RU93004532A - Цифровая оптическая система передачи сообщений со световодом, имеющим дисперсию на рабочей длине волны - Google Patents

Цифровая оптическая система передачи сообщений со световодом, имеющим дисперсию на рабочей длине волны

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Publication number
RU93004532A
RU93004532A RU93004532/09A RU93004532A RU93004532A RU 93004532 A RU93004532 A RU 93004532A RU 93004532/09 A RU93004532/09 A RU 93004532/09A RU 93004532 A RU93004532 A RU 93004532A RU 93004532 A RU93004532 A RU 93004532A
Authority
RU
Russia
Prior art keywords
intensity
lightwater
frequency modulation
width
optical system
Prior art date
Application number
RU93004532/09A
Other languages
English (en)
Other versions
RU2110895C1 (ru
Inventor
Веддинг Бертольд
Миттрих Мартин
Original Assignee
Алькатель Н.В.
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 DE4202863A external-priority patent/DE4202863A1/de
Priority claimed from DE19924216790 external-priority patent/DE4216790A1/de
Priority claimed from DE19924230601 external-priority patent/DE4230601A1/de
Application filed by Алькатель Н.В. filed Critical Алькатель Н.В.
Publication of RU93004532A publication Critical patent/RU93004532A/ru
Application granted granted Critical
Publication of RU2110895C1 publication Critical patent/RU2110895C1/ru

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Claims (1)

  1. При передаче цифровых сигналов по световодам, которые на рабочей длине волны имеют заметную хроматическую дисперсию, длина участка передачи очень ограничена, если подлежащий передаче цифровой сигнал преобразуется в оптический посредством модуляции интенсивности. Если вместо модуляции интенсивности применить частотную модуляцию (также называемую FSK - Freguency - Shift - Keying) можно сильно увеличить перекрываемый участок, однако на приемной стороне требуется пригодный для этого оптический приемник. Согласно изобретению используется простой оптический приемник, предназначенный не для частотной модуляции, а для модуляции интенсивности. Это возможно, потому что вследствие хроматической дисперсии световода и возникающего за этот счет разного времени пробега компонентов сигнала, имеющих различную длину волны /λo, λ1/ из начальной частотной модуляции в ходе передачи по световоду возникает изменение интенсивности, характер которой содержит подлежащий передаче цифровой сигнал.
RU93004532A 1992-02-01 1993-01-29 Цифровая оптическая система передачи сообщений со световодом, имеющим дисперсию на рабочей длине волны RU2110895C1 (ru)

Applications Claiming Priority (6)

Application Number Priority Date Filing Date Title
DEP4202863.9 1992-02-01
DE4202863A DE4202863A1 (de) 1992-02-01 1992-02-01 Digitales optisches nachrichtenuebertragungssystem mit einem bei der betriebswellenlaenge dispersionsbehafteten lichtwellenleiter
DEP4216790.6 1992-05-21
DE19924216790 DE4216790A1 (de) 1992-05-21 1992-05-21 Digitales optisches Nachrichtenübertragungssystem mit einem bei der Betriebswellenlänge dispersionsbehafteten Lichtwellenleiter
DE19924230601 DE4230601A1 (de) 1992-09-12 1992-09-12 Digitales optisches Nachrichtenübertragungssystem mit einem bei der Betriebswellenlänge dispersionsbehafteten Lichtwellenleiter
DEP4230601.9 1992-09-12

Publications (2)

Publication Number Publication Date
RU93004532A true RU93004532A (ru) 1995-04-20
RU2110895C1 RU2110895C1 (ru) 1998-05-10

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
RU93004532A RU2110895C1 (ru) 1992-02-01 1993-01-29 Цифровая оптическая система передачи сообщений со световодом, имеющим дисперсию на рабочей длине волны

Country Status (10)

Country Link
US (1) US5371625A (ru)
EP (1) EP0554736B1 (ru)
JP (1) JPH05347586A (ru)
CN (1) CN1040492C (ru)
AT (1) ATE136705T1 (ru)
AU (1) AU660062B2 (ru)
CA (1) CA2088459C (ru)
DE (1) DE59302134D1 (ru)
ES (1) ES2089595T3 (ru)
RU (1) RU2110895C1 (ru)

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