JPS6448021A - Optical device - Google Patents
Optical deviceInfo
- Publication number
- JPS6448021A JPS6448021A JP20425687A JP20425687A JPS6448021A JP S6448021 A JPS6448021 A JP S6448021A JP 20425687 A JP20425687 A JP 20425687A JP 20425687 A JP20425687 A JP 20425687A JP S6448021 A JPS6448021 A JP S6448021A
- Authority
- JP
- Japan
- Prior art keywords
- conductor
- light beam
- optical waveguide
- effective refractive
- propagating
- 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.)
- Pending
Links
Classifications
-
- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/03—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on ceramics or electro-optical crystals, e.g. exhibiting Pockels effect or Kerr effect
- G02F1/035—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on ceramics or electro-optical crystals, e.g. exhibiting Pockels effect or Kerr effect in an optical waveguide structure
- G02F1/0356—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on ceramics or electro-optical crystals, e.g. exhibiting Pockels effect or Kerr effect in an optical waveguide structure controlled by a high-frequency electromagnetic wave component in an electric waveguide structure
Landscapes
- Physics & Mathematics (AREA)
- Nonlinear Science (AREA)
- Electromagnetism (AREA)
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Crystallography & Structural Chemistry (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
Abstract
PURPOSE:To execute a high speed operation within deteriorating the efficiency, by constituting the titled device so that a progressive wave electrode is formed in the vicinity of an optical waveguide which has been formed on a principal plane of a substrate, and a signal propagating through it and a light beam propagating through the optical waveguide are brought to an interaction. CONSTITUTION:A center conductor 11 and a ground conductor 12 of an asymmetrical coplanar strip, whose line widths are 2W1 and 2W2, and whose gap is 2G are formed on optical waveguides 4, 5 through a buffer layer 6 whose thickness is (d), and an overlay 14 and a conductor 13 are placed thereon. When height H of the conductor 13 is lowered, an effective refractive index (nm) of a modulated signal wave becomes small, and also, coincides entirely with an effective refractive index (no) of light. In such a way, by bringing the conductor close to the vicinity of an area where a signal propagating through a progressive wave electrode and a light beam propagating through an optical waveguide are brought to an intersection, and by bringing the respective effective refractive indexes of the signal wave and the light beam close to each other, an extremely width modulation band is realized, and a high speed operation can be executed.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP20425687A JPS6448021A (en) | 1987-08-19 | 1987-08-19 | Optical device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP20425687A JPS6448021A (en) | 1987-08-19 | 1987-08-19 | Optical device |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS6448021A true JPS6448021A (en) | 1989-02-22 |
Family
ID=16487449
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP20425687A Pending JPS6448021A (en) | 1987-08-19 | 1987-08-19 | Optical device |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6448021A (en) |
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH01204020A (en) * | 1988-02-09 | 1989-08-16 | Fujitsu Ltd | Formation of optical waveguide traveling wave electrode |
JPH02289821A (en) * | 1989-02-17 | 1990-11-29 | Nippon Telegr & Teleph Corp <Ntt> | Optical control element |
JPH0593892A (en) * | 1991-10-01 | 1993-04-16 | Nec Corp | Two-layered type optical modulator |
JPH05119287A (en) * | 1991-10-29 | 1993-05-18 | Nec Corp | Waveguige type optical device |
EP0709711A1 (en) * | 1994-10-25 | 1996-05-01 | Hughes Aircraft Company | Velocity-matched electrodes for electro-optic travelling-wave modulators and method for forming the same |
WO2021201132A1 (en) * | 2020-03-31 | 2021-10-07 | Tdk Corporation | Electro-optical device |
US11947147B2 (en) | 2021-03-30 | 2024-04-02 | Tdk Corporation | Optical device with microcrack resistance from surface roughness thereby reducing loss of light |
US12124150B2 (en) | 2022-03-07 | 2024-10-22 | Keysight Technologies, Inc. | Radio frequency (RF) phase velocity tuner for setting an electrooptic (EO) modulator bandwidth at different optical wavelengths |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS63141021A (en) * | 1986-12-03 | 1988-06-13 | Fujitsu Ltd | Mach-zehnder type optical waveguide modulator |
-
1987
- 1987-08-19 JP JP20425687A patent/JPS6448021A/en active Pending
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS63141021A (en) * | 1986-12-03 | 1988-06-13 | Fujitsu Ltd | Mach-zehnder type optical waveguide modulator |
Cited By (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH01204020A (en) * | 1988-02-09 | 1989-08-16 | Fujitsu Ltd | Formation of optical waveguide traveling wave electrode |
JPH02289821A (en) * | 1989-02-17 | 1990-11-29 | Nippon Telegr & Teleph Corp <Ntt> | Optical control element |
US5129017A (en) * | 1989-02-17 | 1992-07-07 | Nippon Telegraph And Telephone Company | Electrically controlled optical device |
JPH0593892A (en) * | 1991-10-01 | 1993-04-16 | Nec Corp | Two-layered type optical modulator |
JPH05119287A (en) * | 1991-10-29 | 1993-05-18 | Nec Corp | Waveguige type optical device |
EP0709711A1 (en) * | 1994-10-25 | 1996-05-01 | Hughes Aircraft Company | Velocity-matched electrodes for electro-optic travelling-wave modulators and method for forming the same |
JPH08227083A (en) * | 1994-10-25 | 1996-09-03 | Hughes Aircraft Co | Speed-matched electrode for electro-optical traveling wave modulator and its manufacture |
WO2021201132A1 (en) * | 2020-03-31 | 2021-10-07 | Tdk Corporation | Electro-optical device |
JP2023522151A (en) * | 2020-03-31 | 2023-05-29 | Tdk株式会社 | electro-optical device |
US11947147B2 (en) | 2021-03-30 | 2024-04-02 | Tdk Corporation | Optical device with microcrack resistance from surface roughness thereby reducing loss of light |
US12124150B2 (en) | 2022-03-07 | 2024-10-22 | Keysight Technologies, Inc. | Radio frequency (RF) phase velocity tuner for setting an electrooptic (EO) modulator bandwidth at different optical wavelengths |
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