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公开(公告)号：JP2002006161A
公开(公告)日：2002-01-09
申请号：JP2000183441
申请日：2000-06-19
Applicant: SONY CORP
Inventor： OGAWA TAKESHI
IPC: G02B6/122 , G02B6/12 , G02B6/13 , G02B6/42 , G02B6/43 , H01L31/0232 , H01L31/12 , H05K1/02 , H05K3/46
Abstract: PROBLEM TO BE SOLVED: To provide a wiring substrate and a wiring substrate module which make it possible to rapidly transmit signals and effectively prevent a damage caused by external factors, and their manufacturing method. SOLUTION: The electric wiring element 10 having electric wiring patterns 12a-12g formed on an insulating substrate 11 and an insulating layer 20 covering the electric wiring element 10 are provided, and an optical waveguide 30 as an optical wiring is provided in the insulating layer 20. A luminous element 40 and a light receiving element 50 are provided in the insulating layer 20, and IC chips 61 and 62 are provided on the opposite side to the electric wiring element 10 of the insulating layer 20. Since the optical waveguide 30 is provided in the insulating layer 20, the occurrence of the break of the optical wiring and an optical noise can be prevented, and the loss in optical propagation can be reduced.
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32.发明专利
公开(公告)号：JP2001100063A
公开(公告)日：2001-04-13
申请号：JP27633699
申请日：1999-09-29
Applicant: SONY CORP
Inventor： OGAWA TAKESHI
Abstract: PROBLEM TO BE SOLVED: To provide an optical switching device and an optical transmission and reception device, which can transmit and receive light signals to and from an optical transmission line and can be made small-sized and thin, and the manufacturing method thereof. SOLUTION: A received light signal L1 which has been propagated in an optical fiber 1 enters an optical waveguide 15 from an end surface 15a and is propagated in the optical waveguide 15 to reach an end surface 15b. The received signal L1 is almost totally reflected here and guided to a photodetection part 13 provided below a sealing layer 14 through the sealing layer 14. A transmit light signal L2 which is projected on the opposite side form a semiconductor substrate 11 from the main surface of a light emission part 12 enters the optical waveguide 15 from its end surface which is in contact with the sealing layer 14 through the sealing layer 14 and is propagated in the optical waveguide 15 to reach an optical path converting mirror 16. The transmit light signal L2 has its optical path converted by the optical path converting mirror 16 in the direction of the optical fiber 1 and is propagated in the optical waveguide 15 and then projected from the end surface 15a. Further, the transmit light signal L2 is guided into the optical fiber 1.
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公开(公告)号：JP2001027717A
公开(公告)日：2001-01-30
申请号：JP19902399
申请日：1999-07-13
Applicant: SONY CORP
Inventor： OGAWA TAKESHI
IPC: H01S5/022 , G02B6/12 , G02B6/122 , G02B6/13 , G02B6/138 , G02B6/42 , G02B6/43 , H01L31/0232 , H01L31/12
Abstract: PROBLEM TO BE SOLVED: To provide a method of producing an optical waveguide by which an optical waveguide having high propagation characteristics of light can be easily produced without depending on the kinds of the supporting substrate. SOLUTION: A release improving film 12 formed by hardening a silicone oil and an optical waveguide 16 consisting of an epoxy resin are successively formed on a transparent substrate 11. The release improving film 12 improves the release property between the transparent substrate 11 and the optical waveguide 16, but has the adhesion property to a certain degree that prevents peeling from the transparent substrate 11 during the optical waveguide 16 is formed. Then a multilayered wiring board 17 is tightly adhered with an adhesive layer 18 consisting of a photosetting resin to the optical waveguide 16, and then irradiated with light L to harden the adhesive layer 18 to fix the multilayered wiring board 17 to the optical waveguide 16. When tensile stress is mechanically added to the transparent substrate 11, the transparent substrate 11 with the release improving film 12 is easily peeled from the optical waveguide 16, and the optical waveguide 16 is transferred onto the multilayered wiring board 17.
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公开(公告)号：JP2000199827A
公开(公告)日：2000-07-18
申请号：JP12063199
申请日：1999-04-27
Applicant: SONY CORP
Inventor： OKUHORA AKIHIKO , OGAWA TAKESHI
Abstract: PROBLEM TO BE SOLVED: To provide an optical wave guide device having an optical waveguide warranting a high optical propagation characteristic regardless of a kind of a support pedestal and its manufacture. SOLUTION: This optical wave guide device is provided with a multilayer wiring substrate 2, an optical waveguide 11, a light receiving element 21, IC chips 25, 35 and a light emitting element 31 arranged on the multilayer wiring substrate 2. Since the optical waveguide 11 is formed on a flat transparent substrate, and is transferred onto the multilayer wiring substrate 2, it has an advantage such as a less optical propagative loss. At this time, a signal to be transmitted at high speed is high speed transmitted as an optical signal, and the signal allowed to be transmitted at a relatively low speed is transmitted as an electric signal. Thus, the propagative delay of the signal becoming a problem in the case of transmitting only by the electric signal is dissolved, and the danger receiving an effect of an electromagnetic noise is reduced.
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公开(公告)号：JP2000035524A
公开(公告)日：2000-02-02
申请号：JP20494598
申请日：1998-07-21
Applicant: SONY CORP
Inventor： OGAWA TAKESHI
Abstract: PROBLEM TO BE SOLVED: To provide a process for producing an optical waveguide which forms core parts of a rectangular shape which are small in surface roughness and high in accuracy without requiring many man-hours and the optical waveguide which is small in propagation loss of light. SOLUTION: The core parts 3 of the optical waveguide which has a lower clad layer 2, core parts 3 and upper clad layer 4 formed on a substrate 1 are composed of a photosetting material to be cured by irradiation with prescribed wavelength light and the substrate 1 is composed of a transparent material which is transparent to the prescribed wavelength light. For example, if the prescribed wavelength light is UV rays, the core parts 3a are composed of a UV curing type resin cured by the irradiation with UV rays. The substrate 1 is composed of either one of quartz and glass transparent to the UV rays.
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Patent Agency Ranking
公开(公告)号：JPH08220576A
公开(公告)日：1996-08-30
申请号：JP2656195
申请日：1995-02-15
Applicant: SONY CORP
Inventor： YAMADA MASAHIRO , OGAWA TAKESHI , NADA NAOJI
Abstract: PURPOSE: To make coincident the oscillation wavelength of a semiconductor laser element and the phase matching wavelength of an SHG element easily in a simple structure, without carrying out a strict temperature control, by generating a higher harmonics in a wavelength scope wider than a wavelength scope which can be resonated by a resonant means. CONSTITUTION: In an SHG element 2 as a high-order higher harmonics generating element, the width and/or the depth of a set light waveguide passage are being changed along the propagating direction of the light wave, or the cycle of the cyclic structure is being changed along the propagating direction of the light wave. As a result, the generative wavelength, width of the second higher harmonics laser beam generated from the SHG element 2 is expanded, and it can be set wider than the oscillating wavelength width of the fundamental harmonic laser beam outgone from a light amplifier 1. Consequently, regardless of the wavelength of the laser beam oscillated from the light amplifier 1, the second higher harmonics of the laser beam can be generated necessarily in the SHG element 2, and the oscillating wavelength of the semiconductor laser beam outgone from the light amplifier 1, and the phase matching wavelength of the SHG element 2 can be made coincident easily.
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公开(公告)号：JPH0736071A
公开(公告)日：1995-02-07
申请号：JP17560293
申请日：1993-07-15
Applicant: SONY CORP
Inventor： OGAWA TAKESHI
Abstract: PURPOSE:To make stable single-mode oscillation possible by the waveform converting device consisting of a light source composed of a semiconductor laser and nonlinear optical elements. CONSTITUTION:This device has the light source 1 composed of the semiconductor laser, a 1st nonlinear optical element 11 which has a 1st end surface 11a and a 2nd end surface 11b with an optical waveguide 2 and constitute a light polarizing conversion element 22, and a 2nd nonlinear optical element 12 which has a 1st end surface 12a and a 2nd end surface 12b with an optical waveguide 3; and the light polarizing conversion element 21 has comb-shaped electrodes, which apply an electric field inverted in every some cycles in the propagation direction of light, on the optical waveguide 3 and a polarizing filter 7 which is positioned on a different from the light source 1 for those electrodes. The projection light from the 1st end surface 1a of the semiconductor laser is made incident on the optical waveguide 2 of the 1st nonlinear optical element 11 from the 1st end surface 11a and the projection light from the 2nd end surface 1b of the semiconductor laser is made incident on the optical waveguide 3 of the 2nd nonlinear optical element 12 from the 1st end surface 12a.
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公开(公告)号：JPH06326392A
公开(公告)日：1994-11-25
申请号：JP16661493
申请日：1993-07-06
Applicant: SONY CORP
Inventor： KIJIMA KOUICHIROU , KOGA YUJI , TAGUCHI AYUMI , OGAWA TAKESHI
Abstract: PURPOSE:To make it possible to avoid the generation of the hysteresis phenomenon of the oscillation wavelength of a laser beam, which is emitted from a semiconductor laser, to the injection current of the laser by a method wherein a high-frequency current having an amplitude of a prescribed magnitude is made to superpose on the injection current so as to avoid the generation of hte hysteresis phenomenon to the injection current of the laser and is fed to the semiconductor laser. CONSTITUTION:The sum of 100Hz to 100MHz, desirably several tens kHz, of a low-frequency signal, which is generated from a local oscillator 7, and a signal, which is given from a current controlling circuit 9, is converted into a current by a current source 8. An injection current, which is outputted from the source 8, is superposed with 750MHz, for example, of a current by a high-frequency superposing circuit 10 and is fed to a semiconductor laser element 1. Thereby, a high-frequency current having an amplitude of a prescribed magnitude is made to superpose on the injection current of the laser so as to avoid the generation of the hysteresis phenomenon of an oscillation wavelength of a laser beam, which is emitted from the laser, and is made to flow in such a way as to feed to the laser. As a result, the generation of the hysteresis phenomenon of the oscillation wavelength of the laser beam can be avoided.
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公开(公告)号：JPH06214265A
公开(公告)日：1994-08-05
申请号：JP606893
申请日：1993-01-18
Applicant: SONY CORP
Inventor： OGAWA TAKESHI , TAGUCHI AYUMI , KIJIMA KOUICHIROU , KOGA YUJI
Abstract: PURPOSE:To make the oscillation wavelength of a semiconductor laser to coincide with the wavelength to maximize the conversion efficiency of a nonlinear optical element. CONSTITUTION:This wavelength conversion device is constituted by using a light source 19 consisting of at least the semiconductor laser 1 and a diffraction grating 2 and the nonlinear optical element 3 and has a modulating element for applying a slight fluctuation to the oscillation wavelength of the semiconductor laser 1 and a photodetector 6 for receiving the exit light from the nonlinear optical element 3. A correlation between the fluctuation signal obtd. from this photodetector 6 and the fluctuation signal of the modulating element is obtd. and a difference between the wavelength of the fundamental wave at which the wavelength conversion efficiency of the nonlinear optical element 3 and the wavelength of the input fundamental wave to the nonlinear optical element 3 obtd. by this correction is obtd. as an error signal, by which the wavelength of the input fundamental wave is made to coincide with the wavelength of the fundamental wave to maximize the wavelength conversion efficiency.
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公开(公告)号：JPH06123907A
公开(公告)日：1994-05-06
申请号：JP5252193
申请日：1993-03-12
Applicant: SONY CORP
Inventor： OGAWA TAKESHI
Abstract: PURPOSE:To stabilize operation. CONSTITUTION:The light source 1 of this wavelength conversion device having the light source 1 and a nonlinear optical element 2 consists of a semiconductor laser LD and the oscillated light therefrom is made incident as a fundamental wave on the nonlinear optical element 2 to ride a microfluctuating current on the implantation current of the semiconductor laser LD and to fluctuate its oscillation wavelength, thereby, the wavelength of the input fundamental wave to the nonlinear optical element 2 is fluctuated and the oscillation wavelength of the semiconductor laser LD is withdrawn into the wavelength of the input fundamental wave at which the wavelength conversion efficiency thereof is maximized.
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