 27.
- the light passes through the pinhole 23 formed in the light shielding member 20 and reaches the PD 12 disposed in the second cavity 8 of the base body 5.
- the PD signal 13 and the PD force sword 14 force of the substrate wiring portion 19 are also obtained as the electric signal corresponding to the reached light.
- the light transmitting member 27 passes through the front surface 27a between the opening 22 and the pinhole 23 as viewed from the front, and A groove 28 is formed in the side surface 27c of the transmission member 27, and the light shielding resin portion 3 reaches the groove 28.
- the light reflected by the light shielding resin portion 3 in the groove 28 reaches the PD 12 as unnecessary light as unnecessary light. It is prevented. Therefore, detection of noise current caused by this unnecessary light can be prevented, and incident light from the outside can be detected with high accuracy.
- the bottom surface 28a of the groove 28 is located on the front surface 20a of the light shielding member 20, light shielding between the LD9 and the PD12 can be ensured reliably.
- the front surface force of the bottom portion at the four corners of the bottom portion of the envelope 2 By forming the extraction electrode 26 so as to pull out the pole, it is also preferable to apply a voltage to the light emitting element and take out an electric signal from the light receiving element, which has been regarded as a problem in the conventional optical transmission / reception device. Can do.
- the optical transmission / reception device 50 according to the second embodiment is different from the optical transmission / reception device 1 according to the first embodiment in the shape of the base 5. That is, in the optical transmission / reception device 50 according to the second embodiment, as shown in FIG. 4, the cavity (concave portion) 30 in which the LD 9 and the PD 12 are arranged is formed on the front surface 5 a of the substrate 5. Between the light shielding member 20 and the PD 12, a light shielding part 31 made of a light shielding resin is provided so as to surround the light receiving surface 12a of the PD 12. This prevents disturbance light and unnecessary light from entering the PD 12 due to light emission of the LD 9 and the like.
- optical transmission / reception device 50 according to the second embodiment configured as described above also achieves the same operational effects as the optical transmission / reception device 1 according to the first embodiment.
- both ends of the groove 28 are open to the side surface 27c of the light transmitting member 27.
- the light shielding resin portion 3 is formed. Therefore, when the light-shielding resin flows into the envelope 2, the light-shielding resin can surely and easily flow into the groove 28, and the light-shielding resin part 3 is brought into the groove 28. Is possible.
- the bottom surface 28a of the groove 28 may be positioned behind the front surface 20a as the front surface 20a of the light shielding member 20.
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Optics & Photonics (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Light Receiving Elements (AREA)
- Photo Coupler, Interrupter, Optical-To-Optical Conversion Devices (AREA)
- Semiconductor Lasers (AREA)
- Optical Couplings Of Light Guides (AREA)
Abstract
Description
Claims
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP07743386.0A EP2023397B1 (en) | 2006-05-18 | 2007-05-15 | Light transmitting/receiving device |
| US12/301,142 US7826695B2 (en) | 2006-05-18 | 2007-05-15 | Light transmitting/receiving device |
| CN2007800140128A CN101529600B (zh) | 2006-05-18 | 2007-05-15 | 光接收发送装置 |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2006-139146 | 2006-05-18 | ||
| JP2006139146A JP4943739B2 (ja) | 2006-05-18 | 2006-05-18 | 光送受信デバイス |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2007135897A1 true WO2007135897A1 (ja) | 2007-11-29 |
Family
ID=38723210
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/JP2007/059951 Ceased WO2007135897A1 (ja) | 2006-05-18 | 2007-05-15 | 光送受信デバイス |
Country Status (7)
| Country | Link |
|---|---|
| US (1) | US7826695B2 (ja) |
| EP (1) | EP2023397B1 (ja) |
| JP (1) | JP4943739B2 (ja) |
| KR (1) | KR20090019763A (ja) |
| CN (1) | CN101529600B (ja) |
| TW (1) | TWI392249B (ja) |
| WO (1) | WO2007135897A1 (ja) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019160001A1 (ja) * | 2018-02-14 | 2019-08-22 | 古河電気工業株式会社 | 光モジュール |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100992778B1 (ko) | 2008-05-23 | 2010-11-05 | 엘지이노텍 주식회사 | 발광소자 패키지 및 그 제조방법 |
| JP5908627B2 (ja) * | 2015-03-13 | 2016-04-26 | エスアイアイ・セミコンダクタ株式会社 | 光センサ装置 |
| KR102145769B1 (ko) * | 2016-01-25 | 2020-08-19 | 교세라 가부시키가이샤 | 계측 센서용 패키지 및 계측 센서 |
| WO2018153464A1 (en) * | 2017-02-23 | 2018-08-30 | Osram Opto Semiconductors Gmbh | Sensor element |
| CN112425015A (zh) | 2018-05-11 | 2021-02-26 | Lg伊诺特有限公司 | 表面发射激光器封装件和包括其的发光装置 |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0226080A (ja) * | 1988-07-14 | 1990-01-29 | Olympus Optical Co Ltd | 半導体素子 |
| JPH05240701A (ja) * | 1992-02-28 | 1993-09-17 | Hamamatsu Photonics Kk | 半導体光検出装置 |
| JP2001061796A (ja) | 1999-08-31 | 2001-03-13 | Denso Corp | 脈波センサ |
| JP2003004855A (ja) * | 2001-06-26 | 2003-01-08 | Hamamatsu Photonics Kk | 放射線検出器 |
| JP2003329895A (ja) * | 2002-05-14 | 2003-11-19 | Sony Corp | 光リンク装置 |
| JP2004229920A (ja) * | 2003-01-30 | 2004-08-19 | Nippon Telegr & Teleph Corp <Ntt> | 血流計のセンサ部及び血流計 |
| JP2005116670A (ja) * | 2003-09-18 | 2005-04-28 | New Japan Radio Co Ltd | 受発光素子の製造方法 |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000075155A (ja) * | 1998-09-02 | 2000-03-14 | Nippon Telegr & Teleph Corp <Ntt> | 光モジュール |
| JP3990846B2 (ja) * | 1999-08-27 | 2007-10-17 | キヤノン株式会社 | 面型光素子、その製造方法、およびこれを用いた装置 |
| JP3722279B2 (ja) * | 2001-01-26 | 2005-11-30 | 日本電気株式会社 | 光送受信モジュール |
| JP3838164B2 (ja) * | 2002-06-18 | 2006-10-25 | 住友電気工業株式会社 | 光通信用素子と光通信用素子の製造方法 |
| KR100460840B1 (ko) * | 2002-08-09 | 2004-12-09 | 한국전자통신연구원 | 광 및 전기 크로스톡을 동시에 억제할 수 있는 광모듈 |
| US7248800B2 (en) * | 2003-05-30 | 2007-07-24 | Canon Kabushiki Kaisha | Optical receiver, optical transmitter and optical transceiver |
| JP2005234464A (ja) * | 2004-02-23 | 2005-09-02 | Tdk Corp | 光トランシーバ及びこれに用いる光モジュール |
| EP1645898A1 (en) * | 2004-10-05 | 2006-04-12 | STMicroelectronics S.r.l. | Optical communication module |
| JP4708214B2 (ja) * | 2006-02-23 | 2011-06-22 | 浜松ホトニクス株式会社 | 光送受信デバイス |
-
2006
- 2006-05-18 JP JP2006139146A patent/JP4943739B2/ja not_active Expired - Fee Related
-
2007
- 2007-05-15 CN CN2007800140128A patent/CN101529600B/zh not_active Expired - Fee Related
- 2007-05-15 EP EP07743386.0A patent/EP2023397B1/en not_active Ceased
- 2007-05-15 KR KR1020087020372A patent/KR20090019763A/ko not_active Withdrawn
- 2007-05-15 WO PCT/JP2007/059951 patent/WO2007135897A1/ja not_active Ceased
- 2007-05-15 US US12/301,142 patent/US7826695B2/en active Active
- 2007-05-17 TW TW096117594A patent/TWI392249B/zh not_active IP Right Cessation
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0226080A (ja) * | 1988-07-14 | 1990-01-29 | Olympus Optical Co Ltd | 半導体素子 |
| JPH05240701A (ja) * | 1992-02-28 | 1993-09-17 | Hamamatsu Photonics Kk | 半導体光検出装置 |
| JP2001061796A (ja) | 1999-08-31 | 2001-03-13 | Denso Corp | 脈波センサ |
| JP2003004855A (ja) * | 2001-06-26 | 2003-01-08 | Hamamatsu Photonics Kk | 放射線検出器 |
| JP2003329895A (ja) * | 2002-05-14 | 2003-11-19 | Sony Corp | 光リンク装置 |
| JP2004229920A (ja) * | 2003-01-30 | 2004-08-19 | Nippon Telegr & Teleph Corp <Ntt> | 血流計のセンサ部及び血流計 |
| JP2005116670A (ja) * | 2003-09-18 | 2005-04-28 | New Japan Radio Co Ltd | 受発光素子の製造方法 |
Non-Patent Citations (1)
| Title |
|---|
| See also references of EP2023397A4 |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019160001A1 (ja) * | 2018-02-14 | 2019-08-22 | 古河電気工業株式会社 | 光モジュール |
| JPWO2019160001A1 (ja) * | 2018-02-14 | 2021-02-04 | 古河電気工業株式会社 | 光モジュール |
| US11283234B2 (en) | 2018-02-14 | 2022-03-22 | Furukawa Electric Co., Ltd. | Optical module |
| JP7307045B2 (ja) | 2018-02-14 | 2023-07-11 | 古河電気工業株式会社 | 光モジュール |
Also Published As
| Publication number | Publication date |
|---|---|
| TW200807912A (en) | 2008-02-01 |
| JP2007311552A (ja) | 2007-11-29 |
| EP2023397A4 (en) | 2014-06-25 |
| JP4943739B2 (ja) | 2012-05-30 |
| US7826695B2 (en) | 2010-11-02 |
| TWI392249B (zh) | 2013-04-01 |
| US20090232451A1 (en) | 2009-09-17 |
| CN101529600B (zh) | 2010-12-15 |
| EP2023397A1 (en) | 2009-02-11 |
| EP2023397B1 (en) | 2015-03-25 |
| CN101529600A (zh) | 2009-09-09 |
| KR20090019763A (ko) | 2009-02-25 |
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