KR967001528A - A method and apparatus for generating an optical signal comprising a component Rf (generation of optical signals with rf components) - Google Patents

A method and apparatus for generating an optical signal comprising a component Rf (generation of optical signals with rf components) Download PDF

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Publication number
KR967001528A
KR967001528A KR1019950704078A KR19950704078A KR967001528A KR 967001528 A KR967001528 A KR 967001528A KR 1019950704078 A KR1019950704078 A KR 1019950704078A KR 19950704078 A KR19950704078 A KR 19950704078A KR 967001528 A KR967001528 A KR 967001528A
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carrier frequency
optical signal
signal
optical
1rf
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KR1019950704078A
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Korean (ko)
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크리스토퍼 스미스 이안
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티모시 가이 에드윈 리드베터
브리티쉬 텔리커뮤니케이션즈 퍼블릭 리미티드 캄퍼니
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Priority to GB93302537.1 priority
Priority to GB93302540.5 priority
Priority to EP93302540 priority
Application filed by 티모시 가이 에드윈 리드베터, 브리티쉬 텔리커뮤니케이션즈 퍼블릭 리미티드 캄퍼니 filed Critical 티모시 가이 에드윈 리드베터
Priority to PCT/GB1994/000675 priority patent/WO1994023507A1/en
Publication of KR967001528A publication Critical patent/KR967001528A/en

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    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04KSECRET COMMUNICATION; JAMMING OF COMMUNICATION
    • H04K1/00Secret communication
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04BTRANSMISSION
    • H04B10/00Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
    • H04B10/25Arrangements specific to fibre transmission
    • H04B10/2575Radio-over-fibre, e.g. radio frequency signal modulated onto an optical carrier
    • H04B10/25752Optical arrangements for wireless networks
    • H04B10/25758Optical arrangements for wireless networks between a central unit and a single remote unit by means of an optical fibre
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04BTRANSMISSION
    • H04B10/00Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
    • H04B10/50Transmitters
    • H04B10/501Structural aspects
    • H04B10/503Laser transmitters
    • H04B10/505Laser transmitters using external modulation
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04BTRANSMISSION
    • H04B10/00Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
    • H04B10/50Transmitters
    • H04B10/508Pulse generation, e.g. generation of solitons

Abstract

신호원(4a)에서 레이저(1)의 광학 출력(3)을 제어하기 위해 사용하고 신호원(4b)에 의해 발생된 다른 보다 낮은 주파수 변조를 가지는 제어 신호에 의해 광학 변조기(6)에서 광학 출력(3)을 변조하는 보다 낮은 주파수 변조를 발생하므로써 출력(3)에서 높은 무선 변조를 가지는 광학 빔이 발생된다. A laser (1) an optical output (3) the optical output from the optical modulator (6) by a control signal having a low frequency modulation than the other arising from the use to control and signal source (4b) of the signal source (4a) by generating a low-frequency modulation for modulating more than 3, the optical beam having a high radio modulated by the output (3) is generated. 보다 낮은 주파수 변조중 하나 또는 두개 모두는 또한 정보를 포함하는 변조를 수행한다. All than one of the low frequency modulation or both may also perform modulation containing the information. 광학 변조기(6)의 효과는 제어 신호의 변조 주파수에 의한 광학 빔에 수행된 변조를 상승 변환하는 것이다. Effect of the optical modulator (6) is to up-converting the modulated optical beam to perform due to the modulation frequency of the control signal. 광학 변조기(6)는 Mach-Zehnder 변조기일수 있다. The optical modulator 6 is Mach-Zehnder modulator days. 제어 입력에 대한 변조기의 비선형 특성은 제어 신호의 진폭을 선택하므로써 이용될 수 있고, 따라서 광학 출력(3)은 신호원(4b)에 의해 발생된 다수의 변조 주파수에 의해 상승 변환된다. A non-linear characteristic of the modulator to the control input can be used By selecting the amplitude of the control signal, so the optical output (3) is converted by the rising number of modulation frequency generated by the signal source (4b). 이와 같은 방법은 고주파수 변조를 레이저 입력(2) 또는 제어 입력(7)에 직접적으로 적용할 필요가 없다. Such a method does not need to be applied directly to the high-frequency modulation input to a laser (2) or the control input (7).

Description

RF 성분을 포함하는 광학 신호를 발생하는 방법 및 장치 (GENERATION OF OPTICAL SIGNALS WITH RF COMPONENTS) Method for generating an optical signal including an RF component and a device (GENERATION OF OPTICAL SIGNALS WITH RF COMPONENTS)

본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음 This information did not disclose more professional information because lumbar Articles

제1도는 본 발명의 방법을 실시하기 위한 구성의 개략도. A first schematic diagram of a configuration for carrying out the method of the invention leads.

Claims (20)

  1. i)제1RF 반송파 주파수와 다른 제2RF 반송파 주파수를 포함하는 제2RF 성분을 가지는 제1광학 신호를 발생하는 단계; i) a second step for generating a first optical signal having a first component comprising a 2RF 1RF carrier frequency different from the first carrier frequency 2RF; ⅱ)제1RF 반송파 주파수와 다른 제3RF 반송파 주파수를 포함하는 제3RF 성분을 가지는 제어신호를 발생하는 단계; Ⅱ) generating a control signal having a first component comprising a first 3RF 1RF 3RF carrier frequency different from the first carrier frequency; 상기 제2 또는 제3RF 성분이 정보를 포함하며; The second and or the 3RF component comprises information; ⅲ)광학 변조기에 제1광학 신호를 적용하는 단계; Ⅲ) applying the first optical signal to the optical modulator; 및 ⅳ)제1RF 반송파 주파수가 상기 제3반송파 주파수 또는 제3반송파 주파수의 정수배에 의해 상승 변환된 제2반송파 주파수이며, 상기 제1RF 반송파 주파수 및 정보성분에 의해 변조된 출력 광학 신호를 발생하도록 제1광학 신호를 변조하기 위해 광학 변조기에 제어 신호를 적용하는 단계; And a ⅳ) claim to have 1RF carrier frequency generating said third carrier frequency or a second carrier frequency, the up-converting by an integer multiple of the third carrier frequency, the output optical signal modulated by the first 1RF carrier frequency and the information component applying a control signal to the optical modulator to modulate the first optical signal; 로 구성되는 것을 특징으로 하는 제1RF 반송파 주파수와 정보 성분을 포함하는 제1RF 성분을 갖는 신호를 발생하는 방법. A method for generating a signal having a first component comprising 1RF 1RF carrier frequency and the information component, characterized in that consisting of.
  2. 제1항에 있어서, 상기 제1광학 신호가 정보 성분을 포함하는 것을 특징으로 하는 방법. The method of claim 1, characterized in that the first optical signal includes the information component.
  3. 제1항에 있어서, 상기 제어 신호가 정보 성분을 포함하는 것을 특징으로 하는 방법. The method of claim 1, characterized in that the control signal includes the information component.
  4. 제1항에 있어서, 암호화의 한 방법이 되고, 입력 광학 신호 및 제어 신호가 정보 성분을 포함하고, 그중 하나가 선정된 암호화 코드인 것을 특징으로 하는 방법. According to claim 1, being a method of encryption, and the input optical signal and the control signal include an information component, characterized in that the encrypted code one of which is selected.
  5. 제1항 내지 제4항중 어느 한 항에 있어서, 상기 제어 신호가 전기 신호인 것을 특징으로 하는 방법. According to claim 1 to claim 4, wherein any one of, characterized in that said control signal is an electrical signal.
  6. 제1항 내지 제5항중 어느 한 항에 있어서, 상기 변조기의 광학 출력이 제어 신호에 대한 비선형 응답을 가지는 것을 특징으로 하는 방법. According to claim 1 to claim 5, wherein any one of, characterized in that the optical output of the modulator has a non-linear response to the control signal.
  7. 제6항에 있어서, 제3RF 주파수의 정수배인 주파수에 의해 제2RF 반송파 주파수가 제1RF 반송파 주파수로 상승 변환되도록 제어신호의 진폭이 선택되는 것을 특징으로 하는 방법. The method of claim 6, wherein characterized in that the first 2RF carrier frequency by an integral multiple of the frequency of the frequency at which the 3RF 1RF carrier frequency to select the amplitude of the control signal so that the up-converting.
  8. 제1항 내지 제7항에 있어서, 상기 제1광학 신호가 레이저의 광학 신호를 제어하므로써 발생되는 것을 특징으로 하는 방법. The process according to any one of the preceding claims, characterized in that the said first optical signal is generated by controlling the laser of the optical signal.
  9. 제1항 내지 제8항중 어느 한 항에 의해 발생된 제1RF 반송파 주파수 및 정보 성분을 포함하는 제1RF 성분을 가지는 변조된 광학 신호. The modulated optical signal having a first component comprising a first 1RF 1RF carrier frequency and the information component produced by the 1 to claim 8, wherein any one of.
  10. 제1RF 반송파 주파수 및 정보 성분을 포함하는 RF성분에 의해 변조되고 제1항 내지 제8항의 어느 한 항의 방법에 의해 발생된 광학 신호를 검출하므로써 발생된 제1RF 반송파 주파수 및 정보 성분을 가지는 전기 또는 무선 신호. The 1RF carrier frequency and modulated by a RF component including the information component of claim 1 to claim electricity having a first 1RF carrier frequency and the information component generated by detecting the optical signal generated by the claim 8 any one of the methods or a wireless signal.
  11. 신호에 선정된 암호화 코드의 것을 보상하는 다른 변조를 적용하며, 제4항 또는 그 항을 인용하는 다른 종속항의 방법에 따라 발생될 때 제9항 또는 제10항에 따라 신호를 해석하는 방법. Apply a different modulation to compensate for the encrypted code to the selection signal, and the time the generated according to another method of the dependent claims 4 or quote that wherein how to interpret the signal in accordance with claim 9 or 10.
  12. ⅰ)광학 입력, 광학 출력 및 제어 입력을 가지는 광학 변조기; Ⅰ) optical modulator having an optical input, an optical output and a control input; ⅱ)상기 제1RF 반송파 주파수와 다른 제2RF 반송파 주파수를 포함하는 제2RF 성분을 가지는 광학 입력에 변조된 광학 신호를 공급하는 수단; Ⅱ) means for supplying the modulated optical signal to an optical input having a first 2RF components including the second carrier frequency different from the first 1RF 2RF carrier frequency; ⅲ)상기 제1RF 반송파 주파수와 다늘 제3RF 반송파 주파수를 포함하는 제3RF 성분을 가지는 제어 신호를 제어 입력에 공급하는 수단; Ⅲ) means for supplying a control signal having a first component 3RF to control inputs including the first carrier frequency and 1RF daneul claim 3RF carrier frequency; 및 ⅳ)상기 광학 신호 또는 상기 제어 입력에 상기 정보 성분을 포함하는 변조를 적용하는 수단을 구비하고, 상기 구성에 따라 광학 출력에서 상기 제1RF 반송파 주파수 및 상기 정보 성분에 의해 변조된 광학 신호가 발생되고, 상기 제1반송파 주파수는 상기 제3반송파 주파수 또는 상기 제3반송파 주파수의 정수배에 의해 상승 변환된 상기 제2반송파 주파수인 것을 특징으로 하는 제1RF 반송파 주파수 및 정보 성분을 포함하고 젭RF 성분을 가지는 광학 신호를 발생하는 장치. And ⅳ) is an optical signal modulated by the first 1RF carrier frequency and said information component to said optical signal or said control input and means for applying a modulation comprising said information component, the optical output in accordance with said configuration occurs and, said first carrier frequency for said third carrier frequency or 1RF carrier frequency and including an information component and Jeb RF component, characterized in that the third carrier with the second carrier frequency up-converting by an integer multiple of the frequency apparatus for generating an optical signal having.
  13. 제11항에 있어서, 광학 신호 및 제어 신호에 정보 성분을 포함하는 변조를 적용하는 수단을 더 포함하고, 상기 정보 성분중 하나가 선정된 암호화 코드인 것을 특징으로 하는 암호화 수단. 12. The method of claim 11, further comprising means for applying modulation comprising information components to the optical signal and the control signal, and the encryption means, characterized in that one of the information components of the encrypted code selection.
  14. 제12항 또는 제13항에 있어서, 상기 제어 입력이 전기 입력인 것을 특징으로 하는 암호화 수단. Claim 12 or claim 13, wherein the encryption means, characterized in that said control input is an electrical input.
  15. 제14항에 있어서, 상기 광학 변조기가 Mach-Zehnder 변조기인 것을 특징으로 하는 암호화 수단. The method of claim 14, wherein the encryption means is the optical modulator, characterized in that Mach-Zehnder modulators.
  16. 제 15항에 있어서, 상기 제어 신호를 공급하는 수단이 신호를 발생하기 위하여 배열되고, 그에 따라 제2RF 성분이 제1RF 성분을 발생시키기 위하여 제3RF 성분인 주파수의 정수배에 의해 상승 변환되는 것을 특징으로 하는 암호화 수단. 16. The method of claim 15, arranged to generate the means for supplying the control signal signal, characterized in that the 2RF components increases conversion by an integral multiple of the frequency claim 3RF component to generate a first 1RF components accordingly encryption means.
  17. 제12항 내지 제16항중 어느 한 항에 있어서, 상기 변조된 광학 신호를 공급하는 수단이 레이저 및 제2RF 성분을 발생시키기 위한 레이저의 바이어스 전압을 제어하는 수단을 포함하는 것을 특징으로 하는 암호화 수단. Of claim 12 to 16 Compounds according to any one of the preceding, the encryption means, characterized in that the means for supplying the modulated optical signal comprises a means for controlling the bias voltage of the laser for generating a laser and a 2RF components.
  18. 제어신호의 진폭이, 출력 광학 신호가 제어 RF 주파수의 정부배인 RF 주파수에 의해 변조되도록 하고, 입력 광학 신호를 비선형 전송 기능을 가지는 변조기의 입력에 적용하는 단계 및 변조기의 제어 입력에 제어 RF주파수를 가지는 제어 신호를 적용하는 단계를 포함하는 RF변조를 가지는 출력 광학 신호를 발생하는 방법. The amplitude of the control signal, the output optical signal and that is modulated by the state times the RF frequency of the control RF frequency, the control RF frequency to a control input of the stage and a modulator for applying the input optical signal to the input of a modulator having a non-linear transfer function method for generating an output optical signal having an RF modulation comprising the step of applying a control signal having a.
  19. 제18항에 있어서, 상기 변조기가 Mach-Zehnder 변조기인 것을 특징으로 하는 방법. 19. The method of claim 18, wherein the modulator characterized in that the Mach-Zehnder modulator.
  20. 제18항 또는 제19항에 있어서, 상기 입력 광학 신호가 초기 RF변조를 수행하고, 출력 광학 신호가 다수의 제어 RF주파수에 의해 상승 변환된 초기 RF벼조인 RF변조를 포함하는 방법. Claim 18 according to any one of claims 19, wherein the said input optical signal including performing an initial RF modulation, the output optical signal is up-converting the initial RF rice join RF modulated by the plurality of the control RF frequency.
    ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임. ※ Note: Will you disclose by the first application information.
KR1019950704078A 1993-03-31 1994-03-30 A method and apparatus for generating an optical signal comprising a component Rf (generation of optical signals with rf components) KR967001528A (en)

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EP93302537 1993-03-31
GB93302537.1 1993-03-31
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EP93302540 1993-03-31
PCT/GB1994/000675 WO1994023507A1 (en) 1993-03-31 1994-03-30 Generation of optical signals with rf components

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Families Citing this family (57)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4444218A1 (en) * 1994-12-13 1996-06-27 Sel Alcatel Ag An optical transmitter for an optical message transmission system in connection with a radio system
CN100393005C (en) * 1996-07-19 2008-06-04 内克斯特格网络公司 Telecommunications system simultaneous receiving and modulating optical signal
GB2320634A (en) * 1996-12-19 1998-06-24 Northern Telecom Ltd Optical sampling by using an interferometer to modulate a pulse train
GB2320635A (en) * 1996-12-19 1998-06-24 Northern Telecom Ltd Optical timing detection using an interferometer
US5864625A (en) * 1997-03-17 1999-01-26 At&T Corp Methods and apparatus for secure optical communications links
US6556327B1 (en) * 1997-11-06 2003-04-29 Matsushita Electric Industrial Co., Ltd. Signal converter, optical transmitter and optical fiber transmission system
IL123107A (en) * 1998-01-29 2001-05-20 Univ Ben Gurion System and method for information security in optical communication networks
US6694128B1 (en) 1998-08-18 2004-02-17 Parkervision, Inc. Frequency synthesizer using universal frequency translation technology
US6560301B1 (en) 1998-10-21 2003-05-06 Parkervision, Inc. Integrated frequency translation and selectivity with a variety of filter embodiments
US6061555A (en) 1998-10-21 2000-05-09 Parkervision, Inc. Method and system for ensuring reception of a communications signal
US7010286B2 (en) 2000-04-14 2006-03-07 Parkervision, Inc. Apparatus, system, and method for down-converting and up-converting electromagnetic signals
US6091940A (en) 1998-10-21 2000-07-18 Parkervision, Inc. Method and system for frequency up-conversion
US6370371B1 (en) 1998-10-21 2002-04-09 Parkervision, Inc. Applications of universal frequency translation
US6061551A (en) 1998-10-21 2000-05-09 Parkervision, Inc. Method and system for down-converting electromagnetic signals
US6813485B2 (en) 1998-10-21 2004-11-02 Parkervision, Inc. Method and system for down-converting and up-converting an electromagnetic signal, and transforms for same
US7515896B1 (en) 1998-10-21 2009-04-07 Parkervision, Inc. Method and system for down-converting an electromagnetic signal, and transforms for same, and aperture relationships
US6542722B1 (en) 1998-10-21 2003-04-01 Parkervision, Inc. Method and system for frequency up-conversion with variety of transmitter configurations
US6049706A (en) 1998-10-21 2000-04-11 Parkervision, Inc. Integrated frequency translation and selectivity
US7039372B1 (en) 1998-10-21 2006-05-02 Parkervision, Inc. Method and system for frequency up-conversion with modulation embodiments
US7236754B2 (en) 1999-08-23 2007-06-26 Parkervision, Inc. Method and system for frequency up-conversion
US6118566A (en) * 1998-11-04 2000-09-12 Corvis Corporation Optical upconverter apparatuses, methods, and systems
US6292598B1 (en) 1998-11-04 2001-09-18 Corvis Corporation Optical transmission apparatuses, methods, and systems
US6529305B1 (en) 1998-11-04 2003-03-04 Corvis Corporation Optical transmission apparatuses, methods, and systems
US6704558B1 (en) 1999-01-22 2004-03-09 Parkervision, Inc. Image-reject down-converter and embodiments thereof, such as the family radio service
US6359716B1 (en) * 1999-02-24 2002-03-19 Massachusetts Institute Of Technology All-optical analog FM optical receiver
US6704549B1 (en) 1999-03-03 2004-03-09 Parkvision, Inc. Multi-mode, multi-band communication system
US7065162B1 (en) 1999-04-16 2006-06-20 Parkervision, Inc. Method and system for down-converting an electromagnetic signal, and transforms for same
US7110444B1 (en) 1999-08-04 2006-09-19 Parkervision, Inc. Wireless local area network (WLAN) using universal frequency translation technology including multi-phase embodiments and circuit implementations
US6853690B1 (en) 1999-04-16 2005-02-08 Parkervision, Inc. Method, system and apparatus for balanced frequency up-conversion of a baseband signal and 4-phase receiver and transceiver embodiments
US8295406B1 (en) 1999-08-04 2012-10-23 Parkervision, Inc. Universal platform module for a plurality of communication protocols
US7693230B2 (en) 1999-04-16 2010-04-06 Parkervision, Inc. Apparatus and method of differential IQ frequency up-conversion
US6879817B1 (en) 1999-04-16 2005-04-12 Parkervision, Inc. DC offset, re-radiation, and I/Q solutions using universal frequency translation technology
AU2748101A (en) * 1999-10-27 2001-06-06 California Institute Of Technology Opto-electronic devices for processing and transmitting rf signals based on brillouin selective sideband amplification
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
JP4624603B2 (en) * 2000-06-29 2011-02-02 パナソニック株式会社 Optical transmission system for radio access and high-frequency optical transmitter
US7454453B2 (en) 2000-11-14 2008-11-18 Parkervision, Inc. Methods, systems, and computer program products for parallel correlation and applications thereof
US7072427B2 (en) 2001-11-09 2006-07-04 Parkervision, Inc. Method and apparatus for reducing DC offsets in a communication system
AT295971T (en) * 2002-02-08 2005-06-15 Freescale Semiconductor Inc Conversion between optical and high-frequency signals
US7142788B2 (en) * 2002-04-16 2006-11-28 Corvis Corporation Optical communications systems, devices, and methods
US7146109B2 (en) * 2002-04-26 2006-12-05 Lucent Technologies Inc. Analog modulation of optical signals
US7379883B2 (en) 2002-07-18 2008-05-27 Parkervision, Inc. Networking methods and systems
US7460584B2 (en) 2002-07-18 2008-12-02 Parkervision, Inc. Networking methods and systems
JP4592588B2 (en) * 2003-02-07 2010-12-01 パナソニック株式会社 Optical transmission system
US20070229937A1 (en) * 2006-03-31 2007-10-04 Lothar Benedict Josef Moeller Inexpensive terahertz wave generator
WO2009055210A2 (en) * 2007-10-25 2009-04-30 Battelle Memorial Institute Optical-to-millimeter wave conversion
EP2344915A4 (en) 2008-10-09 2015-01-21 Corning Cable Sys Llc Fiber optic terminal having adapter panel supporting both input and output fibers from an optical splitter
EP2247004B1 (en) * 2009-04-28 2015-06-03 Alcatel Lucent A method for data transmission using a LINC amplifier, a LINC amplifier, a transmitting device, a receiving device, and a communication network therefor
EP2320581B1 (en) * 2009-11-10 2013-10-30 Alcatel Lucent A method for transmission of a data signal using an amplifier, an amplifier, a transmitting device, and a receiving device therefor
US20110206383A1 (en) * 2010-02-25 2011-08-25 Georgia Tech Research Corporation Systems and methods for providing an optical information transmission system
DE102010013727A1 (en) * 2010-03-31 2011-10-06 Deutsche Telekom Ag Method for adjustable delay of optical signals
WO2012054454A2 (en) 2010-10-19 2012-04-26 Corning Cable Systems Llc Transition box for multiple dwelling unit fiber optic distribution network
US9316485B2 (en) * 2010-11-29 2016-04-19 Nokia Technologies Oy Apparatus comprising a plurality of interferometers and method of configuring such apparatus
US9219546B2 (en) * 2011-12-12 2015-12-22 Corning Optical Communications LLC Extremely high frequency (EHF) distributed antenna systems, and related components and methods
US9097790B2 (en) * 2012-02-02 2015-08-04 The United States Of America As Represented By The Secretary Of The Army Method and apparatus for providing radio frequency photonic filtering
US10110307B2 (en) 2012-03-02 2018-10-23 Corning Optical Communications LLC Optical network units (ONUs) for high bandwidth connectivity, and related components and methods
JP6086535B2 (en) * 2013-07-29 2017-03-01 日本電信電話株式会社 Optical subcarrier frequency converter
WO2017129220A1 (en) * 2016-01-25 2017-08-03 Telefonaktiebolaget Lm Ericsson (Publ) Methods and apparatus for multiplexing signals

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB8808043D0 (en) * 1988-04-06 1988-05-25 British Telecomm Methods & apparatus for transmitting information
EP0466182B1 (en) * 1990-07-13 2002-10-16 Nec Corporation Optical communication apparatus using intensity modulation
US5166821A (en) * 1991-03-12 1992-11-24 General Instrument Corporation Reduction of non-linear effects in optical fiber communication systems and method of using same
JP3036876B2 (en) * 1991-03-20 2000-04-24 日本電気株式会社 Optical transmitter
US5359450A (en) * 1992-06-25 1994-10-25 Synchronous Communications, Inc. Optical transmission system
US5379309A (en) * 1993-08-16 1995-01-03 California Institute Of Technology High frequency source having heterodyned laser oscillators injection-locked to a mode-locked laser
JP2739813B2 (en) * 1993-12-20 1998-04-15 日本電気株式会社 Polarization mode dispersion compensation method

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