RU2000114830A - OPTICAL ATTENUATOR USING AN OPTICAL VALVE AND THE OPTICAL COMMUNICATION SYSTEM INCLUDING SUCH AN OPTICAL ATTENUATOR - Google Patents

OPTICAL ATTENUATOR USING AN OPTICAL VALVE AND THE OPTICAL COMMUNICATION SYSTEM INCLUDING SUCH AN OPTICAL ATTENUATOR

Info

Publication number
RU2000114830A
RU2000114830A RU2000114830/28A RU2000114830A RU2000114830A RU 2000114830 A RU2000114830 A RU 2000114830A RU 2000114830/28 A RU2000114830/28 A RU 2000114830/28A RU 2000114830 A RU2000114830 A RU 2000114830A RU 2000114830 A RU2000114830 A RU 2000114830A
Authority
RU
Russia
Prior art keywords
optical
magnetic field
intensity
attenuator
optical signal
Prior art date
Application number
RU2000114830/28A
Other languages
Russian (ru)
Other versions
RU2205436C2 (en
Inventor
Сунг-Дзун КИМ
Сеонг-Таек ХВАНГ
Соо-Янг ЙООН
Дзеонг-Мее КИМ
Original Assignee
Самсунг Электроникс Ко., Лтд.
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Priority claimed from KR1019970067079A external-priority patent/KR100274810B1/en
Application filed by Самсунг Электроникс Ко., Лтд. filed Critical Самсунг Электроникс Ко., Лтд.
Publication of RU2000114830A publication Critical patent/RU2000114830A/en
Application granted granted Critical
Publication of RU2205436C2 publication Critical patent/RU2205436C2/en

Links

Claims (2)

1. Оптический аттенюатор, содержащий оптический вентиль, включающий в себя вращатель Фарадея, в котором угол поворота плоскости поляризации изменяется в зависимости от интенсивности приложенного магнитного поля, для изменения уровня перекрывания оптического сигнала в соответствии с углом поворота плоскости поляризации и формирования выходного ослабленного оптического сигнала, катушку, установленную вокруг изолятора для приложения генерированного магнитного поля к изолятору, для генерации магнитного поля, интенсивность которого регулируется интенсивностью тока, и источник питания для подачи тока на катушку и регулирования интенсивности тока, отличающийся тем, что катушка содержит магнитный сердечник, установленный внутри катушки, для увеличения магнитного потока.1. An optical attenuator comprising an optical valve including a Faraday rotator, in which the angle of rotation of the plane of polarization varies depending on the intensity of the applied magnetic field, to change the level of overlap of the optical signal in accordance with the angle of rotation of the plane of polarization and the formation of the output attenuated optical signal, a coil mounted around the insulator for applying the generated magnetic field to the insulator, for generating a magnetic field whose intensity Uhlir current intensity, and a power source for supplying current to the coil, and regulating the current intensity, characterized in that the coil comprises a magnetic core installed inside the coil, for increasing magnetic flux. 2. Система оптической связи, включающая в себя оптический передатчик, первый и второй оптические аттенюаторы, и оптический приемник для предотвращения повреждения оптического приемника за счет регулировки мощности выходного оптического сигнала оптического передатчика при использовании первого оптического аттенюатора и ослабления мощности оптического сигнала, принимаемого оптическим приемником, при использовании второго оптического аттенюатора, где каждый из двух оптических аттенюаторов содержит оптический вентиль, включающий в себя вращатель Фарадея, в котором угол вращения плоскости поляризации изменяется в зависимости от интенсивности приложенного магнитного поля, для изменения уровня перекрывания оптического сигнала в соответствии с углом поворота плоскости поляризации и формирования выходного ослабленного оптического сигнала, катушку, установленную вокруг изолятора для приложения генерированного магнитного поля к изолятору, для генерации магнитного поля, интенсивность которого регулируется интенсивностью тока, и источник питания для подачи тока к генератору магнитного поля и регулировки интенсивности тока. 2. An optical communication system including an optical transmitter, first and second optical attenuators, and an optical receiver for preventing damage to the optical receiver by adjusting the power of the output optical signal of the optical transmitter when using the first optical attenuator and attenuating the power of the optical signal received by the optical receiver, when using a second optical attenuator, where each of the two optical attenuators contains an optical valve, including a Faraday rotator, in which the angle of rotation of the plane of polarization varies depending on the intensity of the applied magnetic field, to change the level of overlap of the optical signal in accordance with the angle of rotation of the plane of polarization and the formation of the output attenuated optical signal, a coil mounted around the insulator for applying the generated magnetic field to insulator, for generating a magnetic field, the intensity of which is regulated by the current intensity, and a power source for supplying current to eratoru magnetic field and adjusting the current intensity.
RU2000114830/28A 1997-12-09 1998-12-08 Optical attenuator employing optical valve and optical communication system incorporating such optical attenuator RU2205436C2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR1019970067079A KR100274810B1 (en) 1997-12-09 1997-12-09 Optical attenuator using isolator and optical communication system comprising it
KR1997/67079 1997-12-09

Publications (2)

Publication Number Publication Date
RU2000114830A true RU2000114830A (en) 2002-05-27
RU2205436C2 RU2205436C2 (en) 2003-05-27

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
RU2000114830/28A RU2205436C2 (en) 1997-12-09 1998-12-08 Optical attenuator employing optical valve and optical communication system incorporating such optical attenuator

Country Status (12)

Country Link
US (1) US6441944B1 (en)
EP (1) EP1038203A1 (en)
JP (1) JP2001526407A (en)
KR (1) KR100274810B1 (en)
CN (1) CN1124510C (en)
AR (1) AR017829A1 (en)
AU (1) AU751728B2 (en)
BR (1) BR9813406A (en)
CA (1) CA2312933C (en)
RU (1) RU2205436C2 (en)
TW (1) TW408528B (en)
WO (1) WO1999030205A1 (en)

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