JP4955125B2 - 増加された数の偏波状態を有する変調方式 - Google Patents
増加された数の偏波状態を有する変調方式 Download PDFInfo
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- JP4955125B2 JP4955125B2 JP2011503402A JP2011503402A JP4955125B2 JP 4955125 B2 JP4955125 B2 JP 4955125B2 JP 2011503402 A JP2011503402 A JP 2011503402A JP 2011503402 A JP2011503402 A JP 2011503402A JP 4955125 B2 JP4955125 B2 JP 4955125B2
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- 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
- H04B10/50—Transmitters
- H04B10/516—Details of coding or modulation
- H04B10/548—Phase or frequency modulation
- H04B10/556—Digital modulation, e.g. differential phase shift keying [DPSK] or frequency shift keying [FSK]
- H04B10/5561—Digital phase modulation
-
- 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
- H04B10/50—Transmitters
- H04B10/501—Structural aspects
- H04B10/503—Laser transmitters
- H04B10/505—Laser transmitters using external modulation
-
- 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
- H04B10/50—Transmitters
- H04B10/516—Details of coding or modulation
- H04B10/532—Polarisation modulation
-
- 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
- H04B10/50—Transmitters
- H04B10/516—Details of coding or modulation
- H04B10/548—Phase or frequency modulation
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04J—MULTIPLEX COMMUNICATION
- H04J14/00—Optical multiplex systems
- H04J14/06—Polarisation multiplex systems
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L27/00—Modulated-carrier systems
- H04L27/18—Phase-modulated carrier systems, i.e. using phase-shift keying
- H04L27/20—Modulator circuits; Transmitter circuits
- H04L27/2032—Modulator circuits; Transmitter circuits for discrete phase modulation, e.g. in which the phase of the carrier is modulated in a nominally instantaneous manner
- H04L27/2053—Modulator circuits; Transmitter circuits for discrete phase modulation, e.g. in which the phase of the carrier is modulated in a nominally instantaneous manner using more than one carrier, e.g. carriers with different phases
- H04L27/206—Modulator circuits; Transmitter circuits for discrete phase modulation, e.g. in which the phase of the carrier is modulated in a nominally instantaneous manner using more than one carrier, e.g. carriers with different phases using a pair of orthogonal carriers, e.g. quadrature carriers
- H04L27/2067—Modulator circuits; Transmitter circuits for discrete phase modulation, e.g. in which the phase of the carrier is modulated in a nominally instantaneous manner using more than one carrier, e.g. carriers with different phases using a pair of orthogonal carriers, e.g. quadrature carriers with more than two phase states
- H04L27/2085—Modulator circuits; Transmitter circuits for discrete phase modulation, e.g. in which the phase of the carrier is modulated in a nominally instantaneous manner using more than one carrier, e.g. carriers with different phases using a pair of orthogonal carriers, e.g. quadrature carriers with more than two phase states with more than one phase shift per symbol period
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L27/00—Modulated-carrier systems
- H04L27/18—Phase-modulated carrier systems, i.e. using phase-shift keying
- H04L27/20—Modulator circuits; Transmitter circuits
- H04L27/2096—Arrangements for directly or externally modulating an optical carrier
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L27/00—Modulated-carrier systems
- H04L27/32—Carrier systems characterised by combinations of two or more of the types covered by groups H04L27/02, H04L27/10, H04L27/18 or H04L27/26
- H04L27/34—Amplitude- and phase-modulated carrier systems, e.g. quadrature-amplitude modulated carrier systems
- H04L27/3405—Modifications of the signal space to increase the efficiency of transmission, e.g. reduction of the bit error rate, bandwidth, or average power
- H04L27/3416—Modifications of the signal space to increase the efficiency of transmission, e.g. reduction of the bit error rate, bandwidth, or average power in which the information is carried by both the individual signal points and the subset to which the individual points belong, e.g. using coset coding, lattice coding, or related schemes
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
- H04L5/0001—Arrangements for dividing the transmission path
- H04L5/0014—Three-dimensional division
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
- H04L5/02—Channels characterised by the type of signal
- H04L5/04—Channels characterised by the type of signal the signals being represented by different amplitudes or polarities, e.g. quadriplex
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
- H04L5/02—Channels characterised by the type of signal
- H04L5/12—Channels characterised by the type of signal the signals being represented by different phase modulations of a single carrier
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- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Computer Networks & Wireless Communication (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Optics & Photonics (AREA)
- Optical Communication System (AREA)
- Electrochromic Elements, Electrophoresis, Or Variable Reflection Or Absorption Elements (AREA)
- Nitrogen Condensed Heterocyclic Rings (AREA)
- Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
Description
シンボル=SOPx・(ej0、ejπ/2、ejπ、ej3π/2)、x=1、..、4。
シンボル=SOPx・(ej0、ejπ/2、ejπ、ej3π/2)、x=1、..、6。
Claims (11)
- 複数の異なる偏波状態(SOP1−6)の間および異なる位相状態の間で変調された光信号を生成するステップを含み、
偏波状態(SOP1−6)が、ポアンカレ球上の同じ大円(10)上にすべては位置せず、
複数の偏波状態が、
ポアンカレ球上の単一の大円(10)を画定する第1の偏波状態(SOP1−4)と、
大円(10)の外に1つまたは複数の第2の偏波状態(SOP5−6)とを含む、光通信のための変調方法であって、
第2の偏波状態(SOP5−6)において、光信号の2つの直交する偏波成分のうちの一方が非活性化されることを特徴とする、方法。 - 光信号を生成するステップが、
2つの光波を位相変調するステップと、
位相変調された光波を偏波合成するステップとを含む、請求項1に記載の方法。 - 光信号を生成するステップが、
光信号の2つの直交する偏波成分に割り当てられた2つの光波のうちの一方を、選択的に非活性化するステップをさらに含む、請求項2に記載の方法。 - 光信号が、6つの偏波状態(SOP1−6)および各偏波状態における4つの位相状態の間で変調され、
光信号が一連の光シンボルを含み、シンボルが、偏波状態(SOP1−6)のうちの1つと位相状態のうちの1つとを有し、シンボル当たり平均で4ビット超がエンコードされる、請求項1に記載の方法。 - 2つの光シンボル当たり9ビットがエンコードされる、請求項4に記載の方法。
- 方法が、複数の合成された副搬送波信号を含むOFDM信号を生成し、それぞれの合成された副搬送波信号が、複数の偏波状態(SOP1−6)の間で変調される、請求項1に記載の方法。
- 複数の異なる偏波状態(SOP1−6)の間および異なる位相状態の間で変調された光信号を生成するための手段を含み、
複数の偏波状態が、ポアンカレ球上に単一の大円(10)を画定する第1の偏波状態(SOP1−4)を含み、
複数の偏波状態(SOP1−6)が、大円(10)の外に1つまたは複数の第2の偏波状態(SOP5−6)をさらに含む、光通信のための送信器であって、
光信号を生成するための手段が、光信号の2つの直交する偏波成分のうちの一方が第2の偏波状態(SOP5−6)において非活性化されるように構成されることを特徴とする、送信器。 - 光信号を生成するための手段が、
2つの光波を位相変調するための手段(2a、2b)と、
位相変調するための手段の下流に、偏波合成するための手段(3)とを含む、請求項7に記載の送信器。 - 光信号を生成するための手段が、
光信号の2つの直交する偏波成分に割り当てられた2つの光波のうちの一方を、選択的に非活性化するための手段(20)をさらに含む、請求項8に記載の送信器。 - 光信号を生成するための手段が、
送信されるべきデータを受信し、そのデータに従って、位相変調するための手段(2a、2b)に供給される非バイナリ変調信号(D1'−D4')を生成するように構成された、変調エンコーダ(4''')をさらに備え、非バイナリ変調信号が偏波状態(SOP1−6)を選択する、請求項8に記載の送信器。 - 光信号を生成するための手段が、
偏波合成するための手段(3)の下流に、偏波変調器(30)をさらに備える、請求項8に記載の送信器。
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP08290362A EP2109233B1 (en) | 2008-04-11 | 2008-04-11 | Modulation scheme with increased number of states of polarization |
EP08290362.6 | 2008-04-11 | ||
PCT/EP2009/053841 WO2009124861A1 (en) | 2008-04-11 | 2009-03-31 | Modulation scheme with increased number of states of polarization |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2011517222A JP2011517222A (ja) | 2011-05-26 |
JP4955125B2 true JP4955125B2 (ja) | 2012-06-20 |
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Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2011503402A Expired - Fee Related JP4955125B2 (ja) | 2008-04-11 | 2009-03-31 | 増加された数の偏波状態を有する変調方式 |
Country Status (8)
Country | Link |
---|---|
US (1) | US8073338B2 (ja) |
EP (1) | EP2109233B1 (ja) |
JP (1) | JP4955125B2 (ja) |
KR (1) | KR101118484B1 (ja) |
CN (1) | CN101557260B (ja) |
AT (1) | ATE476801T1 (ja) |
DE (1) | DE602008002051D1 (ja) |
WO (1) | WO2009124861A1 (ja) |
Families Citing this family (87)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7860402B2 (en) * | 2007-01-26 | 2010-12-28 | Fujitsu Limited | Modulating a signal according to 2n-PSK modulation |
US8673040B2 (en) | 2008-06-13 | 2014-03-18 | Donaldson Company, Inc. | Filter construction for use with air in-take for gas turbine and methods |
JP5476697B2 (ja) * | 2008-09-26 | 2014-04-23 | 富士通株式会社 | 光信号送信装置 |
JP5141498B2 (ja) * | 2008-10-30 | 2013-02-13 | 富士通株式会社 | 光送受信システム,光送信器,光受信器および光送受信方法 |
US8175466B2 (en) * | 2009-03-10 | 2012-05-08 | Nec Laboratories America, Inc. | Methods and systems for polarization multiplexed multilevel modulation for optical communication |
KR101382619B1 (ko) * | 2009-07-24 | 2014-04-07 | 한국전자통신연구원 | 광 송신 장치 및 방법과 광 수신 장치 및 방법 |
US8380085B2 (en) * | 2009-08-31 | 2013-02-19 | Nec Laboratories America, Inc. | High-speed multi-level electronic signal generation for optical communications |
FR2950746B1 (fr) * | 2009-09-30 | 2013-09-06 | Alcatel Lucent | Modulateur avec marquage de polarisation |
CN102687475B (zh) | 2009-10-13 | 2015-08-05 | 骁阳网络有限公司 | 用于在光学网络部件中处理数据的方法以及光学网络部件 |
CN102742187B (zh) * | 2009-12-15 | 2018-03-16 | 骁阳网络有限公司 | 减少的偏振相关损耗情况下传输光传输信号的方法和设备 |
EP2341642B1 (en) | 2010-01-05 | 2015-05-20 | Alcatel Lucent | Method for transmitting data on an optical channel |
US20120082464A1 (en) * | 2010-01-08 | 2012-04-05 | Nec Corporation | Coherent optical receiving apparatus, coherent optical communications system employing same, and coherent optical communications method |
JP5421792B2 (ja) * | 2010-01-12 | 2014-02-19 | 株式会社日立製作所 | 偏波多重送信器及び伝送システム |
CN102204201B (zh) | 2010-01-14 | 2013-11-06 | 华为技术有限公司 | 兼容实现pdm-bpsk和qpsk调制的方法及装置 |
US8498542B2 (en) * | 2010-01-21 | 2013-07-30 | Ciena Corporation | Multi-channel optical transceiver with offset quadrature amplitude modulation |
JP5372180B2 (ja) | 2010-02-04 | 2013-12-18 | 日本電信電話株式会社 | 送信方法、送受信方法、送信装置、及び送受信装置 |
JP5478336B2 (ja) * | 2010-04-08 | 2014-04-23 | 日本電信電話株式会社 | 光伝送方法、光伝送システム、光送信機、光受信機 |
EP2381594B1 (en) * | 2010-04-21 | 2017-05-31 | Alcatel Lucent | Polarization demultiplexing at a coherent optical receiver |
EP2385637B1 (en) | 2010-05-07 | 2013-12-25 | Telefonaktiebolaget LM Ericsson (Publ) | Methods and devices for modulating a signal |
JP5593840B2 (ja) * | 2010-05-28 | 2014-09-24 | 富士通株式会社 | 光送信機および光受信機 |
EP2395685B1 (en) * | 2010-06-10 | 2018-08-08 | ADVA Optical Networking SE | An apparatus and a method for modulation of an optical signal |
US8483394B2 (en) | 2010-06-15 | 2013-07-09 | Los Alamos National Security, Llc | Secure multi-party communication with quantum key distribution managed by trusted authority |
US9002009B2 (en) | 2010-06-15 | 2015-04-07 | Los Alamos National Security, Llc | Quantum key distribution using card, base station and trusted authority |
EP2591581A1 (en) * | 2010-07-05 | 2013-05-15 | Nokia Siemens Networks OY | Method and device for data processing in an optical communication network |
US8767575B2 (en) * | 2010-08-06 | 2014-07-01 | Futurewei Technologies, Inc. | Method and apparatus for broadband carrier frequency and phase recovery in coherent optical system |
US8483574B2 (en) * | 2010-10-15 | 2013-07-09 | Tyco Electronics Subsea Communications, Llc | Correlation-control QPSK transmitter |
JP5760419B2 (ja) * | 2010-12-13 | 2015-08-12 | 富士通株式会社 | 光送信装置および光送信方法 |
EP2493100B1 (en) * | 2011-02-22 | 2016-05-25 | Alcatel Lucent | Optical transmission with polarization division multiplexing |
US8437644B2 (en) * | 2011-02-23 | 2013-05-07 | Tyco Electronics Subsea Communications Llc | Vestigial phase shift keying modulation and systems and methods incorporating same |
EP2506478A1 (en) | 2011-03-25 | 2012-10-03 | Alcatel Lucent | Method of optical data transmission using polarization division multiplexing |
RU2460102C1 (ru) * | 2011-04-07 | 2012-08-27 | Александр Александрович Майер | Способ передачи информации и способ выделения сигнала |
US8433205B2 (en) * | 2011-04-13 | 2013-04-30 | Mitsubishi Electric Research Laboratories, Inc. | Crosstalk-free high-dimensional constellations for dual-polarized nonlinear fiber-optic communications |
US8873953B2 (en) * | 2011-06-17 | 2014-10-28 | Nec Laboratories America, Inc. | Multiple-symbol polarization switching for differential-detection modulation formats |
US8824501B2 (en) * | 2011-09-16 | 2014-09-02 | Alcatel Lucent | Performance enhancement through optical variants |
US9287994B2 (en) | 2011-09-30 | 2016-03-15 | Los Alamos National Security, Llc | Great circle solution to polarization-based quantum communication (QC) in optical fiber |
US9509506B2 (en) | 2011-09-30 | 2016-11-29 | Los Alamos National Security, Llc | Quantum key management |
US9866379B2 (en) | 2011-09-30 | 2018-01-09 | Los Alamos National Security, Llc | Polarization tracking system for free-space optical communication, including quantum communication |
JP2013081139A (ja) * | 2011-10-05 | 2013-05-02 | Kddi Corp | 偏波変調と周波数変調を併用した光伝送システムおよび伝送方法 |
WO2012163008A1 (zh) * | 2011-10-18 | 2012-12-06 | 华为技术有限公司 | 信号调制装置和调制方法 |
US9071364B1 (en) * | 2011-10-18 | 2015-06-30 | Clariphy Communications, Inc. | Coherent optical transceiver with programmable application modes |
CN103095623B (zh) * | 2011-10-27 | 2015-07-01 | 武汉邮电科学研究院 | 调制设备和方法以及解调设备和方法 |
US20130121631A1 (en) * | 2011-11-11 | 2013-05-16 | Gigoptix, Inc. | Dual polarization quadrature modulator |
JP2013183455A (ja) * | 2012-02-29 | 2013-09-12 | Zte (Usa) Inc | ナイキスト波長分割多重システム |
JP5773530B2 (ja) * | 2012-03-27 | 2015-09-02 | 株式会社国際電気通信基礎技術研究所 | 通信装置、通信システムおよびデジタル変復調方法 |
US9819418B2 (en) | 2012-08-17 | 2017-11-14 | Los Alamos National Security, Llc | Quantum communications system with integrated photonic devices |
JP6070062B2 (ja) * | 2012-10-26 | 2017-02-01 | 富士通株式会社 | 光送信システムおよび制御方法 |
JP6002557B2 (ja) * | 2012-11-28 | 2016-10-05 | 株式会社日立製作所 | 光多値信号予等化回路、光多値信号予等化送信器及び偏波多重光予等化送信器 |
US9094132B1 (en) * | 2013-01-23 | 2015-07-28 | Viasat, Inc. | High data rate optical transport network using 8-PSK |
EP2819327B1 (en) * | 2013-06-28 | 2018-04-11 | Alcatel Lucent | Method of optical data transmission using polarization division multiplexing and QPSK |
CN103905124B (zh) * | 2014-04-14 | 2016-03-30 | 北京邮电大学 | 一种qpsk光调制方法及系统 |
US9679559B2 (en) | 2014-05-29 | 2017-06-13 | Mitsubishi Electric Research Laboratories, Inc. | Source signal separation by discriminatively-trained non-negative matrix factorization |
US9577780B2 (en) | 2014-06-26 | 2017-02-21 | Luxtera, Inc. | Method and system for a polarization immune wavelength division multiplexing demultiplexer |
US9621275B2 (en) * | 2014-07-01 | 2017-04-11 | Mitsubishi Electric Research Laboratories, Inc. | Method for generating constant modulus multi-dimensional modulations for coherent optical communications |
WO2016046315A1 (en) * | 2014-09-24 | 2016-03-31 | Danmarks Tekniske Universitet | System for transmitting and receiving multi-polarized signals |
US9553675B2 (en) * | 2015-03-03 | 2017-01-24 | Infinera Corporation | Frequency domain coded modulation with polarization interleaving for fiber nonlinearity mitigation in digital sub-carrier coherent optical communication systems |
US9806739B1 (en) | 2016-08-04 | 2017-10-31 | Mitsubishi Electric Research Laboratories, Inc. | Optical signal transmitter and optical communication system using constant modulus formats, and method for generating modulation codes |
US9912413B1 (en) * | 2016-08-26 | 2018-03-06 | International Business Machines Corporation | Electro-optic phase modulator with no residual amplitude modulation |
WO2018058576A1 (zh) * | 2016-09-30 | 2018-04-05 | 华为技术有限公司 | 一种数据调制方法以及编码器 |
US10551640B2 (en) * | 2016-11-21 | 2020-02-04 | Futurewei Technologies, Inc. | Wavelength division multiplexed polarization independent reflective modulators |
EP3339922B1 (en) * | 2016-12-23 | 2023-07-26 | Huawei Technologies Research & Development Belgium NV | Optical chip and method for coupling light |
US10341022B2 (en) * | 2016-12-28 | 2019-07-02 | Zte Corporation | Optical pulse amplitude modulation transmission using digital pre-compensation |
JP6400245B1 (ja) * | 2017-08-28 | 2018-10-03 | 三菱電機株式会社 | 光通信装置 |
WO2019048028A1 (en) * | 2017-09-05 | 2019-03-14 | Huawei Technologies Co., Ltd. | OPTICAL TRANSMITTER AND TRANSMISSION METHOD |
US10601520B2 (en) | 2018-02-07 | 2020-03-24 | Infinera Corporation | Clock recovery for digital subcarriers for optical networks |
US11368228B2 (en) | 2018-04-13 | 2022-06-21 | Infinera Corporation | Apparatuses and methods for digital subcarrier parameter modifications for optical communication networks |
US10389447B1 (en) * | 2018-06-08 | 2019-08-20 | Ciena Corporation | Dimensional transformation |
US11095389B2 (en) | 2018-07-12 | 2021-08-17 | Infiriera Corporation | Subcarrier based data center network architecture |
US11483066B2 (en) | 2019-03-04 | 2022-10-25 | Infinera Corporation | Frequency division multiple access optical subcarriers |
US11258528B2 (en) | 2019-09-22 | 2022-02-22 | Infinera Corporation | Frequency division multiple access optical subcarriers |
US11336369B2 (en) | 2019-03-22 | 2022-05-17 | Infinera Corporation | Framework for handling signal integrity using ASE in optical networks |
US11418312B2 (en) | 2019-04-19 | 2022-08-16 | Infinera Corporation | Synchronization for subcarrier communication |
US10972184B2 (en) | 2019-05-07 | 2021-04-06 | Infinera Corporation | Bidirectional optical communications |
US11190291B2 (en) | 2019-05-14 | 2021-11-30 | Infinera Corporation | Out-of-band communication channel for subcarrier-based optical communication systems |
US11239935B2 (en) * | 2019-05-14 | 2022-02-01 | Infinera Corporation | Out-of-band communication channel for subcarrier-based optical communication systems |
US11476966B2 (en) | 2019-05-14 | 2022-10-18 | Infinera Corporation | Out-of-band communication channel for subcarrier-based optical communication systems |
US11296812B2 (en) | 2019-05-14 | 2022-04-05 | Infinera Corporation | Out-of-band communication channel for subcarrier-based optical communication systems |
US11489613B2 (en) | 2019-05-14 | 2022-11-01 | Infinera Corporation | Out-of-band communication channel for subcarrier-based optical communication systems |
US11088764B2 (en) * | 2019-05-14 | 2021-08-10 | Infinera Corporation | Out-of-band communication channel for sub-carrier-based optical communication systems |
US11297005B2 (en) | 2019-09-05 | 2022-04-05 | Infiriera Corporation | Dynamically switching queueing schemes for network switches |
US11356180B2 (en) | 2019-10-10 | 2022-06-07 | Infinera Corporation | Hub-leaf laser synchronization |
WO2021072409A1 (en) | 2019-10-10 | 2021-04-15 | Tulasi Veguru | Network switches systems for optical communications networks |
CA3157060A1 (en) | 2019-10-10 | 2021-04-15 | Infinera Corporation | Optical subcarrier dual-path protection and restoration for optical communications networks |
US10637572B1 (en) * | 2019-11-25 | 2020-04-28 | Bae Systems Information And Electronic Systems Integration Inc. | Full duplex laser communication terminal architecture with reconfigurable wavelengths |
US11009595B1 (en) | 2020-11-13 | 2021-05-18 | Bae Systems Information And Electronic Systems Integration Inc. | Continuously variable optical beam splitter |
US11002956B1 (en) | 2020-11-19 | 2021-05-11 | Bae Systems Information And Electronic Systems Integration Inc. | Refractive laser communication beam director with dispersion compensation |
CN114018391B (zh) * | 2021-11-04 | 2023-09-26 | 全球能源互联网研究院有限公司 | 一种抑制干涉光强衰落的方法及装置 |
WO2024075869A1 (ko) * | 2022-10-06 | 2024-04-11 | 엘지전자 주식회사 | 불균일 편광 변조를 위한 방법 및 장치 |
Family Cites Families (17)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
IT1232056B (it) * | 1989-03-28 | 1992-01-23 | Cselt Centro Studi Lab Telecom | Modulatore veloce della polarizza zione di una portante ottica |
NL1005263C2 (nl) * | 1996-03-06 | 1997-09-09 | Nederland Ptt | Optisch pakket-geschakeld transmissie-netwerk. |
JPH09244076A (ja) * | 1996-03-08 | 1997-09-19 | Toshiba Corp | 多波長光源 |
US6556326B2 (en) * | 1996-12-20 | 2003-04-29 | Tyco Telecommunications (Us) Inc. | Synchronous amplitude modulation for improved performance of optical transmission systems |
DE19960936A1 (de) * | 1999-12-17 | 2001-07-05 | Deutsche Telekom Ag | Optischer Phasenmodulator |
US6577413B1 (en) * | 2000-03-03 | 2003-06-10 | Pirelli Cavi E Sistemi S.P.A. | Method and apparatus for polarization multiplexing and demultiplexing optical tributary signals |
WO2002004989A2 (en) * | 2000-07-10 | 2002-01-17 | Victor Yeeman Lo | A system and method for increasing channel capacity of fiber-optic communication networks |
US20020077071A1 (en) | 2000-07-14 | 2002-06-20 | Williams Lawrence I. | Spin polarized wave division |
US7844186B2 (en) * | 2004-02-20 | 2010-11-30 | Alcatel-Lucent Usa Inc. | Method and apparatus for optical transmission |
DE102004047028A1 (de) * | 2004-09-28 | 2006-04-20 | Siemens Ag | Verfahren und Anordnung zur optischen Übertragung von Datensignalen mittels differentieller Phasenmodulation in einem Polarisations-Multiplexverfahren |
WO2006045324A1 (en) * | 2004-10-22 | 2006-05-04 | Pirelli & C. S.P.A. | Method and device for stabilizing the state of polarization of a polarization multiplexed optical radiation |
CA2595628C (en) * | 2005-01-26 | 2013-04-16 | Nokia Siemens Networks Gmbh & Co. Kg | Method for the optical transmission of polarization multiplex signals |
CN100395585C (zh) * | 2006-09-01 | 2008-06-18 | 清华大学 | 基于残留边带的偏振正交调制光标签方法 |
GB2441790A (en) * | 2006-09-12 | 2008-03-19 | Qinetiq Ltd | Electro-optic waveguide polarisation modulator |
US8285153B2 (en) * | 2007-02-27 | 2012-10-09 | Celight, Inc. | Single chip two-polarization quadrature synthesizer, analyser and optical communications system using the same |
JP5476697B2 (ja) * | 2008-09-26 | 2014-04-23 | 富士通株式会社 | 光信号送信装置 |
JP5169710B2 (ja) * | 2008-10-10 | 2013-03-27 | 富士通株式会社 | 光受信装置および分散補償シーケンス制御方法 |
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CN101557260A (zh) | 2009-10-14 |
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US8073338B2 (en) | 2011-12-06 |
WO2009124861A1 (en) | 2009-10-15 |
EP2109233A1 (en) | 2009-10-14 |
EP2109233B1 (en) | 2010-08-04 |
KR20110009139A (ko) | 2011-01-27 |
DE602008002051D1 (de) | 2010-09-16 |
US20090257755A1 (en) | 2009-10-15 |
CN101557260B (zh) | 2013-01-23 |
KR101118484B1 (ko) | 2012-03-12 |
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