DE69332131T2 - Optischer Modulator, optischer Sender und optisches Übertragungssystem - Google Patents
Optischer Modulator, optischer Sender und optisches ÜbertragungssystemInfo
- Publication number
- DE69332131T2 DE69332131T2 DE69332131T DE69332131T DE69332131T2 DE 69332131 T2 DE69332131 T2 DE 69332131T2 DE 69332131 T DE69332131 T DE 69332131T DE 69332131 T DE69332131 T DE 69332131T DE 69332131 T2 DE69332131 T2 DE 69332131T2
- Authority
- DE
- Germany
- Prior art keywords
- optical
- signal
- modulator
- phase
- intensity
- 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.)
- Expired - Fee Related
Links
- 230000003287 optical effect Effects 0.000 title claims description 220
- 230000005540 biological transmission Effects 0.000 title claims description 67
- 230000003595 spectral effect Effects 0.000 claims description 29
- 238000001228 spectrum Methods 0.000 claims description 21
- 230000002123 temporal effect Effects 0.000 claims description 3
- 230000001360 synchronised effect Effects 0.000 claims 1
- 239000013307 optical fiber Substances 0.000 description 26
- 230000008054 signal transmission Effects 0.000 description 19
- 238000010586 diagram Methods 0.000 description 18
- 230000000694 effects Effects 0.000 description 11
- 239000006185 dispersion Substances 0.000 description 7
- 230000008878 coupling Effects 0.000 description 6
- 238000010168 coupling process Methods 0.000 description 6
- 238000005859 coupling reaction Methods 0.000 description 6
- 239000004065 semiconductor Substances 0.000 description 6
- 230000008901 benefit Effects 0.000 description 5
- 230000008859 change Effects 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- 238000004891 communication Methods 0.000 description 4
- 238000002474 experimental method Methods 0.000 description 4
- 239000000835 fiber Substances 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 230000006866 deterioration Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000010363 phase shift Effects 0.000 description 3
- JBRZTFJDHDCESZ-UHFFFAOYSA-N AsGa Chemical compound [As]#[Ga] JBRZTFJDHDCESZ-UHFFFAOYSA-N 0.000 description 2
- 229910001218 Gallium arsenide Inorganic materials 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 2
- 230000002411 adverse Effects 0.000 description 2
- 230000008033 biological extinction Effects 0.000 description 2
- GQYHUHYESMUTHG-UHFFFAOYSA-N lithium niobate Chemical compound [Li+].[O-][Nb](=O)=O GQYHUHYESMUTHG-UHFFFAOYSA-N 0.000 description 2
- 230000001902 propagating effect Effects 0.000 description 2
- 230000004044 response Effects 0.000 description 2
- 230000035945 sensitivity Effects 0.000 description 2
- 230000001960 triggered effect Effects 0.000 description 2
- 229910003327 LiNbO3 Inorganic materials 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 230000003111 delayed effect Effects 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B82—NANOTECHNOLOGY
- B82Y—SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES; MEASUREMENT OR ANALYSIS OF NANOSTRUCTURES; MANUFACTURE OR TREATMENT OF NANOSTRUCTURES
- B82Y20/00—Nanooptics, e.g. quantum optics or photonic crystals
-
- 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
- H04B10/25—Arrangements specific to fibre transmission
- H04B10/2507—Arrangements specific to fibre transmission for the reduction or elimination of distortion or dispersion
- H04B10/2537—Arrangements specific to fibre transmission for the reduction or elimination of distortion or dispersion due to scattering processes, e.g. Raman or Brillouin scattering
-
- 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
- G02F1/015—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 semiconductor elements having potential barriers, e.g. having a PN or PIN junction
- G02F1/017—Structures with periodic or quasi periodic potential variation, e.g. superlattices, quantum wells
- G02F1/01708—Structures with periodic or quasi periodic potential variation, e.g. superlattices, quantum wells in an optical wavequide structure
-
- 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
- G02F2203/00—Function characteristic
- G02F2203/25—Frequency chirping of an optical modulator; Arrangements or methods for the pre-set or tuning thereof
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Nanotechnology (AREA)
- Chemical & Material Sciences (AREA)
- Optics & Photonics (AREA)
- Nonlinear Science (AREA)
- General Physics & Mathematics (AREA)
- Signal Processing (AREA)
- Life Sciences & Earth Sciences (AREA)
- Biophysics (AREA)
- Computer Networks & Wireless Communication (AREA)
- Crystallography & Structural Chemistry (AREA)
- Electromagnetism (AREA)
- Optical Communication System (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP08530692A JP3223562B2 (ja) | 1992-04-07 | 1992-04-07 | 光送信装置、光伝送装置および光変調器 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| DE69332131D1 DE69332131D1 (de) | 2002-08-29 |
| DE69332131T2 true DE69332131T2 (de) | 2003-03-27 |
Family
ID=13854918
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE69332131T Expired - Fee Related DE69332131T2 (de) | 1992-04-07 | 1993-04-05 | Optischer Modulator, optischer Sender und optisches Übertragungssystem |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US5515196A (cg-RX-API-DMAC10.html) |
| EP (1) | EP0565035B9 (cg-RX-API-DMAC10.html) |
| JP (1) | JP3223562B2 (cg-RX-API-DMAC10.html) |
| DE (1) | DE69332131T2 (cg-RX-API-DMAC10.html) |
Families Citing this family (106)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5394260A (en) * | 1992-02-03 | 1995-02-28 | Kokusai Denshin Denwa Kabushiki Kaisha | Optical pulse generator |
| JPH06261005A (ja) * | 1993-03-02 | 1994-09-16 | Matsushita Electric Ind Co Ltd | 光伝送装置 |
| US5373385A (en) * | 1993-11-12 | 1994-12-13 | At&T Corp. | Method and apparatus for reduction of optical communication system impairments |
| DE69531328T2 (de) * | 1994-09-12 | 2004-02-12 | Nippon Telegraph And Telephone Corp. | Intensitätsmoduliertes optisches Übertragungssystem |
| US5619364A (en) * | 1995-02-22 | 1997-04-08 | The United States Of America As Represented By The Secretary Of The Navy | Depolarized source for high power operation of an integrated optical modulator |
| US5566381A (en) * | 1995-03-02 | 1996-10-15 | Lucent Technologies Inc. | Multifrequency lightwave source using phase modulation for suppressing stimulated brillouin scattering in optical fibers |
| JP3304683B2 (ja) * | 1995-05-02 | 2002-07-22 | 富士通株式会社 | 無線装置 |
| JPH08316909A (ja) * | 1995-05-16 | 1996-11-29 | Toshiba Corp | 光伝送システム、光送信モジュール、及び光変調器の駆動方法 |
| JPH0946318A (ja) * | 1995-08-01 | 1997-02-14 | Fujitsu Ltd | 波長多重光伝送システム及び該伝送システムに用いる光送信装置 |
| JPH0961766A (ja) * | 1995-08-19 | 1997-03-07 | Nec Corp | 半導体光変調器 |
| US5828477A (en) * | 1995-11-16 | 1998-10-27 | Harmonic Lightwaves, Inc. | Multi-tone phase modulation for light wave communication system |
| JP3299101B2 (ja) * | 1995-12-15 | 2002-07-08 | 日本電気株式会社 | 波長多重光通信装置 |
| IT1279248B1 (it) | 1995-12-21 | 1997-12-09 | Pirelli Cavi S P A Ora Pirelli | Sistema di trasmissione di segnali ottici modulati e depolarizzati |
| US6310709B1 (en) * | 1995-12-29 | 2001-10-30 | Tyco Submarine Systems Ltd. | Synchronous polarization and phase modulation using a periodic waveform with complex harmonics for improved performance of optical transmission systems |
| JP3405046B2 (ja) * | 1996-02-22 | 2003-05-12 | Kddi株式会社 | レーザ光発生装置 |
| GB9604303D0 (en) * | 1996-02-29 | 1996-05-01 | Stc Submarine Systems Ltd | Chromatic pre-chip in NRZ transmitter |
| DE19617956A1 (de) * | 1996-05-04 | 1997-11-13 | Bosch Gmbh Robert | Optischer Sender |
| JP2955986B2 (ja) * | 1996-05-22 | 1999-10-04 | 日本電気株式会社 | 半導体光変調器及びその製造方法 |
| JPH09321709A (ja) * | 1996-05-29 | 1997-12-12 | Fujitsu Ltd | 光送信器 |
| JP3027944B2 (ja) * | 1996-08-16 | 2000-04-04 | 日本電気株式会社 | 光デュオバイナリ信号光の生成方法および光送信装置 |
| US5892607A (en) * | 1996-10-23 | 1999-04-06 | Scientific-Atlanta, Inc. | Suppression of stimulated brillouin scattering in optical transmission system |
| JP3512580B2 (ja) * | 1996-12-10 | 2004-03-29 | 日本電気株式会社 | 光時分割多重伝送用光送信装置と光受信装置及びこれらを備えた光時分割多重光伝送装置 |
| US20040161245A1 (en) * | 1996-12-20 | 2004-08-19 | Bergano Neal S. | Synchronous amplitude modulation for improved performance of optical transmission systems |
| US6556326B2 (en) * | 1996-12-20 | 2003-04-29 | Tyco Telecommunications (Us) Inc. | Synchronous amplitude modulation for improved performance of optical transmission systems |
| CN1153382C (zh) * | 1997-01-22 | 2004-06-09 | 株式会社爱德万测试 | 光脉冲传输系统及其方法 |
| US5946119A (en) * | 1997-02-12 | 1999-08-31 | Tyco Submarine Systems Ltd. | Wavelength division multiplexed system employing optimal channel modulation |
| CA2197624C (en) * | 1997-02-14 | 2003-07-29 | Robert J. Davies | Hybrid single sideband optical modulator |
| CN1082753C (zh) * | 1997-03-05 | 2002-04-10 | 富士通株式会社 | 减小受激布里渊散射影响的传输波分复用信号方法和设备 |
| US6091864A (en) * | 1997-04-10 | 2000-07-18 | Ortel Corporation | Linear optical modulator for providing chirp-free optical signals |
| JP3094950B2 (ja) * | 1997-05-28 | 2000-10-03 | 日本電気株式会社 | 光送信装置及び光送信方法 |
| JPH1152313A (ja) * | 1997-08-08 | 1999-02-26 | Mitsubishi Electric Corp | 光変調装置 |
| US6388786B1 (en) * | 1997-08-15 | 2002-05-14 | Nec Corporation | Method for generating duobinary signal and optical transmitter using the same method |
| US6556327B1 (en) * | 1997-11-06 | 2003-04-29 | Matsushita Electric Industrial Co., Ltd. | Signal converter, optical transmitter and optical fiber transmission system |
| US6282003B1 (en) * | 1998-02-02 | 2001-08-28 | Uniphase Corporation | Method and apparatus for optimizing SBS performance in an optical communication system using at least two phase modulation tones |
| FR2781322B1 (fr) * | 1998-07-20 | 2000-09-08 | Alsthom Cge Alcatel | Dispositif d'emission de donnees optiques |
| US6320692B1 (en) | 1998-11-27 | 2001-11-20 | Pirelli Cavi E Sistemi S.P.A. | Biasing system for an optical modulator with double output |
| US6763151B1 (en) | 1999-07-02 | 2004-07-13 | Avanex Corporation | Electro-optic modulators with internal impedance matching |
| US6535315B1 (en) * | 2000-01-21 | 2003-03-18 | New Elite Technologies, Inc. | Optical fiber transmitter for simultaneously suppressing stimulated brillouin scattering and self/external-phase modulation-induced nolinear distortions in a long-distance broadband distribution system |
| FR2806559B1 (fr) * | 2000-03-20 | 2002-05-31 | Cit Alcatel | Regenerateur optique synchrone par modulation d'intensite et modulation de phase par effet kerr croise |
| JP2001296506A (ja) * | 2000-04-13 | 2001-10-26 | Nec Corp | Rz光送信器 |
| US6876818B1 (en) * | 2000-08-18 | 2005-04-05 | Futurewei Technologies, Inc. | Method and system for transmitting signals with spectrally enriched optical pulses |
| US6738105B1 (en) * | 2000-11-02 | 2004-05-18 | Intel Corporation | Coherent light despeckling |
| WO2002037622A2 (en) | 2000-11-06 | 2002-05-10 | Vitesse Semiconductor Corporation | Method of controlling the turn off characteristics of a vcsel diode |
| US7173551B2 (en) * | 2000-12-21 | 2007-02-06 | Quellan, Inc. | Increasing data throughput in optical fiber transmission systems |
| US6791694B2 (en) * | 2001-01-16 | 2004-09-14 | Santur Corporation | Tunable optical device using a scanning MEMS mirror |
| US20020131125A1 (en) * | 2001-03-16 | 2002-09-19 | Myers Michael H. | Replicated-spectrum photonic transceiving |
| US20020131100A1 (en) * | 2001-03-16 | 2002-09-19 | Myers Michael H. | Method for photonic wavelength error detection |
| US6407846B1 (en) | 2001-03-16 | 2002-06-18 | All Optical Networks, Inc. | Photonic wavelength shifting method |
| US7307569B2 (en) * | 2001-03-29 | 2007-12-11 | Quellan, Inc. | Increasing data throughput in optical fiber transmission systems |
| US7149256B2 (en) * | 2001-03-29 | 2006-12-12 | Quellan, Inc. | Multilevel pulse position modulation for efficient fiber optic communication |
| AU2002254522A1 (en) | 2001-03-30 | 2003-11-11 | Santur Corporation | High speed modulation of arrayed lasers |
| WO2002079864A1 (en) * | 2001-03-30 | 2002-10-10 | Santur Corporation | Modulator alignment for laser |
| US6922278B2 (en) | 2001-03-30 | 2005-07-26 | Santur Corporation | Switched laser array modulation with integral electroabsorption modulator |
| US6813300B2 (en) * | 2001-03-30 | 2004-11-02 | Santur Corporation | Alignment of an on chip modulator |
| EP1384338B1 (en) * | 2001-04-04 | 2010-12-15 | Quellan, Inc. | Method and system for decoding multilevel signals |
| US20030030873A1 (en) * | 2001-05-09 | 2003-02-13 | Quellan, Inc. | High-speed adjustable multilevel light modulation |
| US7200344B1 (en) | 2001-05-10 | 2007-04-03 | Fujitsu Limited | Receiver and method for a multichannel optical communication system |
| US7483639B2 (en) * | 2001-05-10 | 2009-01-27 | Fujitsu Limited | Method and system for transmitting information in an optical communication system using distributed amplification |
| US7035543B1 (en) | 2001-05-10 | 2006-04-25 | Fujitsu Limited | Method and system for demultiplexing non-intensity modulated wavelength division multiplexed (WDM) signals |
| US6941078B1 (en) * | 2001-05-10 | 2005-09-06 | Fujitsu Limited | Method and system for communicating a clock signal over an optical link |
| JP4698888B2 (ja) * | 2001-06-21 | 2011-06-08 | 三菱電機株式会社 | 光変調器、光変調器の実装基板および光変調器の駆動方法 |
| US7702245B1 (en) | 2001-08-15 | 2010-04-20 | Cisco Technology, Inc. | Spread spectrum in-band utility communication channel |
| US6865345B2 (en) * | 2001-08-28 | 2005-03-08 | Agilent Technologies, Inc. | Frequency translating devices and frequency translating measurement systems that utilize light-activated resistors |
| US7127182B2 (en) * | 2001-10-17 | 2006-10-24 | Broadband Royalty Corp. | Efficient optical transmission system |
| US6990296B2 (en) * | 2001-12-21 | 2006-01-24 | Fujitsu Limited | Optical phase modulation |
| US7212580B2 (en) * | 2002-02-15 | 2007-05-01 | Quellan, Inc. | Multi-level signal clock recovery technique |
| US6671077B2 (en) * | 2002-04-16 | 2003-12-30 | Lucent Technologies Inc. | Method and apparatus for generating return-to-zero modulated optical signals |
| AU2003223687A1 (en) * | 2002-04-23 | 2003-11-10 | Quellan, Inc. | Combined ask/dpsk modulation system |
| US7146109B2 (en) * | 2002-04-26 | 2006-12-05 | Lucent Technologies Inc. | Analog modulation of optical signals |
| US6819480B2 (en) * | 2002-05-02 | 2004-11-16 | Lucent Technologies Inc. | Method and apparatus for controlling the extinction ratio of transmitters |
| JP2004013681A (ja) * | 2002-06-10 | 2004-01-15 | Bosu & K Consulting Kk | 名刺情報管理システム |
| US20030235415A1 (en) * | 2002-06-21 | 2003-12-25 | Peters Frank H. | Optical communication devices and optical communication methods |
| AU2003256569A1 (en) | 2002-07-15 | 2004-02-02 | Quellan, Inc. | Adaptive noise filtering and equalization |
| US20040057734A1 (en) * | 2002-09-25 | 2004-03-25 | Lucent Technologies, Inc. | Method and system for reducing transmission penalties associated with ghost pulses |
| US7934144B2 (en) * | 2002-11-12 | 2011-04-26 | Quellan, Inc. | High-speed analog-to-digital conversion with improved robustness to timing uncertainty |
| US7146110B2 (en) | 2003-02-11 | 2006-12-05 | Optium Corporation | Optical transmitter with SBS suppression |
| US20040190661A1 (en) * | 2003-03-26 | 2004-09-30 | Quellan, Inc. | Method and system for equalizing communication signals |
| KR100547746B1 (ko) * | 2003-04-30 | 2006-01-31 | 삼성전자주식회사 | 듀오바이너리 광 전송장치 |
| US20050025416A1 (en) * | 2003-08-01 | 2005-02-03 | Optium Corporation | Optical fiber transmission system with increased effective modal bandwidth transmission |
| US7269358B2 (en) * | 2003-08-01 | 2007-09-11 | Optium Corporation | Optical transmitter for increased effective modal bandwidth transmission |
| KR101109847B1 (ko) * | 2003-08-07 | 2012-04-06 | ?란 인코포레이티드 | 혼선 제거 방법 및 시스템 |
| US7804760B2 (en) * | 2003-08-07 | 2010-09-28 | Quellan, Inc. | Method and system for signal emulation |
| US7215893B2 (en) * | 2003-08-28 | 2007-05-08 | The Boeing Company | RF photonics residual error correction |
| US7573928B1 (en) | 2003-09-05 | 2009-08-11 | Santur Corporation | Semiconductor distributed feedback (DFB) laser array with integrated attenuator |
| WO2005050896A2 (en) | 2003-11-17 | 2005-06-02 | Quellan, Inc. | Method and system for antenna interference cancellation |
| US7616700B2 (en) * | 2003-12-22 | 2009-11-10 | Quellan, Inc. | Method and system for slicing a communication signal |
| EP1749357B1 (en) * | 2004-05-25 | 2009-04-22 | Azea Networks Limited | Method and apparatus for producing high extinction ratio data modulation formats |
| KR100617771B1 (ko) * | 2004-11-20 | 2006-08-28 | 삼성전자주식회사 | 영복귀-교호부호반전 광송신기 및 이를 이용한영복귀-교호부호반전 광신호의 생성 방법 |
| US7725079B2 (en) | 2004-12-14 | 2010-05-25 | Quellan, Inc. | Method and system for automatic control in an interference cancellation device |
| US7522883B2 (en) * | 2004-12-14 | 2009-04-21 | Quellan, Inc. | Method and system for reducing signal interference |
| GB2421863A (en) * | 2005-01-04 | 2006-07-05 | Salah A Al-Chalabi | Using an interferometer to impose a spread spectrum code and data modulation in an optical communication system |
| US7761011B2 (en) * | 2005-02-23 | 2010-07-20 | Kg Technology Associates, Inc. | Optical fiber communication link |
| US7848661B2 (en) * | 2005-03-15 | 2010-12-07 | Emcore Corporation | Directly modulated laser optical transmission system with phase modulation |
| US9252983B2 (en) | 2006-04-26 | 2016-02-02 | Intersil Americas LLC | Method and system for reducing radiated emissions from a communications channel |
| JP2008211439A (ja) | 2007-02-26 | 2008-09-11 | Yokogawa Electric Corp | 光送信器 |
| TW200840362A (en) * | 2007-03-28 | 2008-10-01 | Emcore Corp | Externally modulated laser optical transmission system with feed forward noise cancellation |
| US8948273B2 (en) * | 2007-09-17 | 2015-02-03 | J. Craig Oxford | Method and apparatus for wired signal transmission |
| US8208817B2 (en) * | 2009-03-20 | 2012-06-26 | Alcatel Lucent | High-speed optical modulation using a quantum-well modulator |
| WO2011133222A2 (en) * | 2010-04-21 | 2011-10-27 | Aurora Networks, Inc. | Chirp compensation and sbs suppression using a multi-section laser |
| CN103905125B (zh) * | 2014-04-25 | 2016-09-14 | 中国电子科技集团公司第四十四研究所 | 模拟微波光链路幅相调控装置 |
| US20180269645A1 (en) * | 2016-02-29 | 2018-09-20 | The Johns Hopkins University | High energy fiber laser amplifier with reduced optical linewidth |
| US10811837B2 (en) | 2017-12-18 | 2020-10-20 | Northrop Grumman Systems Corporation | AM/FM seed for nonlinear spectrally compressed fiber amplifier |
| US11411366B2 (en) | 2019-01-15 | 2022-08-09 | Northrop Grumman Systems Corporation | Combined laser architecture using wavelength multiplexed seed source |
| CN114448518B (zh) * | 2020-11-04 | 2024-01-30 | 西安电子科技大学 | 一种低复杂度相干检测光载射频链路的方法 |
| US12298648B2 (en) * | 2022-12-21 | 2025-05-13 | Luminous Computing, Inc. | Optical modulator with twisted electrodes |
| EP4531306A1 (en) * | 2023-09-27 | 2025-04-02 | NKT Photonics A/S | Optical ground terminal optical transmission system and an optical ground terminal |
Family Cites Families (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3875400A (en) * | 1971-04-06 | 1975-04-01 | Pao Yoh Han | Intensity modulated optical carrier communication system |
| JPS6313017A (ja) * | 1986-07-03 | 1988-01-20 | Nec Corp | 光振幅位相変調器 |
| US4754452A (en) * | 1986-09-11 | 1988-06-28 | American Telephone And Telegraph Company, At&T Bell Laboratories | Optical local area network using a common optical carrier with separate user angle modulation |
| JPS645127A (en) * | 1987-06-29 | 1989-01-10 | Nec Corp | Optical transmitter |
| WO1989008356A1 (fr) * | 1988-03-04 | 1989-09-08 | Fujitsu Limited | Procede et dispositif de modulation d'un laser a semi-conducteur |
| JP2658387B2 (ja) * | 1989-04-28 | 1997-09-30 | 日本電気株式会社 | 光変調器とその駆動方法および光変調器駆動装置 |
| US5031235A (en) * | 1989-10-27 | 1991-07-09 | Hoechst Celanese Corp. | Cable system incorporating highly linear optical modulator |
| EP0430230B1 (en) * | 1989-11-30 | 1995-03-15 | Nec Corporation | Optical transmitting apparatus |
| JP2917333B2 (ja) * | 1989-11-30 | 1999-07-12 | 日本電気株式会社 | 光送信方法及び光送信装置 |
| JP2946630B2 (ja) * | 1990-05-08 | 1999-09-06 | 富士通株式会社 | 光変調器 |
| US5301058A (en) * | 1990-12-31 | 1994-04-05 | Gte Laboratories Incorporated | Single sideband optical modulator for lightwave systems |
| JPH0539177A (ja) * | 1991-08-02 | 1993-02-19 | Fujitec Co Ltd | エレベータホール等の混雑度検出装置 |
-
1992
- 1992-04-07 JP JP08530692A patent/JP3223562B2/ja not_active Expired - Lifetime
-
1993
- 1993-04-02 US US08/042,380 patent/US5515196A/en not_active Expired - Lifetime
- 1993-04-05 EP EP93105624A patent/EP0565035B9/en not_active Expired - Lifetime
- 1993-04-05 DE DE69332131T patent/DE69332131T2/de not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| EP0565035B1 (en) | 2002-07-24 |
| EP0565035B9 (en) | 2003-02-26 |
| JPH05289125A (ja) | 1993-11-05 |
| EP0565035A3 (cg-RX-API-DMAC10.html) | 1994-12-28 |
| US5515196A (en) | 1996-05-07 |
| EP0565035A2 (en) | 1993-10-13 |
| DE69332131D1 (de) | 2002-08-29 |
| JP3223562B2 (ja) | 2001-10-29 |
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|---|---|---|---|
| 8364 | No opposition during term of opposition | ||
| 8339 | Ceased/non-payment of the annual fee |